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 PDFInfo
- 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
- Authority
- 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
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
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
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.
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 |
Family
ID=74393110
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)
Country | Link |
---|---|
CN (1) | CN212505875U (en) |
Cited By (2)
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 |
-
2020
- 2020-05-26 CN CN202020906438.7U patent/CN212505875U/en not_active Expired - Fee Related
Cited By (2)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103452053B (en) | The antidumping bracing means of Single column pier bridge | |
CN212505875U (en) | Pier top back pressure structure of No. 0 block triangular bracket of rigid frame bridge | |
CN103061264B (en) | Method and device for pre-pressing high-position support single column in water | |
CN201574359U (en) | Hanging basket equivalent preloading device used in high-pier large-span bridge construction | |
CN203403373U (en) | Antidumping reinforcing device of single-column pier bridge | |
CN202466586U (en) | Pressure-stabilizing and pile-sealing device for anchored and jacked pile | |
CN111809654A (en) | Assembled tower crane foundation structure | |
CN217781749U (en) | Hanging basket counter-force pre-pressing device | |
CN204475195U (en) | The construction system of the cast-in-place large-tonnage box beam of soft foundation | |
CN203159027U (en) | A prefabricated iron tower foundation spreader | |
CN216040754U (en) | Temporary supporting device in concrete box girder bridge block dismantling hoisting box | |
CN211312544U (en) | Tubular pile and steel pipe combination formula underground structure | |
CN202031107U (en) | Piling machine for water surface wooden piles | |
CN208361754U (en) | A kind of derrick crane base steel plinth suspension mounting structure | |
CN202788877U (en) | Horizontal-vertical loading tunnel combined type full space supporting and propping frame | |
CN202644549U (en) | Single-wall steel hanging box cofferdam | |
CN101586329B (en) | Anchor ear angle-table bracket for large-span prestressed concrete bridge cantilever pouring construction | |
CN201198561Y (en) | Bridging system of self-anchoring type rope-suspension bridge | |
CN201433355Y (en) | Hoop corbel bracket for long-span prestressed concrete bridge cantilever casting construction | |
CN212405225U (en) | Bracket type steel structure tower crane foundation structure | |
CN218147599U (en) | Shield constructs for military use roof beam in dregs hole | |
CN220468611U (en) | Pile top supporting bracket structure | |
CN204343317U (en) | A kind of straight anchor formula steel platform of tower crane | |
CN215888269U (en) | Connecting structure of steel pipe upright post and steel support tie beam | |
CN217536700U (en) | Hoop supporting structure for construction of overwater bridge deck bent cap |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 |