CN107023163B - Glass fiber reinforced plastic cylindrical template system and construction method thereof - Google Patents
Glass fiber reinforced plastic cylindrical template system and construction method thereof Download PDFInfo
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- CN107023163B CN107023163B CN201710259189.XA CN201710259189A CN107023163B CN 107023163 B CN107023163 B CN 107023163B CN 201710259189 A CN201710259189 A CN 201710259189A CN 107023163 B CN107023163 B CN 107023163B
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- 239000011152 fibreglass Substances 0.000 title claims abstract description 89
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 65
- 238000009415 formwork Methods 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 239000011521 glass Substances 0.000 claims description 11
- 230000008719 thickening Effects 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 239000002002 slurry Substances 0.000 abstract description 10
- 238000004880 explosion Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
- E04G13/021—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor for circular columns
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to a glass fiber reinforced plastic cylindrical template system and a construction method thereof, and belongs to the technical field of construction templates. The invention provides a glass fiber reinforced plastic cylindrical template system, which comprises two semicircular template units spliced together, a connecting lug plate, an annular hoop and a T-shaped sealing strip. The connecting lug plates are arranged on two sides of the splicing seam of the semicircular template unit and are fixed through connecting bolts; the opening end of the annular hoop is provided with an adjusting bolt which can fasten the semicircular template unit into a whole; the T-shaped sealing strip is arranged at the splice joint and comprises an embedded section and a splice section. The glass fiber reinforced plastic cylindrical formwork system provided by the invention can effectively prevent slurry leakage at the splice joint, has better stability and better mechanical property, and can effectively prevent the phenomena of formwork deformation, formwork explosion and the like in the concrete pouring process. Correspondingly, the invention also provides a construction method of the glass fiber reinforced plastic cylindrical template system.
Description
Technical Field
The invention relates to a glass fiber reinforced plastic cylindrical template system and a construction method thereof, and belongs to the technical field of construction templates.
Background
With the objective demands of green buildings, the environmental protection consciousness of people is continuously improved, the natural idea of returning to the original is gradually deepened, people gradually develop the tie of the naive expression form of the bare concrete, and the bare concrete has the naive, natural and stable appearance and charm, and is inherently thick and elegant which cannot be imitated and comparable with some modern building materials.
The columns of main entrances and exits of some important buildings are poured by bare concrete, so that the natural aesthetic feeling and the grade of prime face facing upwards can be reflected, and the plain face facing upwards caters to the aesthetic feeling of returning to the original and returning to the true of people. However, the traditional cylindrical formwork system is a steel formwork system and a wood formwork system, so that the number of joints is large, the working procedure is complex, time is wasted, the manufacturing cost is high, the movement is inconvenient due to the large dead weight, and the perpendicularity and the smoothness of the concrete cylinder after the casting are not satisfactory.
In recent years, the glass fiber reinforced plastic cylindrical template is widely applied in the building industry with high development speed due to the advantages of the material performance, the high efficiency and simplicity in installation and construction, the beautiful appearance of the final product and the like. The glass fiber reinforced plastic cylindrical templates are formed by splicing two semicircular templates, however, in the concrete pouring process, larger lateral pressure is often generated, concrete slurry overflows from the spliced seams of the templates, the attractiveness of the cylinder is affected, and the deformation and even die explosion of the templates can occur in severe cases.
Disclosure of Invention
Aiming at the problems of concrete slurry overflow, template deformation, even die explosion and the like of a glass fiber reinforced plastic cylindrical template in the prior art, the invention provides a glass fiber reinforced plastic cylindrical template system, which is characterized in that two semicircular template units are tightly spliced together through a connecting lug plate and an annular hoop, so that the glass fiber reinforced plastic cylindrical template system can bear larger lateral pressure, the phenomena of template deformation, die explosion and the like in the concrete pouring process can be effectively prevented, and in addition, the slurry leakage at a splicing joint can be effectively prevented by arranging a T-shaped sealing strip with certain elasticity at the splicing joint. Correspondingly, the invention also provides a construction method of the glass fiber reinforced plastic cylindrical template system, which has the advantages of simple working procedure, convenient splicing and low cost, and the glass fiber reinforced plastic cylindrical template system has higher overall stability and can be used for pouring the bare concrete cylinder with higher requirements on aesthetic property.
