CN213951948U - Prepressing test structure of assembled bracket - Google Patents
Prepressing test structure of assembled bracket Download PDFInfo
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- CN213951948U CN213951948U CN202022009708.7U CN202022009708U CN213951948U CN 213951948 U CN213951948 U CN 213951948U CN 202022009708 U CN202022009708 U CN 202022009708U CN 213951948 U CN213951948 U CN 213951948U
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Abstract
The utility model relates to a pre-compaction test structure of assembled bracket, including two experimental mounds of concrete, be equipped with the counter-force roof beam between two experimental mounds, pour respectively in experimental mound concrete at the both ends of counter-force roof beam, an assembled bracket is installed respectively at the opposite side of two experimental mounds to counter-force roof beam top, has been set up the spandrel girder between two brackets, and the both ends top surface of spandrel girder is vertical jack that sets up respectively, sets up a shoulder pole roof beam on every jack, and the both ends of shoulder pole roof beam are connected through the pull rod respectively with between the counter-force roof beam. The utility model discloses carry out bearing capacity pre-compaction test on experimental mound, provide pressure through the jack, provide the counter-force through the counter-force roof beam, can detect the bracket bearing capacity fast, the bracket direct mount that the bearing capacity satisfies the design requirement uses on cable tower, high mound, avoids loaded down with trivial details process and the safety risk of high altitude pre-compaction.
Description
Technical Field
The utility model belongs to the technical field of the bridge construction, a suspension bridge's cable tower crossbeam construction is related to, concretely relates to carries out the structure that the pre-compaction was experimental to the bearing capacity of the assembled bracket that the crossbeam construction adopted.
Background
A pylon of a suspension bridge usually comprises two pylons, between which a cross-beam is arranged. Because the crossbeam position is higher, usually adopt high altitude bracket method construction, install the bracket respectively in the opposite side of two high tower departments of tower, set up the spandrel girder as the main bearing structure of bracket between the bracket.
And pre-pressing the bracket after the bracket is installed to test the stress performance of the bracket. The conventional preloading method adopts a stacking method, needs to hoist a large amount of ballast to high altitude, and has long construction period and poor safety.
Disclosure of Invention
The utility model aims at not enough to surcharge the pre-compaction method and exist, provide a simple, swift, safe bracket pre-compaction test structure, avoid the safe risk and the loaded down with trivial details process that the high altitude pre-compaction exists to guarantee that the bracket bearing capacity after the installation accords with the designing requirement.
The technical scheme of the utility model as follows:
the utility model provides a pre-compaction test structure of assembled bracket which characterized in that: the device comprises two concrete test piers, wherein a counter-force beam is arranged between the two test piers, the two ends of the counter-force beam are respectively poured in the concrete of the test piers, an assembly bracket is respectively installed on the opposite sides of the two test piers above the counter-force beam, a bearing beam is arranged between the two brackets, the top surfaces of the two ends of the bearing beam are respectively and vertically provided with a jack, the upper end of each jack is provided with a carrying pole beam, and the two ends of the carrying pole beam are respectively connected with the counter-force beam through pull rods.
The utility model is suitable for a pre-compaction of assembled bracket is experimental. Utilize the installation of assembled bracket, dismantle convenient characteristics, install earlier the bracket and carry out bearing capacity pre-compaction test on lower experimental mound, provide pressure through the jack, provide the counter-force through the counter-force roof beam, moreover, the steam generator is simple in structure, the atress is clear and definite, can detect the bracket bearing capacity fast, and the testing result is accurate, high in safety, can lift off direct mount on the pylon from experimental mound after the bracket pre-compaction bearing capacity satisfies the designing requirement, use on the high mound, avoid the loaded down with trivial details process of high altitude pre-compaction and the safe risk that exists.
Drawings
Fig. 1 is a schematic side elevation structure of the present invention;
fig. 2 is a schematic diagram of the horizontal vertical structure of the present invention.
Detailed Description
As shown in fig. 1 and 2, the utility model discloses a two experimental mounds of concrete 1 are equipped with counter-force roof beam 2 between two experimental mounds 1, pour respectively in experimental mound concrete at the both ends of counter-force roof beam 2, and assembled bracket is installed respectively at the opposite side of two experimental mounds to counter-force roof beam top.
