CN212771954U - Pier and bent cap integral type construction platform - Google Patents
Pier and bent cap integral type construction platform Download PDFInfo
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- CN212771954U CN212771954U CN202020877099.4U CN202020877099U CN212771954U CN 212771954 U CN212771954 U CN 212771954U CN 202020877099 U CN202020877099 U CN 202020877099U CN 212771954 U CN212771954 U CN 212771954U
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Abstract
The utility model provides a pier and bent cap integral type construction platform belongs to bridge construction platform technical field. This pier construction platform, on embracing the mound frame and being fixed in the pier stud through anchor bolt, embrace fixedly on the mound frame and be provided with many and enclose the arris stand, the top of enclosing the arris stand is fixed with the cantilever beam, is provided with chain block on the cantilever beam, when building the pier stud, through the inside form and the outside form of chain block installation pier stud, then can pour the concrete, accomplish pouring of pier stud. Embrace the fastness of mound frame on the mound frame is fixed in the pier through anchor bolt and guarantee to embrace the mound frame, guaranteed the safety in the work progress, use this construction platform, need not to drop into tall and big hoisting equipment such as tower crane, need not to set up tall and big scaffold engineering, avoided tall and big loop wheel machine safety construction risk and tall and big scaffold safety risk such as tower crane.
Description
Technical Field
The utility model belongs to the technical field of bridge construction platform, a pier and bent cap integral type construction platform is related to.
Background
The construction of piers and capping beams of highway bridges and railway bridges is one of the main contents of bridge construction, and the height of the piers is several meters to dozens of meters, more than one hundred meters and even several hundred meters, and the quantity of the piers is large. The construction of high bridge piers and bent caps belongs to high-altitude operation, and is one of the difficulties in bridge construction. At present, the mainstream construction method of a high pier comprises layered rollover construction and layered creeping formwork construction, when the height of the pier is not too high, a layered rollover construction technology is mostly adopted, a scaffold platform or a shaping formwork platform is firstly erected, a scaffold is erected, a reinforcing steel bar is hoisted and assembled with a template by using a ground truck crane or a crawler crane, and concrete is pumped into the formwork by using an automobile pump; when the pier is higher, the tall scaffold process and the rollover construction technology are not applicable, a hydraulic climbing formwork technology is generally adopted, a construction platform and a formwork are integrated, a climbing guide groove and the formwork platform are anchored by pre-buried bolts on a pier body, the formwork platform is jacked by a hydraulic rod, a tower crane is arranged beside the pier to hoist steel bars, and concrete is hoisted into the formwork by a tower crane bucket or is pumped into the formwork by a ground pump. And (4) after the construction of the pier is finished, removing the template by using a crane, and then erecting a capping beam bottom die for capping beam construction.
Although the pier adopts a scaffold process technology, the scaffold has more overhead operation and more potential safety hazards in the process of building the scaffold; scaffold frame structure safety and technical quality management and control point are many, and scaffold frame stability potential safety hazard is many.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the above-mentioned problem that prior art exists, provide a pier and bent cap integral type construction platform, the utility model aims to solve the technical problem that: how to improve the safety of the layered construction of pier columns and capping beams and improve the efficiency.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a pier and bent cap integral type construction platform, is including embracing the mound frame, it is provided with clearance to embrace between the pier stud of mound frame and pier, embraces on the mound frame is fixed in the pier stud through anchor bolt, it encloses the arris stand to be provided with many all around on the mound frame to embrace, the top of enclosing the arris stand is fixed with the cantilever beam, be provided with chain block on the cantilever beam, chain block is used for hanging and installs and remove pier stud side form.
In this pier and bent cap integral type construction platform, embrace on the mound frame passes through anchor bolt fastening in the pier stud, embrace fixedly on the mound frame to be provided with many and enclose the arris stand, the top of enclosing the arris stand is fixed with the cantilever beam, is provided with chain block on the cantilever beam, when building the pier stud, through the inside form and the outside form of chain block installation pier stud, then can pour the concrete, accomplish pouring of pier stud. Embrace the fastness of mound frame on the pier of mound frame through anchor bolt fastening in layered construction, guaranteed construction platform's safety, use this construction platform, need not to drop into tall and big hoisting equipment such as tower crane, need not to set up tall and big scaffold engineering, avoided tall and big loop wheel machine safety construction risk and tall and big scaffold safety risk such as tower crane.
In the pier and cap beam integrated construction platform, a main operation platform is arranged at the upper part of the pier holding frame.
