CN205620098U - A loading device for testing reinforced concrete bridge pier anti -seismic performance - Google Patents
A loading device for testing reinforced concrete bridge pier anti -seismic performance Download PDFInfo
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- CN205620098U CN205620098U CN201620379450.0U CN201620379450U CN205620098U CN 205620098 U CN205620098 U CN 205620098U CN 201620379450 U CN201620379450 U CN 201620379450U CN 205620098 U CN205620098 U CN 205620098U
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- seismic performance
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Abstract
The utility model relates to a loading device for testing reinforced concrete bridge pier anti -seismic performance, anti - strength steel beams including horizontal and pier test piece top, anti - strength steel beams's middle part bottom still through the ball pivot with the department rotates and connects in the middle of the top of pier test piece, a support billet and a counter -force billet fixed connection who is located the anti - strength steel beams below who is located the anti - strength steel beams below is passed through the vertical biography power screw rod of a plurality of respectively in anti - strength steel beams's both ends, be equipped with a jack on the counter -force billet, on the counter -force billet was located on the bottom top of jack, the top top was located and is supported on the billet, support the billet through a vertical anchor screw rod and the support T shaped steel board anchor that is located counter -force billet below of a plurality of, support T shaped steel board and rotate a hinge and a lower part pedestal connection through one, the lower part base is fixed in on the same horizontal plane with the bottom of pier test piece. The utility model has the advantages of avoid loading device easy horizontal frictional force of production in the process of the test, improved experimental precision.
Description
Technical field
This utility model relates to concrete anti-earthquake performance test field, particularly relates to a kind of charger for testing seismic performance of reinforced concrete bridge piers.
Background technology
Bridge pier structure is impaired and cause collapsing of bridge superstructure under earthquake shock, occurs frequently at violent earthquake intermediate frequency the most several times existing.The interruption of communication thus caused exacerbates the difficulty of rescue and relief work after shake, causes economic loss difficult to the appraisal.At present, when domestic scholars carries out pseudo-static experimental research to reinforced concrete bridge pier, generally arranging sliding support between jack and counter-force girder steel to meet the demand of bridge pier horizontal displacement, the frictional force between sliding support and counter-force girder steel is often left in the basket and disregards.Therefore, if there is frictional force between sliding support and counter-force girder steel, sliding support moves back and forth so that frictional force power consumption constantly accumulation, the horizontal reverse force value measured by Based on Electro-hydraulic Loading Servo System can be higher than actual value, and Structural Energy Dissipation performance is bigger than normal.The anti-seismic performance research that current domestic most research worker use the charger of band sliding support to carry out reinforced concrete bridge pier, from the point of view of result of study, the positive negative peak usually deviation of bridge pier hysteresis loop is relatively big, and data process more difficulty, make troubles to analysis of experiments
Utility model content
The purpose of this utility model is for above weak point, it is provided that a kind of charger for testing seismic performance of reinforced concrete bridge piers, improves test accuracy.
The scheme that this utility model solution technical problem is used is: a kind of charger for testing seismic performance of reinforced concrete bridge piers, including one horizontal with bridge pier test specimen above counter-force girder steel, the center of described counter-force girder steel is on same axis with the center of described bridge pier test specimen, and the bottom, middle part of described counter-force girder steel is also rotationally connected at the crown center of described bridge pier test specimen through a ball pivot；The two ends of described counter-force girder steel are positioned at the supporting steel backing plate and below counter-force girder steel through several vertical power transmission screw rods through one respectively and are positioned at the fixing connection of the counter-force billet below counter-force girder steel；Described counter-force billet is provided with a jack, and the top, bottom of described jack is located on described counter-force billet, and the top, top of described jack is located on described supporting steel backing plate；Described supporting steel backing plate is positioned at the support T-steel plate anchoring below counter-force billet through several vertical anchorage screws and one, and described support T-steel plate connects through a rotating hinge and a lower base；Described lower base is fixed in same level with the bottom of bridge pier test specimen.
Further, described jack is hydraulic jack, and described hydraulic jack drives through an oil pump.
Further, also include one for bridge pier test specimen apply horizontal loading MTS electro-hydraulic servo drive mechanism, the drive rod of described MTS electro-hydraulic servo drive mechanism is arranged at bridge pier test specimen top side.
