CN218436598U - Assembled pier stud and assembly correcting unit thereof - Google Patents
Assembled pier stud and assembly correcting unit thereof Download PDFInfo
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- CN218436598U CN218436598U CN202221760041.7U CN202221760041U CN218436598U CN 218436598 U CN218436598 U CN 218436598U CN 202221760041 U CN202221760041 U CN 202221760041U CN 218436598 U CN218436598 U CN 218436598U
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- bearing platform
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- sleeve
- grouting
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- 238000012937 correction Methods 0.000 claims abstract description 31
- 239000011440 grout Substances 0.000 claims abstract description 31
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 239000002002 slurry Substances 0.000 claims description 10
- 239000004570 mortar (masonry) Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 6
- 238000007569 slipcasting Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Abstract
The utility model discloses an assembled pier stud and a correcting device thereof, which comprises a bearing platform and a pier stud, wherein a plurality of sleeves are embedded at the bottom of the pier stud, a grouting opening and a grout discharging opening which are communicated with the sleeves are radially arranged on the side wall of the lower part of the pier stud, and pier stud reinforcing steel bars are embedded in the pier stud; bearing platform reinforcing steel bars which extend upwards into the sleeve and are coaxially butted with the pier stud reinforcing steel bars are poured and embedded in the bearing platform; the upper part of the sleeve is communicated with the grout outlet, the lower part of the sleeve is communicated with the grout inlet, and a plurality of layers of grouting convex rings arranged at intervals are manufactured on the inner wall of the sleeve. The vertical correction units of the assembly correction device are uniformly distributed at the straight line edge of the top surface of the bearing platform in the circumferential direction; the horizontal correction unit of the assembly correction device is arranged at the corner of the top surface of the bearing platform to provide horizontal support positioning for the corner of the pier stud. The utility model discloses effectively solve the stifled pipe problem of grout among the prior art, and pier stud positioning accuracy is high, effectively guarantees the quality of being connected of pier stud and cushion cap.
Description
Technical Field
The utility model relates to an engineering construction technical field specifically is an assembled pier stud and correcting unit thereof.
Background
At present, the popularization and the use of the fabricated bridge in the building industry have profound and significant influence on the realization of building industrialization. The advantages are as follows: the method changes the traditional extensive construction mode, realizes the goal of green ecological development, saves energy, reduces emission, improves quality and increases efficiency, and more importantly, changes the business mode of the whole building industry, realizes the maximized integration of resources and the maximized utilization. At present, the technical system and the management mode of the existing fabricated bridge are gradually mature, but needs to be improved and improved urgently in some construction procedures so as to improve the standardized construction of enterprises to the maximum extent and realize the maximization of the overall benefit.
Assembled pier stud is in the installation, and traditional technical scheme still exists not enoughly, easily appears at the grout in-process: the grouting mortar is not easy to be conveyed in a pipeline, so that the grouting equipment is easy to have the quality problems of pipe blockage, slurry shrinkage, slurry backflow and the like in the pier stud connecting sleeve, and the problems of slurry failure caused by grouting channel blockage and slow grouting circulation and low work efficiency cause cost increase.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide an assembled pier stud and correcting unit thereof, effectively solve the stifled pipe problem of grout among the prior art, and pier stud positioning accuracy is high, effectively guarantees the quality of being connected of pier stud and cushion cap.
An assembled pier column comprises a bearing platform and a pier column fixed on the bearing platform, wherein a plurality of sleeves are axially poured and embedded at the edge of the end face of the bottom of the pier column, a plurality of grouting ports and slurry discharging ports communicated with the sleeves are radially formed in the side wall of the lower part of the pier column, and a plurality of pier column reinforcing steel bars axially extending into the sleeves respectively are poured and embedded in the pier column; a plurality of bearing platform reinforcing steel bars which extend upwards into the sleeve and are coaxially butted with the pier stud reinforcing steel bars are poured and embedded in the bearing platform; the upper part of the sleeve is communicated with the grout outlet, the lower part of the sleeve is communicated with the grout inlet, and a plurality of layers of grouting convex rings arranged at intervals are manufactured on the inner wall of the sleeve.
Preferably, the top surface of the bearing platform and the bottom surface of the pier stud are respectively provided with a cross-shaped positioning groove.
