CN114197296B - Prestressed steel pier column foot with reaction frame in bearing platform and construction method thereof - Google Patents
Prestressed steel pier column foot with reaction frame in bearing platform and construction method thereof Download PDFInfo
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- CN114197296B CN114197296B CN202111427244.4A CN202111427244A CN114197296B CN 114197296 B CN114197296 B CN 114197296B CN 202111427244 A CN202111427244 A CN 202111427244A CN 114197296 B CN114197296 B CN 114197296B
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- bearing platform
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 56
- 239000010959 steel Substances 0.000 title claims abstract description 56
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 45
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 210000001503 joint Anatomy 0.000 claims description 23
- 230000002787 reinforcement Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 16
- 235000017491 Bambusa tulda Nutrition 0.000 description 16
- 241001330002 Bambuseae Species 0.000 description 16
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 16
- 239000011425 bamboo Substances 0.000 description 16
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a prestress steel pier stud leg with a reaction frame in a bearing platform and a construction method thereof, and the prestress steel pier stud leg comprises a reaction frame main body, wherein a connecting beam is welded between an upper frame and a lower frame of the reaction frame main body, a preformed hole is formed in the reaction frame main body, steel pipes are inserted into the preformed hole, guide shell plates are inserted between the preformed holes, lug plates are arranged on the side walls of the guide shell plates, and a length adjusting component is arranged between the lug plates.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a prestressed steel pier column foot with a reaction frame in a bearing platform and a construction method thereof.
Background
With the continuous increase of urban area and population, the demands of various communities on urban traffic convenience are higher, and more overpasses and overpasses play a role in connecting various road networks in urban traffic, so that the running efficiency of the urban traffic is effectively enhanced. Meanwhile, the demand of society on urban land is gradually accelerated, in order to save urban land, a municipal bridge often adopts a single bridge pier to support the bridge, which saves more space, so that higher requirements are put forward on the stress structures of bridge piers and bearing platforms, and the requirements can be well met by adopting the design of prestressed bridge piers.
The construction of the prestressed bridge pier tends to be mature at present, but certain difficulties exist in the construction of the prestressed bridge pier combining the steel bridge pier and the counter-force frame bearing platform. Firstly, the reaction frame needs to be contained in the bearing platform, after the construction of the bearing platform is completed, the prestressed reinforcement and the seamless steel pipe in the reaction frame also need to extend out of the top surface of the bearing platform to penetrate through the reserved hole on the bottom plate of the column foot of the steel pier to be connected and anchored with the steel pier, so that the bearing platform, the reaction frame and the steel pier can form an effective prestress force transmission mechanism system.
However, in the process of installing the seamless steel pipe in the preformed hole on the reaction frame, the seamless steel pipe needs to be carefully aligned by a user so that the seamless steel pipe can be smoothly inserted into the vertically corresponding preformed hole, but the insertion of the seamless steel pipe is time-consuming and labor-consuming, the seamless steel pipe is misplaced carelessly, the insertion of the seamless steel pipe is difficult, and the improvement of the engineering progress is not facilitated.
Therefore, the invention provides the prestressed steel pier stud leg with the reaction frame in the bearing platform and the construction method thereof, which are used for solving the problems.
Disclosure of Invention
The invention aims to provide a prestress steel pier stud with a reaction frame in a bearing platform and a construction method thereof, which are used for solving the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the prestress steel pier stud with the counterforce frame in the bearing platform comprises a counterforce frame main body, a connecting beam is welded between an upper frame and a lower frame of the counterforce frame main body, preformed holes are formed in the counterforce frame main body, steel pipes are installed and inserted in the preformed holes, guide shell plates are inserted between the preformed holes, lug plates are installed on the side walls of the guide shell plates, and a length adjusting assembly is arranged between the lug plates.
Preferably, the guide shell plate is provided with an upper group and a lower group, the upper end face of the guide shell plate is provided with an upper abutting plate, the outer diameter of the upper abutting plate corresponds to the inner diameter of the reserved hole, and when the upper abutting plate is inserted into the reserved hole, the upper abutting plate is attached to the reserved hole.
