CN103791795A - Bridge static load test displacement monitoring device - Google Patents
Bridge static load test displacement monitoring device Download PDFInfo
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- CN103791795A CN103791795A CN201410061228.1A CN201410061228A CN103791795A CN 103791795 A CN103791795 A CN 103791795A CN 201410061228 A CN201410061228 A CN 201410061228A CN 103791795 A CN103791795 A CN 103791795A
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- bridge
- drill rod
- supporting
- test displacement
- spring
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Abstract
The invention provides a bridge static load test displacement monitoring device which comprises a supporting frame, a magnetic meter seat, a spring, a fixed steel chisel, an anchored support and a dial indicator. The supporting frame is connected with a beam bottom of a bridge, the spring is connected with the lower portion of the supporting frame, the lower portion of the spring is connected with an anchored steel chisel, and the anchored steel chisel is connected to the anchored support. The supporting frame is provided with a horizontal supporting structure, and a test head of the dial indicator is connected to the bottom of the supporting structure. The magnetic meter seat is connected with the upper portion of the anchored steel chisel, and the dial indicator is connected to the magnetic meter seat. The stretching direction of the spring and an expansion bolt are in the same vertical face. According to the bridge static load test displacement monitoring device, a position for mounting the magnetic meter seat is provided, the device is easy and convenient to mount, the deflection of a control section of the bridge is fast to measure and is not limited by the bridge bottom terrain, and the bridge static load test displacement monitoring device is convenient to popularize and use.
Description
Technical field
The present invention relates to a kind of bridge static loading experiment displacement monitor, belong to Tunnel Engineering technical field.
Background technology
The security that bridge on highway all will be used bridge in final acceptance of construction and after the several years of being on active service is evaluated, and the method for evaluation normally adopts the method for static test.Bridge static loading test need to be measured monolithic beam and control under standard load the amount of deflection at interface conventionally, and the measurement of amount of deflection need to, by dial gauge, below bridge, be difficult to find the position of a fixing magnetic stand conventionally.
Summary of the invention
The invention provides a kind of bridge static loading experiment displacement monitor, this monitoring device provides the position that magnetic stand is installed, and this device simple installation makes the measurement of Bridge control cross section amount of deflection fast and not be subject to the restriction of landform at the bottom of bridge.
For solving above technical matters, the invention provides following technical scheme: a kind of bridge static loading test displacement monitor, at the bottom of Bridge Beam, centre bottom surface is provided with expansion bolt, described monitoring device line is connected in expansion bolt, it is characterized in that, described monitoring device comprises bracing frame, magnetic stand, spring, fixing drill rod, anchor support and dial gauge, at the bottom of support frame as described above connects Bridge Beam, the below linking springs of bracing frame, the below of spring connects anchoring drill rod, and anchoring drill rod is connected in anchor support; Support frame as described above has the supporting construction of horizontal direction, and the measuring head of dial gauge is connected in this supporting construction bottom; Described anchoring drill rod top connects magnetic stand, and dial gauge connects magnetic stand; The prolonging direction of described spring and expansion bolt are in same vertical plane.
Further, support frame as described above comprises revolving fragment, supporting pieces and supporting wing, and revolving fragment and supporting pieces are upper and lower syndeton, and the mode of connection is for being rotationally connected.
Further, described supporting pieces is connected with supporting wing is vertical, and supporting wing is in level.
Further, the bottom surface of described supporting wing is provided with spherical concave surface, and dial gauge measuring head is connected with spherical concave surface.
Further, described anchoring drill rod has vertical portion and horizontal part, the side of horizontal part in top, vertical portion.
Further, described spring connects anchoring drill rod by steel wire.
Further, described revolving fragment top has connecting hole, and connecting hole is square hole, is provided with screw in square hole, nut is arranged at screw top, and nut is stuck on revolving fragment, screw upper smooth, bottom has screw thread, and the smooth place of revolving fragment and screw is for being rotationally connected, and screw bottom adopts the supporting pieces that is threaded.
This bridge static loading experiment displacement monitor that the present invention relates to, provides the position that magnetic stand is installed, and this device simple installation makes the measurement of Bridge control cross section amount of deflection fast and not be subject to the restriction of landform at the bottom of bridge, is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is bracing frame of the present invention and revolving fragment structural drawing;
Fig. 2 is the present invention and bridge connection layout.
Description of reference numerals
1-revolving fragment; 2-bracing frame; 21-supporting pieces; 22-supporting wing; The spherical concave surface of 23-; 24-connecting hole; 6-spring; 7-anchoring drill rod; 8-magnetic stand; 9-dial gauge; 10-anchor support; At the bottom of 11-Bridge Beam; 12-expansion bolt; 13-steel wire.
