CN103674699B - Steel bar mechanics performance field detecting device - Google Patents

Steel bar mechanics performance field detecting device Download PDF

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Publication number
CN103674699B
CN103674699B CN201210319160.3A CN201210319160A CN103674699B CN 103674699 B CN103674699 B CN 103674699B CN 201210319160 A CN201210319160 A CN 201210319160A CN 103674699 B CN103674699 B CN 103674699B
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China
Prior art keywords
base
fixture
detecting
reinforcing bar
steel bar
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CN201210319160.3A
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Chinese (zh)
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CN103674699A (en
Inventor
洪鑫
王志龙
陈可君
王鹏飞
龚朝龙
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昆山市建设工程质量检测中心
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Priority to CN201210319160.3A priority Critical patent/CN103674699B/en
Publication of CN103674699A publication Critical patent/CN103674699A/en
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Publication of CN103674699B publication Critical patent/CN103674699B/en

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Abstract

The invention discloses a kind of steel bar mechanics performance field detecting device, comprise fixture, base and bracing or strutting arrangement, described fixture and base are respectively equipped with coaxial first, two mounting holes, described first, the inside of at least one in two mounting holes is provided with reinforcing bar fixed clamping device, bracing or strutting arrangement can drive fixture along first, two mounting holes axis and base generation relative motion, described fixture and base are two halves dock structure, its interface is positioned at first, on two mounting hole axis, described fixture and base two halves dock structure can be dismantled by securing member and be connected, the adjustable bolt of the hemisphere for canopy brace of encorbelmenting is provided with at base bottom, structure of the present invention is simple, easy to assembly, the reinforcing bar being in various state in engineering can be detected, guarantee the accurate of reinforcing bar testing result in engineering, ensure the quality of engineering construction.

