CN105486274A - Prefabricated assembly type concrete structure seam deformation measurement device - Google Patents

Prefabricated assembly type concrete structure seam deformation measurement device Download PDF

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Publication number
CN105486274A
CN105486274A CN201510992789.8A CN201510992789A CN105486274A CN 105486274 A CN105486274 A CN 105486274A CN 201510992789 A CN201510992789 A CN 201510992789A CN 105486274 A CN105486274 A CN 105486274A
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CN
China
Prior art keywords
displacement meter
angle
base
angle cleat
prefabricated
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CN201510992789.8A
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Chinese (zh)
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CN105486274B (en
Inventor
刘文政
崔士起
刘传卿
石磊
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山东省建筑科学研究院
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
    • G01B21/32Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring the deformation in a solid

Abstract

The invention discloses a prefabricated assembly type concrete structure seam deformation measurement device, belonging to the civil engineering structure test deformation measurement device. The concrete structure seam deformation measurement device comprises a pedestal, connection angles, a bent steel plate, a displacement meter pedestal, a horizontal displacement meter, a vertical displacement meter, a spring clamping sheet and a position limiting buckle. The pedestals comprise an upper pedestal and a lower pedestal; the connection angles comprise an upper connection angle and a lower connection angle; the upper connection angle and the lower connection angle are connected to the upper pedestal and the lower pedestal; the other end of the upper connection angle is connected to a bending steel plate; the other end of the lower connection angle is connected to the displacement meter pedestal; and the displacement meter pedestal is provided with a horizontal displacement meter and a vertical displacement meter. The invention can conveniently, accurately and synchronously measure the relative horizontal sliding displacement between the upper prefabricated member and the lower prefabricated member at the seaming portion in the assembly type concrete structure horizontal loading test and the vertical cracking width, etc.

Description

A kind of prefabricated assembled concrete structure seam deformation measuring device

Technical field

The present invention relates to a kind of civil engineering structure test deformation measuring device, especially a kind of prefabricated assembled concrete structure seam deformation measuring device.

Background technology

Prefabricated concrete structure refers to and at the construction field (site) precast concrete (prefabricated post, precast beam, precast shear wall etc.) is assembled integrally structure by the mode of rear pouring concrete, strength cement-based grouting material.Different from cast-in-place structural, in fabricated construction, vertical prefabricated components are generally starched by seat or the mode of being in the milk connects, and element joints exists horizontal joint.Seam is integrally-built weak link, is the key position affecting structure tension performance.The shear-carrying capacity of horizontal joint and grouting material intensity, faying face roughness, compressive stress and to wear factors such as stitching number of steel bars relevant.Seam stress is different, and the proportion shared by the factor of various Transfer of Shear is different.When effect shearing is less, when cracking does not occur seam, shearing mainly relies on the cohesive action transmission between concrete, larger with the strength relationship of grouting material; When effect shearing is comparatively large, when cracking occurs seam, Shear transfer mainly relies on the friction force of faying face, shear key effect and reinforcing bar dowel action etc.

Present stage, various countries' specification is different to the shear-carrying capacity computing formula of prefabricated components horizontal joint, considers that the proportion shared by various factors is also not identical.In order to have a clear understanding of the ultimate shear load-bearing capacity of vertical prefabricated components horizontal joint in prefabricated concrete structure, and under different stress the distortion of seam crossing and rigidity, propose suitable Shear transfer mechanism and Analysis of Ultimate model, need to carry out horizontal addload test to vertical prefabricated components.In whole test loading procedure, require the relative level slide displacement between the upper and lower prefabricated components in Measurement accuracy horizontal joint place and vertical cracking width.

The practices well measuring the distortion of prefabricated components horizontal joint is the end or the top that displacement meter are placed in respectively upper and lower prefabricated components.In such cases, the data recorded are the absolute displacement on test component end and top, need process further, there is inconvenience during data analysis.In addition, because displacement meter is away from seam, the data finally obtained not are relative level slide displacement on stricti jurise between the upper and lower prefabricated components of seam crossing and vertical cracking width.Therefore, in vertical prefabricated components horizontal addload test, the relative level slide displacement between the upper and lower prefabricated components in abutment joint place and vertical cracking width carry out Measurement accuracy and propose requirement.

Summary of the invention

Technical assignment of the present invention provides a kind of prefabricated assembled concrete structure seam deformation measuring device for above-mentioned deficiency of the prior art, and this kind of prefabricated assembled concrete structure seam deformation measuring device has the advantages that can facilitate, accurately, synchronously measure relative level slide displacement in prefabricated assembled concrete structure level load test between the upper and lower prefabricated components of seam crossing and vertical cracking width.