Embodiment
As shown in Figure 2, at the bottom of Bridge Beam, centre bottom surface is provided with expansion bolt 12, monitoring device line is connected in expansion bolt 12, described monitoring device comprises bracing frame 2, magnetic stand 8, spring 6, fixing drill rod 7, anchor support 10 and dial gauge 9, at the bottom of support frame as described above 2 connects Bridge Beam, the below linking springs 6 of bracing frame, the below of spring 6 connects anchoring drill rod 7, and anchoring drill rod is connected in anchor support 10; Support frame as described above 2 has the supporting construction of horizontal direction, and bracing frame 2 comprises revolving fragment 1, supporting pieces 21 and supporting wing 22, and revolving fragment 1 is upper and lower syndeton with supporting pieces 21, and the mode of connection is for being rotationally connected.Described supporting construction is supporting wing 22.
The prolonging direction of described spring 6 and expansion bolt 12 are in same vertical plane.
Supporting pieces 21 is connected with supporting wing 22 is vertical, and supporting wing 22 is in level.
The bottom surface of supporting wing 22 is provided with spherical concave surface 23, and dial gauge 9 measuring heads are connected with spherical concave surface 23.
Anchoring drill rod 7 has vertical portion and horizontal part, the side of horizontal part in top, vertical portion, and magnetic stand 8 is fixed on this horizontal part, and the vertical portion of anchoring drill rod 7 is fixedly connected with anchor support 10.When the anchoring of anchoring drill rod, can be according to the surface state at the bottom of Bridge Beam, in the time having ground anchoring condition, anchoring drill rod 7 directly anchoring on the ground, if do not possess ground anchoring condition, should adopt the fixing anchoring drill rod of anchor support 10.
Spring 6 connects anchoring drill rod 7 by steel wire 13.
As shown in Figure 1, revolving fragment 1 top has connecting hole, and connecting hole is square hole, is provided with screw in square hole, nut is arranged at screw top, and nut is stuck on revolving fragment 1, screw upper smooth, bottom has screw thread, and revolving fragment 1 is with the smooth place of screw for being rotationally connected, and screw bottom adopts the supporting pieces 21 that is threaded.
Bracing frame is geological radar antenna backing device, the upper end of revolving fragment 1 is provided with connecting hole, described supporting pieces 21 lower ends are provided with supporting wing 22 and connecting hole, and the top of described supporting wing 22 is provided with spherical concave surface 23, and described revolving fragment 1 and supporting pieces 21 are by being rotatably connected connection.When use, anchoring drill rod 7 is fixed on to the below of controlling cross section, punch and expansion bolt 12 is installed at the control end that cuts section bar, then the connecting hole 24 of spring 6 and bracing frame 2 is connected, then use shorter steel wire 13 linking springs 6 and anchoring drill rod 7, then connect expansion bolt 12 and revolving fragment 1 with steel wire, and make spring 6 in tension state, the elongation of spring should be greater than the amount of deflection in this control cross section, then magnetic stand 8 is installed on anchoring drill rod 7, at spherical concave surface, dial gauge is installed at 23 places, then just can load.
Embodiment of the present invention does not form the restriction to the application's scope; every within the spirit and principle of the present invention design, any modification that one of skill in the art can make, be equal to and replace and within improvement etc. all should be included in protection scope of the present invention.
Claims (7)
1. a bridge static loading test displacement monitor, at the bottom of Bridge Beam, centre bottom surface is provided with expansion bolt, described monitoring device line is connected in expansion bolt, it is characterized in that, described monitoring device comprises bracing frame, magnetic stand, spring, fixing drill rod, anchor support and dial gauge, at the bottom of support frame as described above connects Bridge Beam, and the below linking springs of bracing frame, the below of spring connects anchoring drill rod, and anchoring drill rod is connected in anchor support; Support frame as described above has the supporting construction of horizontal direction, and the measuring head of dial gauge is connected in this supporting construction bottom; Described anchoring drill rod top connects magnetic stand, and dial gauge connects magnetic stand; The prolonging direction of described spring and expansion bolt are in same vertical plane.
2. according to a kind of bridge static loading test displacement monitor described in right 1, it is characterized in that, support frame as described above comprises revolving fragment, supporting pieces and supporting wing, and revolving fragment and supporting pieces are upper and lower syndeton, and the mode of connection is for being rotationally connected.
3. according to a kind of bridge static loading test displacement monitor described in right 2, it is characterized in that, described supporting pieces is connected with supporting wing is vertical, and supporting wing is in level.
4. according to a kind of bridge static loading test displacement monitor described in right 3, it is characterized in that, the bottom surface of described supporting wing is provided with spherical concave surface, and dial gauge measuring head is connected with spherical concave surface.
5. according to a kind of bridge static loading test displacement monitor described in right 1, it is characterized in that, described anchoring drill rod has vertical portion and horizontal part, the side of horizontal part in top, vertical portion.