Description

Steel bar mechanics performance field detecting device
Technical field
The present invention relates to a kind of steel bar mechanics performance checkout equipment, particularly a kind of steel bar mechanics performance field detecting device.
Background technology
For xoncrete structure, the mechanical property of reinforcing bar is that it realizes the most important index of load-carrying properties, therefore, detect steel bar mechanics performance is the important means ensureing its quality, according to new edition " concrete structure construction inspection of quality specification " requirement, the reinspection carrying out steel bar mechanics performance is all required to all concrete structure engineerings, especially even more important for adopting the tool joint monitor of welding or mechanical connection.But current displacement detecting is all realized by additional elasticity modulus, this kind of equipment realizes reinforcing bar tensile property test by hydraulic system, there is the function of strict controlled loading speed, but because equipment is heavier, simultaneously on-the-spot reinforcing bar is in actual colligation, and the reinforcing bar had is horizontally disposed, the vertical layout had, even part is oblique layout, and reinforcing bar is longer, also cannot test to scene even if equipment is removed, the mechanics properties testing of therefore all relevant reinforcing bars is all the indoor censorship of requirement, this type inspection for material or factory inspection are significant, this needs the control to checkout equipment environment, and for engineering, meaning is not clearly.In addition, the current shortage due to social credit system, the existing construction material testing requirement of China is that witness sampling detects, whether sample represents maternal authenticity is be difficult to ensure, in addition, for the bar connecting test specimen having joint, detect sample and much do special processing especially, especially welding aspect, the quality of weld joint that Practical Project makes how (directly weld by scene, see photo), but be uncontrollable, simultaneously according to existing reinforcing bar inspection criterion requirement, sample specification and censorship quantity have all done strict regulations, each detection is complete, these detection samples all can only be sent steelworks to and again smelt as waste product, thus cause ample resources waste.Based on this, be necessary the steel bar mechanics performance Site Detection carried out in concrete structure engineering, thus fundamentally control the mechanical property quality of reinforcing bar, the real quality promoting concrete structure engineering, thoroughly stops potential safety hazard.
Summary of the invention
In order to make up above deficiency, the invention provides a kind of steel bar mechanics performance field detecting device, this steel bar mechanics performance field detecting device achieves and loads reinforcing bar at the scene, guarantees the accurate of Engineering detection results.
The present invention in order to the technical scheme solving its technical matters and adopt is: a kind of steel bar mechanics performance field detecting device, comprise fixture, base and bracing or strutting arrangement, described fixture and base are respectively equipped with coaxial first, two mounting holes, described first, the inside of at least one in two mounting holes is provided with reinforcing bar fixed clamping device, bracing or strutting arrangement can drive fixture along first, two mounting holes axis and base generation relative motion, described fixture and base are two halves dock structure, its interface is positioned at first, on two mounting hole axis, described fixture and base two halves dock structure can be dismantled by securing member and be connected, the adjustable bolt of the hemisphere for canopy brace of encorbelmenting is provided with at base bottom.
As a further improvement on the present invention, described bracing or strutting arrangement is at least one lifting jack, and described lifting jack stiff end and base are connected, and motion end and fixture are connected.
As a further improvement on the present invention, described lifting jack is integrated parallel double end lifting jack, the stiff end semicircular in shape structure of described integrated parallel type double end lifting jack, its center of circle is just positioned on first and second mounting hole axis, and two motion end is positioned on semicircular structure relative to first and second mounting hole axisymmetrical.
As a further improvement on the present invention, described integrated parallel type double end lifting jack stiff end and base can be dismantled and be connected, fixture lower end is provided with fixing snap ring, the motion end of described integrated parallel type double end lifting jack can be dismantled and be provided with some cushion blocks, the motion end of lifting jack and on cushion block be inserted in the fixing snap ring of fixture.
As a further improvement on the present invention, first and second mounting hole on described fixture and base is respectively truncated cone hole, the diameter of first and second mounting hole opposite side is less than the diameter of phase dorsal part, reinforcing bar fixed clamping device is lateral surface is truncated cone-shaped that mates with first and second mounting hole, inner side is the face of cylinder of mating with reinforcing bar, and it is squeezed and can produces elastic deformation.
As a further improvement on the present invention, the described reinforcing bar fixed clamping device structure that can produce elastic deformation that is squeezed is: its sidewall is provided with at least one open seam be communicated with in interior outside.
As a further improvement on the present invention, be also provided with a transparent protective shield, described protective cover is fixed on base, and bracing or strutting arrangement and fixture are enclosed in protective cover by protective cover.
As a further improvement on the present invention, the roller that longitudinally height can regulate also is provided with below described base.
Advantageous Effects of the present invention is: the present invention drives the motion of fixture respect thereto by integrated parallel type lifting jack, realize the stretching to reinforcing bar, its structure is simple, easy to assembly, the reinforcing bar being in various state in engineering can be detected, guarantee the accurate of reinforcing bar testing result in engineering, ensure the quality of engineering construction.
Accompanying drawing explanation
Fig. 1 is the first structural principle front view of the present invention;
Fig. 2 is the first structural principle vertical view of the present invention;
Fig. 3 is the second structural principle front view of the present invention;
Fig. 4 is the third structural principle front view of the present invention.
Embodiment
