CN204679269U - A kind of pseudo static testing device - Google Patents
A kind of pseudo static testing device Download PDFInfo
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- CN204679269U CN204679269U CN201520409302.4U CN201520409302U CN204679269U CN 204679269 U CN204679269 U CN 204679269U CN 201520409302 U CN201520409302 U CN 201520409302U CN 204679269 U CN204679269 U CN 204679269U
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Abstract
The utility model discloses a kind of pseudo static testing device, comprise counter force wall (1) and reaction shelf of door type (2), the main beam (3) of reaction shelf of door type (2) is vertical with counter force wall (1) metope, vertical actuator (4) upper end is connected with main beam (3) by ball pivot (5), lower end is pressed in the distribution beam (9) parallel with main beam (3), also comprise the steel I-beam (10) be placed in successively under distribution beam (9), water pocket (11), cylindrical component to be measured (13), two Bending supports (7) are positioned at the bottom of cylindrical component to be measured (13) near two ends, also comprise anchor pole (12), steel shoe (14) and horizontal actuator (6), anchor pole (12) one end is through steel shoe (14), the other end is bolted in counter force wall (1) vertical slot road.Pseudo static testing device of the present utility model can test the drag-displacement full curve of the components such as beam column under horizontal evenly load and axial force two kinds of load actings in conjunction.
Description
Technical field
The utility model belongs to building structure mechanical test technical field, particularly a kind of pseudo static testing device can testing the drag-displacement full curve of the components such as beam column under horizontal evenly load and axial force two kinds of load actings in conjunction.
Background technology
The components such as beam column are being subject to the response under detonation as the main bearing member of building structure, are the important contents of building structure antiknock research.Due to the dangerous property of explosive test, destructiveness, costly, the defect such as difficulty of test is large, during practical study, explosive load is equivalent to evenly load by equivalent method and carries out Quintic system loading, measured the drag-displacement full curve of component by pseudo-static experimental, thus the capability of antidetonance of component can be studied.
When the quick-fried distance of explosive charge ratio is comparatively large or gas explosion time, explosive load can be approximated to be evenly load.In existing structure pseudo-static experimental, evenly load is applied to beam column component and normally adopts the method such as weight preloading or the distribution of actuator distribution beam to realize.The dirigibility of weight accumulation load method is not enough, and load capability is limited, can not fast discharging when component closes on destruction, can not acquisition member drag-displacement full curve.It is generally 2 or 3 distribution loadings that actuator distribution beam distributes Loading Method, there is comparatively big error relative to uniform loading; And component can produce moderate finite deformation when measuring component drag-displacement full curve, the distribution beam that rigidity is larger cannot ensure with the deformation of member closely and member contact, and the later stage adds unloading and is difficult to control, and also can produce comparatively big error.
Therefore, prior art Problems existing is: for the axially loaded such as structural column or restained beam component, and current pseudo static testing device can not realize the drag-displacement full curve test under horizontal evenly load and axial force two kinds of load actings in conjunction.
Summary of the invention
The purpose of this utility model is to provide a kind of pseudo static testing device, can test the drag-displacement full curve of the components such as beam column under horizontal evenly load and axial force two kinds of load actings in conjunction.
The technical solution realizing the utility model object is: a kind of pseudo static testing device, for testing the drag-displacement full curve of cylindrical component, comprise counter force wall and reaction shelf of door type, the main beam of described reaction shelf of door type is vertical with counter force wall metope, also comprise vertical actuator, described vertical actuator upper end is connected with main beam (3) by ball pivot, the lower end of vertical actuator is pressed in the distribution beam parallel with main beam, also comprise the steel I-beam that is placed under distribution beam and the water pocket under being placed in steel I-beam, cylindrical component to be measured is placed below water pocket, also comprise two Bending supports being placed in ground rebound and being fixed on the rebound of described ground, described two Bending supports are positioned at the bottom of cylindrical component to be measured, and respectively near the two ends of cylindrical component to be measured,
Also comprise anchor pole, steel shoe and horizontal actuator, described anchor pole one end is through steel shoe, with bolt tightening, steel shoe is pressed in component one end away from counter force wall, the other end is bolted in counter force wall vertical slot road, described horizontal actuator one end is fixed on counter force wall, and the other end withstands on component on one end of counter force wall.
Compared with prior art, its remarkable advantage is the utility model:
The utility model successfully realizes three kinds of load modes, namely
1. the horizontal even distributed force of component loads (simulate for lateral evenly load);
2. component carries out axial force loading (simulation long column is subject to axial compression, horizontal test);
3. the horizontal even distributed force of component and axial force load (simulation load-bearing long column is subject to Uniform Load, horizontal test) simultaneously.
And this system is installed simple, dirigibility is strong, and measuring accuracy is high, and save test space, feasibility is strong.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model pseudo static testing device.
Fig. 2 is the three-dimensional view of Fig. 1.
