CN113279334B - Construction method of one-step pouring molding system of double-column type vase pier steel template - Google Patents
Construction method of one-step pouring molding system of double-column type vase pier steel template Download PDFInfo
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- CN113279334B CN113279334B CN202110544294.4A CN202110544294A CN113279334B CN 113279334 B CN113279334 B CN 113279334B CN 202110544294 A CN202110544294 A CN 202110544294A CN 113279334 B CN113279334 B CN 113279334B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 115
- 239000010959 steel Substances 0.000 title claims abstract description 115
- 238000010276 construction Methods 0.000 title claims abstract description 48
- 238000000465 moulding Methods 0.000 title claims description 9
- 244000035744 Hura crepitans Species 0.000 claims abstract description 53
- 230000002787 reinforcement Effects 0.000 claims abstract description 34
- 239000004567 concrete Substances 0.000 claims abstract description 22
- 239000002689 soil Substances 0.000 claims abstract description 15
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000007788 roughening Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 238000005096 rolling process Methods 0.000 claims description 49
- 238000011084 recovery Methods 0.000 claims description 45
- 230000010412 perfusion Effects 0.000 claims description 33
- 238000003825 pressing Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 description 7
- 239000002023 wood Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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Abstract
The invention relates to a construction method of a one-step pouring forming system of a double-column type vase pier steel template, which comprises the following construction steps of: 1) construction preparation; 2) roughening the top surface of the pier bottom bearing platform; 3) setting up a temporary fixing bracket; 4) binding a pier body reinforcement cage; 5) erecting a pier body template; 6) and (6) pouring concrete. The beneficial effects of the invention are: firstly, a supporting sand box is arranged in foundation soil, and a sand box filling body is filled in the supporting sand box, so that effective support can be provided for a support system; meanwhile, the vertical position of the bottom bracing column is limited by the frame bottom sleeve and the bottom fastening bolt, so that the stability of the bottom bracing column can be effectively improved; the splicing units are adopted to erect the upper support system, so that the laying efficiency of the support system can be effectively improved, and the stress performance of the structure is improved.
Description
Technical Field
The invention relates to a construction method of a one-time pouring molding system of a double-column vase pier steel template, which can effectively reduce the difficulty of site construction, improve the disassembly and assembly of the template and improve the efficiency of site construction, and is suitable for the curved pier column engineering of a bridge.
Background
With the continuous acceleration of the updating of bridge construction technology, more and more piers are changed from gravity type piers to light piers. The double-column pier has the characteristics of small sectional area, large section modulus, light dead weight, and good structural rigidity and strength, is widely applied to bridge construction, and still has construction difficulties of slow construction, poor quality, great influence on the environment and the like.
There has been a twin columns template structure among the prior art, its characterized in that: the column formwork support comprises two steel frames and a wood wedge, wherein the two steel frames are inserted between the adjacent panels of the two formwork cylinders, the two side plates respectively abut against the outer surfaces of the panels at two sides, and the wood wedge is respectively embedded and fills the end part of a gap between the two steel frames; the two steel frames are tightly propped through the embedded wood wedge, and each steel frame is formed by connecting each unit steel frame. Although the construction method solves the problems of quick installation and disassembly during template construction, can ensure that the panel does not deform during pouring to a certain extent, and reduces the probability of mold expansion, the construction method has improvements in the aspects of influence on external environment, improvement of concrete pouring quality, improvement of structural stress performance and the like.
In view of this, in order to effectively reduce the on-site construction difficulty of the bridge double-column pier and improve the construction quality and the appearance effect, the construction method of the double-column vase pier steel template one-step pouring forming system, which can not only improve the laying efficiency of the bracket system and the stress performance of the structure, but also improve the construction efficiency and reduce the construction difficulty, is urgently needed to be invented at present.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the construction method of the one-step pouring forming system of the double-column type vase pier steel template, which can effectively reduce the difficulty of site construction, improve the disassembly and assembly of the template and improve the efficiency of site construction.
The construction method of the one-step pouring molding system of the double-column vase pier steel template comprises the following construction steps:
1) construction preparation: pouring concrete of a pier bottom bearing platform, and preparing materials and devices required by construction;
2) roughening the top surface of the pier bottom cushion cap: arranging chiseling bracing columns and column top cross beams on foundation soil bodies on two sides of a pier bottom bearing platform, and firmly connecting column bottom supporting plates at the bottoms of the chiseling bracing columns with the foundation soil bodies through supporting plate anchor bars; the pipeline connecting body is firmly connected with the guide sliding beam at the lower part of the column top beam, and the lower part of the pipeline connecting body is provided with a horizontal recovery pipe and a horizontal water supply pipe, so that the horizontal recovery pipe is communicated with the vertical recovery pipe, and the horizontal water supply pipe is communicated with the vertical water supply pipe; the method comprises the steps that firstly, closed curtain cloth is arranged on the peripheries of a column top cross beam and a chiseling support column, water is supplied to a water supply transverse pipe through a water supply longitudinal pipe, chiseling treatment is carried out on the upper surface of a pier bottom cushion cap through a water jet nozzle on the lower portion of the water supply transverse pipe, chiseling sundries are synchronously recycled through a recycling pipe opening on the lower portion of the recycling transverse pipe and the recycling longitudinal pipe, and the positions of the water supply transverse pipe and the recycling transverse pipe are controlled by controlling a pipeline connecting body through a sliding cable; along the sliding direction, the horizontal water supply pipe is arranged in front of the horizontal recycling pipe;
3) and (3) setting up a temporary fixing support: firstly, arranging a supporting sand box in foundation soil, filling a sand box filling body in the supporting sand box, and then arranging a support bottom plate on the upper surface of the supporting sand box; inserting the bottom ends of the bottom struts into a frame bottom sleeve on the upper surface of the support bottom plate, and connecting the adjacent bottom struts through strut sleeves and bottom fastening bolts; arranging a support platform plate at the top end of the bottom support column, arranging a counter-force vertical plate and a support base plate on the upper surface of the support platform plate, and arranging a support lacing wire between the support platform plate and a poured pier bottom bearing platform; arranging splicing units spliced into a whole on a shelving bedplate on a support platform plate, arranging a lifting bottom plate between a first lifting body on the support platform plate and the mounted splicing units, jacking the shelving bedplate and the splicing units to a set height through a second lifting body between the shelving bedplate and the support platform plate, pushing the splicing units to a supporting base plate below the mounted splicing units through a transverse control body on one side of the splicing units, enabling the first lifting body to fall down, and repeating jacking construction of the splicing units; the splicing units connected up and down are firmly connected through the connection bolts between the plates; a support guardrail is arranged on the upper surface of a support platform plate of the support platform at the top of the splicing unit, and a protective hanging net is arranged along the periphery of the support platform; according to the bearing requirement, injecting slurry or mortar into the supporting sand box through a sand box grouting pipe on the bottom plate of the bracket, and curing a sand box filling body;
