CN110361275A - A kind of shear wall shock test device and its application method - Google Patents

Abstract

The invention discloses a shear wall seismic test device and its use method. The test device includes a reaction field, a four-column self-balancing rigid frame, a triangular reaction rigid frame, a loading beam, a vertical loading device, a horizontal loading device, and data acquisition. systems and control systems, etc. The reaction field includes a reaction wall, a reaction floor and a basement; the four-column self-balancing rigid frame is composed of a top beam, four columns and a bottom beam, and the vertical loading device is installed on the four-column self-balancing rigid frame At the bottom of the top beam, apply a vertical load to the shear wall specimen through the loading beam; Reciprocating load; the data acquisition system is used to collect the force, displacement and strain of each measuring point; the control system is used to control the jack and the hydraulic servo actuator. The device can be used to complete the low-cycle reciprocating seismic test of a shear wall with a maximum 5000kN horizontal direction.

Description

A shear wall seismic test device and its application method

technical field

The invention belongs to the technical field of structural performance testing and detection, and in particular relates to a shear wall anti-seismic testing device and a using method thereof.

Background technique

In the building structure, the shear wall mainly bears the horizontal load caused by wind load or earthquake, and also bears the vertical load caused by the superstructure and its own weight. Its seismic capacity and vertical bearing capacity play an important role in the safety of the structure. , so it needs to be studied in depth.

Structural test technology is an important means to study structural performance, develop structural calculation theory, research and develop new materials, new structures and new construction techniques, and has a significant role in promoting the development of civil engineering disciplines and major engineering construction. The test device is the most basic technical guarantee for experimental research, and usually includes two parts: the loading device system and the reaction device system. The reaction force to the loading device, while providing reliable boundary conditions for the loading device and the test model.

In order to truly reflect the actual stress state and deformation characteristics of the structure, and eliminate the influence of component size and material properties on the test results, the full-scale model should be used as much as possible in the test research. In the actual structure, the height of each layer of shear wall is usually 2700-3000mm, and the width is usually greater than 1500mm, so the test device must have sufficient loading space and loading capacity.

However, the existing test equipment has great limitations, and it is difficult to meet the above requirements. For example, the maximum loading capacity of the common long column press is about 10000kN, but its loading space and test objects are very limited; Although the rigid frame has a large loading space, most of its vertical loading capacity does not exceed 20,000kN, and the columns of the rigid frame must be reliably anchored, which requires high requirements for the use site; the commonly used compression-shear testing machine can perform large pressure Under the shear test, but its loading space is limited, and the test object is limited to components such as rubber bearings. Therefore, it is of great significance for the research and application of new shear walls to develop a test device with sufficient loading capacity and loading space to realize the seismic performance of full-scale shear walls.

Contents of the invention

In order to solve the above problems, the present invention discloses a shear wall seismic test device and its use method. The test device has a large loading capacity and loading space, is reasonable in design, easy to use, and can complete a shear wall with a maximum of 5000kN in one direction Low cycle reciprocating seismic test.

To achieve the above object, the technical scheme of the present invention is as follows:

A shear wall seismic test device, including a reaction site, a four-column self-balancing rigid frame, a triangular reaction rigid frame, a vertical loading device, a horizontal loading device, a loading beam, a data acquisition system, and a control system;

The reaction field includes three parts: the reaction wall, the reaction floor and the basement; Stressed reinforced concrete structure, equidistant anchor holes are opened on the floor; the basement is below the reaction floor, and the reaction wall, reaction floor and basement are integrally poured;

The four-column self-balancing rigid frame includes four columns, a top beam and a bottom beam; the bottoms of the four columns are respectively welded on the four corners of the bottom beam; several bolt holes are opened on the inner flanges of the four columns , the top beam is connected to the inner flange of the column through bolts;

The reaction wall is vertically arranged above one side of the reaction floor, the triangular reaction rigid frame is arranged above the other side of the reaction floor, and the shear wall specimen is arranged on the triangular reaction rigid frame and the reaction floor. between walls;

The loading beam is arranged below the top beam, and the loading beam is fixed above the shear wall specimen;

The vertical loading device includes a jack connected to the first hydraulic fluid system and a horizontal sliding support, the horizontal sliding support is fixed under the top beam, and the jack places the horizontal sliding support and the loading beam between;

The horizontal loading device includes a first hydraulic servo actuator connected to a second hydraulic fluid system, a second hydraulic servo actuator, a first support and a second support; one end of the first hydraulic servo actuator The first support is connected to the reaction wall, the other end of the first hydraulic servo actuator is connected to one side of the loading beam through bolts; one end of the second hydraulic servo actuator is connected to the second support It is connected with the triangular reaction force frame, and the other end of the second hydraulic servo actuator is connected with the other side of the loading beam through bolts.