In the pier and bent cap integrated construction platform, an anchor bolt operation platform is arranged in the pier holding frame.
In foretell pier and bent cap integral type construction platform, construction platform still includes lift traction system, lift traction system includes hoist engine, shoulder pole roof beam, leading wheel, movable pulley, fixed pulley and wire rope, the hoist engine is fixed in on the ground cushion cap, the shoulder pole roof beam is installed in the top of the pier stud that the layering was pour, the leading wheel is installed in embracing one side that the pier stud frame is close to the pier stud and is leaned on with the pier stud counterbalance, makes the platform can follow the pier stud and smoothly move about from top to bottom, movable pulley install in embrace one side that the pier stud frame is close to the pier stud, the fixed pulley install in on the shoulder pole roof beam, wire rope's one end with the hoist engine is connected, wire rope's the other end pass the fixed pulley and with the movable pulley is connected.
In the pier and bent cap integrated construction platform, the construction platform further comprises a second operation platform, and the second operation platform is arranged in the pier and is suspended on the shoulder pole beam through a steel wire rope.
In the pier and bent cap integrated construction platform, the pier holding frame is a frame consisting of a plurality of main trusses and connecting flower stands, and the main trusses are fixedly connected with the connecting flower stands.
In foretell pier and bent cap integral type construction platform, construction platform still includes the elevator of ascending a height, the elevator of ascending a height install in embrace on the pier frame, and pass through the hoist engine provides traction force.
The construction method simultaneously considers pier columns and pier capping beams, can ensure construction safety during construction of the piers and the capping beams, improves efficiency, and saves investment of large-scale equipment.
The purpose of the utility model can be realized by the following technical proposal:
A. firstly, building a bearing platform of a pier and a first layer of pier stud, and embedding an anchor bolt for anchoring a winch on the bearing platform when the bearing platform is constructed;
B. hoisting the pier holding frame to the first layer of pier stud by using a ground crane, and fixing the pier holding frame on the first layer of pier stud through an anchoring bolt;
C. installing an inner side die and an outer side die with a chain block arranged on the cantilever beam by using a ground crane, and pouring concrete into the installed inner side die and outer side die by using an automobile pump to realize the pouring of the second-layer pier stud;
D. after the second-layer pier stud is finished, the outer side die is detached by using the chain block on the cantilever beam, the detached outer side is placed against the surrounding edge stand column to clean the outer side die, and meanwhile, the upper end of the second-layer pier stud is provided with the shoulder pole beam which is connected with the winch, the movable pulley and the fixed pulley through the steel wire rope;
E. removing the anchoring bolts on the pier holding frame, lowering the pier holding frame to a bearing platform surface through a winch, placing a reinforcing steel bar material for pouring a third layer on the pier holding frame, starting the winch to lift the pier holding frame to the top of the second-layer pier stud and level with the top of the second-layer pier stud, and fixing the pier holding frame on the second-layer pier stud through the anchoring bolts;
F. dismantling the shoulder pole beam, then binding the steel bars of the pier stud of the third layer, lifting the inner side die and the outer side die through the chain block, installing, and pouring concrete to realize the pouring of the pier stud of the third layer;
G. after the third layer of pier stud is finished, the outer side die is detached by using the chain block on the cantilever beam, the detached outer side is placed against the enclosing edge upright column to clean the outer side die, and meanwhile, the upper end of the third layer of pier stud is provided with a carrying pole beam which is connected with a winch, a movable pulley and a fixed pulley through a steel wire rope;
H. and E, pouring the upper layer of the pier according to the steps E to G until the pouring of the whole pier is completed.
In the above construction method for a pier, the method further includes the steps of:
I. and (4) after the whole pier stud is poured, fixing the pier holding frame on the top pier stud according to the step E, removing the shoulder pole beam, binding the reinforcing steel bars of the cover beam, lifting the side mold of the cover beam through the chain block, installing, pouring concrete, and realizing pouring of the cover beam.
In the above construction method for a pier, the method further includes the steps of:
J. and after the capping beam is poured, mounting a carrying pole beam on the capping beam, connecting the winch, the movable pulley and the fixed pulley by using a steel wire rope, removing the anchoring bolt on the pier-holding frame, and lowering the pier-holding frame to a bearing platform to complete the whole construction operation.