4) binding a pier body reinforcement cage: the position control sliding groove and the pier stud vertical rib are firmly connected through the vertical rib hoop, the vertical distance of the sliding support plate on the position control sliding groove is adjusted firstly, and then the sliding support plate and the position control sliding groove are firmly connected through the sliding plate fastening bolt; a vertical plate connecting rib is arranged between the vertical rib hoop and the position control chute; firstly, placing pier column stirrups in stirrup limiting grooves on the upper surfaces of the sliding supporting plates, then firmly connecting the pier column stirrups with pier column vertical reinforcements, and performing binding construction on pier body reinforcement cages;
5) erecting a pier body template: the pier body template comprises a linear side template and a curved side template which are respectively provided with a plane section and a curved section which are connected with the bridge pier stud; inserting the support vertical rods into the gaps of the double columns, and firmly connecting the support side pressure plates with the inner side walls of the double columns through the pier inter-jacking bodies, so that the two ends of the rotary stay rod are firmly connected with the support side pressure plates and the support vertical rods through stay rod connecting hinges; arranging a vertical supporting plate on a supporting platform plate of a supporting platform, arranging a template control body and a first side supporting plate on the vertical supporting plate and a supporting vertical rod facing the pier body steel reinforcement cage side, and connecting the first side supporting plate with a linear side mold through a template connecting groove and a template fastening bolt; a second supporting bolt is arranged between the supporting transverse plate and the second side supporting plate at the top of the splicing unit, a first supporting bolt is arranged between the supporting vertical rod and the third side supporting plate, and the second side supporting plate and the third side supporting plate are respectively and firmly connected with the template connecting groove at the outer side of the curved side mold;
6) pouring concrete: circumferentially arranging a temperature control water pipe at the periphery of the pier body template, arranging a perfusion support column on the upper surface of the support transverse plate, arranging a perfusion top plate and a perfusion control body on the top surface of the perfusion support column, and positioning the perfusion control body on the perfusion top plate; the concrete is poured into the pouring guide pipe through the external pouring equipment to form a bridge pier stud, the horizontal position of the pouring guide pipe is controlled through the pouring control position body, and the distance between the flexible sling, the vibrating rod and the pouring guide pipe and the concrete pouring top surface is controlled through the vertical control position body.
Preferably, the method comprises the following steps: step 2) the chiseling support columns are formed by rolling profile steel and are uniformly distributed at intervals along the longitudinal direction of the pier bottom bearing platform, a column top beam is arranged at the top ends of the chiseling support columns, and 2-3 guide sliding beams which are longitudinally parallel to the pier bottom bearing platform are arranged on the lower surfaces of the column top beams; the guide sliding beam is formed by rolling a steel plate, and the lower surface of the guide sliding beam is provided with a channel which has a T-shaped cross section and is connected with the pipeline connecting body in a sliding manner; the recovery longitudinal pipes are communicated with the recovery transverse pipes, the recovery longitudinal pipes and the recovery transverse pipes are made of rubber hoses and steel pipe materials respectively, and 2-3 recovery pipe openings are formed in the direction, facing the direction of the pier bottom bearing platform, of the recovery transverse pipes; the water supply longitudinal pipe is communicated with the water supply transverse pipe, the water supply longitudinal pipe and the water supply transverse pipe are respectively made of rubber hoses and steel pipe materials, and 2-3 water jet nozzles are arranged on the side, facing the pier bottom bearing platform, of the recovery transverse pipe; the pipeline connecting body is formed by rolling a steel plate, the cross section of the pipeline connecting body is in a T shape, and the pipeline connecting body is connected with the sliding inhaul cable in a welding or sticking way; the closed curtain cloth is formed by cutting a geomembrane or a rubber sheet and is connected with the connected chiseling support column and the column top cross beam in a sticking way.
Preferably, the method comprises the following steps: step 3) the cross section of the supporting sand box is in an isosceles trapezoid shape and is made of steel plates or reinforced concrete materials, and the outer side wall of the supporting sand box is provided with a sand box connecting hole; pebbles, broken stones or gravels are adopted as the sand box filling body; the bracket bottom plate is formed by rolling a steel plate, the upper surface of the bracket bottom plate is provided with a bracket bottom sleeve, and the bracket bottom plate is provided with a sand box grouting pipe communicated with a sand box filling body; one end of the support lacing wire is anchored into the pier bottom bearing platform through the built-in anchor pulling plate, and the other end of the support lacing wire penetrates through the support platform plate and is fastened through an anchorage device or a bolt; the splicing unit comprises a unit bottom plate, a unit top plate and unit supporting columns, the unit supporting columns are arranged between the unit bottom plate and the unit top plate, and unit reinforcing bolts and unit vertical plates are arranged between adjacent unit supporting columns; the unit vertical plates are formed by rolling steel plates and are arranged along the length direction of the splicing unit, the unit vertical plates are connected with the unit supporting columns through unit reinforcing bolts and vertical pipe sleeves in sequence, the vertical pipe sleeves are sleeved outside the unit supporting columns, the unit bottom plates are formed by rolling the steel plates, and inter-plate bolt holes for the inter-plate connecting bolts to penetrate through are reserved in the unit bottom plates; the bottom fastening bolt comprises a screw rod and a bolt, two ends of the bottom fastening bolt are vertically welded and connected with the support column sleeve, the fastening directions of the screw rods on two sides of the bolt are opposite, and the support column sleeve is sleeved on the outer side of the bottom support column; the horizontal position control body adopts a hydraulic jack, two sides of the horizontal position control body are respectively connected with the pushing pressing plate and the counterforce vertical plate in a welding mode, the counterforce vertical plate is fixed on the support platform plate, and the pushing pressing plate is in contact with the splicing unit.
Preferably, the method comprises the following steps: step 4), the position control sliding groove is formed by rolling a steel plate, a sliding channel with a T-shaped cross section is arranged in the direction parallel to the height direction of the pier body steel reinforcement cage, and the position control sliding groove is connected with a sliding supporting plate; the fagging that slides adopts the steel sheet rolling to form, deviates from pier shaft steel reinforcement cage side and sets up the slide fastening bolt, sets up the stirrup spacing groove towards the upper surface of pier shaft steel reinforcement cage side.
Preferably, the method comprises the following steps: step 5) the inter-column supporting body comprises a supporting vertical rod, an inter-pier jacking body, a supporting side pressure plate and a rotating supporting rod, and two ends of the rotating supporting rod are respectively connected with the supporting vertical rod and the supporting side pressure plate through a supporting rod connecting hinge; the inter-pier pressing body adopts a hydraulic jack; the template position control body is connected with the first side supporting plate in a welding mode through a hydraulic jack; the straight-line side mold is formed by rolling a steel plate, a template connecting groove is formed in the side, away from the pier body steel reinforcement cage, and the template connecting groove is firmly connected with the first side supporting plate through a template fastening bolt; the first supporting bolt and the second supporting bolt respectively comprise a screw rod and a bolt, the fastening directions of the screw rods on the two sides of the bolt are opposite, and the supporting vertical rod, the second side supporting plate and the third side supporting plate which are connected with each other are hinged through the ends of the supporting bolts; the curved side die is rolled into a set curved surface shape by adopting a steel plate, a template connecting groove is arranged on the side deviating from the pier body steel reinforcement cage, and the template connecting groove is firmly connected with the second side supporting plate or the third side supporting plate through the template fastening bolt.