Further, described power transmission screw rod is respectively symmetrically and is distributed on described counter-force girder steel and supporting steel plate pad；Described anchorage screw is respectively symmetrically and is distributed in described counter-force billet and described support T-steel plate.
Further, described power transmission screw rod and anchorage screw are four, and four power transmission screw rods are respectively arranged at the corner of described counter-force metal mat and fixing with described counter-force girder steel are connected；Four anchorage screws are respectively arranged at the corner of supporting steel plate pad and Interal fixation T-shaped with described support is connected.
Further, the area of described counter-force billet is less than the area of supporting steel backing plate, and described anchorage screw is arranged at the outside of described power transmission screw rod.
Further, the center rotating midpoint and counter-force billet and supporting steel backing plate of described rotating hinge is on same axis.
Further, described support T-steel plate is arranged at intervals at the vertical connecting plate below horizontal steel plate from a horizontal steel plate and two, and the lower section of two vertical connecting plates is correspondingly provided with the through hole being connected with described rotating hinge.
Compared with prior art, this utility model has following beneficial effect: this utility model eliminates bridge pier test specimen top slide and produces the impact that frictional force is brought to test knot, drive bridge pier test specimen to rotate with horizontal loading in process of the test by arranging rotating hinge, and pier top vertical load remains and test specimen plan vertical.Research finds, uses the vertical loading device of band rotating hinge to carry out bridge pier Experimental Study on Seismic Behavior, and the positive negative peak of hysteresis loop is the most symmetrical, and the energy-dissipating property of test specimen is consistent with practical situation.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model patent is further illustrated.
Fig. 1 is the front view of the charger of this utility model embodiment.
Fig. 2 is the side view of the charger of this utility model embodiment.
Fig. 3 is the structural representation supporting T-steel plate of this utility model embodiment.
In figure: 1-counter-force girder steel；2-power transmission screw rod；3-anchorage screw；4-supporting steel backing plate；5-counter-force billet；6-supports T-steel plate；60-horizontal steel plate；The vertical connecting plate of 61-；610-through hole；7-jack；8-rotating hinge；9-lower base；10-ball pivot；11-bridge pier test specimen.
Detailed description of the invention
With detailed description of the invention, this utility model is further illustrated below in conjunction with the accompanying drawings.
As shown in Fig. 1～2, this utility model embodiment provides a kind of charger for testing seismic performance of reinforced concrete bridge piers, including one horizontal with bridge pier test specimen 11 above counter-force girder steel 1, the center of described counter-force girder steel 1 is on same axis with the center of described bridge pier test specimen 11, and the bottom, middle part of described counter-force girder steel 1 is also rotationally connected at the crown center of described bridge pier test specimen 11 through a ball pivot 10；The two ends of described counter-force girder steel 1 are positioned at the supporting steel backing plate 4 below counter-force girder steel 1 through several vertical power transmission screw rods 2 through one respectively and are positioned at the counter-force billet 5 of counter-force girder steel 1 side with one and fix and be connected；Described counter-force billet 5 is provided with a jack 7, and the top, bottom of described jack 7 is located on described counter-force billet 5, and the top, top of described jack 7 is located on described supporting steel backing plate 4；Described supporting steel backing plate 4 is positioned at the support T-steel plate 6 below counter-force billet 5 through several vertical anchorage screws 3 with one and anchors, and described support T-steel plate 6 is connected with a lower base 9 through a rotating hinge 8；Described lower base 9 is fixed in same level with the bottom of bridge pier test specimen 11.
From the foregoing, the beneficial effects of the utility model are: use rotating hinge 8 as seismic performance of reinforced concrete bridge piers vertical loading device, the charger avoiding band sliding support is easily generated the impact of frictional force in process of the test, improve test accuracy, the hysteresis loop making bridge pier test specimen 11 more meets truth, and the positive and negative peak load difference of test specimen is less.The vertical loading device using band rotating hinge 8 is applicable to the reinforced concrete knoll/Quintic system of post, pseudo research.
In the present embodiment, described jack 7 is hydraulic jack 7, and described hydraulic jack 7 drives through an oil pump.
In the present embodiment, also include that one for bridge pier test specimen 11 applies the MTS electro-hydraulic servo drive mechanism of horizontal loading, the drive rod of described MTS electro-hydraulic servo drive mechanism is arranged at bridge pier test specimen 11 top side.
