CN103033385B - Device and method of self-balancing portable automatic control shear wall horizontal vertical load common effect performance test - Google Patents

Device and method of self-balancing portable automatic control shear wall horizontal vertical load common effect performance test Download PDF

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Publication number
CN103033385B
CN103033385B CN201210564875.5A CN201210564875A CN103033385B CN 103033385 B CN103033385 B CN 103033385B CN 201210564875 A CN201210564875 A CN 201210564875A CN 103033385 B CN103033385 B CN 103033385B
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horizontal
actuator
vertical
test
vertical load
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CN103033385A (en
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沈德建
崔正华
江倩艳
申嘉鑫
成大宝
邓树成
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NANJING BODE ENGINEERING TECHNOLOGY Co Ltd
Hohai University HHU
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NANJING BODE ENGINEERING TECHNOLOGY Co Ltd
Hohai University HHU
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Abstract

The invention discloses a device and a method of a self-balancing portable automatic control shear wall horizontal vertical load common effect performance test. The testing device comprises a loading frame device, a test-piece fixing device, a test-piece loading device and a data collection system. The loading frame device comprises a ladder-shaped horizontal counterforce frame, an H-shaped steel girder bearing platform, a beam, an upright and a prestressing force wire rope. The lower end of the ladder-shaped horizontal counterforce frame is fixedly connected with one end of the H-shaped steel girder bearing platform, the upper end of the ladder-shaped horizontal counterforce frame is fixedly connected with one end of the beam, and the prestressing force wire rope is arranged in the ladder-shaped horizontal counterforce frame. The test-piece fixing device comprises two triangular steel frames, two fixing actuators and two sets of steel plates, wherein the triangular steel frames are fixed on the H-shaped steel girder bearing platform, and each triangular steel frame is connected with one fixing actuator. The device and the method of the self-balancing portable automatic control shear wall horizontal vertical load common effect performance test has the advantages of being simple in structure, convenient to disassemble, lower than before in needed materials, not only suitable for scientific research, but also suitable for test on hysteretic performance of a shear wall test-piece in a construction site.