An assembly correction device is used for an assembly pier stud and comprises a vertical correction unit and a horizontal correction unit; the vertical correction units are uniformly distributed at the straight line edge of the top surface of the bearing platform in the circumferential direction and provide supporting force for adjusting the vertical height and the inclination angle of the pier column; the horizontal correction unit is arranged at the corner of the top surface of the bearing platform and provides horizontal supporting and positioning for the corner of the pier stud.
Preferably, the vertical correction unit comprises a jack and a vertical support frame, the top and the bottom of the vertical support frame are respectively fixed by fastening bolts which are connected with the grouting opening and the grout discharging opening through threads, and a horizontally extending support angle steel is fixedly welded in the middle of the vertical support frame; the jack is vertically and fixedly arranged at the edge of the top surface of the bearing platform, and the vertical top support of the output end of the jack is connected to the bottom surface of the support angle steel.
Preferably, the horizontal correction unit comprises L-shaped steel and an adjusting bolt, wherein the L-shaped steel is fixedly arranged at a corner of the top surface of the bearing platform in a horizontal posture, and the L-shaped steel is penetrated through and in threaded connection with the adjusting bolt which is supported on the side wall of the pier in a horizontal posture.
The utility model has the advantages and the technical effect be:
the utility model discloses an assembled pier stud and correcting unit thereof has optimized the calibration location structure, pouring connection structure, slip casting exhaust structure and the construction technology of pier stud and cushion cap, wherein the bottom of the pier stud is poured and embedded sleeve is used for the slip casting connection of pier stud and cushion cap, the inside of the sleeve is poured and butted with cushion cap reinforcing bar and pier stud reinforcing bar, in addition, the slip casting bulge loop on the sleeve can effectively improve the connection strength of pier stud and cushion cap; in addition, the utility model adopts the grouting opening at the bottom of the sleeve for grouting and the grout discharging opening at the top of the sleeve for exhausting and discharging, thus effectively avoiding the problem that the grouting can not be fully performed due to accumulation of bubbles in the sleeve; additionally the utility model discloses a vertical correction unit and horizontal correction unit are used for pier stud support height, support inclination and support horizontal position's regulation, guarantee on the one hand that pier stud bottom surface and cushion cap top surface's cross constant head tank are aimed at and are adjusted well, and on the other hand guarantees that cushion cap reinforcing bar coaxial insert to the sleeve inside, avoids the problem of buckling even of cushion cap reinforcing bar and pier stud bottom surface or sleeve inner wall's collision.
The utility model discloses an assembled pier stud and correcting unit thereof can obviously improve the groutability of high-strength mortar, prevents the thick liquid backward flow, and the plumpness of mortar in the guarantee connecting sleeve increases advantages such as work efficiency. An upward bent pipe is additionally arranged at the position of the grout outlet to prevent grout in the connecting sleeve from shrinking and meet the requirement of grout fullness, and the standard of grouting stop is based on the fact that the grout overflows from the top of the bent pipe; the check valve is additionally arranged at the grouting opening, after grouting is stopped, the check valve is closed to prevent slurry from flowing reversely, and the grouting pipe can be quickly put into grouting operation of the next hole, so that the working efficiency is greatly improved; the work efficiency is improved, and simultaneously, the mortar can be prevented from being initially solidified to influence the solid strength of the mortar in the connecting sleeve. Finally, adopt the utility model discloses can effectively reduce grouting equipment's pressure, load and power requirement, can be effective and smooth and easy convey the mortar to appointed grout position.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a side view of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view of section A-A of FIG. 2;
FIG. 4 is a cross-sectional view of section B-B of FIG. 2;
FIG. 5 is a perspective view of the middle support platform of the present invention;
FIG. 6 is a top view of the platform of the present invention;
fig. 7 is a bottom view of the pier stud of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 3 at D;
FIG. 9 is a partial enlarged view of FIG. 3 at D (a schematic view of the vertical alignment unit connection);
in the figure: 1-pier studs; 2-a bearing platform; 3-grouting port; 4-a pulp discharge port; 5-a vertical correction unit; 6-a horizontal correction unit; 7-L section steel; 8-adjusting the bolt; 9-bearing platform steel bars; 10-a cross positioning groove; 11-a sleeve; 12-pier stud reinforcement; 13-bending the pipe; 14-a check valve; 15-grouting a convex ring; 16-grouting pipes; 17-a jack; 18-a fastening bolt; 19-a vertical support frame; and 20-supporting angle steel.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the invention should not be limited thereby.