The data acquisition system collects force, displacement and strain data through the force sensors, displacement gauges and strain gauges arranged at each measuring point; the control system controls the jack and the hydraulic servo actuator through the built-in components of the equipment.

Preferably, the triangular reaction force frame is composed of two rigid frames, wherein each piece of rigid frame includes a vertical bar, a diagonal bar, a ground beam, a transverse web bar and a diagonal web bar, and the vertical bar, the diagonal bar, and the ground beam constitute A closed right-angled triangle structure, the transverse web bar and the oblique web bar are arranged in the triangle, and each component is connected by welding, and the two rigid frames are connected into one body by connecting rods, and are fixed on the reaction floor by anchor rods.

Preferably, lateral supports are provided between the columns of the four-column self-balancing rigid frame, and can move up and down as required.

Preferably, a first horizontal restraining steel beam is arranged between the reaction wall and the four-column self-balancing rigid frame, and a second horizontal restraining steel beam is arranged between the triangular reaction force frame and the four-column self-balancing rigid frame.

Preferably, the bottom beam and the top beam are variable-section special-shaped beams. The bottom beam has an I-shaped structure, and there are bolt holes on the upper flange of the bottom beam for installing shear wall specimens. There are steel plates at both ends of the top beam, and there are bolt holes on the steel plates, which are connected to the inner flanges of the four columns through high-strength bolts, and can move up and down according to the height of the shear wall specimen to meet the loading requirements.

Preferably, stiffeners are welded at regular intervals between the upper and lower flanges of the columns, bottom beams and top beams to enhance local bearing capacity.

Preferably, the loading beam is a welded double-web H-shaped steel beam, and the two sides of the loading beam are respectively welded with connecting ends, and the first hydraulic servo actuator and the second hydraulic servo actuator can be connected by bolts. Both ends of the loading beam are welded with side plates, which can be used to impose out-of-plane constraints.

Preferably, the thickness of each wall pier of the reaction wall is 1m.

Preferably, the thickness of the counter force floor is 1m.

Preferably, the basement is separated by a horizontal wall and a vertical wall with a thickness of 200mm, and the net height of the basement is 3m.

Preferably, the first hydraulic fluid system, data acquisition system and control system are placed on the reaction floor, and the second hydraulic fluid system is set in the basement.

A method for carrying out the low-cycle reciprocating seismic test of a shear wall specimen by using the above-mentioned device, comprising the following steps:

1) Fix the bottom plate of the shear wall specimen to the top surface of the bottom beam with bolts;

2) Fix the loading beam on the top plate of the shear wall specimen with bolts;

3) Move the top beam to a suitable position according to the height of the shear wall specimen and fix it to the inner flange of the column with high-strength bolts;

4) Fix the sliding support under the top beam;

5) Place the jack connected to the first hydraulic fluid system between the sliding support and the loading beam;

6) Connect one end of the first horizontal restraint steel beam to the reaction wall through anchor bolts, connect the other end of the first horizontal restraint steel beam to the bottom beam through bolts; connect one end of the second horizontal restraint steel beam to the triangular reaction wall through bolts The force frame is connected, and the other end of the second horizontal constraint steel beam is connected with the bottom beam through bolts;

7) Connect one end of the first hydraulic servo actuator to the reaction wall through the first support, and connect the other end of the first hydraulic servo actuator to the loading beam through bolts; connect the second hydraulic servo actuator One end is connected to the triangular reaction force frame through the second support, and the other end of the second hydraulic servo actuator is connected to the loading beam through bolts;

8) The horizontal displacement gauges for measuring in-plane deformation are arranged on the top, middle and bottom of the end column on one side of the shear wall, and the cross displacement gauges for measuring the shear deformation of the wall are arranged along the diagonal lines of the four corners of the wall; The surface of the steel plate, the internal reinforcement and concrete surface of the reinforced concrete shear wall are arranged with strain gauges, and the displacement gauges and strain gauges are connected to the data acquisition system;

9) Install the lateral support on the inner flange of the column relative to the height of the upper part of the shear wall specimen through bolts;

10) Start the first hydraulic fluid system to apply a certain vertical load to the shear wall specimen through the jack, and start the data acquisition system simultaneously to collect displacement and strain;

11) Turn on the control system to set the loading program, start the second hydraulic fluid system, and control the first hydraulic servo actuator and the second hydraulic servo actuator to apply tension and compression cyclic loads to the shear wall specimens through the control system;

12) During the test, for the double-steel plate concrete composite shear wall specimen, observe the local buckling shape of the steel plate and the overall failure characteristics of the wall; for the concrete shear wall specimen, observe the development process and width of the crack, and the wall Characteristic of overall destruction.