Description

A kind of self-equilibrating Portable Automatic control shear wall horizontal vertical load acting in conjunction performance test apparatus and method
Technical field
The present invention relates to a kind of self-equilibrating Portable Automatic control shear wall horizontal vertical load acting in conjunction performance test apparatus and method, belong to concrete construction field.
Background technology
In field of civil engineering, shear wall is as the main lateral resistant member of structure, and it is very important for studying its Hysteresis Behavior.
At present in the test of research concrete shear force wall Hysteresis Behavior, mainly apply vertical force by lifting jack, but along with body of wall under horizontal loads, there is sidesway time, lifting jack does not produce test error with test specimen generation sidesway; In loading procedure, the sidesway bottom test specimen also produces larger impact to test accuracy.
Summary of the invention
The invention provides a kind of self-equilibrating Portable Automatic control shear wall horizontal vertical load acting in conjunction performance test apparatus and method, the assembling of this device is simple, easy to operate, the required instrument of test is less, can test at the scene of building, as long as carry out partial disassembly and assembling, easy to operate.
In order to realize above-mentioned technical matters, the present invention is by the following technical solutions: a kind of self-equilibrating Portable Automatic control shear wall horizontal vertical load acting in conjunction performance test apparatus, comprises loading frame device, test piece fixing device, test specimen charger and data acquisition system (DAS); Described loading frame device comprises trapezoid horizontal reaction frame, i-shape steel beam cushion cap, crossbeam, column and prestressed cable, the lower end of described trapezoid horizontal reaction frame is fixedly connected with one end of i-shape steel beam cushion cap, the upper end of trapezoid horizontal reaction frame is fixedly connected with one end of crossbeam, is fixedly connected with described column at the other end of crossbeam with the other end of i-shape steel beam cushion cap; Described prestressed cable is arranged in trapezoid horizontal reaction frame; Described test piece fixing device comprises two triangle steelframes, two fixing actuator and two cover steel clamp plates, and wherein triangle steelframe is fixed on described i-shape steel beam cushion cap, and each triangle steelframe connects the fixing actuator described in; Described test specimen charger comprises: horizontal actuator, three vertical actuator, hydraulic oil source, controller, horizontal load sensor, vertical load sensor and displacement transducers, described horizontal actuator one end is connected with trapezoid horizontal reaction frame by ball pivot, the horizontal actuator other end is connected with steel clamp plate by ball pivot, between horizontal actuator and steel clamp plate, described horizontal load sensor is set, three described vertical actuator are connected with crossbeam by ball pivot, and described vertical load sensor is connected with vertical actuator; Described horizontal actuator is connected with hydraulic oil source respectively by the special oil pipe of actuator with three vertical actuator; Described data acquisition system (DAS) comprises: controller, hyperchannel strain acquirement instrument and computer, and described horizontal load sensor, vertical load sensor are connected with hyperchannel strain acquirement instrument respectively by quad with displacement transducer.
Described hydraulic oil source, controller, hyperchannel strain acquirement instrument, computer are connected by data line.
The polyfluortetraethylene plate installing pulley is placed with at the end face of shear wall body.
The assay method of self-equilibrating Portable Automatic control shear wall horizontal vertical load acting in conjunction performance test apparatus, step is as follows:
The first step: trapezoid horizontal reaction frame ground anchor bolt and ground are connected and fixed, then i-shape steel beam cushion cap is connected and fixed respectively by high-strength bolt and ground anchor bolt and trapezoid horizontal reaction frame and ground; Then high-strength bolt is adopted to be connected with between trapezoid horizontal reaction frame, i-shape steel beam cushion cap on crossbeam, column, and by prestressed cable to trapezoid horizontal reaction frame Shi Hanzhang;
Second step: horizontal actuator is connected with trapezoid horizontal reaction frame with ball pivot by high-strength bolt, horizontal load sensor is connected with horizontal actuator by high-strength bolt, and be connected with steel clamp plate with ball pivot by high-strength bolt, then three vertical actuator are connected with crossbeam with ball pivot by high-strength bolt, and by vertical load sensor by high-strength bolt and vertical actuator, the polyfluortetraethylene plate being provided with pulley connects, horizontal actuator is connected with hydraulic oil source respectively by actuator application tube with three vertical actuator, and by hydraulic oil source, controller, hyperchannel strain acquirement instrument, computer is connected by data line,
