CN103558099B - Bending torsion test loading device for steel tube concrete pile - Google Patents
Bending torsion test loading device for steel tube concrete pile Download PDFInfo
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- CN103558099B CN103558099B CN201310498074.8A CN201310498074A CN103558099B CN 103558099 B CN103558099 B CN 103558099B CN 201310498074 A CN201310498074 A CN 201310498074A CN 103558099 B CN103558099 B CN 103558099B
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- steel tube
- concrete pile
- tube concrete
- torsion test
- loading device
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Abstract
The invention discloses a bending torsion test loading device for a steel tube concrete pile. According to the bending torsion test loading device for the steel tube concrete pile, two problems that the bending moment condition is not ideal and simple, and the rotation of the steel tube concrete pile is not ideal when the torque is applied in a previous bending torsion test are solved. The bending torsion test loading device comprises two tension jacks, tension sensors, a connection joint, steel wire ropes, round groove discs, a fixed hinge support, a sliding hinge support, two counterforce pillars and rotation supports, wherein the rotation supports are mounted on the fixed hinge support and the sliding hinge support respectively; the two tension jacks are mounted on the outer sides of the two counterforce pillars respectively and located on different sides of the round groove discs on two ends of the steel tube concrete pile; the top ends of the tension jacks are provided with the tension sensors; the tension sensors are connected with the steel wire ropes which are wound on the round groove discs through connection joints. Due to the adoption of the bending torsion test loading device for the steel tube concrete pile, bending torsion test results of the steel tube concrete pile fit with finite element analysis results well. Meanwhile, the bending torsion test loading device for the steel tube concrete pile also has the characteristics of convenience in assembly and recyclability.
Description
Technical field
The present invention relates to civil engineering work structural test technical field, specifically its a kind of steel core concrete column bending experiment loading unit.
Background technology
In civil engineering work; concrete filled steel tube is used as the newel etc. of the bridge pier of the framework corner post of buildings, the shaped form bridge of highway and skew bridge, the column of offshore production platform, the pylon of apron and spiral stairway; under the effect such as wind load and earthquake; except by except axle pressure and moment of flexure, still there is the acting in conjunction of moment of torsion.Although concrete filled steel tube is simultaneously actually rare in Practical Project by situation that is curved and that turned round, the serviceability of research bending component, can contribute to turning round the understanding of cutting component performance to pressure bending component with press-bending, therefore it has necessity of further investigation.
The test of current Study on Steel pipe concrete column bending is less, and main cause is that charger is difficult to realize, and friction force is comparatively large when moment of flexure applies and between steel core concrete column, and impact is rotated; When moment of torsion applies, Changing Pattern is non-constant, can only be similar to value, and test findings and Finite element analysis results gap are comparatively large, better can not instruct engineering practice.
Summary of the invention
Object of the present invention be exactly solve above-mentioned experiment loading unit be difficult to realize problem, provide a kind of one-piece construction simple, easy to assembly, can be recycled, particularly test figure steel core concrete column bending accurately experiment loading unit.
The object of the present invention is achieved like this.Steel core concrete column bending experiment loading unit comprises pulling jack, pulling force sensor, connector, wire rope, groove disk, fixed-hinged support, sliding hinge bearing, counter-force pier and rotating stand.It is characterized in that: two counter-force piers fix on the ground, fixed-hinged support and sliding hinge bearing are separately fixed on two counter-force piers, respectively rotating stand is housed above fixed-hinged support and sliding hinge bearing, two pulling jack are arranged on the outside of two counter-force piers respectively, be positioned at the heteropleural of steel core concrete column two ends groove disk, pulling force sensor is equipped with on the top of pulling jack, and pulling force sensor is connected with the wire rope be wrapped on groove disk by connector.
The present invention has filled up the blank of steel core concrete column bending experiment loading unit, solve moment of flexure boundary condition in the test of bending be not in the past desirable freely-supported and moment of torsion when applying steel core concrete column be not ideal rotation two large problems, after adopting the present invention, steel core concrete column bending test findings and Finite element analysis results meet well, and the present invention simultaneously also has feature that is easy to assembly, that can be recycled.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Fig. 2 is the front elevation of groove disk of the present invention.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the structural representation of circular columns rotating stand of the present invention.
