CN105424396A - Cast-in-place simple supported bridge static load test device - Google Patents
Cast-in-place simple supported bridge static load test device Download PDFInfo
- Publication number
- CN105424396A CN105424396A CN201510953447.5A CN201510953447A CN105424396A CN 105424396 A CN105424396 A CN 105424396A CN 201510953447 A CN201510953447 A CN 201510953447A CN 105424396 A CN105424396 A CN 105424396A
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- China
- Prior art keywords
- cast
- bridge
- pier
- test device
- reaction beam
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Bridges Or Land Bridges (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a bridge static load test device, and particularly relates to a cast-in-place simple supported bridge static load test device. The test device comprises a jack, a reaction beam, vertical pull rods and pier clasping devices, wherein the reaction beam is positioned above a test bridge body, the jack is positioned between the reaction beam and the test bridge body, and the pier clasping devices are positioned below pier caps of supporting piers at two ends of the test bridge body; the vertical pull rods are arranged at two ends of the reaction beam, and are respectively connected with two groups of clasping devices. The pier clasping devices are positioned below the pier caps, the lengths of the vertical pull rods are not changed along with the heights of the piers, and all field assembly operations can be performed on the bridge, so the construction environment under the bridge has no effect. The test device is simple in structure and convenient to assemble.
Description
Technical field
The present invention relates to a kind of bridge static loading test device, refer in particular to a kind of cast-in-place concrete free beam static-load testing device.
Background technology
No. CN104990754A patent document discloses a kind of cast-in-place concrete free beam static-load testing device, utilizes existing bridge pier to provide counter-force, thus realizes carrying out static test to cast-in-place concrete free beam at the construction field (site).But this device has following shortcoming:
1, its reaction frame is made up of baroque girder truss, therefore complex structure, with high costs.
2, for high pier occasion, the vertical connecting rod of this device needs to do very long, and Assembling difficulty is very large, and the total deformation that vertical connecting rod general extension value and this device are formed is excessive, likely exceedes the stroke loading lifting jack.
3, for the occasion being not suitable for operation under bridge, be river, valley under such as bridge, this device cannot use.
Summary of the invention
Technical matters to be solved by this invention is exactly for above-mentioned defect, provides a kind of structure simple, easy to assembly, and the cast-in-place concrete free beam do not limited by operation field under any bridge carries out the device of static test.
The present invention is achieved by the following technical solutions: a kind of cast-in-place free beam static-load testing device, comprise lifting jack, reaction beam, vertical connecting rod and bridge pier enclasp device, described reaction beam is positioned at above test beam, lifting jack is between reaction beam and test beam, and bridge pier enclasp device is positioned at the pier cap bottom of test beam two supports bridge pier; Reaction beam two ends are provided with vertical connecting rod, and respectively with two groups of enclasp devices are connected.
Described bridge pier enclasp device comprises anchor ear, and the periphery of anchor ear is surrounded by more than two steel bands, and there is armed lever at the two ends of enclasp device, and described armed lever one end is connected with steel band, and the other end is connected with vertical connecting rod.
Described reaction beam is the girder truss that universal rod body assembles.
Described reaction beam is box beam.
Bridge static loading test device provided by the present invention, because its bridge pier enclasp device is positioned at below pier cap, the length of vertical connecting rod can not change along with the height of bridge pier, and all Assembling work can be carried out on bridge floor, therefore, not by the restriction of construction environment under bridge.Structure is simple, and easy to assembly, cost is lower.
Below in conjunction with accompanying drawing, the present invention is described in further detail
Accompanying drawing explanation
Fig. 1 is the perspective view of cast-in-place free beam static-load testing device of the present invention.
Fig. 2 is the front view of cast-in-place free beam static-load testing device of the present invention.
Fig. 3 is the side view of cast-in-place free beam static-load testing device of the present invention.
Fig. 4 is the structural representation of bridge pier enclasp device of the present invention.
Fig. 5 is the structural representation of anchor ear periphery steel band of the present invention and armed lever.
Fig. 6 is the schematic diagram that anchor ear of the present invention and bridge pier combine.