By the construction method of the pier and the bent cap, a traditional scaffold does not need to be built in the whole process, the pier holding frame is fixed on the pier through the anchoring bolts, firmness of the pier holding frame is guaranteed, safety in the construction process is guaranteed, and potential safety hazards in the construction process of building the traditional scaffold are effectively avoided.
Compared with the prior art, the utility model has the advantages as follows:
1. embrace the fastness of mound frame on the mound frame is fixed in the pier through anchor bolt and guarantee to embrace the mound frame, guaranteed the safety in the work progress, use this construction platform, need not to drop into tall and big hoisting equipment such as tower crane, need not to set up tall and big scaffold engineering, avoided tall and big loop wheel machine safety construction risk and tall and big scaffold safety risk such as tower crane.
2. The pier holding frame is a frame consisting of a plurality of main trusses and connecting flower stands, and is good in integrity and high in rigidity, and construction safety is guaranteed.
3. Pier stud and bent cap construction form integral type construction platform, and one shot forming can accomplish pier stud and bent cap construction.
Drawings
FIG. 1 is a schematic structural view of the present construction platform;
FIG. 2 is a schematic structural view of the construction platform from another view angle;
FIG. 3 is a schematic view of the structure of the capping beam during construction;
figure 4 is a schematic view of a pier cap and a first layer of pier stud;
fig. 5 is a schematic view illustrating the construction of a second storey pier;
fig. 6 is a schematic view illustrating the construction of a second storey pier;
fig. 7 is a schematic view of the construction of a third layer of pier stud;
fig. 8 is a schematic view of the construction of a third layer of pier stud;
fig. 9 is a schematic view illustrating construction of a fourth pier stud.
In the figure, 1, a pier holding frame; 2. an anchor bolt; 3. an enclosing edge upright column; 4. a cantilever beam; 5. a chain block; 6. a main work platform; 7. an anchor bolt operating platform; 8. a winch; 9. a shoulder pole beam; 10. a guide wheel; 11. a movable pulley; 12. a fixed pulley; 13. a wire rope; 14. a second work platform; 15. a main truss; 16. connecting the flower stand; 17. ascending an elevator; 18. pier studs; 19. and a capping beam.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, this pier and bent cap integral type construction platform, including embracing mound frame 1, be provided with the clearance between embracing mound frame 1 and the pier stud 18 of pier, embrace mound frame 1 and be fixed in on the pier stud 18 through anchor bolt 2, embrace fixedly on the mound frame 1 and be provided with many and enclose arris stand 3, the top of enclosing arris stand 3 is fixed with cantilever beam 4, is provided with chain block 5 on the cantilever beam 4, and chain block 5 is used for hanging and installing and removing pier stud side form. In this pier construction platform, it is fixed in the pier stud 18 of the lower floor concreted that the layering was under construction to embrace pier frame 1 through anchor bolt 2, then carry out the one deck construction, it encloses arris stand 3 to fix being provided with many roots on the pier frame 1 to embrace, the top of enclosing arris stand 3 is fixed with cantilever beam 4, be provided with chain block 5 on the cantilever beam 4, when building pier stud 18, through the inside form and the outside form of chain block 5 installation pier stud 18, then can pour the concrete, accomplish pouring of pier stud 18. Embrace and guarantee to embrace the fastness of mound frame 1 on the pier of mound frame 1 through anchor bolt 2 is fixed in the layered construction, guaranteed construction platform's safety, the adoption that effectively avoids traditional scaffold puts up the potential safety hazard that appears in the work progress.
As a preferred embodiment, the height of the pier holding frame 1 is 2-3m, and the gap between the pier holding frame 1 and the pier stud 18 is 10-20cm, so that the pier holding frame 1 and the pier stud 18 can freely move up and down through a movable gap and cannot be locked.
As shown in fig. 1, in the present embodiment, a main work platform 6 is provided on the upper portion of the pier holding frame 1, and an anchor bolt work platform 7 is provided in the pier holding frame 1. The width of the main operation platform 6 is about 1.2m, and an operator stands on the platform surface to perform steel bar formwork construction operation and formwork mounting and dismounting operation; meanwhile, the operator can perform the work of installing or removing the anchor bolt 2 on the anchor bolt operating platform 7.