Preferably, the lower end plug-in type of the guide shell plate is provided with a lower butt joint plate, the side wall of the lower butt joint plate is provided with a supporting plate, the supporting plate is symmetrically provided with a cylindrical shaft rod, the cylindrical shaft rod is plugged on an ear block, the ear block is arranged on the side wall of the guide shell plate, and the cylindrical shaft rod is sleeved with a spring.
Preferably, the length adjustment assembly comprises a threaded rod, a threaded ring barrel and a cylindrical barrel, wherein the upper end of the threaded rod is installed on an ear plate on the upper portion of the guide shell plate, the lower end of the threaded rod is arranged in the cylindrical barrel, the lower end of the cylindrical barrel is vertically installed on the ear plate on the lower portion of the guide shell plate, the threaded ring barrel is rotatably installed at the upper end of the cylindrical barrel, and the threaded ring barrel is installed on the threaded rod in a threaded manner.
Preferably, the side wall of the thread ring cylinder is provided with a handle, the handle is provided with a plurality of groups, the bottom surface of the thread ring cylinder is provided with a rotating ring, the end part of the cylinder is provided with an annular groove, the rotating ring is rotatably arranged in the annular groove, and the thread ring cylinder is rotatably arranged with the cylinder through the rotating ring.
Preferably, the mount pad is installed at the inside bottom surface center of cylinder, has seted up the screw groove on the mount pad, and the cylinder pole is installed to screw groove internal thread, and the upper end of cylinder pole and the up end parallel and level of cylinder barrel have seted up the shaft hole on the central axis of threaded rod, shaft hole and cylinder pole assorted, and the cylinder pole is pegged graft in the shaft hole.
Preferably, the side wall of the guide shell plate is provided with a guide rod, the lower end of the guide rod is arranged on the lug plate at the lower end of the guide shell plate, and the upper end of the guide rod is inserted on the lug plate at the upper end of the guide shell plate.
The construction method comprises the following steps:
s1, hoisting a steel structure reaction frame to a bearing platform bottom rib after bearing platform binding construction is completed, and rechecking the horizontal positioning and elevation of the reaction frame;
s2, inserting a lower butt joint plate at the lower end of the guide shell plate into the reserved hole;
s3, pressing down the guide shell plate, compressing the spring, inserting an upper butt joint plate at the upper end of the guide shell plate into the reserved hole on the upper part, loosening the guide shell plate, and clamping the guide shell plate into the reserved hole corresponding to the upper part and the lower part;
s4, inserting the steel pipe from a preformed hole on the upper surface of the reaction frame main body, and then penetrating through the preformed hole on the lower surface of the upper reaction frame main body under the guiding action of the guiding shell plate;
s5, taking out the guide shell plate, and then installing other steel pipes;
s6, tightly supporting and reinforcing the seamless steel pipe, and welding upper and lower grouting pipes;
s7, penetrating the prestressed reinforcement into a seamless steel tube and fixing;
s8, constructing bearing platform steel bars and pouring concrete;
s9, hoisting the steel bridge pier column base after the concrete strength of the bearing platform meets the requirement, and adjusting the horizontal position and elevation;
s10, injecting slurry at the joint of the bearing platform and the column base;
s11, tensioning, locking and reinforcing the prestressed reinforcement;
s12, grouting by a grouting pipe;
s13, constructing column foot encapsulation concrete;
s14, subsequent construction.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the guide shell plates are arranged between the upper frame and the lower frame of the reaction frame main body, the lower end of each guide shell plate is provided with the lower butt joint plate in a plugging manner, and the upper end of each guide shell plate is provided with the upper butt joint plate;
2. according to the invention, the length adjusting component is arranged on the side wall of the guide shell plate, when the guide shell plate is used, the threaded rod can be controlled to extend into or be far away from the cylinder barrel through the rotation of the threaded ring barrel, so that the length of the guide shell plate is changed, the total length of the guide shell plate can adapt to the distance between the upper frame support and the lower frame support of the reaction frame main body, and the application range of the guide shell plate is increased.
