CN102297685B - Positioning frame for measuring length of pre-fabricated bridge - Google Patents
Positioning frame for measuring length of pre-fabricated bridge Download PDFInfo
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- CN102297685B CN102297685B CN 201110134604 CN201110134604A CN102297685B CN 102297685 B CN102297685 B CN 102297685B CN 201110134604 CN201110134604 CN 201110134604 CN 201110134604 A CN201110134604 A CN 201110134604A CN 102297685 B CN102297685 B CN 102297685B
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Abstract
For solving the positioning problem of measuring the length of a bridge with a precise instrument, the invention provides a positioning frame for measuring the length of a pre-fabricated bridge, comprising a base plate which is a T-shaped structure comprising a horizontal side and a vertical side, a prism mounting hole arranged at the front end of the vertical side, and a boss arranged at the front end of the vertical side, wherein, the boss has a bevel inner side to form a knife edge structure to let the knife edge contact with the end surface of the bridge when being used. The base plate is provided with foundation bolts and magnets, and the top and bottom surfaces of the front end of the vertical side are provided with a round level bubble respectively. The positioning frame for measuring the length of the pre-fabricated bridge disclosed in the invention can be used for measuring the length of upper portion and lower portion of the bridge with convenient use, and can greatly improve the measurement accuracy, with the advantages of simple structure, easy process and low cost.
Description
Technical field
The present invention relates to a kind of locating rack, specifically is a kind of precast bridge total length measurement and positioning frame.
Background technology
The measurement of precast bridge total length is an important indicator of precast bridge quality testing, and this index need be measured between the bridge both upper ends thereof size between size and two ends, bottom.Measured this index, all be to adopt manual work to draw 50m steel ruler and tautness meter to measure in the past, manual control pulling force and range estimation reading.Therefore there are problems such as operating difficulties (dysstasia when particularly measuring upper dimension) and precision be relatively poor.For addressing these problems, will adopt exact instrument to measure, will solve instrument to a problem and adopt exact instrument to measure.
Summary of the invention
The objective of the invention is to solve with exact instrument measure overall length of bridge to a problem, a kind of precast bridge total length measurement and positioning frame is provided.
Address the above problem, a kind of precast bridge total length measurement and positioning frame of the present invention comprises a substrate, the T shape structure that substrate is made up of horizontal edge and vertical edge, and the prism mounting hole is located at the vertical edge front end.
During use, this locating rack is placed on the bridge floor of bridge two ends, regulates making it be in horizontality, mounting plane prism on the prism mounting hole, the good total powerstation of frame in suitable place, bridge side, the measuring prism coordinate is through calculating the overall length of bridge measurement result.
For the stability that increases locating rack and improve to measure accuracy, be provided with boss at the front end of vertical edge, the boss inboard is the inclined-plane, forms an edge of a knife structure, makes the edge of a knife contact bridge beam-ends face during use.
Precast bridge total length measurement and positioning frame of the present invention; The total length that can be used for the bridge upper and lower is measured; Break through the conventional way that in the past adopted steel ruler and tautness meter to measure the precast bridge total length, initiative has designed precast bridge total length measurement and positioning frame, for the total station survey overall length of bridge provides a frock; Both convenient the use improved measuring accuracy again greatly.Set up total powerstation one time, can measure the total length of multi-disc (hole) bridge, improved testing efficient greatly.Overall length of bridge measurement and positioning shelf structure is simple, is easy to processing, and cost drops into low.At present, fundamental construction such as state-owned railroads, highway are carried out just on a large scale, have a large amount of precast bridges to need to detect.Therefore, the development of this locating rack has great practical value and wide promotion prospect.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is user mode figure on the bridge floor.
Fig. 3 is user mode figure under the bridge floor.
Among the figure, 1-horizontal edge, 2-vertical edge, 3-prism mounting hole, 4-boss, 5-foot-screw, 6-magnet, 7-circle air level, 8-bridge end face, the pre-buried bearing steel plate of 9-, 10-plane prism.
Embodiment
A kind of precast bridge total length measurement and positioning frame of the present invention comprises a substrate, the T shape structure that substrate is made up of horizontal edge 1 and vertical edge 2, and prism mounting hole 3 is located at the vertical edge front end.Substrate is a T-steel system member, and horizontal edge is interior during use, and vertical edge is outside.On the pre-buried bearing steel plate that T type vertical edge length dimension is designed to make horizontal edge ride over the bridge bottom surface, the horizontal edge length dimension is with the vertical edge length dimension.
The front end of vertical edge is provided with boss 4, and boss 4 inboards are the inclined-plane, form an edge of a knife structure.Boss 4 is that the vertical edge end is a thickening position, and an inclined-plane is processed in inboard, its underpart, forms edge of a knife shape, contacts precast bridge end face 8 with this edge of a knife during use.Plane prism mounting hole 3 is arranged on the edge of a knife outside, and this hole is penetrating circular hole, and the distance between its center and the edge of a knife is A.
Foot-screw 5 and magnet 6 are housed on the substrate.A foot-screw 5 is housed respectively on the symmetric position at horizontal edge 1 two ends, a foot-screw 5 is housed on the vertical edge 2, foot-screw is used for regulating the locating rack level.
A magnet 6 is housed respectively on the symmetric position at horizontal edge 1 two ends, a magnet 6 is housed on the vertical edge 2.Anyhow be embedded with three strong magnets on the limit altogether, be used for when measuring bridge bottom total length, locating rack being adsorbed on the pre-buried bearing steel plate 9.But the magnet that is provided with make locating rack both forward be used in and measure bridge top total length size, can oppositely use again, be adsorbed on and be used for measuring bridge bottom total length size on the pre-buried bearing steel plate, realized a multipotency.