In order to solve the technical problems, the invention comprises the following technical scheme:
the glass fiber reinforced plastic cylindrical template system comprises two semicircular template units spliced together, and further comprises:
the connecting lug plate comprises a first lug plate and a second lug plate which are arranged on two sides of a splicing seam of the semicircular template unit and are arranged in pairs, bolt holes are formed in the first lug plate and the second lug plate and are fixed through connecting bolts, positioning holes for accommodating positioning pins are further formed in the first lug plate and the second lug plate, and the connecting lug plates are arranged on the outer sides of the glass fiber reinforced plastic cylindrical templates at intervals;
the annular hoop is arranged between two adjacent connecting lug plates, and an opening end of the annular hoop is provided with an adjusting bolt;
t type sealing strip, T type sealing strip includes embedding section and concatenation section be provided with the longitudinal groove who link up from top to bottom on the concatenation face of semi-circular template unit of one side of concatenation seam, the embedding section closely inlay in the longitudinal groove, the concatenation section sets up concatenation seam department.
Further, the first and second ear plates are made of steel plates with L-shaped cross sections, one sides of the L-shaped steel plates of the first and second ear plates are fixed on the semicircular template units, and the other sides of the L-shaped steel plates of the first and second ear plates are fixed together through the connecting bolts.
Preferably, a glass fiber reinforced plastic strip is arranged between the connecting lug plate and the semicircular template unit, the glass fiber reinforced plastic strip is adhered to the semicircular template unit through strong glue, and the glass fiber reinforced plastic strip is riveted or bolted with the first lug plate and the second lug plate.
Preferably, triangular stiffening ribs are arranged on the first ear plate and the second ear plate.
Preferably, the positions of the adjusting bolts of the two adjacent annular hoops are staggered, and the positions of the adjusting bolts and the positions of the splicing seams form an included angle of 75-105 degrees.
Preferably, the annular anchor ear comprises a flexible steel belt with U-shaped grooves at two ends, cushion blocks embedded in the U-shaped grooves, and adjusting bolts penetrating through the two cushion blocks and the U-shaped grooves.
Preferably, the outer side of the spliced segment of the T-shaped sealing strip is flush with the outer surface of the glass fiber reinforced plastic cylindrical template, the top of the inner side of the spliced segment of the T-shaped sealing strip is flush with the inner surface of the glass fiber reinforced plastic cylindrical template, and the bottom of the inner side of the spliced segment protrudes out of the inner surface of the glass fiber reinforced plastic cylindrical template.
Further, glass steel cylinder template bottom sets up on the screed-coat, glass steel cylinder template bottom outside sets up the thickening layer, follows glass steel cylinder template a week's thickening layer bottom is provided with the annular breach that the level link up, breach department sets up horizontal sealing strip, horizontal sealing strip passes through annular staple bolt to be fixed in the annular breach.
Preferably, the material of the T-shaped sealing strip and the horizontal sealing strip is silica gel or rubber.
Correspondingly, the invention also provides a construction method of the glass fiber reinforced plastic cylindrical template system, which is characterized by comprising the following steps:
s1, horizontally placing a semicircular template unit, coating glue on a T-shaped sealing strip, and embedding an embedded section of the T-shaped sealing strip into a longitudinal groove on a splicing surface of the semicircular template unit;
s2, splicing the two semicircular template units, inserting a positioning pin into a positioning hole of the connecting lug plate for primary fixing, checking splicing accuracy and template perpendicularity, and inserting a connecting bolt into a bolt hole for secondary fixing when the splicing meets the requirements;
s3, an annular hoop is additionally arranged between the two connecting lug plates, and an adjusting bolt is screwed to enable the annular hoop to be tightly locked on the outer side of the glass fiber reinforced plastic cylindrical template;
s4, hoisting the glass fiber reinforced plastic cylindrical template to a leveling layer at the position of a cylinder to be poured, embedding a horizontal sealing strip at an annular gap at the bottom of the glass fiber reinforced plastic cylindrical template after the plane position and the perpendicularity meet the requirements, and tightly locking the horizontal sealing strip in the annular gap by using an annular anchor ear.
