CN104931368A - Horizontal apparatus for component post seismic test - Google Patents

Horizontal apparatus for component post seismic test Download PDF

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Publication number
CN104931368A
CN104931368A CN201510377116.1A CN201510377116A CN104931368A CN 104931368 A CN104931368 A CN 104931368A CN 201510377116 A CN201510377116 A CN 201510377116A CN 104931368 A CN104931368 A CN 104931368A
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CN
China
Prior art keywords
flange
ball pivot
test
bracket
flange bracket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510377116.1A
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Chinese (zh)
Inventor
陈梦成
袁方
王超
张凡孟
黄宏
许开成
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East China Jiaotong University
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East China Jiaotong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by East China Jiaotong University filed Critical East China Jiaotong University
Priority to CN201510377116.1A priority Critical patent/CN104931368A/en
Publication of CN104931368A publication Critical patent/CN104931368A/en
Pending legal-status Critical Current

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Abstract

The present invention discloses a horizontal apparatus for component post seismic test. The apparatus comprises three parallel flange brackets and two groups of pull rods, and each group comprises four pull rods. The flange brackets are connected and fixed by four isometric pull rods. A jack is fixed in the middle of the flange brackets to pass axial force, and make the whole apparatus in a bearing self-balance state. The central part of the component post is connected to an MTS actuator through an adjustable connector adapter board. The apparatus has the advantages that: spherical hinge is used to easily fix a test piece and reduces the adverse impact caused by processing error, so as to avoid bias caused by conventional flat panel hinge. The apparatus has the advantages of simple structure, easiness to operate, less test space occupation and low requirements on the test apparatus.