Fig. 7 is the structural representation of anchor ear of the present invention.
Fig. 8 is the vertical view of anchor ear of the present invention and steel band.
Wherein: 1. lifting jack; 2. counter-force girder truss; 3. lifting jack crossbeam; 4. entablature; 5. vertical connecting rod; 6. armed lever; 7. anchor ear; 8. test beam; 9. bridge pier; 10. skid prevention rubber sheet and voussoir; 11, steel band.
Embodiment
As shown in FIG. 1 to 3, cast-in-place free beam static-load testing device of the present invention, comprise lifting jack 1, counter-force girder truss 2, vertical connecting rod 5 and bridge pier enclasp device, test beam 8 two ends are placed with entablature 4, two counter-force girder trusses 2 are placed on two ends entablature 4 respectively, counter-force girder truss 2 bottom is provided with lifting jack crossbeam 3, and lifting jack 1 is between lifting jack crossbeam 3 and test beam 8, and bridge pier enclasp device is positioned at the pier cap bottom of test beam body 8 two ends bridge pier 9; Entablature 4 two ends are provided with vertical connecting rod 5, and respectively with two groups of enclasp devices are connected.
As shown in Fig. 4 ~ Fig. 8, described bridge pier enclasp device comprises anchor ear 7, and the inner circumferential of anchor ear 7 is provided with skid prevention rubber sheet and voussoir 10, the periphery of anchor ear 7 is surrounded by three steel bands 11, the two ends of anchor ear 7 are provided with armed lever 6, and described armed lever 6 one end is connected with steel band 11, and the other end is connected with described vertical connecting rod 5.
Technique scheme adopts closing force system self-equilibrating principle, and namely lifting jack 1 loads acting force and static-load testing device reacting force homeostasis in same closing force system.Core technology is pier counter-force, namely adopts anchor ear device, utilizes bridge pier 9 to provide trial load counter-force.
Counter-force girder truss 2 described in the present embodiment adopts universal rod body to form, and is applicable to the various various criterion spans of bridge.Often organize counter-force girder truss 2 and also can adopt box beam or other Structure composing.
Claims (4)
1. a cast-in-place free beam static-load testing device, comprise lifting jack, reaction beam, vertical connecting rod and bridge pier enclasp device, described reaction beam is positioned at above test beam, and lifting jack, between reaction beam and test beam, is characterized in that bridge pier enclasp device is positioned at the pier cap bottom of test beam two ends bridge pier; Reaction beam two ends are provided with vertical connecting rod, and respectively with two groups of enclasp devices are connected.
2. cast-in-place free beam static-load testing device as claimed in claim 1, it is characterized in that described bridge pier enclasp device comprises anchor ear, the periphery of anchor ear is surrounded by more than two steel bands, and there is armed lever at the two ends of enclasp device, described armed lever one end is connected with steel band, and the other end is connected with vertical connecting rod.
3. cast-in-place free beam static-load testing device as claimed in claim 1 or 2, is characterized in that described reaction beam is the girder truss that universal rod body assembles.