Compared with the prior art, the invention has the following advantages and positive effects due to the adoption of the technical scheme:
(1) According to the glass fiber reinforced plastic cylindrical formwork system provided by the invention, the two semicircular formwork units are tightly spliced together through the connecting lug plates and the annular anchor ear, so that the glass fiber reinforced plastic cylindrical formwork system can bear larger lateral pressure, and the phenomena of formwork deformation, formwork explosion and the like in the concrete pouring process can be effectively prevented;
(2) According to the glass fiber reinforced plastic cylindrical template system, the T-shaped sealing strip is embedded into the longitudinal groove of the semicircular template unit and is tightly pressed by the connecting lug plates and the annular anchor ear, so that the T-shaped sealing strip can be tightly attached to the splicing surface of the semicircular template unit, slurry leakage at the splicing joint is effectively prevented, and the poured cylinder is guaranteed to have a smooth surface;
(3) According to the glass fiber reinforced plastic cylindrical formwork system provided by the invention, the annular gap is formed at the joint of the bottom of the glass fiber reinforced plastic cylindrical formwork and the leveling layer, the horizontal sealing strip is arranged in the gap, and the annular hoop is arranged outside the sealing strip, so that the horizontal sealing strip is deformed to a certain extent under the extrusion of the annular hoop, the annular gap is tightly sealed, and concrete slurry can be effectively prevented from overflowing from the bottom of the glass fiber reinforced plastic cylindrical formwork;
(4) The construction method of the glass fiber reinforced plastic cylindrical template system provided by the invention has the advantages of simple working procedures, convenience in splicing and low cost, and the glass fiber reinforced plastic cylindrical template system has higher overall stability, and can be used for pouring the bare concrete cylinder with higher requirements on aesthetic property.
Drawings
FIG. 1 is a schematic structural diagram of a cylindrical glass fiber reinforced plastic template system according to an embodiment of the present invention;
FIG. 2 is a top view of a cylindrical template system of glass fiber reinforced plastic according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a connection ear plate according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an annular hoop according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a T-shaped sealing strip according to an embodiment of the present invention;
FIG. 6 is a schematic view of a horizontal sealing strip according to an embodiment of the present invention;
fig. 7 is a flowchart of a construction method of a glass fiber reinforced plastic cylindrical formwork system according to another embodiment of the present invention.
The labels in the figures are as follows:
a semicircular template unit 100; a longitudinal groove 110; a connection ear plate 200; an ear plate one 201; the second ear plate 202; bolt holes 210; a connecting bolt 211; stiffening ribs 220; a positioning hole 230; glass fiber reinforced plastic batten 240; annular hoop 300; a flexible steel strip 310; a pad 320; an adjusting bolt 330; a T-shaped sealing strip 400; an embedded segment 410; splicing sections 420; horizontal seal 500.
Detailed Description
The glass fiber reinforced plastic cylindrical template system and the construction method thereof provided by the invention are further described in detail below with reference to the accompanying drawings and specific embodiments. Advantages and features of the invention will become more apparent in conjunction with the following description and claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a glass fiber reinforced plastic cylindrical template system provided in this embodiment, and fig. 2 is a top view of the glass fiber reinforced plastic cylindrical template system provided in this embodiment. The gist of the present invention will be further described with reference to fig. 1 and 2.
