CN103207096A - Vertical load loading device for shear wall - Google Patents
Vertical load loading device for shear wall Download PDFInfo
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- CN103207096A CN103207096A CN2013100908661A CN201310090866A CN103207096A CN 103207096 A CN103207096 A CN 103207096A CN 2013100908661 A CN2013100908661 A CN 2013100908661A CN 201310090866 A CN201310090866 A CN 201310090866A CN 103207096 A CN103207096 A CN 103207096A
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- shear wall
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- vertical load
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Abstract
The invention discloses a vertical load loading device for a shear wall. The vertical load loading device comprises a shear wall test piece, a polyfluortetraethylene plate, a bearing plate with concave holes on the top portion, more than five hydraulic jacks of the same specification, an antidumping net rack, pulleys and adjusting bolts which are in a counter-force system. The bearing plate with the concave holes on the top portion is arranged on the top portion of the shear wall test piece, the adjusting bolts are arranged on the left side and the right side of the bearing plate, the hydraulic jacks are arranged in the concave holes of the bearing plate and fixed through the antidumping net rack, the hydraulic jacks are connected in series through an oil pipe and connected with a hydraulic oil source and a pressure stabilizing system, the pulleys are arranged on the top portions of the hydraulic jacks, and the top portions of the pulleys are contacted with the polyfluortetraethylene plate at the bottom of a counter-force beam. The vertical load loading device is simple in structure, convenient to detach, suitable for exerting of vertical constant load during hysteresis performance testing of the shear wall test piece.
Description
Technical field
The present invention relates to the vertical constant load charger of a kind of shear wall, belong to the concrete construction field.
Background technology
In the field of civil engineering, shear wall is as the main lateral resistant member of structure, the important channel that to study its hysteresis performance be the research structure anti-seismic performance, and at present in the test of research concrete shear force wall hysteresis performance, the axial compression ratio of the shear wall ratio of area of section and concrete axial compressive strength product (the vertical axis pressure of shear wall with) is generally all fixed, be that vertical load is constant, vertical force mainly is to load by hydraulic jack, and the shortcoming that existing apparatus exists is when under vertical uniform load q sidesway taking place along with body of wall, hydraulic jack can not keep the payload values of fixing, and lacks the antifriction system between hydraulic jack and the self-equilibrating counter-force loading frame.
Summary of the invention
The present invention is directed to when under horizontal loads sidesway taking place along with body of wall, hydraulic jack can not keep the problem of the payload values of fixing, and a kind of shear wall vertical load charger is provided.
In order to realize above-mentioned technical matters, the present invention by the following technical solutions.A kind of shear wall vertical load charger, comprise by being positioned at by column, the counter-force crossbeam, shear wall test specimen in the self-equilibrating counter-force loading frame that bottom girder is formed, polyfluortetraethylene plate, the top has the loading plate of shrinkage pool, the antidumping rack, hydraulic jack, pulley, regulate bolt, hydraulic oil source, voltage-stabilizing system, oil pipe, the shear wall test specimen is placed on the bottom girder, shear wall test specimen top is equipped with loading plate, two sides are equipped with the adjusting bolt about loading plate, the hydraulic jack that specification more than five is identical is cascaded by oil pipe and links to each other with hydraulic oil source and voltage-stabilizing system, the top of loading plate is provided with a plurality of shrinkage pools corresponding with hydraulic jack, the slightly larger in diameter of shrinkage pool is in the diameter of hydraulic jack, hydraulic jack is placed in the shrinkage pool of loading plate, the antidumping rack be fixed on whole hydraulic jack around, the top of hydraulic jack is equipped with pulley, the bottom of counter-force crossbeam is equipped with polyfluortetraethylene plate, by regulating hydraulic jack pulley is contacted with polyfluortetraethylene plate.
Beneficial effect is as follows.
1, among the present invention owing to there is the identical hydraulic jack of specification more than five all to have voltage-stabilizing system, and the top shrinkage pool of loading plate and antidumping rack cooperatively interact and fix hydraulic jack, even also can guarantee constant loading force when shear wall generation sidesway.Can decide according to different situations in this programme and use several hydraulic jack, the increase of hydraulic jack number is very easily; In general, the number of hydraulic jack is more many, and effect is more good.
2, between the bottom of counter-force crossbeam and pulley the antifriction parts are installed, when body of wall generation sidesway, the effect of antifriction parts is exactly the friction force that reduces between pulley and the counter-force crossbeam.Using polyfluortetraethylene plate as the antifriction parts, mainly is characteristics such as it has weatherability, highly lubricates, does not adhere to, nonhazardous.
3, loading plate two sides are equipped with the adjusting bolt.The use of regulating bolt can make loading plate be installed on the axis of shear wall, makes shear wall stressed evenly.Can certainly make shear wall bear eccentric load by regulating bolt.
4, this device assembling is simple, and easy to operate, it is less to test required instrument.
Description of drawings
Fig. 1 is the synoptic diagram of vertical charger.
Fig. 2 is the hydraulic jack connection diagram.
Fig. 3 is self-equilibrating counter-force loading frame device synoptic diagram.
Fig. 4 is load plate device synoptic diagram.
Reference numeral is as follows: 1, column; 2, counter-force crossbeam; 3, bottom girder; 4, polyfluortetraethylene plate; 5, loading plate; 6, antidumping rack; 7, hydraulic jack; 8, pulley; 9, shear wall; 10, regulate bolt; 11, hydraulic oil source; 12, voltage-stabilizing system; 13, oil pipe; 14, high-strength bolt; 15, earth anchor bolt.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done explanation in further detail.
For sake of convenience, hereinafter alleged " left side " " right side " " on " left and right, the upper and lower of D score and accompanying drawing itself is to consistent, but structure of the present invention do not played the restriction effect.