As shown in fig. 1-2, in this embodiment, the construction platform further includes a lifting traction system, the lifting traction system includes a winch 8, a carrying pole beam 9, a guide wheel 10, a movable pulley 11, a fixed pulley 12 and a steel wire rope 13, the winch 8 is fixed on the ground platform, the carrying pole beam 9 is installed on the top of the pier 18 which is poured in layers, the guide wheel 10 is installed on one side of the pier holding frame 1 close to the pier 18 and abuts against the pier 18, so that the platform can move up and down smoothly along the pier, the movable pulley 11 is installed on one side of the pier holding frame 1 close to the pier 18, the fixed pulley 12 is installed on the carrying pole beam 9, one end of the steel wire rope 13 is connected with the winch 8, and the other end of the steel wire rope 13 passes through the fixed pulley 12 and is connected with the movable pulley. In this structure, tighten up wire rope 13 when starting hoist engine 8, dismantle and embrace anchor bolt 2 between pier frame 1 and the pier stud 18 after, embrace pier frame 1 and be supported by anchor bolt 2 and convert into and pull by shoulder pole beam 9, release wire rope 13 through hoist engine 8, will embrace pier frame 1 and fall to the cushion cap, place the reinforcing bar material that needs and embrace on the pier frame 1, then will embrace pier frame 1 through hoist engine 8 and promote to on 18 the pier stud that has pour and anchor bolt 2 fixes. When the section of the pier stud 18 is small, one carrying pole beam 9 and two windlasses 8 are adopted, when the section of the pier stud 18 is large, the two carrying pole beams 9 and four windlasses 8 are adopted, and the number of the carrying pole beams 9 and the number of the windlasses 8 can be selected according to actual conditions so as to adapt to actual requirements.
As shown in fig. 1, in the present embodiment, the construction platform further includes a second work platform 14, and the second work platform 14 is disposed in the pier and suspended from the shoulder pole beam 9 by a wire rope 13. In this structure, the second work platform 14 is installed inside the bridge pier to facilitate work on the inner side of the pier 18.
As shown in fig. 2-3, in the present embodiment, the pier-embracing frame 1 is a frame composed of a plurality of main trusses 15 and connecting flower stands 16, the main trusses are designed and manufactured according to the spandrel girder of the cast-in-place bottom mold of the bent cap, and the main trusses 15 and the connecting flower stands 16 are fixedly connected. In the structure, the pier holding frame 1 is a frame consisting of a plurality of main trusses 15 and connecting flower stands 16, and has good integrity and high rigidity, so that the safety of construction operation is ensured.
As shown in fig. 1, in this embodiment, the construction platform further includes a climbing elevator 17, and the climbing elevator 17 is installed on the pier holding frame 1 and provides traction force through the hoist 8.
As shown in fig. 1 to 9, the construction method using the pier and cap beam 19 integrated construction platform comprises the following steps:
A. firstly, building a bearing platform of a pier and a first layer of pier stud 18, and embedding an anchor bolt for anchoring a winch 8 on the bearing platform when the bearing platform is constructed;
B. hoisting the pier holding frame 1 to the first layer of pier stud 18 by using a ground crane, and fixing the pier holding frame 1 on the first layer of pier stud 18 through the anchor bolt 2;
C. installing an inner side die and an outer side die with a chain block 5 arranged on the cantilever beam 4 by using a ground crane, and pouring concrete into the installed inner side die and outer side die by using an automobile pump to realize pouring of the second-layer pier stud 18;
D. after the second-layer pier stud 18 is finished, the outer side die is detached by using the chain block 5 on the cantilever beam 4, the detached outer side die is obliquely leaned against the edge enclosing upright post 3 to clean the outer side die, meanwhile, the carrying pole beam 9 is installed at the upper end of the second-layer pier stud 18, and the second-layer pier stud is connected with the winch 8, the movable pulley 11 and the fixed pulley 12 through the steel wire rope 13;
E. dismantling the anchor bolts 2 on the pier holding frame 1, lowering the pier holding frame 1 to a bearing platform surface through the winch 8, placing a reinforcing steel bar material poured on a third layer on the first operation platform, starting the winch 8 to lift the pier holding frame to the second layer of pier stud 18, enabling the pier holding frame to be flush with the top of the second layer of pier stud 18, and fixing the pier holding frame 1 on the second layer of pier stud 18 through the anchor bolts 2;
F. dismantling the shoulder pole beam 9, then binding the steel bars of the third layer of pier stud 18, lifting the inner side mold and the outer side mold through the chain block 5, installing, and pouring concrete to realize the pouring of the third layer of pier stud 18;
G. after the third layer of pier stud 18 is finished, the outer side die is detached by using the chain block 5 on the cantilever beam 4, the detached outer side die is obliquely leaned against the edge enclosing upright post 3 to clean the outer side die, meanwhile, the carrying pole beam 9 is installed at the upper end of the third layer of pier stud 18, and the third layer of pier stud is connected with the winch 8, the movable pulley 11 and the fixed pulley 12 through the steel wire rope 13;
H. and E, pouring the upper layer of the pier according to the steps E to G until the pouring of the whole pier is completed.