Assembled bracket includes roof 3 that the level set up, and roof one side vertical welding curb plate 4, the welding have with roof and curb plate equal vertically backup pad 5 between curb plate and the roof. And 4 pin rod jacks and 4 deformed steel bar jacks are arranged on the side plate. A side plate 4 of the bracket is tightly attached to the side wall of the test pier 1, finish-rolled deformed steel bars 6 and pin bars 7 corresponding to each pin bar jack and each deformed steel bar jack on the side plate of the bracket are inserted into the test pier, one end of each finish-rolled deformed steel bar 6 penetrates through the deformed steel bar jack on the side plate of the bracket, the other end of each finish-rolled deformed steel bar protrudes to the other side of the pier body, and nuts are respectively screwed at two ends of the finish-rolled deformed steel bars to fasten the bracket on the pier body; one end of each pin rod 7 penetrates through the side plate of the bracket, the other end of each pin rod protrudes to the other side of the pier body, and the pin rods provide supporting force for the bracket.
A bearing beam 8 is erected between the brackets on the two test piers, two ends of the bearing beam 8 are respectively supported on the top plates 3 of the two brackets, top surfaces of two ends of the bearing beam 8 are respectively and vertically provided with a jack 9, the upper end of each jack is provided with a carrying pole beam 10, and two ends of the carrying pole beam 10 are respectively connected with the counter-force beam 2 through a pull rod 11.
The jack 9 pushes the shoulder pole beam 10 upwards, and provides counter force through the counter force beam 2 to apply pressure to the bracket. The jack is pressurized step by 5 stages and 20% of each stage according to the design load of the bracket, the jack lasts for a period of time after the maximum design load is reached, the design requirement is met after the bracket is observed to be not deformed, the jack can be installed on a tower column and a high pier and directly used for construction of a cross beam and a cover beam after the bracket is detached from a test pier, high-altitude prepressing is not needed, and the construction safety can be ensured.
Claims (2)
1. The utility model provides a pre-compaction test structure of assembled bracket which characterized in that: the device comprises two concrete test piers, wherein a counter-force beam is arranged between the two test piers, the two ends of the counter-force beam are respectively poured in the concrete of the test piers, an assembly bracket is respectively installed on the opposite sides of the two test piers above the counter-force beam, a bearing beam is arranged between the two brackets, the top surfaces of the two ends of the bearing beam are respectively and vertically provided with a jack, the upper end of each jack is provided with a carrying pole beam, and the two ends of the carrying pole beam are respectively connected with the counter-force beam through pull rods.
2. The pre-compression test structure of the fabricated bracket according to claim 1, wherein: the assembly type bracket comprises a horizontally arranged top plate, one side of the top plate is vertically welded with a side plate, and a supporting plate which is perpendicular to the top plate and the side plate is welded between the side plate and the top plate; the side plate is provided with 4 pin rod insertion holes and 4 deformed steel bar insertion holes, the side plate is tightly attached to the side wall of the test pier, finish-rolled deformed steel bars and pin rods corresponding to the pin rod insertion holes and the deformed steel bar insertion holes in the bracket side plate are inserted into the test pier, one end of each finish-rolled deformed steel bar penetrates through the deformed steel bar insertion hole in the bracket side plate, the other end of each finish-rolled deformed steel bar protrudes out of the other side of the pier body, and two ends of each finish-rolled deformed steel bar are respectively connected with nuts in a threaded mode; one end of each pin rod penetrates through the bracket side plate, and the other end of each pin rod protrudes to the other side of the pier body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022009708.7U CN213951948U (en) | 2020-09-14 | 2020-09-14 | Prepressing test structure of assembled bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022009708.7U CN213951948U (en) | 2020-09-14 | 2020-09-14 | Prepressing test structure of assembled bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213951948U true CN213951948U (en) | 2021-08-13 |
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ID=77201441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022009708.7U Active CN213951948U (en) | 2020-09-14 | 2020-09-14 | Prepressing test structure of assembled bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213951948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117433822A (en) * | 2023-12-20 | 2024-01-23 | 贵州省公路工程集团有限公司 | Structural performance evaluation system and method using reinforced concrete bracket as support |
-
2020
- 2020-09-14 CN CN202022009708.7U patent/CN213951948U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117433822A (en) * | 2023-12-20 | 2024-01-23 | 贵州省公路工程集团有限公司 | Structural performance evaluation system and method using reinforced concrete bracket as support |
| CN117433822B (en) * | 2023-12-20 | 2024-02-13 | 贵州省公路工程集团有限公司 | Structural performance evaluation system and method using reinforced concrete bracket as support |
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