Embodiment: a kind of steel bar mechanics performance field detecting device, comprise fixture 1, base 2 and bracing or strutting arrangement 3, described fixture 1 and base 2 are respectively equipped with coaxial first, two mounting holes 4, 5, described first, two mounting holes 4, the inside of at least one in 5 is provided with reinforcing bar fixed clamping device 6, bracing or strutting arrangement 3 can drive fixture 1 along first, two mounting holes 4, 5 axially there is relative motion with base 2, described fixture 1 and base 2 are two halves dock structure, its interface is positioned at first, two mounting holes 4, on 5 axis, described fixture 1 and base 2 two halves dock structure can be dismantled by securing member 8 and be connected, the adjustable bolt of the hemisphere for canopy brace of encorbelmenting is provided with bottom base 2.During use, first reinforcing bar is set in first of fixture 1 and base 2, two mounting holes 4, fix (for the reinforcing bar being in anchoring status by reinforcing bar fixed clamping device 6 in 5, reinforcing bar fixed clamping device 6 can not be used in the second mounting hole on base 2, general by arranging coaxial perforation respectively on the fixture 1 and base 2 of two halves formula, be arranged in perforation by tightening bolt, then by nut lock, the fixture 1 of two halves formula is closely fixedly connected with into a single integrated structure with base 2 respectively, this kind of structure is easy for removal and installation, even if two ends are all tied fixing reinforcing bar during use, also can be fixed in the one or two mounting hole of fixture 1 and base 2 by quick position, the reinforcing bar that can adapt to on-the-spot any state detects, easy to use, unrestricted, reinforcing bar extends only through the second mounting hole on base 2, in first mounting hole of fixture 1, reinforcing bar fixed clamping device 6 is set and reinforcing bar is clamped, for the reinforcing bar of non-anchored state, or test section from anchorage point remotely time, in second mounting hole of base 2, reinforcing bar fixed clamping device 6 is set, reinforcing bar two ends are all fixed clamping), then fixture 1 is driven to move to away from base 2 direction by bracing or strutting arrangement 3, steel bar stretching certain length is detected its mechanical property, this device structure is simple, be easy to carry, easy to use.
Described bracing or strutting arrangement 3 is at least one lifting jack, described lifting jack stiff end and base 2 are connected, motion end and fixture 1 are connected, it is easy to use, is easy to carry, during use, only need can realize it to lifting jack oiling to move end and stretch out, by fixture 1 jack-up, can also be miscellaneous equipment except lifting jack certainly, as motor drives cam mechanism, screw-nut body etc. by gear train.
Described lifting jack is integrated parallel double end lifting jack, the stiff end semicircular in shape structure of described integrated parallel type double end lifting jack, its center of circle is just positioned at first, two mounting holes 4, on 5 axis, two motion end is relative to first, two mounting holes 4, 5 axisymmetrical are positioned on semicircular structure, the maximum load ability of equipment is made to improve double, thus ensure that the possibility that conventional rebar detects at the scene, and parallel double end lifting jack can guarantee double end synchronization action, all the time ensure that fixture 1 is parallel with base 2, semicircular stiff end can be convenient to realize two motion ends and be symmetrically arranged in first, two mounting holes 4, 5 both sides, be convenient to observe reinforcing bar pulled condition simultaneously.
Described integrated parallel type double end lifting jack stiff end and base 2 can be dismantled and be connected, fixture 1 lower end is provided with fixing snap ring, the motion end of described integrated parallel type double end lifting jack can be dismantled and be provided with some cushion blocks, the motion end of lifting jack and on cushion block be inserted in the fixing snap ring of fixture 1, the fixing snap ring of fixture 1 lower end ensure that the Double Tops of integrated parallel type double end lifting jack can symmetrical load application, thus ensure that the unidirectional axial tension of reinforcing bar, the length of the adjustable tension reinforcement section of cushion block, thus achieve the requirement meeting specification by the length examining reinforcing bar, cushion block can certainly do not had, this is the shortest reinforcing bar detection case, also cushion block can be arranged between lifting jack stiff end and base 2, this is the equivalent replacement of this patent.
On described fixture 1 and base 2 first, two mounting holes 4, 5 are respectively truncated cone hole, first, two mounting holes 4, the diameter of 5 opposite sides is less than the diameter of phase dorsal part, reinforcing bar fixed clamping device 6 for lateral surface is and first, two mounting holes 4, 5 truncated cone-shaped of mating, inner side is the face of cylinder of mating with reinforcing bar, it is squeezed and can produces elastic deformation, when bracing or strutting arrangement 3 makes fixture 1 stretch away from base 2 pairs of reinforcing bars, reinforcing bar fixed clamping device 6 is just along first, two mounting holes 4, 5 move to the opposite end that diameter is little, such reinforcing bar fixed clamping device 6 is just subject to first, two mounting holes 4, 5 radial compression distortion, its inside diameter reduces thereupon, reinforcing bar is tightly clamped, except this kind of device can also be jaw clamping or by fixed forms such as pin are fixedly connected with.
Described reinforcing bar fixed clamping device 6 structure that can produce elastic deformation that is squeezed is: its sidewall is provided with at least one open seam be communicated with in interior outside, when bracing or strutting arrangement 3 makes fixture 1 stretch away from base 2 pairs of reinforcing bars, reinforcing bar fixed clamping device 6 just moves along first and second mounting hole 4,5 to the opposite end that diameter is little, the open seam of such reinforcing bar fixed clamping device 6 is extruded closes up, its inside diameter is reduced reinforcing bar is tightly clamped, this structure is also convenient to the installation of reinforcing bar, easy to use.
Also be provided with a transparent protective shield; described protective cover is fixed on base 2; bracing or strutting arrangement 3 and fixture 1 are enclosed in protective cover by protective cover, prevent reinforcing bar break in testing process injury around testing staff, be also convenient to testing staff's Real Time Observation steel bar stretching state simultaneously.
Also be provided with the roller 7 that longitudinally height can regulate below described base 2, roller 7 generally adopts universal wheel relatively good, and the general adjustment adopting bolt regulative mode to realize roller 7 height, to adapt to the out-of-flatness state of field ground.