Drawings
FIG. 1 is a schematic view of a reaction frame of the present invention;
FIG. 2 is a schematic view of a portion of the reaction frame of the present invention;
FIG. 3 is a top view of the guide shell plate of the present invention;
FIG. 4 is a schematic view of a first view of a deflector shell of the present invention;
FIG. 5 is a schematic view of a second view of the guide shell plate of the present invention;
FIG. 6 is a cross-sectional view of a portion of the structure of the present invention;
fig. 7 is a construction flow chart.
In the figure: the reaction frame comprises a reaction frame main body 1, a connecting beam 2, a preformed hole 3, a steel pipe 4, a guide shell plate 5, an arc-shaped plate 51, an ear plate 6, a guide rod 7, a threaded rod 8, a threaded ring barrel 9, a handle 91, a rotating ring 92, a cylindrical barrel 10, an installation seat 101, a cylindrical rod 102, an upper butt plate 11, a lower butt plate 12, a supporting plate 13, a cylindrical shaft lever 14, a spring 15 and an ear block 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. Embodiments of the present invention are intended to be within the scope of the present invention as defined by the appended claims.
Referring to fig. 1 to 7, the present invention provides a technical solution: the utility model provides a prestressing force steel pier stud foot of reaction frame is established to cushion cap and construction method thereof, includes reaction frame main part 1, and the welding has tie-beam 2 between the upper and lower frame of reaction frame main part 1, has seted up preformed hole 3 on the reaction frame main part 1, installs in the preformed hole 3 and peg graft has steel pipe 4, peg graft between preformed hole 3 has direction shell plate 5, and otic placode 6 is installed to the lateral wall of direction shell plate 5, is equipped with length adjustment subassembly between the otic placode 6.
The guide shell plate 5 is provided with an upper group and a lower group, an upper butt joint plate 11 is installed on the upper end face of the guide shell plate 5, the outer diameter of the upper butt joint plate 11 corresponds to the inner diameter of the reserved hole 3, and when the upper butt joint plate 11 is inserted into the reserved hole 3, the upper butt joint plate 11 is attached to the reserved hole 3.
The lower end of the guide shell plate 5 is provided with a lower butt plate 12 in a plugging mode, the side wall of the lower butt plate 12 is provided with a supporting plate 13, the supporting plate 13 is symmetrically provided with a cylindrical shaft lever 14, the cylindrical shaft lever 14 is plugged on an ear block 16, the ear block 16 is arranged on the side wall of the guide shell plate 5, a spring 15 is sleeved on the cylindrical shaft lever 14, the lower butt plate 12 at the lower end of the guide shell plate 5 is plugged on a reserved hole 3 in use, then the guide shell plate 5 is pressed down, the spring 15 is compressed, then the upper butt plate 11 at the upper end of the guide shell plate 5 is plugged in the reserved hole 3 on the upper surface and then is loosened, and the guide shell plate 5 is clamped in the reserved hole 3 corresponding to the upper and lower parts under the action of the spring 15.
The length adjustment subassembly comprises threaded rod 8, screw thread ring section of thick bamboo 9 and cylinder section of thick bamboo 10, the upper end of threaded rod 8 is installed on the otic placode 6 on guide shell plate 5 upper portion, and the cylinder section of thick bamboo 10 is arranged in to the lower extreme of threaded rod 8, the lower extreme of cylinder section of thick bamboo 10 is vertical to be installed on the otic placode 6 of guide shell plate 5 lower part, screw thread ring section of thick bamboo 9 is installed in the upper end rotation of cylinder section of thick bamboo 10, screw thread ring section of thick bamboo 9 screw thread is installed on threaded rod 8, when using, through the rotation of screw thread ring section of thick bamboo 9, just can control threaded rod 8 stretch into or keep away from cylinder section of thick bamboo 10 for the length of guide shell plate 5 changes, so that the total length of guide shell plate 5 can adapt to the distance of the upper and lower frame support of counter-force frame main part 1, increase the application range of guide shell plate 5.