Fig. 5 is the structural representation of rectangular column rotating stand of the present invention.
Embodiment
Embodiment 1:
During practical application of the present invention, first by test desired spacing, two counter-force piers 8 are fixed on the ground, and fixed-hinged support 6 and sliding hinge bearing 7 that rotating stand 9 is housed are fixed on counter-force pier 8, fixed-hinged support 6 and sliding hinge bearing 7 can ensure that steel core concrete column 10 is by curved boundary condition, the simply-supported state of realizing ideal, rotating stand 9 can ensure steel core concrete column 10 flexible rotating.Steel core concrete column 10 two ends bolt and groove disk 5 link together and are placed on two rotating stands 9, the pulling jack 1 applying moment of flexure and moment of torsion is arranged on the outside of counter-force pier 8, be positioned at the heteropleural of steel core concrete column 10 two ends groove disk 5, pulling force sensor 2 is fixed on the top of pulling jack 1, and is linked together by connector 3 and the wire rope 4 be wrapped on groove disk 5.During work, the groove disk 5 that moment of flexure and moment of torsion load are fixed on steel core concrete column 10 two ends by pulling jack 1 by wire rope 4 tractive applies, and ensures that in whole loading procedure, moment of flexure and torque change rule are constant.Load numerical value is gathered by pulling force sensor 2, then calculates moment of flexure and moment of torsion by acting force arm, obtains test figure.
Embodiment 2:
The present invention is when carrying out rectangular steel-tube concrete column bending test, and can change arc-shaped seat holder 11 into rectangle seat holder 12, other cross sectional shape post is as the same.
Claims (1)
1. a steel core concrete column bending experiment loading unit, it comprises pulling jack, pulling force sensor, connector, wire rope, groove disk, fixed-hinged support, sliding hinge bearing, counter-force pier and rotating stand, it is characterized in that: two counter-force piers (8) fix on the ground, fixed-hinged support (6) and sliding hinge bearing (7) are separately fixed on two counter-force piers (8), steel core concrete column (10) two ends bolt and groove disk (5) link together and are placed on two rotating stands (9), fixed-hinged support (6) and sliding hinge bearing (7) are equipped with rotating stand (9) above respectively, two pulling jack (1) are arranged on the outside of two counter-force piers (8) respectively, be positioned at the heteropleural at steel core concrete column (10) two ends groove disk (5), pulling force sensor (2) is equipped with on the top of pulling jack (1), pulling force sensor (2) is connected with the wire rope (4) be wrapped on groove disk (5) by connector (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498074.8A CN103558099B (en) | 2013-10-22 | 2013-10-22 | Bending torsion test loading device for steel tube concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498074.8A CN103558099B (en) | 2013-10-22 | 2013-10-22 | Bending torsion test loading device for steel tube concrete pile |
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| Publication Number | Publication Date |
|---|---|
| CN103558099A CN103558099A (en) | 2014-02-05 |
| CN103558099B true CN103558099B (en) | 2015-05-13 |
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| CN201310498074.8A Expired - Fee Related CN103558099B (en) | 2013-10-22 | 2013-10-22 | Bending torsion test loading device for steel tube concrete pile |
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| CN105300814A (en) * | 2015-11-11 | 2016-02-03 | 武汉网锐实验室（信息产业光通信产品质量监督检验中心） | Device and method used for bending and torsion tests of optical cable connector box |
| CN105738176A (en) * | 2016-03-07 | 2016-07-06 | 河海大学 | Multifunctional device and method for model test pile foundation processing and detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105300814A (en) * | 2015-11-11 | 2016-02-03 | 武汉网锐实验室（信息产业光通信产品质量监督检验中心） | Device and method used for bending and torsion tests of optical cable connector box |
| CN105300814B (en) * | 2015-11-11 | 2019-02-19 | 武汉网锐检测科技有限公司 | It is a kind of for cable splice closure carry out bending and torsion test device and method |
| CN105738176A (en) * | 2016-03-07 | 2016-07-06 | 河海大学 | Multifunctional device and method for model test pile foundation processing and detection |
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| CN103558099A (en) | 2014-02-05 |
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