3rd step: shear wall test specimen is fixed on i-shape steel beam cushion cap by bottom anchor bolt and body of bolt, power is applied by both sides triangle steelframe and fixing actuator, prevent test specimen sidesway, after regulating the stroke of horizontal actuator to correct position by computer and controller, clamp both sides steel clamp plate, intert body of bolt also with bolt tightening; The polyfluortetraethylene plate being provided with pulley is put into the top of test specimen.Displacement transducer is placed into preposition, and horizontal load sensor, vertical load sensor, displacement transducer are connected on hyperchannel strain acquirement instrument by quad;
4th step: when needs are tested, control vertical actuator by computer and controller and apply vertical load to predetermined value, then horizontal reciprocating load is applied according to horizontal loading Protonation constant level of control actuator, until test specimen destroys, and by computer and the instrument collection of hyperchannel strain acquirement and the horizontal force P recorded in process of the test and horizontal shift S;
5th step: according to the horizontal shift S at the horizontal force P recorded in process of the test and horizontal force action point place, make the hysteresis loop of test specimen.
Compared with prior art, the invention has the beneficial effects as follows:
1, proving installation vertical load of the present invention and horizontal loading all adopt actuator to load, can the stroke of flexible actuator, in loading procedure, realize high precision by computer control, fixing actuator is set in test specimen two bottom sides simultaneously, can effectively prevent test specimen in test process to be moved, measuring accuracy is high.
2, apparatus of the present invention assembling is simple, easy to operate, and the required instrument of test is less, can test at the scene of building, as long as carry out partial disassembly and assembling, easy to operate.
Accompanying drawing explanation
Fig. 1 is the single unit system figure of proving installation of the present invention.
Fig. 2 is the charger figure of proving installation of the present invention.
The test specimen anchoring schematic diagram of Fig. 3 proving installation of the present invention
Fig. 4 is displacement transducer arrangenent diagram of the present invention.
Wherein: 1-trapezoid horizontal reaction frame; 2-i-shape steel beam cushion cap; 3-crossbeam; 4-column; 5-high-strength bolt; 6-prestressed cable; 7-triangle steelframe; 8-fixing actuator; 9-steel clamp plate; 10-body of bolt; 11-bottom anchor body of bolt; 12-fixed load sensor; 13-horizontal actuator; 14-vertical actuator; 15-hydraulic oil source; 16-controller; 17-horizontal load sensor; 18-vertical load sensor; 19-displacement transducer; 20-large ball pivot; The little ball pivot of 21-; 22-oil pipe; 23-quad; 24-hyperchannel strain acquirement instrument; 25-computer; 26-data line; 27-polyfluortetraethylene plate; 28. ground anchor bolts.
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated:
Shown in Fig. 1, self-equilibrating of the present invention Portable Automatic control shear wall horizontal vertical load acting in conjunction performance test apparatus, comprises loading frame device, test piece fixing device, test specimen charger, data acquisition system (DAS).
Loading frame device comprises trapezoid horizontal reaction frame 1, i-shape steel beam cushion cap 2, crossbeam 3, column 4, prestressed cable 6.High-strength bolt 5 is adopted to be connected between trapezoid horizontal reaction frame 1 with i-shape steel beam cushion cap 2, crossbeam 3, column 4 adopt high-strength bolt 5 to be connected with between trapezoid horizontal reaction frame 1, i-shape steel beam cushion cap 2 so that assembled and transport, and trapezoid horizontal reaction frame 1 is by prestressed cable 6 Shi Hanzhang.
Test piece fixing device is made up of the fixing actuator 8 of two triangle steelframes 7, two and two cover steel clamp plates 9, body of bolt 10 and bottom anchor body of bolt 11.
Two triangle steelframes 7 and two fixing actuator 8 are bolted, with bolts between i-shape steel beam cushion cap 2 and two triangle steelframes 7.
Test specimen charger comprises: horizontal actuator 13, three vertical actuator 14, hydraulic oil source 15, controller 16, horizontal load sensor 17, vertical load sensor 18, displacement transducer 19, described horizontal actuator 13 is connected with trapezoid horizontal reaction frame 1 with large ball pivot 20 by high-strength bolt 5, horizontal load sensor 17 is connected with horizontal actuator 13 by high-strength bolt 5, and be connected with steel clamp plate 9 with large ball pivot 20 by high-strength bolt 5, described three vertical actuator 14 are connected with crossbeam 3 with little ball pivot 21 by high-strength bolt 5, described vertical load sensor 18 is connected with vertical actuator 14 by high-strength bolt 5.
Horizontal actuator 13 is connected with hydraulic oil source 15 respectively by actuator application tube 22 with three vertical actuator 14, horizontal load sensor 17, vertical load sensor 18, displacement transducer 19 are connected with hyperchannel strain acquirement instrument 24 respectively by quad 23, displacement transducer 19 comprise horizontal direction arrange, vertical direction and along test specimen diagonal line arrange multiple, the end face of test specimen be provided with band pulley polyfluortetraethylene plate 27.
Data acquisition system (DAS) comprises: controller 16, hyperchannel strain acquirement instrument 24, computer 25, and hydraulic oil source 15, controller 16, hyperchannel strain acquirement instrument 24 and computer 25 are connected by data line 26.