Preferably, the method comprises the following steps: step 6), the pouring top plate is formed by rolling a steel plate, and a roller channel and a pouring channel which are connected with the shifting roller are arranged on the upper surface of the pouring top plate; the perfusion guide pipe is a steel pipe, the top end of the perfusion guide pipe penetrates through a reserved hole in the integral connecting plate, and the bottom end of the perfusion guide pipe is connected with the flexible sling through a pipeline sleeve and a pipe bottom connecting plate; the integral connecting plate is connected with the perfusion position control body, the vertical position control body adopts a hydraulic jack, the top end of the vertical position control body is vertically welded with the integral connecting plate, and the bottom end of the vertical position control body is provided with a shifting roller; the flexible sling adopts a rope and is connected with external rolling and pulling equipment; the bottom of the tube bottom connecting plate is provided with a vibrating rod.
The invention has the beneficial effects that:
(1) chiseling through the upper surface of water sword shower nozzle to pier bottom cushion cap is handled, violently manages and retrieve the recovery vertical tube through retrieving the mouth of pipe in step and retrieves the chisel hair debris to violently manage and retrieve the position of violently managing through the cable control pipeline connector that slides and water supply, can effectively reduce the influence of construction to external environment when promoting chisel hair efficiency of construction.
(2) Firstly, a supporting sand box is arranged in foundation soil, and a sand box filling body is filled in the supporting sand box, so that effective support can be provided for a support system; meanwhile, the vertical position of the bottom bracing column is limited by the frame bottom sleeve and the bottom fastening bolt, so that the stability of the bottom bracing column can be effectively improved; the splicing units are adopted to erect the upper support system, so that the laying efficiency of the support system can be effectively improved, and the stress performance of the structure is improved.
(3) The vertical rib hoop is sleeved outside the vertical rib of the pier column, the vertical position of the pier column hoop is limited by the sliding supporting plate, the positioning precision of the pier column hoop arrangement can be improved, and the pier column hoop arrangement can be supported by means of the pier column vertical rib.
(4) The supporting side pressing plates are supported by the vertical supporting rods and the pressing bodies between the rotary supporting rods and the piers, so that the supporting difficulty of the linear side die and the curved side die can be effectively reduced; meanwhile, the template connecting grooves are formed in the outer sides of the straight line side die and the curve side die, and the first side supporting plate and the second side supporting plate are arranged, so that the requirements of template support and quick removal can be met synchronously.
(5) The temperature control water pipes are distributed on the periphery of the template along the annular direction and can be used for controlling the hydration heat in the concrete pouring construction process; the concrete is poured into the pouring guide pipe through the external pouring equipment, and the transverse position of the pouring guide pipe can be controlled through the pouring control body, so that the dynamic control of the concrete pouring process can be realized.
Drawings
FIG. 1 is a construction flow chart of one-time pouring molding of a double-column type vase pier steel template;
FIG. 2 is a schematic view of a water jet galling treatment structure of a pier bottom cushion cap;
FIG. 3 is a schematic view of the connection structure of the pipe connector and the horizontal recovery pipe and the horizontal water supply pipe;
FIG. 4 is a schematic view of a temporary fixing bracket set-up structure;
FIG. 5 is a schematic view of a pier body reinforcement cage binding structure;
FIG. 6 is a schematic view of a pier stud stirrup positioning structure;
FIG. 7 is a schematic view of a straight side mold support structure;
fig. 8 is a schematic view of a controlled placement of pier shaft concrete;
fig. 9 is a plan view of the glide configuration of the irrigation guide tube.
Description of reference numerals: 1-a foundation soil body; 2-a pier bottom bearing platform; 3-chiseling a chaplet; 4-a column top beam; 5-supporting plate anchor bars; 6-column bottom supporting plate; 7-a pipe connection; 8-a recovery pipe orifice; 9-guiding the sliding beam; 10-horizontal recovery pipe; 11-horizontal water supply pipe; 12-a water supply longitudinal pipe; 13-recovering the longitudinal pipe; 14-closed cord fabric; 15-water jet; 16-a sliding cable; 17-supporting the sand box; 18-a flask filling body; 19-a rack base plate; 20-bottom bracing column; 21-a frame bottom sleeve; 22-a strut casing; 23-bottom fastening bolt; 24-a support platform plate; 25-counter-force vertical plate; 26-a support backing plate; 27-a bracket lacing wire; 28-resting platen; 29-a first lifting body; 30-lifting the bottom plate; 31-transverse control body; 32-a second lifting body; 33-inter-board connecting bolts; 34-bracket guard bar; 35-protective hanging net; 36-a sand box grouting pipe; 37-a second support peg; 38-vertical rib hoop; 39-position control sliding chutes; 40-pier stud vertical reinforcement; 41-a sliding supporting plate; 42-a skateboard fastening bolt; 43-supporting a transverse plate; 44-pier stud stirrup; 45-stirrup limiting grooves; 46-pier body reinforcement cage; 47-pier shaft template; 48-straight line side mould; 49-curved side mold; 50-inter-column support; 51-a supporting vertical rod; 52-pressing body between piers; 53-supporting the side pressure plates; 54-rotating the brace bar; 55-stay bar connecting hinge; 56-a scaffold platform; 57-vertical supporting plates; 58-template control body; 59-a first side support plate; 60-connecting the template with the groove; 61-template fastening bolts; 62-a second side support plate; 63-a first support peg; 64-a third side support plate; 65-temperature control water pipe; 66-pouring a support column; 67-pour plate; 68-perfusion control body; 69-perfusion guide tube; 70-vertical control body; 71-a flexible sling; 72-connecting holes of the sand box; 73-built-in anchor plate; 74-a splicing unit; 75-cell floor; 76-cell top plate; 77-unit brace; 78-unit reinforcement plugs; 79-cell riser; 80-pushing the pressing plate; 81-bridge pier stud; 82-a shifting roller; 83-roller channel; 84-integral tie-plates; 85-conduit sleeve; 86-a tube bottom connecting plate; 87-standpipe casing; 88-vertical plate connecting ribs; 89-vibrating a rod; 90-plate bolt holes; 91-end hinge of support bolt; 92-perfusion channel.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to provide an understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Example one
Fig. 1 is a one-time pouring forming construction flow chart of the double-column type vase pier steel template, and referring to fig. 1, the construction method of the one-time pouring forming system of the double-column type vase pier steel template comprises the following construction steps:
1) construction preparation: pouring concrete on the pier bottom bearing platform 2 to prepare materials and devices required by construction;
2) roughening the top surface of the pier bottom cushion cap: arranging chiseling bracing columns 3 and column top cross beams 4 on foundation soil bodies 1 on two sides of a pier bottom bearing platform 2, and firmly connecting column bottom bracing plates 6 at the bottoms of the chiseling bracing columns 3 with the foundation soil bodies 1 through bracing plate anchor bars 5; the pipeline connecting body 7 is firmly connected with the guide sliding beam 9 at the lower part of the column top beam 4, the horizontal recovery pipe 10 and the horizontal water supply pipe 11 are arranged at the lower part of the pipeline connecting body 7, the horizontal recovery pipe 10 is communicated with the vertical recovery pipe 13, and the horizontal water supply pipe 11 is communicated with the vertical water supply pipe 12; firstly, arranging a closed curtain 14 on the peripheries of a column top beam 4 and a chiseling support column 3, supplying water to a horizontal water supply pipe 11 through a vertical water supply pipe 12, chiseling the upper surface of a pier bottom cushion cap 2 through a water jet nozzle 15 on the lower part of the horizontal water supply pipe 11, synchronously recovering chiseling sundries through a recovery pipe opening 8 on the lower part of the horizontal recovery pipe 10, the horizontal recovery pipe 10 and the vertical recovery pipe 13, and controlling a pipeline connector 7 through a sliding cable 16 so as to control the positions of the horizontal water supply pipe 11 and the horizontal recovery pipe 10; along the sliding direction, the horizontal water supply pipe 11 is arranged in front of the horizontal recovery pipe 10;
3) and (3) setting up a temporary fixing support: firstly, arranging a supporting sand box 17 in a foundation soil body 1, filling a sand box filling body 18 in the supporting sand box 17, and then arranging a support bottom plate 19 on the upper surface of the supporting sand box 17; the bottom ends of the bottom struts 20 are inserted into a frame bottom sleeve 21 on the upper surface of the bracket bottom plate 19, and the adjacent bottom struts 20 are connected through strut sleeves 22 and bottom fastening bolts 23; arranging a support platform plate 24 at the top end of the bottom support pillar 20, arranging a counter-force vertical plate 25 and a support cushion plate 26 on the upper surface of the support platform plate 24, and arranging a support tie bar 27 between the support platform plate 24 and the poured pier bottom bearing platform 2; placing the splicing unit 74 spliced into a whole on a rest bedplate 28 on a support platform plate 24, firstly arranging a lifting bottom plate 30 between a first lifting body 29 on the support platform plate 24 and the mounted splicing unit 74, then jacking the rest bedplate 28 and the splicing unit 74 to a set height through a second lifting body 32 between the rest bedplate 28 and the support platform plate 24, pushing the splicing unit 74 to a support base plate 26 below the mounted splicing unit 74 through a transverse control body 31 on one side of the splicing unit 74, then enabling the first lifting body 29 to fall down, and repeating the jacking construction of the splicing unit 74; the splicing units 74 which are connected up and down are firmly connected through the inter-plate connecting bolt 33; a support guardrail 34 is arranged on the upper surface of the support platform plate 24 of the support platform 56 at the top of the splicing unit 74, and a protective hanging net 35 is arranged along the periphery of the support platform 56; according to the bearing requirement, injecting slurry or mortar into the supporting sand box 17 through a sand box grouting pipe 36 on the bracket bottom plate 19, and solidifying the sand box filling body 18;
4) binding a pier body reinforcement cage: the pier body reinforcement cage 46 comprises pier column vertical ribs 40 and pier column stirrups 44, the position control chutes 39 and the pier column vertical ribs 40 are firmly connected through the vertical rib hoops 38, the vertical spacing of the sliding support plate 41 on the position control chutes 39 is firstly adjusted, and then the sliding support plate 41 and the position control chutes 39 are firmly connected through the sliding plate fastening bolts 42; a vertical plate connecting rib 88 is arranged between the vertical rib hoop 38 and the position control chute 39; firstly, placing pier column stirrups 44 in stirrup limiting grooves 45 on the upper surface of a sliding support plate 41, then firmly connecting the pier column stirrups 44 with pier column vertical reinforcements 40, and performing binding construction on a pier body reinforcement cage 46;
5) erecting a pier body template: the pier body template 47 comprises a straight line side template 48 and a curved line side template 49 which are respectively provided with a plane section and a curved section which are connected with the bridge pier column 81; inserting the integrally spliced inter-column supporting bodies 50 into the gaps of the double columns through the supporting vertical rods 51, and firmly connecting the supporting side pressure plates 53 with the inner side walls of the double columns through the inter-pier jacking bodies 52, so that the two ends of the rotating supporting rods 54 are firmly connected with the supporting side pressure plates 53 and the supporting vertical rods 51 through the supporting rod connecting hinges 55; a vertical supporting plate 57 is arranged on the support platform plate 24 of the support platform 56, a template control body 58 and a first side supporting plate 59 are arranged on the vertical supporting plate 57 and the side of the supporting vertical rod 51 facing the pier body steel reinforcement cage 46, and the first side supporting plate 59 is connected with the linear side mold 48 through a template connecting groove 60 and a template fastening bolt 61; a first supporting bolt 63 is arranged between the vertical supporting rod 51 and the second side supporting plate 62, a second supporting bolt 37 is arranged between the horizontal supporting plate 43 at the top of the splicing unit 74 and the second side supporting plate 62, the first supporting bolt 63 is arranged between the vertical supporting rod 51 and the third side supporting plate 64, and the second side supporting plate 62 and the third side supporting plate 64 are respectively and firmly connected with the template connecting groove 60 on the outer side of the curved side die 49;
6) pouring concrete: arranging a temperature control water pipe 65 along the circumferential direction on the periphery of the pier body template 47, arranging a perfusion support column 66 on the upper surface of the support transverse plate 43, arranging a perfusion top plate 67 and a perfusion control body 68 on the top surface of the perfusion support column 66, and positioning the perfusion control body 68 on the perfusion top plate 67; concrete is poured into the pouring guide pipe 69 through external pouring equipment to form a bridge pier 81, the horizontal position of the pouring guide pipe 69 is controlled through the pouring control body 68, and the distance between the flexible sling 71, the vibrating rod 89 and the pouring guide pipe 69 and the top concrete pouring surface is controlled through the vertical control body 70.