The beneficial effects of the present invention are:

The present invention provides a device and method of use that can better conduct shear wall seismic tests. The test device has relatively large loading capacity and loading space, and is reasonably designed, and can complete low-cycle reciprocation of shear walls with a maximum of 5000 kN in one horizontal direction. Seismic test. The invention improves the precision and efficiency of the anti-seismic test of the shear wall, and realizes the requirement of the low cycle reciprocating anti-seismic test of the full-scale shear wall.

Description of drawings

Fig. 1 is the schematic diagram of shear wall reciprocating seismic test device of the present invention;

Fig. 2 is a schematic diagram of a four-column self-balancing rigid frame according to the present invention;

Fig. 3 is a schematic diagram of the bottom beam of the four-column self-balancing rigid frame of the present invention;

Fig. 4 is a schematic diagram of the top beam of the four-column self-balancing rigid frame of the present invention;

Fig. 5 is a schematic diagram of a triangular reaction force rigid frame according to the present invention;

Fig. 6 is a schematic diagram of a loading beam according to the present invention.

Explanation of reference signs:

1-reaction field; 11-reaction wall; 12-reaction floor; 13-basement; 2-four-column self-balancing rigid frame; 21-column, 22-top beam; 23-bottom beam; 24-steel plate; 3 -triangular reaction force frame; 31-vertical bar; 32-oblique bar; 33-ground beam; 34-cross web bar; 35-diagonal web bar; 4-vertical loading device; Jack; 43-horizontal sliding support; 5-horizontal loading device; 51-second hydraulic fluid system; 52-first hydraulic servo actuator; 53-second hydraulic servo actuator; 54-first support; 55-second support; 6-loading beam; 61-connection end; 62-side plate; 7-lateral support; 8-first horizontal restraint steel beam; 9-second horizontal restraint steel beam; 10-shear force wall test piece.

Detailed ways

The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

As shown in the figure, the shear wall seismic test device of this embodiment includes: a reaction site 1, a four-column self-balancing rigid frame 2, a triangular reaction force frame 3, a vertical loading device 4, a horizontal loading device 5, and a loading beam 6 , lateral support 7, first horizontal restraint steel beam 8, second horizontal restraint steel beam 9, data acquisition system and control system.

The reaction field 1 is composed of a reaction wall 11 , a reaction floor 12 and a basement 13 . The reaction force floor 12 is 1m thick and is a prestressed reinforced concrete structure, which is used as the foundation of the four-column self-balancing rigid frame 2 and the triangular reaction force frame 3 . The reaction floor 12 is reserved with anchor holes with a spacing of 500 mm for fixing the four-column self-balancing rigid frame 2 and the triangular reaction rigid frame 3 . The reaction wall 11 is a reinforced concrete shear wall structure with two limbs, each wall limb is 1m thick, and equidistant anchor holes are opened on it, which are used to fix the horizontal loading device 5 and provide reaction force for low-cycle reciprocating seismic tests. The basement 13 has a net height of 3m and is divided into small rooms by horizontal and vertical walls with a thickness of 200mm.

As shown in Fig. 2, Fig. 3 and Fig. 4, the four-post self-balancing rigid frame 2 of the present invention includes four upright posts 21, a top beam 22 and a bottom beam 23, all of which are welded by steel plates, and the steel material is Q345B. The cross-sections of the four columns 21 are all box-shaped, and the cross-sectional dimensions are the same, and the width and height are 1600mm and 800mm respectively. The bottoms of the four columns 21 are respectively welded on the four corners of the bottom beam 23 . The bottom beam 23 and the top beam 22 are special-shaped beams with variable cross-sections. Bottom beam 23 is 1200mm high, and its top view plane is I-shaped. Bolt holes are provided on the upper flange of the bottom beam 23 for installing shear wall specimens. The top surface of the bottom beam 23 is shot-peened to realize high-strength bolt friction connection. The height of the top beam 22 is also 1200mm, and the two sides of the two ends respectively contain steel plates with a height of 2600mm and a width of 1800mm. There are bolt holes on the steel plate, which are connected with the inner flanges of the four columns 21 through high-strength bolts, and can be connected according to the shear wall The height of the test piece 10 moves up and down to meet the loading requirements. The upper and lower flanges of the column 21, the bottom beam 23 and the top beam 22 are welded with stiffeners at regular intervals to enhance the local bearing capacity.