The technical solution adopted for the present invention to solve the technical problems is: it comprises base, angle cleat, bending steel plate, displacement meter base, horizontal displacement meter, vertical displacement meter, spring card and limit fastener, described base comprises two, be divided into upper bed-plate and lower bottom base, described angle cleat comprises two, be divided into angle cleat and lower angle cleat, described upper bed-plate and lower bottom base are separately fixed at the same side of top prefabricated components and bottom prefabricated components, and close on prefabricated components horizontal joint position, described upper angle cleat is connected with lower bottom base with upper bed-plate respectively by coupling bolt with lower angle cleat, the other end of upper angle cleat is connected with bending steel plate, described bending steel plate is L-type bending steel plate, the other end of lower angle cleat is connected with displacement meter base, described displacement meter base is respectively arranged with horizontal displacement meter and vertical displacement meter, described horizontal displacement meter and vertical displacement meter are fixed on displacement meter base respectively by spring card, displacement meter base on the right side of vertical displacement meter bottom and horizontal displacement meter is respectively arranged with limit fastener.

Described upper bed-plate and lower bottom base comprise angle clip and anchor plate respectively, two angle limbs of described anchor plate and angle clip are respectively arranged with bolt hole, anchor plate fixes through the bolt hole on anchor plate and top prefabricated components and bottom prefabricated components respectively by fixing crab-bolt, and described angle clip passes bolt hole on angle clip and upper angle cleat and lower angle cleat respectively by coupling bolt and fixes.

Described anchor plate fixes respectively by two fixing crab-bolts and top prefabricated components and bottom prefabricated components.

Described upper angle cleat and lower angle cleat and angle clip junction are provided with bar hole, and coupling bolt is each passed through bolt hole and bar hole is fixed.

Described upper angle cleat is fixed by two coupling bolts and bending steel plate, and described lower angle cleat is fixed by a coupling bolt and displacement meter base.

Compared to the prior art a kind of prefabricated assembled concrete structure seam deformation measuring device of the present invention, has following outstanding beneficial effect: simple structure, easy for installation, measure accurately;

Before prefabricated components carry out horizontal addload test, adopt four fixing crab-bolts two bases are separately fixed at upper and lower prefabricated components same side, close on seaming position place, because two bases lay respectively at seam position corresponding up and down, the data that therefore displacement meter measurement obtains are relative level slide displacement between the upper and lower prefabricated components of seam crossing and vertical cracking width;

After base fixedly completes, install the remaining component in this measurement mechanism, the junction of the angle clip of angle cleat end and base is provided with strip hole, can according to the extension elongation of the shape of test component, size and test operation Space adjustment device;

Vertical displacement meter and horizontal displacement meter adopt spring card to be fixed on displacement meter base, by the position regulating slip limit fastener to regulate displacement meter, the sounding rod of two displacement meters is all withstood on L-type bending steel plate, ensures authenticity and the validity of seam level and vertical displacement measurement data.

Accompanying drawing explanation

Fig. 1 is three-dimension integrally structural representation of the present invention;

Fig. 2 is structure side view of the present invention;

Fig. 3 is structure front view of the present invention;

Fig. 4 is structure vertical view of the present invention;

Fig. 5 is base schematic diagram in structure of the present invention;

Fig. 6 adopts measurement mechanism of the present invention to measure schematic diagram on front side of when prefabricated components seam is out of shape in prefabricated assembled concrete structure level load test;

Fig. 7 adopts measurement mechanism of the present invention to measure schematic side view when prefabricated components seam is out of shape in prefabricated assembled concrete structure level load test;

Description of reference numerals: 1 bending steel plate, 2 displacement meter bases, 3 horizontal displacement meters, 4 vertical displacement meters, 5 spring cards, 6 limit fasteners, 71 upper bed-plates, 72 lower bottom bases, 711 angle clips, 712 anchor plates, 713 bolts hole, 714 fixing crab-bolts, angle cleat on 81,82 times angle cleats, 91 top prefabricated components, 92 bottom prefabricated components, 10 prefabricated components horizontal joints, 11 coupling bolts, 12 bar holes.

Embodiment

With reference to Figure of description 1 to accompanying drawing 7, a kind of prefabricated assembled concrete structure seam deformation measuring device of the present invention is described in detail below.