The upper and lower surfaces of vertical edge 2 front ends respectively is equipped with a round air level 7, is used for judging whether level of locating rack, regulates foot-screw 5 and makes the bubble of round air level 7 between two parties can the leveling locating rack.The levelling device that is provided with all is in horizontality when locating rack is used at every turn, has guaranteed the accuracy of measurement data.
Two locating racks are formed a cover and are used, and the total length that can be used for the bridge upper and lower is measured.
1. bridge top total length is measured
1) two precast bridge total length measurement and positioning frame edges of a knife are positioned over respectively on the bridge floor of bridge two ends down, the running fix frame makes edge of a knife contact bridge beam-ends face 8.
2) regulating foot-screw 5 makes locating rack be in horizontality.
3) on prism mounting hole 3, install plane prism 10.
4) the good total powerstation of frame in suitable place, bridge side, the measuring prism coordinate.
5) the overall length of bridge measurement result is calculated
Overall length of bridge=measured value-2A
2. bridge bottom total length is measured
1) two precast bridge total length measurement and positioning frame edges of a knife are positioned over respectively on the bottom surface, bridge two ends up, the magnet 6 on the locating rack is adsorbed on the pre-buried base steel plate, the running fix frame makes edge of a knife contact bridge beam-ends face.
2) regulating foot-screw 5 makes locating rack be in horizontality.
3) on prism mounting hole 3, install plane prism 10.
4) the good total powerstation of frame in suitable place, bridge side, the measuring prism coordinate.
5) the overall length of bridge measurement result is calculated
Overall length of bridge=measured value-2A
Claims (1)
1. a precast bridge total length measurement and positioning frame is characterized in that: comprise a substrate, the T shape structure that substrate is made up of horizontal edge (1) and vertical edge (2); The mounting hole of plane prism (3) is located at the vertical edge front end, and the front end of vertical edge is provided with boss (4), and boss (4) inboard is the inclined-plane; Form an edge of a knife structure; This edge of a knife contact precast bridge end face (8) during use, the mounting hole of plane prism (3) is arranged on the edge of a knife outside, and this hole is penetrating circular hole; Foot-screw (5) and magnet (6) are housed on the substrate; On the symmetric position at horizontal edge (1) two ends a foot-screw (5) is housed respectively, a foot-screw (5) is housed on the vertical edge (2), on the symmetric position at horizontal edge (1) two ends a magnet (6) is housed respectively; A magnet (6) is housed on the vertical edge (2), and the upper and lower surfaces of vertical edge (2) front end respectively is equipped with a round air level (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110134604 CN102297685B (en) | 2011-05-24 | 2011-05-24 | Positioning frame for measuring length of pre-fabricated bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110134604 CN102297685B (en) | 2011-05-24 | 2011-05-24 | Positioning frame for measuring length of pre-fabricated bridge |
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| Publication Number | Publication Date |
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| CN102297685A CN102297685A (en) | 2011-12-28 |
| CN102297685B true CN102297685B (en) | 2012-10-31 |
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| CN 201110134604 Active CN102297685B (en) | 2011-05-24 | 2011-05-24 | Positioning frame for measuring length of pre-fabricated bridge |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103744164A (en) * | 2013-11-29 | 2014-04-23 | 中交第二航务工程局有限公司 | Adsorption type prism and high-accuracy embedded part installation construction monitoring method |
| CN107268446B (en) * | 2017-07-27 | 2023-01-17 | 中铁大桥局集团有限公司 | Cable-stayed bridge tower beam synchronous construction measuring device and measuring method thereof |
| CN109352019B (en) * | 2018-11-19 | 2019-09-24 | 青岛海西重机有限责任公司 | A kind of crane walking equalizer bar axis hole processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005104997A2 (en) * | 2004-04-16 | 2005-11-10 | Depuy Spine, Inc. | Intervertebral disc with monitoring and adjusting capabilities |
| CN2809592Y (en) * | 2005-05-18 | 2006-08-23 | 沈阳铁路局苏家屯轨距尺厂 | Laser positioning level ruler for roadbed |
| CN202057306U (en) * | 2011-05-24 | 2011-11-30 | 中铁三局集团有限公司 | Prefabricated bridge full length measuring positioning frame |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160457A (en) * | 1996-12-03 | 1998-06-19 | Nkk Corp | Horizontal collimation apparatus |
| CN201434650Y (en) * | 2009-07-13 | 2010-03-31 | 中铁三局集团有限公司 | Positioning bracket for mould jaw distance measurement of high speed railway CRTS II type track slab |
| CN201680819U (en) * | 2010-05-18 | 2010-12-22 | 中交第四航务工程局有限公司 | Prism positioning device of electronic total station |
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2011
- 2011-05-24 CN CN 201110134604 patent/CN102297685B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005104997A2 (en) * | 2004-04-16 | 2005-11-10 | Depuy Spine, Inc. | Intervertebral disc with monitoring and adjusting capabilities |
| CN2809592Y (en) * | 2005-05-18 | 2006-08-23 | 沈阳铁路局苏家屯轨距尺厂 | Laser positioning level ruler for roadbed |
| CN202057306U (en) * | 2011-05-24 | 2011-11-30 | 中铁三局集团有限公司 | Prefabricated bridge full length measuring positioning frame |
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| CN102297685A (en) | 2011-12-28 |
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