Claims (8)

1. a steel bar mechanics performance field detecting device, it is characterized by: comprise fixture (1), base (2) and bracing or strutting arrangement (3), described fixture (1) and base (2) are respectively equipped with coaxial first, two mounting holes (4, 5), described first, two mounting holes (4, 5) inside of at least one in is provided with reinforcing bar fixed clamping device (6), bracing or strutting arrangement (3) can drive fixture (1) along first, two mounting holes (4, 5) axially there is relative motion with base (2), described fixture (1) and base (2) are two halves dock structure, its interface is positioned at first, two mounting holes (4, 5) on axis, described fixture (1) and base (2) two halves dock structure can be dismantled by securing member (8) and be connected, the adjustable bolt of the hemisphere for canopy brace of encorbelmenting is provided with in base (2) bottom.
2. steel bar mechanics performance field detecting device according to claim 1, it is characterized by: described bracing or strutting arrangement (3) is at least one lifting jack, described lifting jack stiff end and base (2) are connected, and motion end and fixture (1) are connected.
3. steel bar mechanics performance field detecting device according to claim 2, it is characterized by: described lifting jack is integrated parallel double end lifting jack, the stiff end semicircular in shape structure of described integrated parallel type double end lifting jack, its center of circle is just positioned on first and second mounting hole (4,5) axis, and two motion end is positioned on semicircular structure relative to first and second mounting hole (4,5) axisymmetrical.
4. steel bar mechanics performance field detecting device according to claim 3, it is characterized by: described integrated parallel type double end lifting jack stiff end and base (2) can be dismantled and be connected, fixture (1) lower end is provided with fixing snap ring, the motion end of described integrated parallel type double end lifting jack can be dismantled and be provided with some cushion blocks, the motion end of lifting jack and on cushion block be inserted in the fixing snap ring of fixture (1).
5. steel bar mechanics performance field detecting device according to claim 1, it is characterized by: first and second mounting hole (4,5) on described fixture (1) and base (2) is respectively truncated cone hole, the diameter of first and second mounting hole (4,5) opposite side is less than the diameter of phase dorsal part, reinforcing bar fixed clamping device (6) for lateral surface be truncated cone-shaped that mates with first and second mounting hole (4,5), inner side is the face of cylinder of mating with reinforcing bar, and it is squeezed and can produces elastic deformation.
6. steel bar mechanics performance field detecting device according to claim 4, is characterized by: described reinforcing bar fixed clamping device (6) structure that can produce elastic deformation that is squeezed is: its sidewall is provided with at least one open seam be communicated with in interior outside.
7. steel bar mechanics performance field detecting device according to claim 1; it is characterized by: be also provided with a transparent protective shield; described protective cover is fixed on base (2), and bracing or strutting arrangement (3) and fixture (1) are enclosed in protective cover by protective cover.
8. the steel bar mechanics performance field detecting device according to claim 1 or 7, is characterized by: described base (2) below is also provided with the roller (7) that longitudinally height can regulate.
CN201210319160.3A 2012-08-31 2012-08-31 Steel bar mechanics performance field detecting device CN103674699B (en)