An assembled pier stud comprises a bearing platform and a pier stud 1 fixed on the bearing platform 2, wherein a plurality of sleeves 11 are axially poured and embedded at the edge of the end face of the bottom of the pier stud, a plurality of grouting ports 3 and grout discharging ports 4 communicated with the sleeves are radially formed in the side wall of the lower part of the pier stud, and a plurality of pier stud reinforcing steel bars 12 axially extending into the sleeves respectively are poured and embedded in the pier stud; a plurality of bearing platform reinforcing steel bars 9 which extend upwards into the sleeve and are coaxially butted with the pier stud reinforcing steel bars are poured and embedded in the bearing platform; the upper part of the sleeve is communicated with the grout outlet, the lower part of the sleeve is communicated with the grout inlet, and a plurality of layers of grouting convex rings 15 arranged at intervals are manufactured on the inner wall of the sleeve.
Preferably, the top surface of the bearing platform and the bottom surface of the pier stud are respectively provided with a cross-shaped positioning groove 10.
An assembly correcting device is used for an assembly pier column and comprises a vertical correcting unit 5 and a horizontal correcting unit 6; the vertical correction units are uniformly distributed at the linear edge of the top surface of the bearing platform in the circumferential direction and provide supporting force for vertical height and inclination angle adjustment of the pier column; the horizontal correction unit is arranged at the corner of the top surface of the bearing platform and provides horizontal supporting and positioning for the corner of the pier stud.
Preferably, the vertical correction unit comprises a jack 17 and a vertical support frame 19, the top and the bottom of the vertical support frame are respectively fixed by fastening bolts 18 which are connected with the grouting opening and the grout discharging opening through threads, and a horizontally extending support angle steel 20 is fixedly welded in the middle of the vertical support frame; the jack is vertically and fixedly arranged at the edge of the top surface of the bearing platform, and the vertical top support of the output end of the jack is connected to the bottom surface of the support angle steel.
Preferably, the horizontal correction unit comprises an L-shaped steel 7 and an adjusting bolt 8, wherein the L-shaped steel is fixedly arranged at a corner of the top surface of the bearing platform in a horizontal posture, and the L-shaped steel is penetrated and in threaded connection with the adjusting bolt which is supported on the side wall of the pier in the horizontal posture.
In order to more clearly illustrate the embodiments of the present invention, several examples are provided below:
an assembling construction method of an assembling type pier stud comprises the following steps:
(1) Checking the pier column before leaving the field: the concrete surface should be smooth and the edge and corner lines should be straight; the surface of the concrete is smooth and has no obvious color difference; the surface of the concrete has no honeycomb pitted surface and no crack; and (3) checking other embedded parts: whether the settlement observation mark, the grounding steel plate, the pier top and the pier bottom embedded steel plate are complete or not is judged; checking whether the grouting opening and the slurry discharging opening are blocked, and finding out the blockage to dredge in time;
(2) Roughening the top and the bottom of the pier column and the top surface of the bearing platform: measuring central points at the top and bottom ends of two adjacent surfaces of the pier stud after the pier stud arrives at the site, popping out an ink line to form a cross-shaped positioning groove, and pasting a BMW mark; adopting a roughening machine to roughen the bottom of the pier stud, and adopting an air pick to roughen the top of the pier stud;
(3) Cleaning a bearing table surface: before the prefabricated pier stud hoisting operation, retesting the top elevation of the bearing platform and discharging an outer side line of the pier stud structure, outwards amplifying 2cm ink ejection lines, cutting a joint by using a cutting machine to form a cross positioning groove, chiseling the top surface of the bearing platform by using an electric pick, wherein the chiseling rate is 100 percent, chiseling is performed on the basis of exposing fresh stones, blowing floating slag on the surface by using an air blower after chiseling is finished, cleaning dust and wetting the chiseling surface by using a high-pressure water gun, finally removing redundant accumulated water by using a high-pressure air pipe, and polishing a steel bar with the embedded height exceeding 42cm by using a grinding wheel machine;
(4) Pre-assembling pier columns: the crane and the field strength are determined by calculation, the pier stud is slowly moved to an installation bearing platform by a crawler crane and slowly lowered, whether a steel bar of the bearing platform can smoothly enter a sleeve is checked, the pier stud is lowered after no error exists, whether the pier stud can be lowered in place is observed, a vertical correction unit is installed, the position and the verticality of the pier stud are adjusted, the pier stud is lifted after no error exists, and the setting construction is ready to start;