Description

Component column seismic testing horizontal type device
Technical field
Under the present invention relates to a kind of lasting Structure Under Axial Compression, beam, post component, by the simulation test device of curved scissors effect, are particularly useful for the occasion of steel core concrete column by low cycling loads test under lasting shaft pressuring load, belong to field of civil engineering.
Background technology
Concrete filled steel tube, as a kind of new composite structure, has given full play to steel construction and thus concrete respective mechanical characteristic is widely applied.China is earthquake-prone countries, and earthquake brings huge loss to China every year, and therefore the research of concrete filled steel tube antidetonation seems extremely important.And the limitation that traditional vertical test unit has it certain.One is in traditional vertical structure post seismic testing, and every root test specimen has to be needed to build a rectangular parallelepiped bearing, and when test specimen is more, workload is huge, and test specimen makes complicated, and test operation is inconvenient.Two is in traditional vertical structure post seismic testing, higher to the requirement of laboratory equipment, must have counter force wall, firmly geosyncline must be had to carry out anchoring.May not possess above-mentioned test condition in some laboratory, and above-mentioned experimental provision makes difficulty, expensive, be not easy to make at short notice.
Summary of the invention
The object of the invention is to solve the existing vertical test unit problem high to experimental facilities requirement, traditional horizontal test device is improved, provide a kind of structure simple, easy to operate, account for the test unit that test space is low to testing equipment requirement less.
Technical scheme of the present invention is: a kind of component column seismic testing horizontal type device, comprises three pieces of parallel flange brackets and two groups of pull bars, often organizes four, pull bar.Described flange bracket is fixedly connected by four isometric pull bars, force self-balanced frame system in forming.Be welded with a vertical backing plate bottom described flange bracket, backing plate upper shed, make whole device be fixed on flooring by ground anchor bolt.The flange bracket center in left side is welded with the hold-down support end of a ball pivot, is connected with test component by the movable end of ball pivot; The movable end of described ball pivot has a projection circular shape latch by the middle of test component side, and have the circular groove of a corresponding size in the middle of the cover plate of test component, the movable part of ball pivot is closely connected by this latch with test component.Its middle weldering one smooth sleeve pipe and screw rod of middle flange bracket, the inner of screw rod is welded with the stiff end of ball pivot, and screw rod has nut, and rotating nut can make ball pivot seat rotate, and reaches the object of pretension test component.The middle fixing lifting jack of flange bracket that is middle and right side by sleeve pipe and screw rod transmitter shaft power, and makes whole device be in small axial dimension state.Fixture is fixed on the middle part of experimental member by being connected with MTS actuator with adjustable card extender.
The invention has the advantages that: structure is simple, easy to operate, reduces the adverse effect brought by test specimen mismachining tolerance, accounts for the test unit that test space is low to testing equipment requirement less.
Accompanying drawing explanation
Fig. 1 is component column seismic testing horizontal type device structural representation of the present invention;
Fig. 2 a is the spherical hinge structure schematic diagram of component column seismic testing horizontal type device of the present invention;
Fig. 2 b is the ball pivot side view of component column seismic testing horizontal type device of the present invention;
Fig. 3 a is the front elevation of component column seismic testing horizontal type device of the present invention;
Fig. 3 b is the side view of component column seismic testing horizontal type device of the present invention;
Fig. 4 a is the front elevation of the flange bracket of component column seismic testing horizontal type device of the present invention;
Fig. 4 b is the side view of the flange bracket of component column seismic testing horizontal type device of the present invention;
Fig. 4 c is the rear view of the flange bracket of component column seismic testing horizontal type device of the present invention;
Fig. 5 a is the front elevation of the flange bracket 3 of component column seismic testing horizontal type device of the present invention;
Fig. 5 b is the side view of the flange bracket 3 of component column seismic testing horizontal type device of the present invention.
In figure
1 flange bracket, 2 flange brackets, 3 flange brackets, 4 pull bars, 5 pull bars, 6 ball pivots, 7 sleeve pipes and screw rod, 8 anchor holes, 9 lifting jack, 10 fixtures, 11 adjustable card extenders, 12MTS actuator.
Embodiment
Below in conjunction with Figure of description, further specific descriptions are done to technical scheme of the present invention:
The low cycling loads test unit of structural column, comprise three pieces of flange brackets 1,2,3, two groups of pull bars 4,5, by fixing test specimen 13 to ball pivot 6, by being fixed on the middle lifting jack 9 of flange bracket 2,3 to adjustment screw rod applied thrust, reach effect test specimen 13 being applied to axle power.Draw thin pull bar by change-over panel to be connected with fixture 10, fixture is closely fixed on test specimen by bolt.
Fig. 2 is side and the front schematic view of ball hinged support, and in two sub-sections, bearing part, and movable part, seat part is divided into a spherical concave surface to ball pivot 6, and movable part is a sphere.There is the latch of a circle in the middle of the movable part back side, be connected with test specimen by test specimen two end cover plate interstitial hole.
Fig. 3 is front and the side schematic view of flange bracket 1, and the base containing ball pivot in the middle of the front of flange bracket 1, there is the connecting hole of 4 cylinder lever connecting rods 4 four angular direction in front.
Fig. 4 is side, front and the schematic rear view of flange bracket 2, the front schematic view of flange bracket 2 and the similar of flange bracket 1, there is smooth sleeve pipe centre but leaves the onesize hole of sleeve pipe, and the cavity of pull bar is left at 4 angles, and there is the hole leaving joint flange support 2,3 pull bar in 4 directions.Flange bracket 2 viewed from the back side, is all welded with reinforcement between its reserved hole, can improves overall intensity.
Fig. 5 is front and the side schematic view of flange bracket 3, and this plate simple structure, only leaves the hole of 4 pull bar steady braces.
In tested, the first oil return of lifting jack, is changed the position of spill hinged-support, puts into test specimen from the side, then move sleeve pipe, the ball pivot on both sides and test specimen are just in time coincide by twisting nut, carry out pretension and fix test specimen.Assembling fixture again, makes fixture and test specimen combine closely, and fixture and MTS actuator are connected.
When test specimen and device connect, refuel to lifting jack, now test specimen is subject to the predetermined shaft power that nut transmission comes.Operate MTS actuator on request after case, apply to move in circles load by the load mechanism of regulation.
Finally, it is also to be noted that component column of the present invention comprises reinforced column and steel core concrete column.Above example is only a typical example, and also have many distortion, all distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all should think protection scope of the present invention.
The present invention is the device that a kind of model configuration post carries out low cycling loads test under axial compression condition.Comprise parallel flange bracket, pull bar, ball pivot, sleeve and screw rod, adjusting rotation fishplate bar, connect the fixture of MTS actuator.
Described flange bracket is large by two pieces, one piece little.Two pieces of large flange brackets and pull bar form similar traditional Horizontal axle laminated structure device.The flange bracket of one piece little is same with the flange bracket of middle reinforcement to be connected by pull bar.Middle placement lifting jack, forms axle force loading device.
The framed structure being made up of interior stress balance two pieces of large flange brackets and pull bar described in this device, all be welded with one vertical with flange bracket bottom its flange bracket, flat board parallel to the ground, this flat board leaves mounting groove, facilitate geosyncline anchoring, the position of whole device can be fixed like this.
Ball pivot described in this device is made up of a fixing ball hinged support and a movable spherical hinge.Movable ball pivot and test specimen surface of contact are a plane, and there is the projecting pin of a circle centre, and test specimen cover plate central is processed with an onesize pilot hole, forms a latch structure, is connected with component.
Middle reinforcing flange support described in this device is middle a circular cavity, is placed with a circle, the sleeve pipe of undersized and screw rod in the middle of cavity.Screw rod is welded with ball hinged support at placement test specimen end, and screw rod, at placement lifting jack end in contact lifting jack, makes lifting jack apply axle power by sleeve pipe to test specimen.
The adjustment screw rod that this device rotates and concave surface ball pivot seat can regulate the horizontal level of concave surface ball pivot seat by the nut rotation be installed on screw rod, realize pretension and fix test specimen.
The fixture of the centre described in this device, is connected by the bolt on four angles by upper and lower two cover plates.Two cover plates centres can be placed with square or circular cushion block and corresponding test specimen is fixed.
Fixture described in this device is connected with MTS actuator with card extender by bolt.Change grip to adjust the position to fixture after the installation of MTS actuator.
The low cycling loads test of structural column described in this experiment under certain axial compression, by the screw rod transmitter shaft power in the lifting jack pushing sleeve pipe of side to test specimen, is connected with MTS actuator with adjustable card extender by fixture, applies Cyclic Loading to test specimen.