In the present embodiment, described power transmission screw rod 2 is respectively symmetrically and is distributed on described counter-force girder steel 1 and supporting steel plate pad 4；Described anchorage screw 3 is respectively symmetrically and is distributed in described counter-force billet 5 and described support T-steel plate 6.
In the present embodiment, described power transmission screw rod 2 and anchorage screw 3 are four, and four power transmission screw rods 2 are respectively arranged at the corner of described counter-force metal mat and fixing with described counter-force girder steel 1 are connected；Four anchorage screws 3 are respectively arranged at the corner of supporting steel plate pad and fixing with described support T-steel plate 6 are connected.
In the present embodiment, the area of described counter-force billet 5 is less than the area of supporting steel backing plate 4, and described anchorage screw 3 is arranged at the outside of described power transmission screw rod 2.
In the present embodiment, the center rotating midpoint and counter-force billet 5 and supporting steel backing plate 4 of described rotating hinge 8 is on same axis.
In the present embodiment, described support T-steel plate 6 is arranged at intervals at the vertical connecting plate 61 below horizontal steel plate 60 from a horizontal steel plate 60 and two, and the lower section of two vertical connecting plates 61 is correspondingly provided with the through hole 610 being connected with described rotating hinge 8.
Below by the utility model is further explained the explanation of the specific implementation process of the present embodiment.
Specific implementation process: counter-force girder steel 1 is connected by power transmission screw rod 2 with counter-force billet 5, supporting steel backing plate 4 is connected by anchorage screw 3 with supporting T-steel plate 6, and bridge pier test specimen 11 top is connected with counter-force girder steel 1 through ganoid ball pivot 10, to transmit vertical load；In test loading procedure, two hydraulic jacks 7 are pressurizeed by control oil pump, and vertical load is reached counter-force girder steel 1 by power transmission screw rod 2 by counter-force metal mat 5 pressurized, then completes the applying of the vertical load to bridge pier test specimen 11 through ball pivot 10；Subsequently, MTS electro-hydraulic servo drive mechanism applies horizontal loading to bridge pier test specimen 11, supports T-steel plate 6 and is anchored with supporting steel plate pad by anchorage screw 3, is connected with lower base 9 by rotating hinge 8, and under the effect of horizontal force, counter-force girder steel 1 rotates around rotating hinge 8.
In sum, the charger for testing seismic performance of reinforced concrete bridge piers that this utility model provides, improves test accuracy, and uses the vertical loading device of band rotating hinge to be applicable to the reinforced concrete knoll/Quintic system of post, pseudo research.
The above-listed preferred embodiment that this utility model provides; the purpose of this utility model, technical scheme and advantage are further described; it is it should be understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (8)
1. the charger being used for testing seismic performance of reinforced concrete bridge piers, it is characterized in that: include one horizontal with bridge pier test specimen above counter-force girder steel, the center of described counter-force girder steel is on same axis with the center of described bridge pier test specimen, and the bottom, middle part of described counter-force girder steel is also rotationally connected at the crown center of described bridge pier test specimen through a ball pivot；The two ends of described counter-force girder steel are positioned at the supporting steel backing plate and below counter-force girder steel through several vertical power transmission screw rods through one respectively and are positioned at the fixing connection of the counter-force billet below counter-force girder steel；Described counter-force billet is provided with a jack, and the top, bottom of described jack is located on described counter-force billet, and the top, top of described jack is located on described supporting steel backing plate；Described supporting steel backing plate is positioned at the support T-steel plate anchoring below counter-force billet through several vertical anchorage screws and one, and described support T-steel plate connects through a rotating hinge and a lower base；Described lower base is fixed in same level with the bottom of bridge pier test specimen.
Charger for testing seismic performance of reinforced concrete bridge piers the most according to claim 1, it is characterised in that: described jack is hydraulic jack, and described hydraulic jack drives through an oil pump.
Charger for testing seismic performance of reinforced concrete bridge piers the most according to claim 1, it is characterized in that: also include one for bridge pier test specimen apply horizontal loading MTS electro-hydraulic servo drive mechanism, the drive rod of described MTS electro-hydraulic servo drive mechanism is arranged at bridge pier test specimen top side.
Charger for testing seismic performance of reinforced concrete bridge piers the most according to claim 1, it is characterised in that: described power transmission screw rod is respectively symmetrically and is distributed on described counter-force girder steel and supporting steel plate pad；Described anchorage screw is respectively symmetrically and is distributed in described counter-force billet and described support T-steel plate.