Example two
Fig. 2 is a schematic view of a water jet galling treatment structure of a pier bottom cushion cap, fig. 3 is a schematic view of a connection structure of a pipeline connector and a horizontal recovery pipe and a horizontal water supply pipe, fig. 4 is a schematic view of a temporary fixing support erection structure, fig. 5 is a schematic view of a pier body reinforcement cage binding structure, fig. 6 is a schematic view of a pier column stirrup positioning structure, fig. 7 is a schematic view of a straight line side mold erection structure, fig. 8 is a schematic view of a pier body concrete controlled pouring structure, and fig. 9 is a plan view of a pouring guide pipe sliding structure. Referring to fig. 2-9, a double-column vase pier steel template one-step pouring molding system is adopted, a pier bottom bearing platform 2 is subjected to scabbling treatment through a water jet 15, and scabbling sundries are synchronously recycled through a recycling pipe orifice 8; filling a sand box filling body 18 in a supporting sand box 17 of the foundation soil body 1; the vertical position of the bottom stay 20 is defined by the frame bottom sleeve 21 and the bottom fastening bolt 23; an upper support system is erected by adopting a splicing unit 74; the outer side of the pier column vertical rib 40 is sleeved with a vertical rib hoop 38, and the vertical position of the pier column hoop 44 can be limited by a sliding support plate 41; the pier shaft template 47 is supported by the inter-column supporting bodies 50; the outer sides of the straight line side die 48 and the curved side die 49 are respectively provided with a die plate connecting groove 60, and the position of the pier body die plate 47 is controlled by a first side supporting plate 59, a second side supporting plate 62 and a third side supporting plate 64; the temperature control water pipe 65 is arranged on the periphery of the pier body template 47 along the circumferential direction, and the transverse position of the perfusion guide pipe 69 can be controlled through the perfusion control body 68.
The foundation soil body 1 is cohesive soil in a plastic state.
The chisel edge support column 3 is rolled by H-shaped steel with the specification of 150 multiplied by 7 multiplied by 10, 3 pieces are respectively arranged at two sides of the pier bottom bearing platform 2, the top end of the chisel edge support column 3 is provided with a column top beam 4, and the lower surface of the column top beam 4 is provided with 2 guide sliding beams 9 which are longitudinally parallel to the pier bottom bearing platform 2.
The pier bottom bearing platform 2 is formed by casting reinforced concrete materials in situ, and the concrete strength grade is C50; the column top cross beam 4 is formed by rolling H-shaped steel with the specification of 300 × 150 × 6.5 × 9.
The guide sliding beam 9 is formed by rolling a steel plate with the thickness of 2mm, the lower surface is provided with a channel with a T-shaped cross section and connected with the pipeline connector 7 in a sliding way, the height is 6cm, and the width is 20 cm; the pipeline connector 7 is formed by rolling a steel plate with the thickness of 10mm, the cross section of the pipeline connector is T-shaped, the pipeline connector is connected with a sliding cable 16 in a welding mode, and the sliding cable 16 is a steel wire rope with the diameter of 20 mm.
The supporting plate anchor bars 5 are steel pipes with the diameter of 100 mm.
The column bottom supporting plate 6 is formed by rolling a steel plate with the thickness of 10mm and is connected with the supporting plate anchor rib 5 through a stud.
The recovery longitudinal pipes 13 are communicated with the recovery transverse pipes 10, all made of steel pipe materials with the diameter of 100mm, and 2 recovery pipe openings 8 are formed in the direction, facing the pier bottom cushion caps 2, of the recovery transverse pipes 10; the water supply longitudinal pipes 12 are communicated with the water supply transverse pipes 11, the water supply longitudinal pipes are made of steel pipe materials with the diameter of 60mm, and 3 water jet nozzles 15 are arranged on the recovery transverse pipe 10 facing the direction of the pier bottom cushion cap 2.
The diameter of the recycling pipe orifice 8 is 100 mm; the water jet 15 is a high-pressure water pipe jet.
The closed curtain cloth 14 is formed by cutting a geomembrane with the thickness of 2mm and is connected with the connected chiseling support column 3 and the column top cross beam 4 in a sticking way.
The cross section of the supporting sand box 17 is in an isosceles trapezoid shape, the supporting sand box is made of a steel plate with the thickness of 1mm, the bottom width is 30cm, the top width is 60cm, and a sand box connecting hole 72 is formed in the outer side wall; the sand box filling body 18 adopts broken stones; the sand box connecting hole 72 is circular in section and 20mm in diameter.
The bracket bottom plate 19 is formed by rolling a steel plate with the thickness of 10mm, the upper surface is provided with a bracket bottom sleeve 21, and the bracket bottom plate 19 is provided with a sand box grouting pipe 36 communicated with the sand box filling body 18. The frame bottom sleeve 21 is a steel tube with the strength grade of Q345D and the inner diameter of 210mm rolled by a steel plate with the thickness of 12mm, and the sand box grouting tube 36 is a steel tube with the diameter of 60 mm.
The bottom brace 20 is rolled by a steel tube with a diameter of 200 mm.
The bottom fastening bolt 23 comprises a high-strength screw rod with the diameter of 60mm and a bolt, two ends of the bolt are vertically welded with the support column sleeve 22, fastening directions of the screw rods on two sides of the bolt are opposite, and the support column sleeve 22 is formed by rolling a steel pipe with the inner diameter of 210mm and the wall thickness of 8 mm.
The support pad 26 is rolled from a 2mm thick steel plate and is cube shaped, 50cm in height, 100cm in width and 100cm in length.
The support lacing wire 27 adopts a screw rod with the diameter of 30mm, one end of the screw rod is anchored into the pier bottom bearing platform 2 through the built-in anchor lacing plate 73, and the other end of the screw rod passes through the support platform plate 24 and then is fastened through a bolt; the built-in anchor plate 73 is formed by rolling a steel plate with the thickness of 10 mm; the support platform plate 24 is formed by rolling a steel plate with the thickness of 10 mm.
The resting bedplate 28 is made of a steel plate with a thickness of 10mm by rolling.
The first elevating body 29 and the second elevating body 32 respectively employ hydraulic jacks having strokes of 30cm and 100 cm.
The lifting bottom plate 30 is formed by rolling a steel plate with the thickness of 10 mm.
The transverse control body 31 adopts a hydraulic jack with the stroke of 100cm, and two sides of the transverse control body are respectively welded with the pushing pressure plate 80 and the reaction vertical plate 25; the pushing pressing plate 80 and the reaction vertical plate 25 are both formed by rolling steel plates with the thickness of 2 mm.
The steel guard rail of the rack guard rail 34 has a height of 1.1 m.
The protective hanging net 35 is a steel wire rope net.
The first support bolt 63 and the second support bolt 37 both comprise a high-strength screw rod and a bolt with the diameter of 60mm, the fastening directions of the screw rods on the two sides of the bolt are opposite, and the support vertical rod 51, the second side support plate 62 and the third side support plate 64 which are connected with each other are connected through a support bolt end hinge 91. The supporting vertical rod 51 is made of a steel pipe with the diameter of 200mm, and the supporting bolt end hinge 91 is a spherical hinge with the diameter of 60 mm.
The first side supporting plate 59, the second side supporting plate 62 and the third side supporting plate 64 are formed by rolling steel plates with the thickness of 3 mm.
The vertical rib ferrule 38 is a pipe ferrule with an inner diameter of 30 mm.
The position control sliding chute 39 is formed by rolling a steel plate with the thickness of 2mm, a sliding channel with a T-shaped cross section is arranged in the direction parallel to the height direction of the pier body steel reinforcement cage 46, and the position control sliding chute 39 is connected with the sliding supporting plate 41.