Claims (1)

1. a component column seismic testing horizontal type device, it is characterized in that, comprise three pieces of parallel flange brackets (1, 2, 3) and two groups of pull bars (4, 5), often organize four, pull bar, flange bracket (1, 2) and pull bar (4) composition one in force self-balanced frame system, described flange bracket (1, 2) be fixedly connected by four isometric pull bars (4), described flange bracket (2, 3) be fixedly connected by four isometric pull bars (5), flange bracket (2, 3) and pull bar (5) composition one in force self-balanced frame system, described flange bracket (1, 2) bottom is welded with a vertical backing plate, backing plate upper shed (8), whole device is made to be fixed on flooring by ground anchor bolt, described flange bracket (1) center is welded with the hold-down support end of a ball pivot (6), be connected with test component by the movable end of ball pivot (6), the movable end of described ball pivot (6) its by having a projection circular shape latch in the middle of test component side, the circular groove of a corresponding size is had in the middle of the cover plate of test component, the movable part of ball pivot (6) is closely connected by this latch with test component, there are a smooth sleeve pipe and screw rod (7) in its centre of described flange bracket (2), the inner of screw rod is welded with the stiff end of ball pivot (6), screw rod there is nut, rotating nut can make ball pivot seat rotate, flange bracket (2, 3) in the middle of, fixing lifting jack (9) is by the screw rod transmitter shaft power in sleeve pipe, fixture (10) is fixed on the middle part of experimental member by being connected with MTS actuator with adjustable card extender (11).
CN201510377116.1A 2015-07-02 2015-07-02 Horizontal apparatus for component post seismic test Pending CN104931368A (en)

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CN201510377116.1A CN104931368A (en) 2015-07-02 2015-07-02 Horizontal apparatus for component post seismic test

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Application Number Priority Date Filing Date Title
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CN104931368A true CN104931368A (en) 2015-09-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105547859A (en) * 2016-01-21 2016-05-04 华南理工大学 Experiment device and method for simulating situation that natural gas pipeline bears vibration and bending moment load
CN110608863A (en) * 2019-11-05 2019-12-24 曲禄好 Civil engineering structure shock resistance test device
CN111579266A (en) * 2020-05-22 2020-08-25 西安建筑科技大学 Static test device for researching collapse resistance of three-layer plane frame beam column structure

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN105547859A (en) * 2016-01-21 2016-05-04 华南理工大学 Experiment device and method for simulating situation that natural gas pipeline bears vibration and bending moment load
CN110608863A (en) * 2019-11-05 2019-12-24 曲禄好 Civil engineering structure shock resistance test device
CN110608863B (en) * 2019-11-05 2021-01-01 曲禄好 Civil engineering structure shock resistance test device
CN111579266A (en) * 2020-05-22 2020-08-25 西安建筑科技大学 Static test device for researching collapse resistance of three-layer plane frame beam column structure

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