The glass fiber reinforced plastic cylindrical template system comprises two semicircular template units 100 which are spliced together, and further comprises a connecting lug plate 200, an annular hoop 300 and a T-shaped sealing strip 400. The connecting lug plates 200 comprise a first lug plate 201 and a second lug plate 202 which are arranged at two sides of a splicing seam of the semicircular template unit 100 and are arranged in pairs, bolt holes are formed in the first lug plate 201 and the second lug plate 202 and are fixed through connecting bolts 211, and a plurality of connecting lug plates 200 are arranged at the outer side of the glass fiber reinforced plastic cylindrical template at intervals up and down; the annular hoop 300 is arranged between two adjacent connecting lug plates 200, an opening end of the annular hoop 300 is provided with an adjusting bolt, and the annular hoop 300 is used for splicing and combining the two semicircular template units 100 into an integral glass fiber reinforced plastic cylindrical template; the T-shaped sealing strip 400 includes an embedded section 410 and a splicing section 420, wherein a longitudinal groove 110 penetrating up and down is provided on the splicing surface of the template unit 100 at one side of the splicing seam, the embedded section 410 is tightly embedded in the longitudinal groove 110, and the splicing section 420 is provided at the splicing seam of the two semicircular template units 100.
The glass fiber reinforced plastic cylindrical template system provided by the invention has the following advantages or beneficial effects: (1) The two semicircular template units 100 are tightly spliced together through the connecting lug plates 200 and the annular anchor ear 300, so that a glass fiber reinforced plastic cylindrical template system can bear larger lateral pressure, and the phenomena of template deformation, template explosion and the like in the concrete pouring process can be effectively prevented; (2) The T-shaped sealing strip 400 is embedded into the longitudinal groove 110 and then tightly pressed by the connecting lug plate 200 and the annular hoop 300, so that the T-shaped sealing strip 400 can be tightly attached to the splicing surface of the semicircular template unit 100, slurry leakage at the splicing seam is effectively prevented, and the poured cylinder is ensured to have a smooth surface.
Referring to fig. 3, fig. 3 shows a schematic structural view of the connection ear plate 200, and the connection ear plate 200 is further described with reference to fig. 1 to 3. The first and second connection lugs 200 and 200 are a pair of first and second lugs 201 and 202 made of L-shaped steel plates, wherein the first and second lugs 201 and 202 can be fixed by connecting bolts, and bolt holes 210 are formed in the first connection lugs 200. One side of the L-shaped steel plates of the first and second ear plates 201 and 202 is fixed to the semicircular template unit 100, and the other side is fixed together by a connecting bolt 211.
In order to increase the overall stability of the connection ear plate 200, the first ear plate 201 and the second ear plate 202 are provided with stiffening ribs 220, the stiffening ribs 220 are right-angled triangular steel plates, and two right-angled edges are welded on the L-shaped steel plates.
In order to ensure the splicing accuracy of the semicircular template unit 100, the primary splicing and fixing are required, then the checking and the adjusting are performed, and after the requirements are met, the secondary fixing is performed. Accordingly, it is preferable that the connection ear plate 200 is provided with a positioning hole 230 accommodating a positioning pin, and preliminary splicing of the semicircular template unit 100 is achieved by the positioning pin and the positioning hole 230.
The connecting lug 200 and the semicircular template unit 100 are preferably fixedly connected by riveting or bolts due to material difference, however, the riveting or the bolts are used for punching holes at the connecting positions of the semicircular template unit 100, so that the positions become stress weak points, and the overall stability of the glass fiber reinforced plastic cylindrical template is not facilitated. Therefore, in order to ensure stable connection between the connection lug 200 and the semicircular template unit 100, it is preferable to provide a glass fiber reinforced plastic strip 240 between the connection lug 200 and the semicircular template unit 100, adhere the glass fiber reinforced plastic strip 240 to the semicircular template unit 100 by using a strong adhesive, rivet the glass fiber reinforced plastic strip 240 and the connection lug 200 together, or provide a bolt hole with internal threads on the glass fiber reinforced plastic strip 240, and splice the glass fiber reinforced plastic strip 240 and the connection lug 200 together by using a bolt. Thus, the provision of the glass reinforced plastic strip 240 avoids the punching of the semicircular template unit 100, and at the same time, increases the thickness of the glass reinforced plastic cylindrical template at the location, thereby effectively protecting the stress concentration location.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an annular hoop 300 according to the present embodiment, and the annular hoop 300 is further described below with reference to fig. 1 to 4. The annular hoop 300 comprises a flexible steel belt 310 with U-shaped grooves at two ends, cushion blocks 320 embedded in the U-shaped grooves, and an adjusting bolt 330 penetrating through the two cushion blocks 320 and the U-shaped grooves. The annular hoop 300 is arranged on the outer side of the glass cylindrical steel template, the semicircular template units 100 can be tightly spliced together through the adjusting bolts 330, and in the concrete pouring process, partial lateral pressure generated by concrete is born by the annular hoop 300, so that the template can be effectively prevented from deforming and bursting.