The pier body reinforcement cage 46 comprises pier stud vertical ribs 40 and pier stud stirrups 44; the pier stud vertical ribs 40 adopt twisted steel bars with the diameter of 32 mm; the pier stud stirrup 44 is a threaded steel bar with a diameter of 10 mm.
The fagging 41 that slides adopts thickness to form for 2 mm's steel sheet rolling, deviates from pier shaft steel reinforcement cage 46 side and sets up slide fastening bolt 42, sets up stirrup spacing groove 45 towards the upper surface of pier shaft steel reinforcement cage 46 side, and the opposite side meets with slide fastening bolt 42. Wherein, slide fastening bolt 42 includes diameter 20 mm's high strength screw rod and bolt, and stirrup spacing groove 45 adopts thickness 2 mm's steel sheet rolling to form, and the upper surface sets up the pier stud stirrup spread groove that the cross-section is the U-shaped.
The supporting horizontal plate 43 is formed by rolling a steel plate with the thickness of 10 mm.
The pier body template 47 comprises a straight line side template 48 and a curved line side template 49;
the straight line side form 48 is formed by rolling a steel plate with the thickness of 3mm, a template connecting groove 60 is arranged on the side departing from the pier body steel reinforcement cage 46, and the template connecting groove 60 is firmly connected with the first side supporting plate 59 through a template fastening bolt 61.
The curved side die 49 is formed by rolling a steel plate with the thickness of 3mm, is rolled into a set curved surface, is provided with a template connecting groove 60 on the side departing from the pier body steel reinforcement cage 46, and is firmly connected with the template connecting groove 60 and a second side supporting plate 62 or a third side supporting plate 64 through a template fastening bolt 61.
The section of the template connecting groove 60 is square. The form fastening bolts 61 comprise high-strength screws and bolts having a diameter of 30 mm.
The inter-column support 50 includes a vertical support rod 51, an inter-pier pressing body 52, a lateral support plate 53 and a rotary support rod 54, and both ends of the rotary support rod 54 are respectively connected to the vertical support rod 51 and the lateral support plate 53 through a support rod connecting hinge 55. Wherein, the pier pressing body 52 and the template control body 58 both adopt hydraulic jacks; the template retainer 58 is welded to the first side plate 59.
The supporting side pressing plates 53 are formed by rolling steel plates with the thickness of 2 mm; the rotary stay bar 54 is made of a steel pipe with the diameter of 60 mm; the stay bar attachment hinge 55 comprises a high strength screw and bolt of 60mm diameter.
The support platform 56 is rolled from a steel plate with a thickness of 10 mm.
The vertical supporting plate 57 is formed by rolling a steel plate with the thickness of 10 mm.
The temperature control water pipe 65 is a PVC pipe with the diameter of 60 mm.
The perfusion strut 66 is formed by rolling a steel pipe with the diameter of 150 mm.
The pouring top plate 67 is formed by rolling a steel plate with the thickness of 3mm, and the upper surface is provided with a roller channel 83 and a pouring channel 92 which are connected with the shifting roller 82. The shifting roller 82 adopts a 3-inch universal ball wheel; the roller channel 83 and the pouring channel 92 are rectangular in cross section.
The perfusion control body 68 adopts a hydraulic jack with the stroke of 50 cm.
The perfusion guide tube 69 is a steel tube with the diameter of 100mm, the top end of the perfusion guide tube passes through a reserved hole on the integral connecting plate 84, and the bottom end of the perfusion guide tube is connected with the flexible sling 71 through a pipeline sleeve 85 and a tube bottom connecting plate 86. The integral connecting plate 84 is formed by rolling a steel plate with the thickness of 2mm, the pipeline sleeve 85 is formed by rolling a steel pipe with the wall thickness of 2mm, the pipe bottom connecting plate 86 is formed by rolling a steel plate with the thickness of 2mm, and the flexible sling 71 is connected with external coiling and pulling equipment by a rope with the diameter of 30 mm.
The vertical control body 70 adopts a hydraulic jack with the stroke of 30cm, the top end of the hydraulic jack is vertically welded with the integral connecting plate 84, and the bottom end of the hydraulic jack is provided with the shifting roller 82.
The splicing unit 74 has a width of 1m and a length of 2m, and includes a unit bottom plate 75, a unit top plate 76, and unit pillars 77, and unit reinforcing bolts 78 and unit risers 79 are provided between adjacent unit pillars 77.
The unit vertical plates 79 are formed by rolling steel plates with the thickness of 10mm, the height of the unit vertical plates is 20cm, the unit vertical plates are arranged in the length direction of the splicing units 74 in a through-length mode and are connected with the unit supporting columns 77 sequentially through the unit reinforcing bolts 78 and the vertical pipe sleeves 87.
The unit bracing 77 adopts a pipe hoop with the diameter of 100; the unit reinforcing bolt 78 is composed of a high-strength screw rod with the diameter of 60mm and a bolt; the standpipe sleeve 87 uses a pipe clamp with a wall thickness of 2 mm.
The unit bottom plate 75 and the unit top plate 76 are both formed by rolling steel plates with the thickness of 2mm, inter-plate bolt holes 90 for the inter-plate connecting bolts 33 to penetrate through are reserved in the unit bottom plate 75 and the unit top plate 76, the inter-plate connecting bolts 33 are formed by high-strength screws and bolts with the diameter of 60mm, and the cross sections of the inter-plate bolt holes 90 are circular.
The bridge pier 81 is formed by casting reinforced concrete material in situ, and the concrete strength grade is C50.
The riser connecting ribs 88 are steel pipes with a diameter of 30 mm.
The vibrating rod 89 is an insertion type concrete vibrator.