The handle 91 is installed to the lateral wall of screw ring section of thick bamboo 9, and handle 91 is provided with the multiunit, and rotation ring 92 is installed to the bottom surface of screw ring section of thick bamboo 9, and the ring channel has been seted up to the tip of cylinder section of thick bamboo 10, and rotation ring 92 rotates to be installed in the ring channel, and screw ring section of thick bamboo 9 rotates through rotation ring 92 and cylinder section of thick bamboo 10 and installs.
The mount pad 101 is installed at the inside bottom surface center of cylinder section of thick bamboo 10, has seted up the screw groove on the mount pad 101, and cylinder pole 102 is installed to screw groove internal thread, and cylinder pole 102's upper end and cylinder section of thick bamboo 10 up end parallel and level have been seted up the shaft hole on the central axis of threaded rod 8, shaft hole and cylinder pole 102 assorted, and cylinder pole 102 peg graft in the shaft hole, can increase the stability that threaded rod 8 removed through cylinder pole 102, avoid long-time use back slope, reduce the pressure of swivel becket 92 simultaneously.
The lateral wall of direction shell plate 5 is equipped with guide bar 7, and the otic placode 6 at the guide shell plate 5 lower extreme is installed to the lower extreme of guide bar 7, and the upper end of guide bar 7 is pegged graft on the otic placode 6 of guide shell plate 5 upper end, can make two sets of direction shell plates 5 more stable in the in-process of using or length adjustment's in-process through guide bar 7.
The construction method comprises the following steps:
s1, hoisting a steel structure reaction frame to a bearing platform bottom rib after bearing platform binding construction is completed, and rechecking the horizontal positioning and elevation of the reaction frame;
s2, inserting a lower butt joint plate 12 at the lower end of the guide shell plate 5 into the reserved hole 3;
s3, pressing down the guide shell plate 5, compressing the springs 15, inserting the upper butt joint plate 11 at the upper end of the guide shell plate 5 into the reserved holes 3 on the upper surface, loosening, and clamping the guide shell plate 5 into the reserved holes 3 corresponding to the upper surface and the lower surface;
s4, inserting the steel pipe 4 from the reserved hole 3 on the upper surface of the reaction frame main body 1, and then penetrating through the reserved hole 3 on the lower surface of the upper reaction frame main body 1 under the guiding action of the guiding shell plate 5;
s5, taking out the guide shell plate 5, and then installing other steel pipes 4;
s6, tightly supporting and reinforcing the seamless steel pipe, and welding upper and lower grouting pipes;
s7, penetrating the prestressed reinforcement into a seamless steel tube and fixing;
s8, constructing bearing platform steel bars and pouring concrete;
s9, hoisting the steel bridge pier column base after the concrete strength of the bearing platform meets the requirement, and adjusting the horizontal position and elevation;
s10, injecting slurry at the joint of the bearing platform and the column base;
s11, tensioning, locking and reinforcing the prestressed reinforcement;
s12, grouting by a grouting pipe;
s13, constructing column foot encapsulation concrete;
s14, subsequent construction.