Below in conjunction with accompanying drawing, the present invention is elaborated:
Shown in Fig. 1,2,3,4.Bottom girder 3 is fixedly mounted on the terrace by earth anchor bolt 15, two root posts 1 are connected on the bottom girder 3 by high-strength bolt 14, counter-force crossbeam 2 is fixedly mounted on two root posts by high-strength bolt 14, forms self-equilibrating counter-force loading frame by column 1, counter-force crossbeam 2, bottom girder 3.Shear wall test specimen 9 is placed on the bottom girder 3.Loading plate 5 is designed to inverted U, blocks the shear wall test specimen.Two sides are equipped with and regulate bolt 10 about loading plate 5.The top of loading plate 5 is provided with shrinkage pool, the shape of shrinkage pool is identical with the bottom of hydraulic jack 7, the number of shrinkage pool determines that according to the quantity of the hydraulic jack 7 of placing shrinkage pool can be through hole or blind hole, and the purpose of doing like this is in order to fix hydraulic jack 7.Loading plate 5 is placed on the top of shear wall test specimen 9, regulates the relative position that bolt 10 is used for regulating shear wall 9 and loading plate 5; A plurality of hydraulic jack 7 are placed in the shrinkage pool at loading plate 5 tops, and a plurality of hydraulic jack 7 are installed in series together with hydraulic oil source 11 and voltage-stabilizing system 12.Antidumping rack 6 is fixed on around the hydraulic jack 7.The top of each hydraulic jack 7 is equipped with a pulley 8.The bottom of counter-force crossbeam 2 is equipped with polyfluortetraethylene plate 4, comes to apply very little power to hydraulic pressure lifting jack 7 by hydraulic oil source 10, makes pulley 8 contact with polyfluortetraethylene plate 4.According to formula
Calculate the pressure of voltage-stabilizing system gained, wherein
The pressure that provides for voltage-stabilizing system,
Be the number of hydraulic jack,
Be the area of piston in the voltage-stabilizing system,
For testing required vertical constant load.Set the pressure in the voltage-stabilizing system then
, start oil sources, apply vertical load to steady state value.
Claims (1)
1. shear wall vertical load charger, it is characterized in that: comprise by column (1), counter-force crossbeam (2), bottom girder (3), polyfluortetraethylene plate (4), loading plate (5), antidumping rack (6), hydraulic jack (7), pulley (8), shear wall test specimen (9), regulate bolt (10), hydraulic oil source (11), voltage-stabilizing system (12), oil pipe (13), two root posts (1) are fixedly mounted on the bottom girder (3), counter-force crossbeam (3) is fixedly mounted on two root posts (1), shear wall test specimen (9) is placed on the bottom girder (3), shear wall test specimen (9) top is equipped with loading plate (5), two sides are equipped with and regulate bolt (10) about loading plate (5), the hydraulic jack that specification more than five is identical (7) is cascaded by oil pipe (13) and links to each other with hydraulic oil source (11) and voltage-stabilizing system (12), the top of loading plate (5) is provided with a plurality of shrinkage pools corresponding with hydraulic jack (7), hydraulic jack (7) is placed in the shrinkage pool of loading plate (5), antidumping rack (6) be fixed on whole hydraulic jack (7) around, the top of hydraulic jack (7) is equipped with pulley (8), the bottom of counter-force crossbeam (2) is equipped with polyfluortetraethylene plate (4), by regulating hydraulic jack (7) pulley (8) is contacted with polyfluortetraethylene plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090866.1A CN103207096B (en) | 2013-03-21 | 2013-03-21 | Vertical load loading device for shear wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090866.1A CN103207096B (en) | 2013-03-21 | 2013-03-21 | Vertical load loading device for shear wall |
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| CN103207096A true CN103207096A (en) | 2013-07-17 |
| CN103207096B CN103207096B (en) | 2015-06-03 |
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| CN201310090866.1A Expired - Fee Related CN103207096B (en) | 2013-03-21 | 2013-03-21 | Vertical load loading device for shear wall |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713691A (en) * | 2015-04-10 | 2015-06-17 | 河海大学 | Device for exerting axis-compression ratio and fixing test specimen for structural seismic performance test and testing method for device |
| CN105043629A (en) * | 2015-08-24 | 2015-11-11 | 哈尔滨工程大学 | Portable hull eye plate tension detection apparatus |
| CN109855984A (en) * | 2018-12-05 | 2019-06-07 | 中国建筑股份有限公司 | A kind of unidirectional compression shear loading device and its application method |
| CN111257136A (en) * | 2020-02-19 | 2020-06-09 | 河北省建筑科学研究院有限公司 | Pseudo-static force horizontal shear test method and device for masonry |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713691A (en) * | 2015-04-10 | 2015-06-17 | 河海大学 | Device for exerting axis-compression ratio and fixing test specimen for structural seismic performance test and testing method for device |
| CN104713691B (en) * | 2015-04-10 | 2017-05-10 | 河海大学 | Device for exerting axis-compression ratio and fixing test specimen for structural seismic performance test and testing method for device |
| CN105043629A (en) * | 2015-08-24 | 2015-11-11 | 哈尔滨工程大学 | Portable hull eye plate tension detection apparatus |
| CN109855984A (en) * | 2018-12-05 | 2019-06-07 | 中国建筑股份有限公司 | A kind of unidirectional compression shear loading device and its application method |
| CN109855984B (en) * | 2018-12-05 | 2022-02-22 | 中国建筑股份有限公司 | Unidirectional compression shear loading device and application method thereof |
| CN111257136A (en) * | 2020-02-19 | 2020-06-09 | 河北省建筑科学研究院有限公司 | Pseudo-static force horizontal shear test method and device for masonry |
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| CN103207096B (en) | 2015-06-03 |
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