CN212505875U - Pier top back pressure structure of No. 0 block triangular bracket of rigid frame bridge - Google Patents

Pier top back pressure structure of No. 0 block triangular bracket of rigid frame bridge Download PDF

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Publication number
CN212505875U
CN212505875U CN202020906438.7U CN202020906438U CN212505875U CN 212505875 U CN212505875 U CN 212505875U CN 202020906438 U CN202020906438 U CN 202020906438U CN 212505875 U CN212505875 U CN 212505875U
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CN
China
Prior art keywords
pier
reaction frame
jack
triangular bracket
bracket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202020906438.7U
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Chinese (zh)
Inventor
黎洪安
鞠晓鹏
刘烨
刘宇
李康超
唐琪
张重
王模
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China Construction Fourth Engineering Division Corp Ltd
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China Construction Fourth Engineering Division Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN202020906438.7U priority Critical patent/CN212505875U/en
Application granted granted Critical
Publication of CN212505875U publication Critical patent/CN212505875U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a No. 0 piece triangle bracket mound top back pressure structure of rigid frame bridge, go into the finish rolling screw-thread steel of pier and set up the square timber at the pier top including the anchor, set up the reaction frame on the square timber, the upper end and the reaction frame fixed connection of finish rolling screw-thread steel, have the triangle bracket at the both sides fixed mounting of pier, placed the jack on the triangle bracket, and the upper end of jack is tight with the bottom top of reaction frame. The utility model discloses place the jack on the triangular bracket, the jack jacking back application of force is in the reaction frame, because the lower extreme and the pier of finish rolling deformed steel bar carry out effective anchor, its upper end and reaction frame fixed connection have restricted the deformation of reaction frame to the realization carries out the pre-compaction to the triangular bracket, and gives the pier with pressure transmission, and the biography power route is clear and definite, reliable. Therefore, compare with methods such as traditional sand bag prepressing in bags, retaining prepressing and steel strand wires are anti-drawing, the utility model discloses it is easy to implement, economy, safety, reliable.

Description

Pier top back pressure structure of No. 0 block triangular bracket of rigid frame bridge
Technical Field
The utility model relates to a No. 0 piece triangular bracket mound top back pressure structure of rigid frame bridge belongs to highway engineering, railway engineering and municipal works technical field.
Background
The continuous rigid frame bridge is an important bridge structure spanning rivers and deep valleys, and is different from a simply supported bridge with an upper structure capable of being prefabricated, the general pier height of the continuous rigid frame bridge is higher, the section of a box girder is larger, the upper structure needs to be subjected to hanging basket cantilever cast-in-place construction, a No. 0 block needs to be constructed before cantilever construction, the No. 0 block generally adopts a triangular bracket for construction, and the triangular bracket needs to be pre-pressed according to construction requirements in order to ensure the safety and the stability of the triangular bracket. The commonly used prepressing modes comprise bagged abrasive belt prepressing, water storage prepressing, steel strand counter-pulling and the like, and the prepressing modes are troublesome in operation, waste in manpower and material resources and poor in reliability.
SUMMERY OF THE UTILITY MODEL
The utility model provides a simple structure, safe and reliable, with low costs rigid frame bridge No. 0 piece triangular bracket mound top back pressure structure to overcome prior art's not enough.
The technical scheme of the utility model: the utility model provides a No. 0 piece triangular bracket mound top back pressure structure of rigid frame bridge, goes into the finish rolling screw-thread steel of pier and sets up the square timber at the pier top including the anchor, has set up the reaction frame on the square timber, the upper end and the reaction frame fixed connection of finish rolling screw-thread steel, have triangular bracket at the both sides fixed mounting of pier, placed the jack on triangular bracket, and the upper end of jack is tight with the bottom top of reaction frame.
Furthermore, a pressing plate is erected at the top of the reaction frame, and the upper end of the finish-rolled deformed steel bar is fixedly connected with the nut after extending out of the top of the pressing plate.
Furthermore, the reaction frames are arranged in two groups, and each group of reaction frame is formed by overlapping and welding two I-shaped steels together.
Due to the adoption of the technical scheme, the utility model has the advantages of: the utility model discloses place the jack on the triangular bracket, the jack jacking back application of force is in the reaction frame, because the lower extreme and the pier of finish rolling deformed steel bar carry out effective anchor, its upper end and reaction frame fixed connection have restricted the deformation of reaction frame to the realization carries out the pre-compaction to the triangular bracket, and gives the pier with pressure transmission, and the biography power route is clear and definite, reliable. Therefore, compare with methods such as traditional sand bag prepressing in bags, retaining prepressing and steel strand wires are anti-drawing, the utility model discloses it is easy to implement, economy, safety, reliable.
Drawings
Fig. 1 is a front view of the structure diagram of the present invention;
FIG. 2 is a plan view of a finish-rolled deformed steel bar;
FIG. 3 is a floor plan view of the jack;
FIG. 4 is a schematic view of the connection of finish-rolled deformed steel bars.
Description of reference numerals: 1-counterforce beam, 2-finish rolling deformed steel bar, 3-jack, 4-square timber, 5-triangular bracket, 6-pressing plate and 7-nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail with reference to the accompanying drawings and examples.
The embodiment of the utility model provides a: a structural schematic diagram of a No. 0 block triangular bracket pier top back pressure structure of rigid frame bridge is as shown in fig. 1 ~ 4, go into the finish rolling screw-thread steel 2 of pier and set up the square timber 4 at the pier top including the anchor, set up reaction frame 1 on square timber 4, the upper end and the reaction frame 1 fixed connection of finish rolling screw-thread steel 2, have triangular bracket 5 at the both sides fixed mounting of pier, placed jack 3 on triangular bracket 5, and jack 3's upper end and the bottom of reaction frame 1 push up tightly. And a pressing plate 6 is erected at the top of the reaction frame 1, and the upper end of the finish-rolled deformed steel bar 2 is fixedly connected with a nut 7 after extending out of the top of the pressing plate 6. The reaction frame 1 is provided with two groups, and each group of reaction frame 1 is formed by overlapping and welding two I-shaped steels.
The utility model discloses a theory of operation: the utility model discloses place jack 3 on triangular bracket 5, the application of force is in reaction frame 1 after 3 jacking of jack, because the lower extreme of finish rolling screw-thread steel 2 carries out effective anchor with the pier, its upper end and 1 fixed connection of reaction frame have restricted reaction frame 1's deformation to the realization carries out the pre-compaction to triangular bracket 5, and gives the pier with pressure transmission, and it is clear and definite, reliable to pass the power route. Therefore, compare with methods such as traditional sand bag prepressing in bags, retaining prepressing and steel strand wires are anti-drawing, the utility model discloses it is easy to implement, economy, safety, reliable.