Working principle: when the seamless steel tube 4 is installed on the reaction frame main body 1, in order to facilitate the rapid insertion and installation of the steel tube 4, firstly, according to the upper and lower heights of the reaction frame main body 1, the length of the guide shell 5 is adjusted so that the guide shell 5 can be clamped between the reserved holes 3 of the reaction frame main body 1, the handle 91 and the threaded ring cylinder 9 are rotated, the threaded rod 8 stretches into or leaves the cylindrical cylinder 10 due to the rotation of the threaded ring cylinder 9, the length of the guide shell 5 is changed, after the adjustment, the lower butt joint plate 12 at the lower end of the guide shell 5 is inserted into the reserved holes 3, then the guide shell 5 is pressed down, the spring 15 is compressed, then the upper butt joint plate 11 at the upper end of the guide shell 5 is inserted into the reserved holes 3 above, then released, under the action of the spring 15, the guide shell 5 can be clamped in the reserved holes 3 above the upper surface of the reaction frame main body 1, then under the guide effect of the guide shell 5, then the upper butt joint plate 12 passes through the reserved holes 3 below the upper surface of the reaction frame main body 1, then the guide shell 5 can be fixed, and other steel tubes 4 can be taken out, and then, the other steel tubes 4 can be installed.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a pre-stress steel mound column shoe of reaction frame is established in cushion cap, includes reaction frame main part (1), its characterized in that: a connecting beam (2) is welded between the upper frame and the lower frame of the reaction frame main body (1), a preformed hole (3) is formed in the reaction frame main body (1), steel pipes (4) are installed in the preformed hole (3) in an inserted mode, a guide shell plate (5) is inserted between the preformed holes (3), an ear plate (6) is installed on the side wall of the guide shell plate (5), and a length adjusting component is arranged between the ear plates (6); the guide shell plates (5) are provided with an upper group and a lower group, an upper butt joint plate (11) is arranged on the upper end face of the guide shell plates (5), the outer diameter of the upper butt joint plate (11) corresponds to the inner diameter of the reserved hole (3), and when the upper butt joint plate (11) is inserted into the reserved hole (3), the upper butt joint plate (11) is attached to the reserved hole (3); the lower end of the guide shell plate (5) is provided with a lower butt joint plate (12) in a plug-in mode, the side wall of the lower butt joint plate (12) is provided with a supporting plate (13), the supporting plate (13) is symmetrically provided with a cylindrical shaft lever (14), the cylindrical shaft lever (14) is plugged on an ear block (16), the ear block (16) is arranged on the side wall of the guide shell plate (5), and the cylindrical shaft lever (14) is sleeved with a spring (15); the length adjusting assembly consists of a threaded rod (8), a threaded ring cylinder (9) and a cylindrical cylinder (10), wherein the upper end of the threaded rod (8) is installed on an ear plate (6) at the upper part of a guide shell plate (5), the lower end of the threaded rod (8) is arranged in the cylindrical cylinder (10), the lower end of the cylindrical cylinder (10) is vertically installed on the ear plate (6) at the lower part of the guide shell plate (5), the threaded ring cylinder (9) is rotatably installed at the upper end of the cylindrical cylinder (10), and the threaded ring cylinder (9) is installed on the threaded rod (8) in a threaded manner; the lateral wall of direction shell board (5) is equipped with guide bar (7), and otic placode (6) at guide shell board (5) lower extreme are installed to the lower extreme of guide bar (7), and the upper end of guide bar (7) is pegged graft on otic placode (6) of guide shell board (5) upper end.
2. The prestressed steel pier column foot with a reaction frame arranged in a bearing platform according to claim 1, wherein the prestressed steel pier column foot is characterized in that: the side wall of the threaded ring cylinder (9) is provided with a handle (91), the handle (91) is provided with a plurality of groups, the bottom surface of the threaded ring cylinder (9) is provided with a rotating ring (92), the end part of the cylindrical cylinder (10) is provided with an annular groove, the rotating ring (92) is rotatably arranged in the annular groove, and the threaded ring cylinder (9) is rotatably arranged with the cylindrical cylinder (10) through the rotating ring (92).
3. The prestressed steel pier column foot with a reaction frame arranged in a bearing platform according to claim 1, wherein the prestressed steel pier column foot is characterized in that: the installation seat (101) is installed at the inside bottom surface center of cylinder (10), has seted up the screw thread groove on mount pad (101), and cylinder pole (102) are installed to screw thread inslot screw thread, and the upper end of cylinder pole (102) and the up end parallel and level of cylinder (10), have seted up the shaft hole on the central axis of threaded rod (8), shaft hole and cylinder pole (102) assorted, and cylinder pole (102) are pegged graft in the shaft hole.