Claims (3)
1. The construction method of the one-step pouring molding system of the double-column type vase pier steel template is characterized in that: the method comprises the following construction steps:
1) construction preparation: pouring concrete on the pier bottom bearing platform (2) to prepare materials and devices required by construction;
2) roughening the top surface of the pier bottom cushion cap: arranging chiseling bracing columns (3) and column top beams (4) on foundation soil bodies (1) on two sides of a pier bottom bearing platform (2), and firmly connecting column bottom bracing plates (6) at the bottoms of the chiseling bracing columns (3) with the foundation soil bodies (1) through bracing plate anchor bars (5); the pipeline connecting body (7) is firmly connected with a guide sliding beam (9) at the lower part of the column top beam (4), a horizontal recovery pipe (10) and a horizontal water supply pipe (11) are arranged at the lower part of the pipeline connecting body (7), the horizontal recovery pipe (10) is communicated with a vertical recovery pipe (13), and the horizontal water supply pipe (11) is communicated with a vertical water supply pipe (12); firstly, arranging a closed curtain cloth (14) on the peripheries of a column top cross beam (4) and a chiseling support column (3), then supplying water to a water supply horizontal pipe (11) through a water supply longitudinal pipe (12), chiseling the upper surface of a pier bottom cushion cap (2) through a water jet nozzle (15) at the lower part of the water supply horizontal pipe (11), synchronously recovering chiseling sundries through a recovery pipe opening (8) at the lower part of a recovery horizontal pipe (10), the recovery horizontal pipe (10) and the recovery longitudinal pipe (13), and controlling a pipeline connector (7) through a sliding cable (16) so as to control the positions of the water supply horizontal pipe (11) and the recovery horizontal pipe (10); along the sliding direction, the horizontal water supply pipe (11) is arranged in front of the horizontal recovery pipe (10);
3) and (3) setting up a temporary fixing support: firstly, arranging a supporting sand box (17) in a foundation soil body (1), filling a sand box filling body (18) in the supporting sand box (17), and then arranging a support bottom plate (19) on the upper surface of the supporting sand box (17); the bottom ends of the bottom struts (20) are inserted into a frame bottom sleeve (21) on the upper surface of a frame bottom plate (19), and the adjacent bottom struts (20) are connected through strut sleeves (22) and bottom fastening bolts (23); arranging a support platform plate (24) at the top end of the bottom support pillar (20), arranging a reaction vertical plate (25) and a support base plate (26) on the upper surface of the support platform plate (24), and arranging a support tie bar (27) between the support platform plate (24) and a poured pier bottom bearing platform (2); placing the splicing unit (74) spliced into a whole on a rest bedplate (28) on a support platform plate (24), arranging a lifting bottom plate (30) between a first lifting body (29) on the support platform plate (24) and the mounted splicing unit (74), jacking the rest bedplate (28) and the splicing unit (74) to a set height through the first lifting body (29), then jacking the splicing unit (74) and the rest bedplate (28) to the set height through a second lifting body (32) between the rest bedplate (28) and the support platform plate (24), pushing the splicing unit (74) to a support cushion plate (26) below the mounted splicing unit (74) through a transverse control body (31) on one side of the splicing unit (74), enabling the first lifting body (29) to fall down, and repeating the jacking construction of the splicing unit (74); the splicing units (74) which are connected up and down are firmly connected through the inter-plate connecting bolt (33); a bracket guardrail (34) is arranged on the upper surface of a bracket platform plate (24) of a bracket platform (56) at the top of the splicing unit (74), and a protective hanging net (35) is arranged along the periphery of the bracket platform (56); according to the bearing requirement, injecting slurry or mortar into the supporting sand box (17) through a sand box grouting pipe (36) on the bracket bottom plate (19) to solidify a sand box filling body (18); step 3), the cross section of the supporting sand box (17) is in an isosceles trapezoid shape, the supporting sand box is made of steel plates or reinforced concrete materials, and the outer side wall of the supporting sand box is provided with a sand box connecting hole (72); pebbles or broken stones or gravels are adopted as the sand box filling body (18); the support bottom plate (19) is formed by rolling a steel plate, the upper surface of the support bottom plate is provided with a support bottom sleeve (21), and a sand box grouting pipe (36) communicated with a sand box filling body (18) is arranged on the support bottom plate (19); one end of the support lacing wire (27) is anchored into the pier bottom bearing platform (2) through a built-in anchor plate (73), and the other end of the support lacing wire passes through the support platform plate (24) and then is fastened through an anchorage device or a bolt; the splicing unit (74) comprises a unit bottom plate (75), a unit top plate (76) and unit supporting columns (77), the unit supporting columns (77) are arranged between the unit bottom plate (75) and the unit top plate (76), and unit reinforcing bolts (78) and unit vertical plates (79) are arranged between the adjacent unit supporting columns (77); the unit vertical plates (79) are formed by rolling steel plates and are arranged in a through manner along the length direction of the splicing units (74), the unit vertical plates (79) are connected with the unit support columns (77) sequentially through unit reinforcing bolts (78) and vertical pipe sleeves (87), the vertical pipe sleeves (87) are sleeved on the outer sides of the unit support columns (77), the unit bottom plates (75) are formed by rolling steel plates, and inter-plate bolt holes (90) for the inter-plate connecting bolts (33) to penetrate through are reserved in the unit bottom plates; the bottom fastening bolt (23) comprises a screw rod and a bolt, two ends of the bottom fastening bolt are vertically welded and connected with the support column sleeve (22), the fastening directions of the screw rods on two sides of the bolt are opposite, and the support column sleeve (22) is sleeved on the outer side of the bottom support column (20); the transverse control body (31) adopts a hydraulic jack, two sides of the transverse control body are respectively welded with a pushing pressing plate (80) and a reaction vertical plate (25), the reaction vertical plate (25) is fixed on a support platform plate (24), and the pushing pressing plate (80) is in contact with the splicing unit (74);
4) binding a pier body reinforcement cage: the position control sliding groove (39) and the pier stud vertical rib (40) are firmly connected through the vertical rib hoop (38), the vertical distance of the sliding support plate (41) on the position control sliding groove (39) is adjusted firstly, and then the sliding support plate (41) and the position control sliding groove (39) are firmly connected through the sliding plate fastening bolt (42); a vertical plate connecting rib (88) is arranged between the vertical rib hoop (38) and the position control chute (39); firstly, placing pier column stirrups (44) in stirrup limiting grooves (45) on the upper surface of a sliding supporting plate (41), then firmly connecting the pier column stirrups (44) with pier column vertical reinforcements (40), and performing binding construction on a pier body reinforcement cage (46); step 4), the position control sliding groove (39) is formed by rolling a steel plate, a sliding channel with a T-shaped cross section is arranged in the direction parallel to the height direction of the pier body steel reinforcement cage (46), and the position control sliding groove (39) is connected with a sliding supporting plate (41); the sliding support plate (41) is formed by rolling a steel plate, a sliding plate fastening bolt (42) is arranged on the side departing from the pier body steel reinforcement cage (46), and a stirrup limiting groove (45) is arranged on the upper surface of the side facing the pier body steel reinforcement cage (46);
5) erecting a pier body template: the pier body template (47) comprises a straight line side template (48) and a curved line side template (49), and a plane section and a curved section which are respectively arranged on the bridge pier column (81); inserting the integrally spliced inter-column support body (50) into the gap of the double column through a support vertical rod (51), and firmly connecting the support side pressure plate (53) with the inner side wall of the double column through an inter-pier jacking body (52), so that the two ends of the rotary support rod (54) are firmly connected with the support side pressure plate (53) and the support vertical rod (51) through support rod connecting hinges (55); a vertical supporting plate (57) is arranged on a supporting platform plate (24) of a supporting platform (56), a template control body (58) and a first side supporting plate (59) are arranged on the vertical supporting plate (57) and a supporting vertical rod (51) facing to a pier body steel bar cage (46), and the first side supporting plate (59) is connected with a linear side mold (48) through a template connecting groove (60) and a template fastening bolt (61); a second supporting bolt (37) is arranged between a supporting transverse plate (43) and a second side supporting plate (62) at the top of the splicing unit (74), a first supporting bolt (63) is arranged between a supporting vertical rod (51) and a third side supporting plate (64), and the second side supporting plate (62) and the third side supporting plate (64) are respectively and firmly connected with a template connecting groove (60) at the outer side of the curved side die (49); step 5), the inter-column support body (50) comprises a support vertical rod (51), an inter-pier jacking body (52), a support side pressure plate (53) and a rotary support rod (54), and two ends of the rotary support rod (54) are respectively connected with the support vertical rod (51) and the support side pressure plate (53) through support rod connecting hinges (55); the pier pressing body (52) adopts a hydraulic jack; the template control body (58) is connected with the first side supporting plate (59) in a welding mode by adopting a hydraulic jack; the straight-line side die (48) is formed by rolling a steel plate, a template connecting groove (60) is formed in the side, away from the pier body steel reinforcement cage (46), and the template connecting groove (60) is firmly connected with the first side supporting plate (59) through a template fastening bolt (61); the first supporting bolt (63) and the second supporting bolt (37) comprise a screw rod and a bolt, the fastening directions of the screw rods on the two sides of the bolt are opposite, and the supporting vertical rod (51), the second side supporting plate (62) and the third side supporting plate (64) which are connected with each other are connected through a supporting bolt end hinge (91); the curved side die (49) is rolled into a set curved surface shape by adopting a steel plate, a template connecting groove (60) is arranged on the side departing from the pier body steel reinforcement cage (46), and the template connecting groove (60) is firmly connected with the second side supporting plate (62) or the third side supporting plate (64) through a template fastening bolt (61);
6) pouring concrete: a temperature control water pipe (65) is arranged on the periphery of the pier body template (47) along the annular direction, a perfusion support column (66) is arranged on the upper surface of the support transverse plate (43), a perfusion top plate (67) and a perfusion control body (68) are arranged on the top surface of the perfusion support column (66), and the perfusion control body (68) is positioned on the perfusion top plate (67); pour into the concrete through outside pouring equipment in to pouring into stand pipe (69), form bridge pier stud (81) to through pouring into horizontal position that accuse body (68) control poured into stand pipe (69), through vertical accuse body (70) control flexible hoist cable (71), vibrate excellent (89) and pour into the distance that the top surface was poured into with the concrete of stand pipe (69).