Because the flexible steel strips 310 of the annular hoops 300 form notches at the positions of the adjusting bolts 330, which are weak points of the glass fiber reinforced plastic cylindrical templates for bearing tensile force, if all the weak points are on the same straight line, the probability of die explosion in the concrete pouring process is increased, so that the positions of the adjusting bolts 330 projected on a horizontal plane of two adjacent annular hoops 300 are arranged in a staggered manner, for example, the adjusting bolts 330 of the two adjacent annular hoops 300 are arranged in two opposite directions of the same diameter of the glass fiber reinforced plastic cylindrical templates. The joint of the semicircular template units 100 is also a weak stress surface, so in a preferred embodiment, the position of the adjusting bolt 330 of the annular hoop 300 and the joint of the two semicircular template units 100 are staggered, and preferably form an included angle of 75-105 degrees with the connecting line of the centers of the glass fiber reinforced plastic cylindrical templates.
Preferably, the T-shaped sealing strip 400 is made of a certain elastic material, such as silica gel or rubber, and when the splice joint is slightly deformed, the T-shaped sealing strip 400 can still effectively seal the splice joint by virtue of the rebound property thereof, so as to prevent slurry leakage at the splice joint.
It should be noted that, under the action of the high side pressure of concrete, the T-shaped sealing strip 400 may deform to a certain extent, so that the inner surface of the splicing section of the T-shaped sealing strip 400 is retracted into the splice seam. Therefore, the T-shaped sealing strip 400 preferably needs to reserve a corresponding deformation amount. When the concrete is poured once, the lateral pressure of the concrete is changed linearly along with the depth of the glass fiber reinforced plastic cylindrical template, and is gradually increased, so that the preferable implementation mode is that the splicing section 420 of the T-shaped sealing strip is narrow at the top and wide at the bottom, specifically, the outer side of the splicing section 420 of the T-shaped sealing strip 400 is flush with the outer surface of the glass fiber reinforced plastic cylindrical template, the top of the inner side of the splicing section 420 of the T-shaped sealing strip 400 is flush with the inner surface of the glass fiber reinforced plastic cylindrical template, and the bottom of the splicing section 420 of the T-shaped sealing strip is protruded out of the inner surface of the glass fiber reinforced plastic cylindrical template. Fig. 5 shows a schematic structural diagram of a T-shaped sealing strip 400, where the splicing section 420 of the T-shaped sealing strip 400 has a trapezoid shape with a top width d and a bottom width d+m, where d is also the thickness of the glass fiber reinforced plastic cylindrical template, and m is the deformation reserved at the bottom of the T-shaped sealing strip 400.
It should be further noted that the joint between the glass fiber reinforced plastic cylindrical form and the bottom foundation is also a frequent part of slurry leakage, so that further treatment is required. Referring to fig. 6, fig. 6 shows a schematic structural diagram of the horizontal sealing strip 500, and the horizontal sealing strip 500 is further described below with reference to fig. 1 to 6. The glass steel cylinder template bottom sets up on the screed 510, and glass steel cylinder template bottom outside sets up thickening layer 520, is provided with the annular breach that the level is link up along the thickening layer 520 bottom of glass steel cylinder template a week, sets up horizontal sealing strip 500 in annular breach department, is provided with annular staple bolt 300 in the horizontal sealing strip 500 outside. For example, the thickening layer 520 is a glass steel plate strip adhered to the outer side of the semicircular template unit 100, a circular gap is reserved between the glass steel plate strip and the leveling layer 510, the horizontal sealing strip 500 is made of silica gel or rubber, and is deformed to a certain extent under the extrusion of the annular anchor ear 300, so that the circular gap is tightly sealed, and concrete slurry can be effectively prevented from overflowing from the bottom of the glass steel cylindrical template.