In the above construction method for a pier and a capping beam, the method further comprises the following steps:
I. after the whole pier stud 18 is poured, fixing the pier holding frame on the top pier stud 18 according to the step E, removing the shoulder pole beam 9, then binding the reinforcing steel bars of the cover beam 19, lifting the side die of the cover beam 19 through the chain block 5, installing, pouring concrete, and realizing pouring of the cover beam 19.
In the above construction method for a pier and a capping beam, the method further comprises the following steps:
J. and after the cover beam 19 is poured, mounting a carrying pole beam 9 on the cover beam 19, connecting the winch 8, the movable pulley 11 and the fixed pulley 12 by using a steel wire rope 13, removing the anchor bolt 2 on the pier-holding frame 1, and lowering the pier-holding frame 1 to a bearing platform to complete the whole construction operation.
By the construction method of the pier and the bent cap, a traditional scaffold does not need to be built in the whole process, the firmness of the pier holding frame 1 is guaranteed by fixing the pier holding frame 1 on the pier through the anchor bolts 2, the safety in the construction process is guaranteed, and potential safety hazards appear in the construction process of building the traditional scaffold by effectively avoiding the traditional scaffold.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. The utility model provides a pier and bent cap integral type construction platform, a serial communication port, including embracing mound frame (1), be provided with clearance between the pier stud (18) of embracing mound frame (1) and pier, embrace mound frame (1) and be fixed in on pier stud (18) through anchor bolt (2), it encloses arris stand (3) to embrace fixed being provided with many roots all around on mound frame (1), the top of enclosing arris stand (3) is fixed with cantilever beam (4), be provided with chain block (5) on cantilever beam (4), chain block (5) are used for hanging and installing and removing pier stud side form board.
2. The pier and cap beam integrated construction platform as claimed in claim 1, wherein a main operation platform (6) is arranged at the upper part of the pier holding frame (1).
3. The pier and cap beam integrated construction platform as claimed in claim 1, wherein an anchor bolt operation platform (7) is arranged in the pier holding frame (1).
4. The pier and cap beam integrated construction platform of claim 1, the construction platform also comprises a lifting traction system, the lifting traction system comprises a winch (8), a carrying pole beam (9), a guide wheel (10), a movable pulley (11), a fixed pulley (12) and a steel wire rope (13), the winch (8) is fixed on a bearing platform on the ground, the shoulder pole beam (9) is arranged at the top of the pier column (18), the guide wheel (10) is arranged on one side of the pier holding frame (1) close to the pier column (18) and is abutted against the pier column (18), the movable pulley (11) is arranged on one side of the pier holding frame (1) close to the pier stud (18), the fixed pulley (12) is installed on the shoulder pole beam (9), one end of the steel wire rope (13) is connected with the winch (8), and the other end of the steel wire rope (13) penetrates through the fixed pulley (12) and is connected with the movable pulley (11).
5. The pier and cap beam integrated construction platform as claimed in claim 4, further comprising a second work platform (14), wherein the second work platform (14) is arranged in the pier and suspended on the carrying pole beam (9) through a steel wire rope (13).
6. The pier and cap beam integrated construction platform as claimed in claim 1, wherein the pier holding frame (1) is a frame consisting of a plurality of main trusses (15) and connecting pergola (16).
7. The pier and cap integrated construction platform according to any one of claims 1 to 6, wherein the construction platform further comprises a climbing elevator (17), the climbing elevator (17) is mounted on the pier-holding frame (1) and provides traction through a winch (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020877099.4U CN212771954U (en) | 2020-05-22 | 2020-05-22 | Pier and bent cap integral type construction platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020877099.4U CN212771954U (en) | 2020-05-22 | 2020-05-22 | Pier and bent cap integral type construction platform |
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| Publication Number | Publication Date |
|---|---|
| CN212771954U true CN212771954U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020877099.4U Active CN212771954U (en) | 2020-05-22 | 2020-05-22 | Pier and bent cap integral type construction platform |
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| CN (1) | CN212771954U (en) |
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- 2020-05-22 CN CN202020877099.4U patent/CN212771954U/en active Active
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