6. according to a kind of bridge static loading test displacement monitor described in right 1, it is characterized in that, described spring connects anchoring drill rod by steel wire.
7. according to a kind of bridge static loading test displacement monitor described in right 2, it is characterized in that, described revolving fragment top has connecting hole, and connecting hole is square hole, is provided with screw in square hole, nut is arranged at screw top, nut is stuck on revolving fragment, screw upper smooth, and bottom has screw thread, the smooth place of revolving fragment and screw is for being rotationally connected, and screw bottom adopts the supporting pieces that is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061228.1A CN103791795B (en) | 2014-02-24 | 2014-02-24 | Bridge static loading experiment displacement monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061228.1A CN103791795B (en) | 2014-02-24 | 2014-02-24 | Bridge static loading experiment displacement monitor |
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| CN103791795A true CN103791795A (en) | 2014-05-14 |
| CN103791795B CN103791795B (en) | 2017-06-16 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423880A (en) * | 2015-11-10 | 2016-03-23 | 长安大学 | Method for suspending main cable to measure bridge deflection |
| CN105627896A (en) * | 2016-01-12 | 2016-06-01 | 河北远洲工程咨询有限公司 | Bridge flexibility detection device and detection method |
| CN105928447A (en) * | 2016-06-13 | 2016-09-07 | 中冶建筑研究总院有限公司 | Rapid bridge flexibility measuring device |
| CN106908207A (en) * | 2017-03-21 | 2017-06-30 | 西南交通大学 | A kind of bridge static loading test deflection measuring apparatus and method |
| CN111397823A (en) * | 2020-04-28 | 2020-07-10 | 广东众智检验检测有限公司 | Crane static stiffness measuring device and method |
| KR102187875B1 (en) * | 2019-08-14 | 2020-12-07 | 주식회사 홍익기술단 | Deflection Measuring Instruments |
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| CN2898758Y (en) * | 2006-01-12 | 2007-05-09 | 上海大学 | Engineering-structured displacement-deforming measuring apparatus |
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| CN203704829U (en) * | 2014-02-24 | 2014-07-09 | 甘肃省交通科学研究院有限公司 | Bridge static load experiment displacement monitoring device |
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2014
- 2014-02-24 CN CN201410061228.1A patent/CN103791795B/en active Active
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| JP2000171203A (en) * | 1998-12-02 | 2000-06-23 | Ishikawajima Harima Heavy Ind Co Ltd | Deformation measuring instrument for large-size structure |
| KR100585336B1 (en) * | 2006-01-02 | 2006-05-30 | (재) 한국건설품질연구원 | Bridge cantilever safe diagnostic equipment |
| CN2898758Y (en) * | 2006-01-12 | 2007-05-09 | 上海大学 | Engineering-structured displacement-deforming measuring apparatus |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423880A (en) * | 2015-11-10 | 2016-03-23 | 长安大学 | Method for suspending main cable to measure bridge deflection |
| CN105423880B (en) * | 2015-11-10 | 2017-11-24 | 长安大学 | A kind of method for hanging main push-towing rope measurement deflection of bridge span |
| CN105627896A (en) * | 2016-01-12 | 2016-06-01 | 河北远洲工程咨询有限公司 | Bridge flexibility detection device and detection method |
| CN105928447A (en) * | 2016-06-13 | 2016-09-07 | 中冶建筑研究总院有限公司 | Rapid bridge flexibility measuring device |
| CN105928447B (en) * | 2016-06-13 | 2019-08-02 | 中冶建筑研究总院有限公司 | A kind of rapid survey deflection of bridge span device |
| CN106908207A (en) * | 2017-03-21 | 2017-06-30 | 西南交通大学 | A kind of bridge static loading test deflection measuring apparatus and method |
| CN106908207B (en) * | 2017-03-21 | 2019-02-01 | 西南交通大学 | A kind of bridge static loading test deflection measuring apparatus and method |
| KR102187875B1 (en) * | 2019-08-14 | 2020-12-07 | 주식회사 홍익기술단 | Deflection Measuring Instruments |
| CN111397823A (en) * | 2020-04-28 | 2020-07-10 | 广东众智检验检测有限公司 | Crane static stiffness measuring device and method |
| CN111397823B (en) * | 2020-04-28 | 2022-04-01 | 广东众智检验检测有限公司 | Crane static stiffness measuring device and method |
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|---|---|
| CN103791795B (en) | 2017-06-16 |
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Effective date of registration: 20180427 Address after: 730050 No. 809, Gong Lin Road, Qilihe District, Lanzhou, Gansu. Patentee after: Gansu highway engineering quality testing and Testing Center Co., Ltd. Address before: 730000 No. 17 LAN Gong ping North Street, Qilihe District, Lanzhou, Gansu. Patentee before: Gansu Traffic Science Tesearch Institute Co., Ltd. |