4. cast-in-place free beam static-load testing device as claimed in claim 1 or 2, is characterized in that described reaction beam is box beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953447.5A CN105424396A (en) | 2015-12-21 | 2015-12-21 | Cast-in-place simple supported bridge static load test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953447.5A CN105424396A (en) | 2015-12-21 | 2015-12-21 | Cast-in-place simple supported bridge static load test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105424396A true CN105424396A (en) | 2016-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510953447.5A Pending CN105424396A (en) | 2015-12-21 | 2015-12-21 | Cast-in-place simple supported bridge static load test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105424396A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340185A (en) * | 2017-06-22 | 2017-11-10 | 北京华横新技术开发公司 | A kind of bridge static loading test pre-stressed steel pipe concrete self-balancing type static test bed |
| CN110231213A (en) * | 2019-07-24 | 2019-09-13 | 北京华横科技有限公司 | A kind of bridge static loading test platform |
| CN112051079A (en) * | 2020-08-02 | 2020-12-08 | 中交第四公路工程局有限公司 | Bridge girder erection machine load test method |
Citations (10)
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|---|---|---|---|---|
| RU2097731C1 (en) * | 1994-06-10 | 1997-11-27 | Конструкторское бюро транспортного машиностроения | Device for testing the bridging mechanism of bridge laying machine |
| CN2342365Y (en) * | 1998-11-05 | 1999-10-06 | 孙金更 | Self balance test table for prestress assembling spar |
| RU2244070C1 (en) * | 2003-04-24 | 2005-01-10 | Хабаровский государственный технический университет | Inverter device for testing of tubular piles of four-shell bridge seat by static load |
| CN202002842U (en) * | 2011-01-20 | 2011-10-05 | 武汉远通路桥物资有限公司 | Pin-joint truss type static load test device |
| CN202041361U (en) * | 2011-03-09 | 2011-11-16 | 武汉希萌工程咨询有限公司 | Static load test-bed of terrestrial anchor pile self-balanced bridge |
| CN202382726U (en) * | 2011-12-26 | 2012-08-15 | 吉林建筑工程学院 | Strain testing system of composite beams |
| CN203729209U (en) * | 2013-12-30 | 2014-07-23 | 中铁大桥局股份有限公司 | Hoop corbel |
| CN203929418U (en) * | 2014-06-30 | 2014-11-05 | 武汉希萌科技有限公司 | A kind of universal counter-force supporting leg type railway bridge static loading test stand |
| CN104990754A (en) * | 2015-08-03 | 2015-10-21 | 孙金更 | Simple-supported cast-in-place girder static load testing device |
| CN205246364U (en) * | 2015-12-21 | 2016-05-18 | 孙金更 | Cast -in -place simple beam static test device |
-
2015
- 2015-12-21 CN CN201510953447.5A patent/CN105424396A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2097731C1 (en) * | 1994-06-10 | 1997-11-27 | Конструкторское бюро транспортного машиностроения | Device for testing the bridging mechanism of bridge laying machine |
| CN2342365Y (en) * | 1998-11-05 | 1999-10-06 | 孙金更 | Self balance test table for prestress assembling spar |
| RU2244070C1 (en) * | 2003-04-24 | 2005-01-10 | Хабаровский государственный технический университет | Inverter device for testing of tubular piles of four-shell bridge seat by static load |
| CN202002842U (en) * | 2011-01-20 | 2011-10-05 | 武汉远通路桥物资有限公司 | Pin-joint truss type static load test device |
| CN202041361U (en) * | 2011-03-09 | 2011-11-16 | 武汉希萌工程咨询有限公司 | Static load test-bed of terrestrial anchor pile self-balanced bridge |
| CN202382726U (en) * | 2011-12-26 | 2012-08-15 | 吉林建筑工程学院 | Strain testing system of composite beams |
| CN203729209U (en) * | 2013-12-30 | 2014-07-23 | 中铁大桥局股份有限公司 | Hoop corbel |
| CN203929418U (en) * | 2014-06-30 | 2014-11-05 | 武汉希萌科技有限公司 | A kind of universal counter-force supporting leg type railway bridge static loading test stand |
| CN104990754A (en) * | 2015-08-03 | 2015-10-21 | 孙金更 | Simple-supported cast-in-place girder static load testing device |
| CN205246364U (en) * | 2015-12-21 | 2016-05-18 | 孙金更 | Cast -in -place simple beam static test device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340185A (en) * | 2017-06-22 | 2017-11-10 | 北京华横新技术开发公司 | A kind of bridge static loading test pre-stressed steel pipe concrete self-balancing type static test bed |
| CN110231213A (en) * | 2019-07-24 | 2019-09-13 | 北京华横科技有限公司 | A kind of bridge static loading test platform |
| CN110231213B (en) * | 2019-07-24 | 2024-05-28 | 北京华横科技有限公司 | Bridge static load test stand |
| CN112051079A (en) * | 2020-08-02 | 2020-12-08 | 中交第四公路工程局有限公司 | Bridge girder erection machine load test method |
| CN112051079B (en) * | 2020-08-02 | 2022-09-09 | 中交第四公路工程局有限公司 | Bridge girder erection machine load test method |
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Application publication date: 20160323 |