Claims (4)

1. a self-equilibrating Portable Automatic control shear wall horizontal vertical load acting in conjunction performance test apparatus, is characterized in that: comprise loading frame device, test piece fixing device, test specimen charger and data acquisition system (DAS), described loading frame device comprises trapezoid horizontal reaction frame (1), i-shape steel beam cushion cap (2), crossbeam (3), column (4) and prestressed cable (6), the lower end of described trapezoid horizontal reaction frame (1) is fixedly connected with one end of i-shape steel beam cushion cap (2), the upper end of trapezoid horizontal reaction frame (1) is fixedly connected with one end of crossbeam (3), is fixedly connected with described column (4) at the other end of crossbeam (3) with the other end of i-shape steel beam cushion cap (2), described prestressed cable (6) is arranged in trapezoid horizontal reaction frame (1), described test piece fixing device comprises two triangle steelframes (7), two fixing actuator (8) and two covers steel clamp plate (9), wherein triangle steelframe (7) is fixed on described i-shape steel beam cushion cap (2), in the fixing actuator (8) described in the upper connection one of each triangle steelframe (7), described test specimen charger comprises: horizontal actuator (13), three vertical actuator (14), hydraulic oil source (15), controller (16), horizontal load sensor (17), vertical load sensor (18) and displacement transducer (19), described horizontal actuator (13) one end is connected with trapezoid horizontal reaction frame (1) by large ball pivot (20), horizontal actuator (13) other end is connected with steel clamp plate (9) by large ball pivot (20), described horizontal load sensor (17) is set between horizontal actuator (13) and steel clamp plate (9), three described vertical actuator (14) are connected with crossbeam (3) by little ball pivot (21), described vertical load sensor (18) is connected with vertical actuator (14), described horizontal actuator (13) is connected with hydraulic oil source (15) respectively by actuator application tube (22) with three vertical actuator (14), described data acquisition system (DAS) comprises: controller (16), hyperchannel strain acquirement instrument (24) and computer (25), and described horizontal load sensor (17), vertical load sensor (18) are connected with hyperchannel strain acquirement instrument (24) respectively by quad (23) with displacement transducer (19).
2. according to the Portable Automatic control of the self-equilibrating described in claim 1 shear wall horizontal vertical load acting in conjunction performance test apparatus, it is characterized in that: described hydraulic oil source (15), controller (16), hyperchannel strain acquirement instrument (24), computer (25) are connected by data line (26).
3. according to the Portable Automatic control of the self-equilibrating described in claim 1 shear wall horizontal vertical load acting in conjunction performance test apparatus, it is characterized in that: the polyfluortetraethylene plate (27) being provided with band pulley at the end face of test specimen.
4. adopt an assay method for the Portable Automatic control of the self-equilibrating described in claim 1 shear wall horizontal vertical load acting in conjunction performance test apparatus, it is characterized in that: step is as follows:
The first step: trapezoid horizontal reaction frame (1) ground anchor bolt (28) and ground are connected and fixed, then i-shape steel beam cushion cap (2) is connected and fixed with trapezoid horizontal reaction frame (1) and ground respectively by high-strength bolt (5) and ground anchor bolt (28); Then high-strength bolt (5) is adopted to be connected with between trapezoid horizontal reaction frame (1), i-shape steel beam cushion cap (2) on crossbeam (3), column (4), and by prestressed cable (6) to trapezoid horizontal reaction frame (1) Shi Hanzhang;
Second step: horizontal actuator (13) is connected with trapezoid horizontal reaction frame (1) with large ball pivot (20) by high-strength bolt (5), horizontal load sensor (17) is connected with horizontal actuator (13) by high-strength bolt (5), and be connected with steel clamp plate (9) with large ball pivot (20) by high-strength bolt (5), then three vertical actuator (14) are connected with crossbeam (3) with little ball pivot (21) by high-strength bolt (5), and by vertical load sensor (18) by high-strength bolt (5) and vertical actuator (14), polyfluortetraethylene plate (27) connects, horizontal actuator (13) is connected with hydraulic oil source (15) respectively by actuator application tube (22) with three vertical actuator (14), and by hydraulic oil source (15), controller (16), hyperchannel strain acquirement instrument (24), computer (25) is connected by data line (26),
3rd step: shear wall test specimen is fixed on i-shape steel beam cushion cap (2) by bottom anchor bolt and body of bolt, power is applied by both sides triangle steelframe (7) and fixing actuator (8), prevent test specimen sidesway, regulate the stroke of horizontal actuator (13) after correct position by computer (25) and controller (16), clamp both sides steel clamp plate (9), intert body of bolt (10) with bolt tightening; Regulate the stroke of vertical actuator (14) that polyfluortetraethylene plate (27) is put into the top of test specimen again, displacement transducer (19) is placed into preposition, and horizontal load sensor (17), vertical load sensor (18), displacement transducer (19) are connected on hyperchannel strain acquirement instrument (24) by quad (23);
4th step: when needs are tested, control vertical actuator (14) by computer (25) and controller (16) and apply vertical load to predetermined value, then horizontal reciprocating load is applied according to horizontal loading Protonation constant level of control actuator (13), until test specimen destroys, and gathered and the horizontal force P recorded in process of the test and horizontal shift S by computer (25) and hyperchannel strain acquirement instrument (24);
5th step: according to the horizontal shift S at the horizontal force P recorded in process of the test and horizontal force action point place, make the hysteresis loop of test specimen.
CN201210564875.5A 2012-12-24 2012-12-24 Device and method of self-balancing portable automatic control shear wall horizontal vertical load common effect performance test Expired - Fee Related CN103033385B (en)

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