Referring to fig. 7, fig. 7 is a flowchart of a construction method of a glass fiber reinforced plastic cylindrical formwork system provided by the present invention, and the construction method of the glass fiber reinforced plastic cylindrical formwork system is further described below with reference to fig. 1 to 7. The construction method of the glass fiber reinforced plastic cylindrical template system comprises the following steps:
s1, placing the semicircular template unit 100 horizontally, coating glue on the T-shaped sealing strip 400, and embedding the embedded section 410 of the T-shaped sealing strip 400 into the longitudinal groove 110 on the splicing surface of the semicircular template unit 100. The semicircular form units 100 may be laid flat on a sleeper with circular arc grooves to prevent it from rolling. The T-shaped sealing strip 400 may employ a high elastic silica gel strip, and the length of the silica gel strip should be the same as the height of the semicircular template unit 100, and a joint must not be provided within the length.
S2, splicing the two semicircular template units 100, inserting positioning pins into positioning holes 230 of the connecting lug plates 200 for primary fixing, checking splicing accuracy and template perpendicularity, and inserting connecting bolts 211 into bolt holes 210 for secondary fixing when the splicing meets the requirements. When in splicing, the positioning pins are used for preliminary splicing, flatness of the spliced seams and straightness of the T-shaped sealing strips are checked, and the connecting bolts 211 on the connecting lug plates 200 are installed after the conditions are confirmed to be met.
S3, an annular hoop 300 is additionally arranged between the two connecting lug plates 200, and the annular hoop 300 is tightly locked on the outer side of the glass fiber reinforced plastic cylindrical template by screwing the adjusting bolt 330. The positions of the adjusting bolts 330 of the upper and lower adjacent two annular hoops 300 are arranged in a staggered manner, and in addition, the positions of the adjusting bolts 330 of the annular hoops 300 and the splice joints of the two semicircular template units 100 are arranged in a staggered manner, so that the stress weak points can be prevented from being on the same straight line, and the die explosion in the concrete pouring process can be effectively prevented. After the annular anchor 300 is fixed, the connection bolts 211 of the connection lug plate 200 can be fastened again.
S4, hoisting the spliced glass fiber reinforced plastic cylindrical template to a leveling layer 510 at the position of a cylinder to be poured, embedding a horizontal sealing strip 500 at an annular gap at the bottom of the glass fiber reinforced plastic cylindrical template after the plane position and the perpendicularity meet the requirements, and tightly locking the horizontal sealing strip 500 in the annular gap by using an annular hoop 300.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (8)
1. The utility model provides a glass steel cylinder template system which characterized in that includes two semi-circular template units that splice together, still includes:
the connecting lug plate comprises a first lug plate and a second lug plate which are arranged on two sides of a splicing seam of the semicircular template unit and are arranged in pairs, bolt holes are formed in the first lug plate and the second lug plate and are fixed through connecting bolts, positioning holes for accommodating positioning pins are further formed in the first lug plate and the second lug plate, and the connecting lug plates are arranged on the outer side of the glass fiber reinforced plastic cylindrical template at intervals up and down;
the annular hoop is arranged between two adjacent connecting lug plates, and an opening end of the annular hoop is provided with an adjusting bolt;
the T-shaped sealing strip comprises an embedded section and a splicing section, a longitudinal groove which penetrates through the splicing surface of the semicircular template unit at one side of the splicing seam is formed in the splicing surface, the embedded section is tightly embedded in the longitudinal groove, and the splicing section is arranged at the splicing seam; the splicing section of the T-shaped sealing strip is narrow at the upper part and wide at the lower part, the outer side of the splicing section of the T-shaped sealing strip is flush with the outer surface of the glass fiber reinforced plastic cylindrical template, the top of the inner side of the splicing section of the T-shaped sealing strip is flush with the inner surface of the glass fiber reinforced plastic cylindrical template, and the bottom of the splicing section of the T-shaped sealing strip protrudes out of the inner surface of the glass fiber reinforced plastic cylindrical template; the splicing section of the T-shaped sealing strip is trapezoid with the top width d and the bottom width d+m, wherein d is the thickness of the glass fiber reinforced plastic cylindrical template, and m is the deformation reserved at the bottom of the T-shaped sealing strip;
the outer side of the bottom of the glass fiber reinforced plastic cylindrical template is provided with a thickening layer, the bottom of the thickening layer along the periphery of the glass fiber reinforced plastic cylindrical template is provided with a horizontal through annular gap, a horizontal sealing strip is arranged at the annular gap, and the horizontal sealing strip is fixed in the annular gap through an annular hoop.