In figure, 1. counter force wall, 2. large-sized gantry reaction frame portal frame, 3. large-sized gantry reaction frame main beam, 4. vertical actuator, 5. ball strand, 6. horizontal actuator, 7. Bending support, 8. PC retrains baffle plate 9. distribution beam, 10. steel I-beam, 11. water pockets, 12. anchor poles, 13 components, 14. steel shoes, 15. ground rebounds.
Embodiment
As shown in Figure 1, the utility model pseudo static testing device, for testing the drag-displacement full curve of cylindrical component 13, comprise counter force wall 1 and reaction shelf of door type 2, the main beam 3 of described reaction shelf of door type 2 is vertical with counter force wall 1 metope, also comprise vertical actuator 4, described vertical actuator 4 upper end is connected with main beam 3 by ball pivot 5, the lower end of vertical actuator 4 is pressed in the distribution beam 9 parallel with main beam 3, also comprise and be placed in the steel I-beam 10 under distribution beam 9 and the water pocket 11 under being placed in steel I-beam 10, water pocket 11 places cylindrical component 13 to be measured below, also comprise two Bending supports 7 being placed in ground rebound 15 and being fixed on described ground rebound 15, described two Bending supports 7 are positioned at the bottom of cylindrical component 13 to be measured, and respectively near the two ends of cylindrical component 13 to be measured, also comprise anchor pole 12, steel shoe 14 and horizontal actuator 6, described anchor pole 12 one end is through steel shoe 14, with bolt tightening, steel shoe 14 is pressed in component 13 one end away from counter force wall 1, the other end is bolted in counter force wall 1 vertical slot road, described horizontal actuator 6 one end is fixed on counter force wall 1, the other end withstands on component 13 on one end of counter force wall 1.
Adopt joist steel and distribution beam to be because their rigidity is large, flexing can not be occurred because of larger actuator load, can ensure that the concentrated force of the generation of actuator is after distribution beam and joist steel, realize a plane loading force to water pocket.
Destroy for when preventing from testing, the hydraulic pressure that bears of water pocket 11 is excessive, be provided with transparent PC on described water pocket 11 length direction both sides and retrain baffle plate 8 and provide constraint maintenance, short side direction then arranges common angle steel and provides constraint maintenance.
Because water pocket shear behavior is more weak, easily cut up under the effect of large tens ton forces of actuator.So should ensure that the tempering PC of both sides retrains baffle plate and is close to component both sides, do not stay gap.In order to not affect observation and the measurement of component damage phenomenon, transparent PC is adopted to retrain baffle plate going along with sb. to guard him as the uniform loading system of water pocket.PC retrains baffle plate and can also prevent steel I-beam and distribution beam from falling and producing danger.
For improving comfort level and the automatization level of test, before the start cylinder of horizontal actuator 6 and vertical actuator 4, be equipped with pressure transducer 18.Pressure transducer 17 is provided with in water pocket 11 inside and component 13 surface.Or/and outside surface is adhesive with foil gauge 19 in component 13.Test site surrounding is provided with displacement transducer 16.
When needs simulation beam column component is by Uniform Load, component 13 two ends are placed on and are fixed on the Bending support 7 of ground rebound 15, the water pocket 11 filling water is placed above component 13, (rigidity is large) steel I-beam 10 that on water pocket 11, placement one piece is suitable with water pocket size, steel I-beam 10 is placed distribution beam 9.Vertical actuator 4 is placed on the cross bearer 3 of portal frame, ball pivot 5 is arranged at actuator 4 top, ball strand 5 can warranty test time actuator pistons mobile with the displacement of component 13, actuator 4 is pressed in distribution beam 9, distribution beam 9 power transmission is to steel I-beam 10, power is passed to water pocket 11 by steel I-beam 10, and namely water pocket 11 power transmission to component 13 reaches the object applying evenly load to component.The bang path of power is: vertical actuator 4-distribution beam 9-joist steel 10-water pocket 11-component 13.
The uniform loading system of water pocket is that (rigidity is large) steel I-beam that on water pocket, placement one piece is suitable with water pocket size, distribution beam placed by steel plate by placing the water pocket filling water above flat sleeping component.The reason that water pocket realizes uniform loading is that water pocket can keep along with the distortion flexure of component and the fitting tightly of component pressure surface; And water pocket is comparatively large relative to air bag rigidity, and actuator can be coordinated to unload, measure component resistance curve descending branch smoothly.
Vertical actuator is placed on the cross bearer of portal frame, and ball pivot is arranged at actuator top, ball pivot can warranty test time actuator loading direction.
When needs simulation beam column component is by the loading test of axle power, component 13 two ends are placed on and are fixed on the Bending support 7 of ground rebound 15, the anchor pole 12 of stretch-draw, anchor pole 12 one end withstands on component 13 side through steel shoe by bolt tightening, and the other end is bolted in counter force wall 1 vertical slot road.Anchor axial force loading system is that the horizontal actuator 6 by being arranged on counter force wall 1 is withstood and produced reacting force by the component ends of anchor pole compacting and apply axle power to component.
Anchor axial force loading system withstands by the actuator be arranged on counter force wall the component ends that retrained by anchor pole to produce reacting force and apply axle power to component.