Charger for testing seismic performance of reinforced concrete bridge piers the most according to claim 4, it is characterized in that: described power transmission screw rod and anchorage screw are four, four power transmission screw rods are respectively arranged at the corner of described counter-force metal mat and fixing with described counter-force girder steel are connected；Four anchorage screws are respectively arranged at the corner of supporting steel plate pad and Interal fixation T-shaped with described support is connected.
Charger for testing seismic performance of reinforced concrete bridge piers the most according to claim 4, it is characterised in that: the area of described counter-force billet is less than the area of supporting steel backing plate, and described anchorage screw is arranged at the outside of described power transmission screw rod.
Charger for testing seismic performance of reinforced concrete bridge piers the most according to claim 1, it is characterised in that: the center rotating midpoint and counter-force billet and supporting steel backing plate of described rotating hinge is on same axis.
Charger for testing seismic performance of reinforced concrete bridge piers the most according to claim 1, it is characterized in that: described support T-steel plate is arranged at intervals at the vertical connecting plate below horizontal steel plate from a horizontal steel plate and two, the lower section of two vertical connecting plates is correspondingly provided with the through hole being connected with described rotating hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620379450.0U CN205620098U (en) | 2016-04-28 | 2016-04-28 | A loading device for testing reinforced concrete bridge pier anti -seismic performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620379450.0U CN205620098U (en) | 2016-04-28 | 2016-04-28 | A loading device for testing reinforced concrete bridge pier anti -seismic performance |
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| CN205620098U true CN205620098U (en) | 2016-10-05 |
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| CN201620379450.0U Withdrawn - After Issue CN205620098U (en) | 2016-04-28 | 2016-04-28 | A loading device for testing reinforced concrete bridge pier anti -seismic performance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865734A (en) * | 2016-04-28 | 2016-08-17 | 福州大学 | Loading device for testing anti-seismic property of reinforced concrete bridge pier and usage method |
| CN108982032A (en) * | 2018-04-26 | 2018-12-11 | 上海市政交通设计研究院有限公司 | A kind of experimental rig and its method suitable for highly seismic region precast assembly bridge pier |
| CN110018045A (en) * | 2019-03-01 | 2019-07-16 | 安徽省交通控股集团有限公司 | A kind of counterforce device for pier stud pseudo-static experimental |
| CN111220369A (en) * | 2020-02-14 | 2020-06-02 | 重庆大学 | Compression loading device and method for large cantilever column |
| CN117516849A (en) * | 2023-12-29 | 2024-02-06 | 长沙市规划设计院有限责任公司 | Bridge beam slab load testing device for road bridge construction |
-
2016
- 2016-04-28 CN CN201620379450.0U patent/CN205620098U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865734A (en) * | 2016-04-28 | 2016-08-17 | 福州大学 | Loading device for testing anti-seismic property of reinforced concrete bridge pier and usage method |
| CN105865734B (en) * | 2016-04-28 | 2018-07-20 | 福州大学 | Loading device for testing seismic performance of reinforced concrete bridge piers and application method |
| CN108982032A (en) * | 2018-04-26 | 2018-12-11 | 上海市政交通设计研究院有限公司 | A kind of experimental rig and its method suitable for highly seismic region precast assembly bridge pier |
| CN110018045A (en) * | 2019-03-01 | 2019-07-16 | 安徽省交通控股集团有限公司 | A kind of counterforce device for pier stud pseudo-static experimental |
| CN110018045B (en) * | 2019-03-01 | 2022-01-28 | 安徽省交通控股集团有限公司 | Counterforce device for pier stud pseudo-static test |
| CN111220369A (en) * | 2020-02-14 | 2020-06-02 | 重庆大学 | Compression loading device and method for large cantilever column |
| CN111220369B (en) * | 2020-02-14 | 2024-01-16 | 重庆大学 | Compression loading device and method for large cantilever column |
| CN117516849A (en) * | 2023-12-29 | 2024-02-06 | 长沙市规划设计院有限责任公司 | Bridge beam slab load testing device for road bridge construction |
| CN117516849B (en) * | 2023-12-29 | 2024-03-15 | 长沙市规划设计院有限责任公司 | Bridge beam slab load testing device for road bridge construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161005 Effective date of abandoning: 20180720 |
|
| AV01 | Patent right actively abandoned |