Claims (3)

1. The utility model provides a No. 0 piece triangle bracket mound top back pressure structure of rigid frame bridge, goes into finish rolling screw-thread steel (2) and the square timber (4) of setting at the pier top of pier, its characterized in that including the anchor: set up reaction frame (1) on square timber (4), the upper end and reaction frame (1) fixed connection of finish rolling screw-thread steel (2), there are triangular bracket (5) in the both sides fixed mounting of pier, placed jack (3) on triangular bracket (5), and the upper end of jack (3) is tight with the bottom top of reaction frame (1).
2. The pier top back pressure structure of the No. 0 block triangular bracket of the rigid frame bridge according to claim 1, characterized in that: and a pressing plate (6) is erected at the top of the reaction frame (1), and the upper end of the finish-rolled deformed steel bar (2) is fixedly connected with a nut (7) after extending out of the top of the pressing plate (6).
3. The pier top back pressure structure of the No. 0 block triangular bracket of the rigid frame bridge according to claim 1, characterized in that: the reaction frames (1) are arranged in two groups, and each group of reaction frame (1) is formed by overlapping and welding two I-shaped steels together.
CN202020906438.7U 2020-05-26 2020-05-26 Pier top back pressure structure of No. 0 block triangular bracket of rigid frame bridge Expired - Fee Related CN212505875U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020906438.7U CN212505875U (en) 2020-05-26 2020-05-26 Pier top back pressure structure of No. 0 block triangular bracket of rigid frame bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020906438.7U CN212505875U (en) 2020-05-26 2020-05-26 Pier top back pressure structure of No. 0 block triangular bracket of rigid frame bridge

Publications (1)

Publication Number Publication Date
CN212505875U true CN212505875U (en) 2021-02-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020906438.7U Expired - Fee Related CN212505875U (en) 2020-05-26 2020-05-26 Pier top back pressure structure of No. 0 block triangular bracket of rigid frame bridge

Country Status (1)

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CN (1) CN212505875U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113818362A (en) * 2021-10-19 2021-12-21 中交一公局第二工程有限公司 Non-landing super-long assembly type bracket and hanging basket integrated structure and construction method
CN114808667A (en) * 2022-05-30 2022-07-29 中建七局交通建设有限公司 Supporting structure suitable for No. 0 block of rigid frame bridge and construction method of supporting structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113818362A (en) * 2021-10-19 2021-12-21 中交一公局第二工程有限公司 Non-landing super-long assembly type bracket and hanging basket integrated structure and construction method
CN114808667A (en) * 2022-05-30 2022-07-29 中建七局交通建设有限公司 Supporting structure suitable for No. 0 block of rigid frame bridge and construction method of supporting structure

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Granted publication date: 20210209