As shown in Figure 5, the triangular reaction force frame 3 is composed of two frames, each of which includes a vertical bar 31, an oblique bar 32, a ground beam 33, a transverse web bar 34, and a diagonal web bar 35. Welding is connected, and two rigid frames are connected into one by connecting rod 36. The vertical bar 31 is 5050 mm high, and its outer flange has bolt holes for connecting the horizontal loading device 5 . Ground beam 33 is long 2900mm, has ground anchor hole on it, is fixed on reaction force floor 12 by anchor rod.

As shown in FIG. 1 , the vertical loading device 4 includes a jack 42 connected with a first hydraulic fluid system 41 and a horizontal sliding support 43 . The horizontal sliding support 43 is fixed on the lower flange of the top beam 22 by bolts, and the jack 42 is placed between the horizontal sliding support 43 and the loading beam 6 .

As shown in FIG. 1 , the horizontal loading device 5 includes a first hydraulic servo actuator 52 and a second hydraulic servo actuator 53 connected to a second hydraulic fluid system 51 , a first support 54 and a second support 55 . The second hydraulic fluid system 51 is placed in the basement 13, the first support 54 is fixed on the reaction wall 11 through an anchor rod, and the second support 55 is fixed on the triangular reaction force frame 3 through bolts. According to the height of the shear wall specimen 10, the first support 54 and the second support 55 can move on the reaction wall 11 and the triangular reaction rigid frame 3 respectively. One end of the first hydraulic servo actuator 52 is connected to the first support 54 through bolts, and the other end of the first hydraulic servo actuator 52 is connected to the loading beam 6 through bolts. One end of the second hydraulic servo actuator 53 is connected to the second support 55 through bolts, and the other end of the second hydraulic servo actuator 53 is connected to the loading beam 6 through bolts. The lateral support 7 is a welded H-shaped steel beam with a length of 3500mm, a cross-sectional width and a height of 200mm, and the steel material is Q345B. Bolt holes are opened at both ends of the lateral support 7, which are installed on the inner flange of the column 21 through bolts to prevent the sudden large out-of-plane deformation of the shear wall specimen 10, and the lateral support 7 can move up and down as required . The first horizontal restraint steel beam 8 is a welded double-web H-shaped steel beam, one end of which is welded with a connecting end plate, connected to the reaction wall 1 through an anchor bolt, and the other end of the first horizontal restraint steel beam 8 is welded with an ear plate, through The bolts are connected to the bottom beam 23; the second horizontal restraining steel beam 9 is a welded H-shaped steel beam, one end of which is also welded with a connecting end plate, and is connected with the triangular reaction force frame 3 through bolts, and the other end of the second horizontal restraining steel beam 9 Also be welded with lug plate, link to each other with bottom beam 23 by bolt.

As shown in Figure 6, the loading beam 6 is a welded double-web H-shaped steel beam, the beam length is 3060 mm, the cross-sectional width and height are 750 mm and 550 mm, respectively, and the steel material is Q345B. Both ends of the loading beam 6 are respectively welded with connecting ends 61, which can be connected to the first hydraulic servo actuator 52 and the second hydraulic servo actuator 53 by bolts. Both ends of the loading beam 6 are welded with side plates 62 respectively, which can be used to impose out-of-plane constraints.

The data acquisition system integrates force, displacement, stress and strain data acquisition and processing devices, and collects force, displacement and strain data through force sensors, displacement gauges and strain gauges arranged at each measuring point. The control system controls the jacks and hydraulic servo actuators through the built-in components of the equipment.