(5) And (3) grouting pier columns: c60 high-strength mortar is poured between the bearing platform and the pier stud, after mortar is paved, a grout stopping pad is sleeved on each bearing platform steel bar, the grout stopping pad is slightly higher than the grout liquid level, so that after the pier stud is installed in place, the rubber gasket can be tightly attached to the grouting sleeve, and grout is prevented from flowing out in the grouting process;
(6) Pier column positioning and correcting: after the mortar is poured and paved, the column bottom grouting sleeve is aligned to the reinforcing steel bar of the bearing platform to slowly fall off when the pier column is hoisted, the center line of the bottom of the pier column is retested in the process, and the pier column is aligned to the cross-shaped positioning groove of the bearing platform; the slurry is extruded out from the periphery in the lowering process, so that the slurry is guaranteed to be compact; cleaning the extruded mortar, and trowelling the mortar surface and the baffle plate; after the grouting is finished for 24 hours, the temporary support of the prefabricated pier stud can be removed and sleeve grouting construction can be carried out; then correcting the verticality of the pier column by using eight jacks arranged around the pier column;
(7) Grouting the sleeve for connection: the bent pipe 13 bent upwards is inserted and connected in a sealing mode at the position of the grout outlet to prevent grout in the connecting sleeve from shrinking and meet the requirement of grout fullness, and the grouting stopping standard is that the grout overflows from the top of the bent pipe; a grouting pipe 16 is inserted in the position of a grouting opening in a sealing way, a check valve 14 is additionally arranged, and after grouting is stopped, the valve is closed to prevent slurry from flowing reversely; and after 24h, the pier stud is installed, and the vertical correction unit and the horizontal correction unit are removed.
The utility model aims to solve the technical problem that an assembled pier stud and correcting unit thereof is provided to be applied to assembled bridge pier stud connection construction, pour into high strength cement mortar in its sleeve, the mortar mobility that excels in is greater than or equal to 300mm, satisfies 1d age compressive strength and is greater than or equal to 35Mpa,28d age compressive strength and is greater than or equal to 100Mpa.
This slip casting device includes: metering equipment, a mortar mixer (a discharging mouth-holding filtering device), an extrusion type grouting machine, a grouting pipe, a grouting check valve, a grout outlet overflow device and test equipment.
The metering equipment accurately weighs the mixing water according to the mixing proportion required in the specification of the high-strength mortar product, and the weighing is rechecked before the mixing of the bagged dry mortar, so that the accuracy of the water-cement ratio is ensured.
Mortar mixer carries out the mix evenly to the mix water of bagged high strength mortar, weighing, and 5min are no less than to the mix time, and the mortar mixer discharge gate sets up netted filter equipment to filter the small knot of mortar that can not mix thoroughly, and extrusion formula slip casting equipment is connected to the mortar mixer discharge gate.
The extrusion type grouting machine is driven by a 7.5KW motor, high-strength mortar is extruded and conveyed in a tank cavity of the extrusion type grouting machine by a spiral rod, and a grouting pipe is connected to the end part of the tank cavity of the extrusion type grouting machine.
One end of the grouting pipe is connected with the extrusion type grouting machine, and the other end of the grouting pipe is connected with a grouting opening of the pier stud through a check valve.
The check valve is installed in pier stud slip casting mouth position, and the valve adopts stainless steel ball valve, the clearance thick liquid of being convenient for, and long-term use is not rusty, the card is dun, the valve with advance the thick liquid mouth and adopt PPR union coupling.
The return bend is installed in row's thick liquid mouth position, adopts the PVC pipe material, and overflow arrangement sets up 90 elbow shapes.
Because the requirement of the prefabricated assembly process on the component precision is strict, and the installation precision of the prefabricated pier column reinforcement cage and the prefabricated pier column reinforcement cage assembly is strictly controlled within the range of +/-2 mm, the pier column component is prefabricated in a whole factory and then is transported to an engineering site for installation.
The prefabricated pier columns adopt vertical columns, the section of each single pier column is rectangular and provided with an arc chamfer, the main line single bearing platform mainly adopts a double pier column form, and part of the main line bearing platform and the ramp bearing platform adopt a single pier column form.