2. The glass fiber reinforced plastic cylindrical formwork system as claimed in claim 1, wherein the first and second lug plates are made of steel plates with L-shaped cross sections, one side of the L-shaped steel plates of the first and second lug plates is fixed on the semicircular formwork units, and the other side is fixed together through the connecting bolts.
3. The glass fiber reinforced plastic cylindrical template system according to claim 2, wherein glass fiber reinforced plastic strips are arranged between the connecting lug plates and the semicircular template units, the glass fiber reinforced plastic strips are adhered to the semicircular template units through strong glue, and the glass fiber reinforced plastic strips are riveted or bolted with the first lug plate and the second lug plate.
4. A glass reinforced plastic cylindrical formwork system as in claim 3, wherein the first and second ear panels are provided with triangular stiffening ribs.
5. The glass fiber reinforced plastic cylindrical formwork system according to claim 1, wherein the positions of the adjusting bolts of two adjacent annular hoops are staggered, and an included angle of 75-105 degrees is formed between the positions of the adjusting bolts and the positions of the splice joints.
6. The glass fiber reinforced plastic cylindrical formwork system according to claim 1, wherein the annular hoop comprises a flexible steel belt with U-shaped grooves at two ends, cushion blocks embedded in the U-shaped grooves, and adjusting bolts penetrating through the two cushion blocks and the U-shaped grooves.
7. The glass fiber reinforced plastic cylindrical template system according to claim 1, wherein the material of the T-shaped sealing strip and the horizontal sealing strip is silica gel or rubber.
8. The construction method of the glass fiber reinforced plastic cylindrical formwork system as claimed in any one of claims 1 to 7, wherein the construction method comprises the following steps:
s1, horizontally placing a semicircular template unit, coating glue on a T-shaped sealing strip, and embedding an embedded section of the T-shaped sealing strip into a longitudinal groove on a splicing surface of the semicircular template unit;
s2, splicing the two semicircular template units, inserting a positioning pin into a positioning hole of the connecting lug plate for primary fixing, checking splicing accuracy and template perpendicularity, and inserting a connecting bolt into a bolt hole for secondary fixing when the splicing meets the requirements;
s3, an annular hoop is additionally arranged between the two connecting lug plates, and an adjusting bolt is screwed to enable the annular hoop to be tightly locked on the outer side of the glass fiber reinforced plastic cylindrical template;
s4, hoisting the glass fiber reinforced plastic cylindrical template to a leveling layer at the position of a cylinder to be poured, embedding a horizontal sealing strip at an annular gap at the bottom of the glass fiber reinforced plastic cylindrical template after the plane position and the perpendicularity meet the requirements, and tightly locking the horizontal sealing strip in the annular gap by using an annular anchor ear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710259189.XA CN107023163B (en) | 2017-04-20 | 2017-04-20 | Glass fiber reinforced plastic cylindrical template system and construction method thereof |
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| CN201710259189.XA CN107023163B (en) | 2017-04-20 | 2017-04-20 | Glass fiber reinforced plastic cylindrical template system and construction method thereof |
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| CN107023163B true CN107023163B (en) | 2023-11-07 |
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|---|---|---|---|---|
| CN108374554A (en) * | 2018-03-12 | 2018-08-07 | 上海建工五建集团有限公司 | Tilted cylindrical envelope template system and construction method |
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