4. A prestressed steel pier column base with a reaction frame in the bearing platform according to any one of claims 1-3, characterized in that: the construction method comprises the following steps:
s1, hoisting a steel structure reaction frame to a bearing platform bottom rib after bearing platform binding construction is completed, and rechecking the horizontal positioning and elevation of the reaction frame;
s2, inserting a lower butt joint plate (12) at the lower end of the guide shell plate (5) into the reserved hole (3);
s3, pressing down the guide shell plate (5), compressing the springs (15), inserting the upper butt joint plate (11) at the upper end of the guide shell plate (5) into the reserved holes (3) on the upper part, loosening, and clamping the guide shell plate (5) into the reserved holes (3) corresponding to the upper part and the lower part;
s4, inserting the steel pipe (4) from the preformed hole (3) on the upper surface of the counterforce frame main body (1), and then penetrating through the preformed hole (3) on the lower surface of the upper counterforce frame main body (1) under the guiding action of the guiding shell plate (5);
s5, taking out the guide shell plate (5), and then installing other steel pipes (4);
s6, tightly supporting and reinforcing the seamless steel pipe, and welding upper and lower grouting pipes;
s7, penetrating the prestressed reinforcement into a seamless steel tube and fixing;
s8, constructing bearing platform steel bars and pouring concrete;
s9, hoisting the steel bridge pier column base after the concrete strength of the bearing platform meets the requirement, and adjusting the horizontal position and elevation;
s10, injecting slurry at the joint of the bearing platform and the column base;
s11, tensioning, locking and reinforcing the prestressed reinforcement;
s12, grouting by a grouting pipe;
s13, constructing column foot encapsulation concrete;
s14, subsequent construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111427244.4A CN114197296B (en) | 2021-11-29 | 2021-11-29 | Prestressed steel pier column foot with reaction frame in bearing platform and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111427244.4A CN114197296B (en) | 2021-11-29 | 2021-11-29 | Prestressed steel pier column foot with reaction frame in bearing platform and construction method thereof |
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| Publication Number | Publication Date |
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| CN114197296A CN114197296A (en) | 2022-03-18 |
| CN114197296B true CN114197296B (en) | 2023-10-20 |
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| KR20150051503A (en) * | 2013-11-04 | 2015-05-13 | 지에스건설 주식회사 | Precast buit-up pier structure and construction method using the same |
| CN204001779U (en) * | 2014-08-25 | 2014-12-10 | 哈尔滨达城绿色建筑技术开发股份有限公司 | A kind of built with ribbed bricks wall construction reinforced bar guiding device |
| CN206928499U (en) * | 2017-07-05 | 2018-01-26 | 中建八局第一建设有限公司 | A kind of furred ceiling reinforcing bar suspension rod expansion bolt installs fastener |
| CN208009909U (en) * | 2018-03-30 | 2018-10-26 | 佳木斯大学 | A kind of built with ribbed bricks wall construction reinforced bar guide device |
| CN109989532A (en) * | 2018-05-10 | 2019-07-09 | 浙江宁巍机械科技有限公司 | A kind of push-in connector |
| CN208587693U (en) * | 2018-07-21 | 2019-03-08 | 骆兆志 | A kind of non-destructive testing bracket that easy of rise is adjusted |
| CN209811109U (en) * | 2019-01-17 | 2019-12-20 | 天津和兴源建筑工程有限公司 | Prestressed concrete tubular pile reinforcement cage weaving equipment |
| CN210439680U (en) * | 2019-04-25 | 2020-05-01 | 深圳市安固工程技术有限公司 | Adjustable formwork support for reinforced concrete column |
| CN211171598U (en) * | 2019-11-12 | 2020-08-04 | 中冶建工集团有限公司 | Installation positioning device for bridge expansion joint steel reinforcement framework |
| CN111379219A (en) * | 2020-04-20 | 2020-07-07 | 中铁四局集团第二工程有限公司 | Assembly type bridge pier column and bearing platform connecting structure and construction method thereof |
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