The method of using the above-mentioned shear wall seismic test device to carry out the low-cycle reciprocating seismic test of the shear wall specimen is realized through the following steps:

In the first step, the bottom plate of the shear wall specimen 10 is fixed on the top surface of the bottom beam 23 with bolts;

In the second step, the loading beam 6 is fixed on the top plate of the shear wall specimen 10 with bolts;

In the third step, the top beam 22 is moved to a suitable position according to the height of the shear wall specimen 10 and fixed to the inner flange of the column 21 by high-strength bolts;

The fourth step is to fix the sliding support 43 under the top beam 22;

In the fifth step, the jack 42 connected with the first hydraulic fluid system 41 is placed between the sliding support 43 and the loading beam 6;

The sixth step is to connect one end of the first horizontal restraint steel beam 8 with the reaction wall 1 through anchor bolts, connect the other end of the first horizontal restraint steel beam 8 with the bottom beam 23 through bolts; connect the second horizontal restraint steel beam 8 with bolts One end of 9 is connected to the triangular reaction force frame 3, and the other end of the second horizontal constraint steel beam 9 is connected to the bottom beam 23 through bolts;

In the seventh step, use anchor bolts to fix the first support 54 on the reaction wall 11, connect one end of the first hydraulic servo actuator 52 to the first support 54 through bolts, and connect the first hydraulic servo actuator The other end of 52 is connected with the loading beam 6 by bolts; the second support 55 is fixed to the two columns of the triangular reaction force frame 3 by bolts, and one end of the second hydraulic servo actuator 53 is connected to the first by bolts. On the second support 55, the other end of the second hydraulic servo actuator 53 is connected to the loading beam 6 through bolts;

In the eighth step, the horizontal displacement gauges for measuring the in-plane deformation are arranged on the top, middle and bottom of the end columns on one side of the shear wall, and the cross displacement gauges for measuring the shear deformation of the wall are arranged along the diagonal lines of the four corners of the wall; The steel plate surface of the force wall, and the internal reinforcement and concrete surface of the reinforced concrete shear wall are arranged with strain gauges, and the displacement gauges and strain gauges are connected to the data acquisition system;

In the ninth step, the lateral support 7 is installed on the inner flange of the column 21 relative to the upper height of the shear wall specimen 10 by bolts;

In the tenth step, start the first hydraulic fluid system 41 to apply a certain vertical load to the shear wall specimen 10 through the jack 42, and start the data acquisition system synchronously to collect displacement and strain;

In the eleventh step, open the control system to set the loading program, start the second hydraulic fluid system 51, and control the first hydraulic servo actuator 52 and the second hydraulic servo actuator 53 to exert pressure on the shear wall specimen 10 through the control system. tension and compression cyclic load;

In the twelfth step, during the test, for the double steel plate concrete composite shear wall specimen, observe the local buckling shape of the steel plate and the characteristics of the overall failure of the wall; for the concrete shear wall specimen, observe the development process and width of the crack, And the characteristics of the overall failure of the wall.

The technical means disclosed in the solutions of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims (9)

1. a kind of shear wall shock test device, it is characterised in that: anti-including counter-force place, four column self-balancing rigid frames, triangle Power rigid frame, vertical loading device, horizontal loading apparatus, load crossbeam, data collection system and control system；

The counter-force place includes counter force wall, counter-force terrace and basement three parts；The counter force wall is mixed using double limb reinforcing bars Soil shear wall structure is coagulated, is provided with equidistant anchor hole in wall limb；Counter-force terrace uses prestressed reinforced concrete structure, is provided on terrace Equidistant anchor hole；It is basement below counter-force terrace, the counter force wall, counter-force terrace and basement formed by integrally casting form；

The four columns self-balancing rigid frame includes four columns, a top beam and a foundation beam；Four column bottoms are welded respectively It connects on bottom beam four corners；Edge of a wing top is provided with several bolts hole on the inside of four columns, and the top beam is by bolt and stands The edge of a wing is connected on the inside of column；

The counter force wall is vertically arranged in one upper side of counter-force terrace, and the triangle counter-force rigid frame setting is another in counter-force terrace Upper side, shear wall test specimen are arranged between triangle counter-force rigid frame and counter force wall；

The load crossbeam is arranged below top beam, and load crossbeam is fixed on above shear wall test specimen；

The vertical loading device includes the jack and horizontal sliding support for the first hydraulic fluid system that connects, the horizontal sliding Support is fixed below the top beam, and the jack is placed between the horizontal sliding support and the load crossbeam；

The horizontal loading apparatus includes the first hydraulic servo actuator and the second hydraulic servo for the second hydraulic fluid system that connects Actuator, the first support and the second support；One end of first hydraulic servo actuator passes through the first support and the counter-force Wall is connected, and the other end of first hydraulic servo actuator is connected by bolt with load crossbeam side；Described second is hydraulic One end of servo actuator is connected by the second support with the triangle counter-force rigid frame, second hydraulic servo actuator The other end is connected by bolt with the load crossbeam other side；

The data collection system acquires power, position by being respectively arranged in the force snesor, displacement meter and foil gauge of each measuring point respectively Shifting and strain data；The control system controls jack and hydraulic servo actuator by equipment built-in element.