Native system can be with the use of by axle power and evenly load, reach simulation component laterally by evenly load simultaneously in the object axially by axle power.
Claims (6)
1. a pseudo static testing device, for testing the drag-displacement full curve of cylindrical component (13), comprise counter force wall (1) and reaction shelf of door type (2), the main beam (3) of described reaction shelf of door type (2) is vertical with counter force wall (1) metope, it is characterized in that:
Also comprise vertical actuator (4), described vertical actuator (4) upper end is connected with main beam (3) by ball pivot (5), the lower end of vertical actuator (4) is pressed in the distribution beam (9) parallel with main beam (3), also comprise and be placed in the steel I-beam (10) under distribution beam (9) and the water pocket (11) under being placed in steel I-beam (10), water pocket (11) places cylindrical component to be measured (13) below, also comprise two Bending supports (7) being placed in ground rebound (15) and being fixed on described ground rebound (15), described two Bending supports (7) are positioned at the bottom of cylindrical component to be measured (13), and respectively near the two ends of cylindrical component to be measured (13),
Also comprise anchor pole (12), steel shoe (14) and horizontal actuator (6), described anchor pole (12) one end is through steel shoe (14), with bolt tightening, steel shoe (14) is pressed in component (13) one end away from counter force wall (1), the other end is bolted in counter force wall (1) vertical slot road, described horizontal actuator (6) one end is fixed on counter force wall (1), and the other end withstands on component (13) on one end of counter force wall (1).
2. pseudo static testing device according to claim 1, is characterized in that: be provided with transparent PC in described water pocket (11) length direction both sides and retrain baffle plate (8).
3. pseudo static testing device according to claim 1, is characterized in that: before the start cylinder of horizontal actuator (6) and vertical actuator (4), be equipped with pressure transducer (18).
4. pseudo static testing device according to claim 1, is characterized in that: be provided with pressure transducer (17) in water pocket (11) inside and component (13) surface.
5. pseudo static testing device according to claim 1, is characterized in that: or/and component surface is adhesive with foil gauge (19) in component (13).
6. pseudo static testing device according to claim 1, is characterized in that: test site surrounding is provided with displacement transducer (16).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409302.4U CN204679269U (en) | 2015-06-12 | 2015-06-12 | A kind of pseudo static testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520409302.4U CN204679269U (en) | 2015-06-12 | 2015-06-12 | A kind of pseudo static testing device |
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| CN204679269U true CN204679269U (en) | 2015-09-30 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913918A (en) * | 2015-06-12 | 2015-09-16 | 中国人民解放军理工大学 | Pseudo-static test device |
| CN106596249A (en) * | 2016-12-16 | 2017-04-26 | 福建工程学院 | Experiment loading device adaptive to component sliding |
| CN107063665A (en) * | 2017-05-09 | 2017-08-18 | 广西大学 | It is a kind of to limit the experimental rig that out-of-plain failure and guarantee are symmetrically destroyed |
| CN109357852A (en) * | 2018-10-22 | 2019-02-19 | 成都理工大学 | A kind of static(al) rack and Quintic system shock test device |
| CN109724887A (en) * | 2019-02-14 | 2019-05-07 | 重庆交通大学 | The RC bridge pier earthquake proof performance analysis method that cyclic loading is coupled with chloride ion corrosion |
| CN109724886A (en) * | 2019-02-14 | 2019-05-07 | 重庆交通大学 | The RC bridge pier antiseismic performance analysis system that cyclic loading is coupled with chloride ion corrosion |
| CN112730080A (en) * | 2020-12-24 | 2021-04-30 | 大连理工大学 | Uniform distribution loading device for steel structure test |
-
2015
- 2015-06-12 CN CN201520409302.4U patent/CN204679269U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913918A (en) * | 2015-06-12 | 2015-09-16 | 中国人民解放军理工大学 | Pseudo-static test device |
| CN106596249A (en) * | 2016-12-16 | 2017-04-26 | 福建工程学院 | Experiment loading device adaptive to component sliding |
| CN106596249B (en) * | 2016-12-16 | 2023-04-07 | 福建工程学院 | Test loading device adaptive to component sliding |
| CN107063665A (en) * | 2017-05-09 | 2017-08-18 | 广西大学 | It is a kind of to limit the experimental rig that out-of-plain failure and guarantee are symmetrically destroyed |
| CN109357852A (en) * | 2018-10-22 | 2019-02-19 | 成都理工大学 | A kind of static(al) rack and Quintic system shock test device |
| CN109724887A (en) * | 2019-02-14 | 2019-05-07 | 重庆交通大学 | The RC bridge pier earthquake proof performance analysis method that cyclic loading is coupled with chloride ion corrosion |
| CN109724886A (en) * | 2019-02-14 | 2019-05-07 | 重庆交通大学 | The RC bridge pier antiseismic performance analysis system that cyclic loading is coupled with chloride ion corrosion |
| CN112730080A (en) * | 2020-12-24 | 2021-04-30 | 大连理工大学 | Uniform distribution loading device for steel structure test |
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