2. The construction method of the one-time pouring molding system of the double-column type vase steel pier template according to claim 1, which is characterized in that: step 2), the chiseling support columns (3) are formed by rolling profile steel and are uniformly distributed at intervals along the pier bottom bearing platform (2) in the longitudinal direction, a column top cross beam (4) is arranged at the top ends of the chiseling support columns (3), and 2-3 guide sliding beams (9) which are parallel to the pier bottom bearing platform (2) in the longitudinal direction are arranged on the lower surfaces of the column top cross beams (4); the guide sliding beam (9) is formed by rolling a steel plate, and the lower surface of the guide sliding beam is provided with a channel which has a T-shaped cross section and is connected with the pipeline connecting body (7) in a sliding manner; the recovery longitudinal pipes (13) are communicated with the recovery transverse pipes (10), the recovery longitudinal pipes (13) and the recovery transverse pipes (10) are made of rubber hoses and steel pipe materials respectively, and 2-3 recovery pipe openings (8) are formed in the recovery transverse pipes (10) in the direction facing the pier bottom cushion caps (2); the water supply longitudinal pipe (12) is communicated with the water supply transverse pipe (11), the water supply longitudinal pipe (12) and the water supply transverse pipe (11) are respectively made of rubber hoses and steel pipe materials, and 2-3 water jet nozzles (15) are arranged on the side, facing the pier bottom cushion cap (2), of the recovery transverse pipe (10); the pipeline connecting body (7) is formed by rolling a steel plate, has a T-shaped cross section and is connected with the sliding inhaul cable (16) in a welding or sticking way; the closed curtain cloth (14) is formed by cutting a geomembrane or a rubber sheet and is connected with the connected chiseling support column (3) and the column top cross beam (4) in a sticking way.
3. The construction method of the one-time pouring molding system of the double-column type vase steel pier template according to claim 1, which is characterized in that: step 6), the pouring top plate (67) is formed by rolling a steel plate, and a roller channel (83) and a pouring channel (92) connected with the shifting roller (82) are arranged on the upper surface of the pouring top plate; the perfusion guide pipe (69) is a steel pipe, the top end of the perfusion guide pipe passes through a reserved hole on the integral connecting plate (84), and the bottom end of the perfusion guide pipe is connected with the flexible sling (71) through a pipeline sleeve (85) and a pipe bottom connecting plate (86); the integral connecting plate (84) is connected with the perfusion control body (68), the vertical control body (70) adopts a hydraulic jack, the top end of the vertical control body is vertically welded with the integral connecting plate (84), and the bottom end of the vertical control body is provided with a shifting roller (82); the flexible sling (71) adopts a rope and is connected with external rolling and pulling equipment; the bottom of the tube bottom connecting plate (86) is provided with a vibrating rod (89).
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| CN113863360A (en) * | 2021-10-27 | 2021-12-31 | 中铁三局集团建筑安装工程有限公司 | Intensive equipment foundation group sizing formwork system and construction method |
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| CN101845797A (en) * | 2010-05-18 | 2010-09-29 | 武汉一冶交通工程有限责任公司 | One-step molding method of vase-shaped columnar pier for urban viaduct bridges |
| CN202466431U (en) * | 2012-03-22 | 2012-10-03 | 深圳市兴班建筑工程有限公司 | Bridge specific model vase pier construction device |
| WO2014193022A1 (en) * | 2013-05-30 | 2014-12-04 | Kim Tae Hee | Curved y-shaped bridge support comprising pc steel wire |
| CN105113388A (en) * | 2015-09-18 | 2015-12-02 | 宁波交通工程建设集团有限公司 | Formwork and bracket combining structure of vase pier of viaduct and application method |
| CN106677069A (en) * | 2016-12-28 | 2017-05-17 | 杭州江润科技有限公司 | Construction method for overall formwork one-time forming structure of pier |
| CN206553938U (en) * | 2016-12-28 | 2017-10-13 | 杭州市交通规划设计研究院 | Bridge pier integral formwork support one-shot forming structure |
| CN110359595A (en) * | 2019-07-23 | 2019-10-22 | 华神建设集团有限公司 | Prefabricated component splices masonry shearwalls and construction method |
| CN211256951U (en) * | 2019-07-30 | 2020-08-14 | 杭州江润科技有限公司 | Hoisting device for reinforcement cage of special-shaped underground diaphragm wall |
| CN110593558A (en) * | 2019-09-26 | 2019-12-20 | 常州市市政建设工程有限公司 | Large-scale steel mold without pull rod for vase-type pier stud and construction process of large-scale steel mold |
| CN110983987A (en) * | 2019-12-24 | 2020-04-10 | 德州市公路工程总公司 | Construction method of steel-concrete combined beam |
| CN211949593U (en) * | 2020-01-20 | 2020-11-17 | 四川路航建设工程有限责任公司 | Bridge pier column template system |
| CN111851309A (en) * | 2020-08-12 | 2020-10-30 | 安徽省公路桥梁工程有限公司 | Cast-in-place box girder construction method |
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