The pier column main reinforcement adopts HRB400 phi 40 steel bars, and the stirrup and the tie bar adopt HRB400 phi 12 and phi 16 steel bars. The pier column assembly adopts a mode that a phi 40 full grouting sleeve is connected with a bearing platform and a capping beam, the sleeve is arranged at the bottom of the pier column, and the capping beam is embedded at the top of the pier column to connect with a dowel.
The pier column connecting process is characterized in that a pier column bottom sleeve is connected with a bearing platform embedded rib, and a pier column top embedded rib is connected with a cover beam bottom sleeve. After the pier stud is installed on site, the perpendicularity and the relative position are adjusted, and after adjustment, a 2 cm-thick high-strength shrinkage-free mortar cushion layer is paved on the splicing surface. In the process of maintaining the mortar of the cushion layer, temporary measures are adopted to fix the upright post. The bedding mortar should be cured for not less than 24 hours until it is initially set to withstand the subsequent grouting pressure (not less than 1 MPa). And finally, performing 100MPa mortar grouting operation on the pier stud connecting sleeve to complete the whole assembling process.
The utility model adopts the mature products and the mature technical means in the prior art.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (5)
1. The utility model provides an assembled pier stud, includes the cushion cap and fixes the pier stud on the cushion cap, its characterized in that: a plurality of sleeves are axially poured and embedded at the edge of the end face of the bottom of the pier column, a plurality of grouting ports and slurry discharging ports communicated with the sleeves are radially formed in the side wall of the lower part of the pier column, and a plurality of pier column reinforcing steel bars axially extending into the sleeves are poured and embedded in the interior of the pier column; a plurality of bearing platform reinforcing steel bars which extend upwards into the sleeve and are coaxially butted with the pier stud reinforcing steel bars are poured and embedded in the bearing platform; the upper part of the sleeve is communicated with the grout outlet, the lower part of the sleeve is communicated with the grout inlet, and a plurality of layers of grouting convex rings arranged at intervals are manufactured on the inner wall of the sleeve.
2. The fabricated pier stud of claim 1, wherein: the top surface of the bearing platform and the bottom surface of the pier stud are respectively provided with a cross-shaped positioning groove.
3. An assembly correction device for the assembled pier stud of claim 1, wherein: comprises a vertical correction unit and a horizontal correction unit; the vertical correction units are uniformly distributed at the linear edge of the top surface of the bearing platform in the circumferential direction and provide supporting force for vertical height and inclination angle adjustment of the pier column; the horizontal correction unit is arranged at the corner of the top surface of the bearing platform and provides horizontal supporting and positioning for the corner of the pier stud.
4. The fitting correction device according to claim 3, characterized in that: the vertical correction unit comprises a jack and a vertical support frame, the top and the bottom of the vertical support frame are respectively fixed by fastening bolts which are connected with the grouting opening and the grout discharging opening through threads, and a horizontally extending support angle steel is fixedly welded in the middle of the vertical support frame; the jack is vertically and fixedly arranged at the edge of the top surface of the bearing platform, and the vertical top support of the output end of the jack is connected to the bottom surface of the support angle steel.
5. The fitting correction device according to claim 3, characterized in that: the horizontal correction unit comprises L-shaped steel and an adjusting bolt, wherein the L-shaped steel is fixedly arranged at the corner of the top surface of the bearing platform in a horizontal posture, and the L-shaped steel is penetrated through and in threaded connection with the adjusting bolt which is horizontally supported on the side wall of the pier column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221760041.7U CN218436598U (en) | 2022-07-10 | 2022-07-10 | Assembled pier stud and assembly correcting unit thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221760041.7U CN218436598U (en) | 2022-07-10 | 2022-07-10 | Assembled pier stud and assembly correcting unit thereof |
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| Publication Number | Publication Date |
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| CN218436598U true CN218436598U (en) | 2023-02-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990997A (en) * | 2022-07-10 | 2022-09-02 | 中铁十八局集团有限公司 | Assembly type pier column and assembly correction device and assembly construction method thereof |
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2022
- 2022-07-10 CN CN202221760041.7U patent/CN218436598U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990997A (en) * | 2022-07-10 | 2022-09-02 | 中铁十八局集团有限公司 | Assembly type pier column and assembly correction device and assembly construction method thereof |
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