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CN103674699B true CN103674699B (en) 2016-01-13

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CN104297054B (en) * 2014-10-15 2016-10-19 东南大学 A kind of FRP of research muscle tensile property linearly anchor auxiliary device
CN104697858B (en) * 2015-03-23 2017-12-01 深圳大学 A kind of reinforcing bar constitutive relation experimental rig and method
CN105527181B (en) * 2015-12-31 2018-03-06 中冶建筑研究总院有限公司 A kind of stirrup buckling strength test device
CN106124312A (en) * 2016-06-01 2016-11-16 内蒙古科技大学 The performance testing device of reinforcing bar and concrete and method
CN108088748B (en) * 2017-12-18 2019-04-05 中国矿业大学 A kind of the steel strand wires pull-out test device and application method of integral retaining

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825657A1 (en) * 1988-07-28 1990-02-01 Doelling Rudolf Testing device for tensile bars
WO1999065648A1 (en) * 1998-06-15 1999-12-23 Gühring, Jörg Device for measuring pulling-in force
CN2689218Y (en) * 2004-04-13 2005-03-30 山东建筑工程学院 Portable intelligent reinforcing bar strength measuring equipments
JP2005314995A (en) * 2004-04-30 2005-11-10 Fujikawa Kenzai Kogyo Kk Site work management method and automobile for managing site work
CN201096680Y (en) * 2007-09-04 2008-08-06 秭归县建设工程质量监督检测站 Supporting roller interval positioning device for reinforced steel cold bending test of universal material tester
CN101839829A (en) * 2010-02-24 2010-09-22 北汽福田汽车股份有限公司 Device and method for detecting strength of welding spots
CN102393329A (en) * 2011-11-16 2012-03-28 浙江建设职业技术学院 Test device for time varying mechanical properties of column under load-environment coupling effect
CN202814792U (en) * 2012-08-31 2013-03-20 昆山市建设工程质量检测中心 Field testing device for mechanical properties of reinforcing steel bar

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825657A1 (en) * 1988-07-28 1990-02-01 Doelling Rudolf Testing device for tensile bars
WO1999065648A1 (en) * 1998-06-15 1999-12-23 Gühring, Jörg Device for measuring pulling-in force
CN2689218Y (en) * 2004-04-13 2005-03-30 山东建筑工程学院 Portable intelligent reinforcing bar strength measuring equipments
JP2005314995A (en) * 2004-04-30 2005-11-10 Fujikawa Kenzai Kogyo Kk Site work management method and automobile for managing site work
CN201096680Y (en) * 2007-09-04 2008-08-06 秭归县建设工程质量监督检测站 Supporting roller interval positioning device for reinforced steel cold bending test of universal material tester
CN101839829A (en) * 2010-02-24 2010-09-22 北汽福田汽车股份有限公司 Device and method for detecting strength of welding spots
CN102393329A (en) * 2011-11-16 2012-03-28 浙江建设职业技术学院 Test device for time varying mechanical properties of column under load-environment coupling effect
CN202814792U (en) * 2012-08-31 2013-03-20 昆山市建设工程质量检测中心 Field testing device for mechanical properties of reinforcing steel bar

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