A kind of prefabricated assembled concrete structure seam deformation measuring device of the present invention, its structure comprises base, angle cleat, bending steel plate 1, displacement meter base 2, horizontal displacement meter 3, vertical displacement meter 4, spring card 5 and limit fastener 6, described base comprises two, be divided into upper bed-plate 71 and lower bottom base 72, described angle cleat comprises two, be divided into angle cleat 81 and lower angle cleat 82, described upper bed-plate 71 and lower bottom base 72 are separately fixed at the same side of top prefabricated components 91 and bottom prefabricated components 92, and close on prefabricated components horizontal joint 10 position, described upper angle cleat 81 is connected with lower bottom base 72 with upper bed-plate 71 respectively by coupling bolt 11 with lower angle cleat 82, the other end of upper angle cleat 81 is connected with bending steel plate 1, described bending steel plate 1 is L-type bending steel plate, the other end of lower angle cleat 82 is connected with displacement meter base 2, described displacement meter base 2 is respectively arranged with horizontal displacement meter 3 and vertical displacement meter 4, described horizontal displacement meter 3 and vertical displacement meter 4 are fixed on displacement meter base 2 respectively by spring card 5, displacement meter base 2 on the right side of vertical displacement meter 4 bottom and horizontal displacement meter 3 is respectively arranged with limit fastener 6.

Described upper bed-plate 71 and lower bottom base 72 comprise angle clip 711 and anchor plate 712 respectively, two angle limbs of described anchor plate 712 and angle clip 711 are respectively arranged with bolt hole 713, anchor plate 712 fixes with top prefabricated components 91 and bottom prefabricated components 92 through the bolt hole 713 on anchor plate 712 respectively by fixing crab-bolt 714, and described angle clip 711 fixes with upper angle cleat 81 and lower angle cleat 82 through the bolt hole 713 on angle clip 711 respectively by coupling bolt 11.

Described anchor plate 712 fixes with top prefabricated components 91 and bottom prefabricated components 92 respectively by two fixing crab-bolts 714.

Described upper angle cleat 81 and lower angle cleat 82 are provided with bar hole 12 with angle clip 711 junction, and coupling bolt 11 is each passed through bolt hole 713 and bar hole 12 is fixed.

Described upper angle cleat 81 is fixed by two coupling bolts 11 and bending steel plate 1, and described lower angle cleat 82 is fixed by a coupling bolt 11 and displacement meter base 2.

Before carrying out horizontal addload to the vertical prefabricated components in prefabricated assembled concrete structure, fixing crab-bolt 714 is adopted upper bed-plate 71 and lower bottom base 72 to be separately fixed at the side of top prefabricated components 91 and bottom prefabricated components 92, to close on prefabricated components horizontal joint 10 position.Then upper angle cleat 81 is connected with upper bed-plate 71 and lower bottom base 72 by coupling bolt 11 respectively with lower angle cleat 82.Junction is provided with strip hole 12, according to the extension elongation of the shape of test component, size and test operation Space adjustment measurement mechanism.Upper angle cleat 81 is by the fixing bending steel plate 1 of two coupling bolts 11, and horizontal displacement meter 3 and vertical displacement meter 4, by a coupling bolt 11 fixed displacement meter base 2, adopt spring card 5 to be fixed on displacement meter base 2 by lower angle cleat 82.Regulate slip limit fastener 6, the sounding rod of horizontal displacement meter 3 and vertical displacement meter 4 is all withstood on L-type bending steel plate 1.

Embodiment cited is above only for understanding the present invention's; it is not the restriction to technical scheme described in the invention; the those of ordinary skill of related fields; on the basis of technical scheme described in claim; can also make multiple change or distortion, all equivalent changes or distortion all should be encompassed within claims of the present invention.The present invention does not describe part in detail, is the known technology of those skilled in the art of the present technique.

Claims (5)