2. a kind of shear wall shock test device according to claim 1, it is characterised in that: the triangle counter-force rigid frame Be made of two panels rigid frame, wherein every rigid frame includes vertical bar, brace, ground beam, horizontal web member and diagonal web member, the vertical bar, brace, Beam constitutes a closed triangular structure of right angle, and horizontal web member and diagonal web member are arranged in triangle, and each component part passes through weldering Connect connected, two panels rigid frame is connected by connecting rod, and is fixed on counter-force terrace by anchor pole.

3. a kind of shear wall shock test device according to claim 1, it is characterised in that: the four columns self-balancing rigid frame Column between lateral support is set.

4. a kind of shear wall shock test device according to claim 1, it is characterised in that: the counter force wall and four columns are certainly It balances and first level steel structure is set between rigid frame, the second water is set between triangle counter-force rigid frame and four column self-balancing rigid frames Flat steel structure.

5. a kind of shear wall shock test device according to claim 1, it is characterised in that: the bottom beam and top beam are to become Cross section special-shaped beam, bottom beam are in I-shaped structure, and bottom beam top flange is provided with bolt hole, and top beam both ends are equipped with steel plate, are provided on steel plate Bolt hole is connected by high-strength bolt with the edge of a wing on the inside of four columns.

6. a kind of shear wall shock test device according to claim 1, it is characterised in that: the column, bottom beam and top Ribbed stiffener is all welded with every a certain distance between the upper lower flange of beam.

7. a kind of shear wall shock test device according to claim 1, it is characterised in that: the load crossbeam is welding Double web H section steel beams, load crossbeam two sides are welded with connection end respectively, the first hydraulic servo actuator and the are bolted Two hydraulic servo actuators, the both ends for loading crossbeam are welded with side plate respectively.

8. a kind of shear wall shock test device according to claim 1, it is characterised in that: first hydraulic fluid system System, data collection system and control system are placed on counter-force terrace, and the second hydraulic fluid system is set in basement.

9. a kind of method for carrying out shear wall test specimen low week reciprocal shock test using above-mentioned apparatus, comprising the following steps:

1) bottom plate of shear wall test specimen is fixed on bottom beam top surface with bolt；

2) it is fixed on the top plate of shear wall test specimen with bolt by crossbeam is loaded；

3) top beam is moved to by suitable position according to the height of shear wall test specimen and is fixed in column by high-strength bolt Side wing edge；

4) sliding support is fixed below top beam；

5) jack for being connected with the first hydraulic fluid system is placed between sliding support and load crossbeam；

6) first level steel structure one end is connected with counter force wall by anchor bolt, it is by bolt that first level steel structure is another One end is connected with bottom beam；Second horizontal restraint girder steel one end is connected with the triangle counter-force rigid frame by bolt, passes through spiral shell The second horizontal restraint girder steel other end is connected by bolt with the bottom beam；

7) one end of the first hydraulic servo actuator is connected by the first support with counter force wall, by the first hydraulic servo actuator The other end by bolt with load crossbeam be connected；One end of second hydraulic servo actuator is passed through into the second support and triangle Counter-force rigid frame is connected, and the other end of the second hydraulic servo actuator is connected by bolt with load crossbeam；

8) horizontal displacement meter that measurement plane internal deformation is arranged in shear wall side newel post's upper, middle and lower, along metope quadrangle diagonal line cloth Set the shear-deformable across displacement meter of measurement wall；In the surface of steel plate of double steel plate combined concrete shear wall, armored concrete The inside reinforcing bar and concrete surface of shear wall arrange foil gauge, and displacement meter and foil gauge are connected to data collection system；

9) lateral support is mounted on relative to the inside edge of a wing at the height of shear wall test specimen middle and upper part by bolt by column；

10) the first hydraulic fluid system of starting applies certain vertical load, and synchronous averaging by jack pair shear wall test specimen Data collection system acquisition displacement and strain；

11) opening control sets loading procedure, starts the second hydraulic fluid system, watches by the way that control system control first is hydraulic It takes actuator and the second hydraulic servo actuator and tension and compression cyclic load is applied to shear wall test specimen；

12) during testing, for double steel plate combined concrete shear wall test specimen, the form and wall of steel plate local buckling are observed The feature integrally destroyed；For concrete shear force wall test specimen, the development process and width and wall for observing crack are integrally destroyed Feature.