1. a prefabricated assembled concrete structure seam deformation measuring device, it is characterized in that: comprise base, angle cleat, bending steel plate, displacement meter base, horizontal displacement meter, vertical displacement meter, spring card and limit fastener, described base comprises two, be divided into upper bed-plate and lower bottom base, described angle cleat comprises two, be divided into angle cleat and lower angle cleat, described upper bed-plate and lower bottom base are separately fixed at the same side of top prefabricated components and bottom prefabricated components, and close on prefabricated components horizontal joint position, described upper angle cleat is connected with lower bottom base with upper bed-plate respectively by coupling bolt with lower angle cleat, the other end of upper angle cleat is connected with bending steel plate, the other end of lower angle cleat is connected with displacement meter base, described displacement meter base is respectively arranged with horizontal displacement meter and vertical displacement meter, described horizontal displacement meter and vertical displacement meter are fixed on displacement meter base respectively by spring card, displacement meter base on the right side of vertical displacement meter bottom and horizontal displacement meter is respectively arranged with limit fastener.
2. a kind of prefabricated assembled concrete structure seam deformation measuring device according to claim 1, it is characterized in that: described upper bed-plate and lower bottom base comprise angle clip and anchor plate respectively, two angle limbs of described anchor plate and angle clip are respectively arranged with bolt hole, anchor plate fixes through the bolt hole on anchor plate and top prefabricated components and bottom prefabricated components respectively by fixing crab-bolt, and described angle clip passes bolt hole on angle clip and upper angle cleat and lower angle cleat respectively by coupling bolt and fixes.
3. a kind of prefabricated assembled concrete structure seam deformation measuring device according to claim 2, is characterized in that: described anchor plate fixes respectively by two fixing crab-bolts and top prefabricated components and bottom prefabricated components.
4. a kind of prefabricated assembled concrete structure seam deformation measuring device according to claim 2, it is characterized in that: described upper angle cleat and lower angle cleat and angle clip junction are provided with bar hole, and coupling bolt is each passed through bolt hole and bar hole is fixed.
5. a kind of prefabricated assembled concrete structure seam deformation measuring device according to claim 1, it is characterized in that: described upper angle cleat is fixed by two coupling bolts and bending steel plate, and described lower angle cleat is fixed by a coupling bolt and displacement meter base.
CN201510992789.8A 2015-12-24 2015-12-24 A kind of prefabricated assembled concrete structure seam deformation measuring device CN105486274B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106482701A (en) * 2016-08-30 2017-03-08 国网北京市电力公司 A kind of method that Deformation Monitoring stitches both sides agent structure sliding deformation amount
CN110906865A (en) * 2019-11-04 2020-03-24 北京城建设计发展集团股份有限公司 Prefabricated component seam width measurement and calibration method based on multipoint cooperation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260810A (en) * 1984-06-07 1985-12-24 Shimizu Constr Co Ltd Shearing displacement gauge
CN201764956U (en) * 2010-09-17 2011-03-16 中建商品混凝土成都有限公司 Positioning device for measuring concrete expansion and contraction deformation by using noncontact method
CN202734754U (en) * 2012-07-12 2013-02-13 俞博 Sensor for measuring hinged seam shearing deformation
CN203239757U (en) * 2013-03-13 2013-10-16 洛阳轴研科技股份有限公司 Turntable bearing with angular displacement monitoring device
CN103528719A (en) * 2013-10-31 2014-01-22 华北水利水电大学 Integrality quick detection method for assembly type bridge
CN205246050U (en) * 2015-12-24 2016-05-18 山东省建筑科学研究院 Measuring device is warp to prefabricated prefabricated concrete structure seam

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260810A (en) * 1984-06-07 1985-12-24 Shimizu Constr Co Ltd Shearing displacement gauge
CN201764956U (en) * 2010-09-17 2011-03-16 中建商品混凝土成都有限公司 Positioning device for measuring concrete expansion and contraction deformation by using noncontact method
CN202734754U (en) * 2012-07-12 2013-02-13 俞博 Sensor for measuring hinged seam shearing deformation
CN203239757U (en) * 2013-03-13 2013-10-16 洛阳轴研科技股份有限公司 Turntable bearing with angular displacement monitoring device
CN103528719A (en) * 2013-10-31 2014-01-22 华北水利水电大学 Integrality quick detection method for assembly type bridge
CN205246050U (en) * 2015-12-24 2016-05-18 山东省建筑科学研究院 Measuring device is warp to prefabricated prefabricated concrete structure seam

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106482701A (en) * 2016-08-30 2017-03-08 国网北京市电力公司 A kind of method that Deformation Monitoring stitches both sides agent structure sliding deformation amount
CN106482701B (en) * 2016-08-30 2019-06-25 国网北京市电力公司 A kind of method of Deformation Monitoring seam two sides main structure sliding deformation amount
CN110906865A (en) * 2019-11-04 2020-03-24 北京城建设计发展集团股份有限公司 Prefabricated component seam width measurement and calibration method based on multipoint cooperation

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Effective date of registration: 20200818

Address after: 250031 Shandong Province Flyover District of Ji'nan City Road 29.

Patentee after: Shandong Academy of Building Science Co.,Ltd.

Address before: 250031 Shandong Province Flyover District of Ji'nan City Road 29.

Patentee before: SHANDONG PROVINCIAL ACADEMY OF BUILDING RESEARCH