CN115406746A - Testing arrangement that concrete member core area shear deformation - Google Patents

Abstract

The invention discloses a test device for shear deformation of the core area of a concrete component, which comprises a base with an open front end, a box with an open upper end is arranged at the upper end of the base, a storage battery is arranged at the bottom of the inner wall of the base, and the upper end of the open end of the base rotates A support plate is connected, the outer wall of the support plate is provided with a control panel, and a plurality of fixed frames are placed in the box, and the fixed frames include a first fixed rod, a threaded rod, a second fixed rod, each first fixed rod and each second fixed rod The position of the upper end of the fixed rod is rotated and connected with a positioning bar, and the upper end of the outer wall of each positioning bar is equipped with an inclination sensor. The left and right sides of the control panel are provided with a number of jacks inwardly, and one side of the bottom of the inner wall of the box is set. A cable box, a number of connecting wires are placed in the cable box. The present invention can fix it without using glue or other fixing parts, not only convenient and fast, but also firm in installation and easy to carry, and can test the deformation and testing of the core area of the component from multiple angles.

Description

Test device for shear deformation of the core area of concrete members

technical field

The invention relates to the technical field of engineering structure testing, in particular to a testing device for shear deformation of the core area of a concrete component.

Background technique

Civil engineering construction has always been the focus of national construction and development, and is the pillar industry of my country's economic development. The study of shear deformation of concrete structures and components is particularly important for the seismic design, construction and reinforcement of concrete structures. Reinforced concrete components are used in long-term , Due to the influence of load, temperature, humidity and foundation subsidence, deformation and displacement will occur. The deformation not only affects the appearance and use, but also affects the stress and stability of the structure.

Larger deformations often change the stress conditions of the structure, increase the eccentricity of the force, and generate new additional stress in the component section and connection nodes, thereby reducing the bearing capacity of the component, causing cracking or even collapse of the component, and structural deformation. How is often an important sign reflecting whether the structure is working normally, and is an important content of the safety appraisal of structural components.

Through experimental research and research, it is shown that the existing measurement of the shear deformation area of the concrete specimen is mainly based on the displacement sensor LVDT or the displacement meter, and the fixing fixture is directly pasted on the surface of the specimen by glue. However, during the test process, due to the cross Deformation, the fixture will not stick firmly, fall off, and the test rod is not in a straight line, so it is impossible to accurately measure the relative sliding according to the actual deformation to carry out accurate measurement of shear deformation, and it is large in size and inconvenient to carry. Therefore, an easy-to-carry , Installation and test equipment for easy measurement.

Contents of the invention

The purpose of the present invention is to provide a test device for the shear deformation of the core area of concrete components, which can be fixed without using glue or other fixing parts. It is not only convenient and fast, but also firm in installation and easy to carry. Deformation and testing of the core area of the component.

Above-mentioned technical purpose of the present invention is achieved through the following technical solutions:

The test device for the shear deformation of the core area of the concrete member includes a base with an open front end, a box with an open upper end is arranged on the upper end of the base, and a box cover for covering the open end of the box is hinged on one side of the open end , the bottom of the inner wall of the base is provided with a storage battery upwards, the upper end of the open end of the base is provided with a support plate that matches it and can rotate up and down, and a control panel is provided on the outer wall of the support plate, and the control panel includes A display screen, a number of operation buttons arranged on one side of the display screen, a controller and a data processing module are arranged behind the control panel in the support plate;

A plurality of U-shaped fixed mounts arranged along its height direction are placed inside the box, and the fixed mounts include a first fixed rod, a threaded rod passing through the first fixed rod and rotatably connected with it, and the The threaded rod is threadedly connected to the second fixed rod opposite to the first fixed rod, and the upper ends of each first fixed rod and each second fixed rod are relatively provided with fixed blocks;

A rotating shaft is rotatably connected between every two opposite fixed blocks, the upper end of each rotating shaft outer wall is provided with a positioning bar upward, and the upper end of each positioning bar outer wall is equipped with an inclination sensor, and the left and right sides of the control panel A number of jacks distributed in an array and electrically connected to them are arranged inwardly. A wire box with an upper end opening is arranged on one side of the bottom of the inner wall of the box, and a number of sockets connected to the jacks are placed in the wire box. The inclination sensor is matched with a connection wire that is electrically connected and detachably connected to it, and the storage battery, the control panel, and the data processing module are all electrically connected to the controller.

By adopting the above technical scheme, when in use, first bring the device to the position of the concrete component to be measured, open the box cover, take out the fixing frames one by one, and then turn the threaded rod according to the size of the concrete component, so that the second fixing rod is close to The first fixing rod fixes the fixing frame on the concrete component. When fixing the fixing frame, fix it from bottom to top. After the fixing is completed, turn the positioning bar to stick it on the outer wall of the concrete component, and take out the connecting wire in the wire box. , connect one end to the inclination sensor, and insert the other end into the jack of the control panel, the battery provides power, operate the operation button on the control panel, first let the inclination sensor at the bottom of the concrete member start to work, and measure the initial value displayed on the display;

Then operate the control panel, control the other inclination sensors to start working through the controller, and each inclination sensor will tilt the corresponding angle according to the degree of deformation of the corresponding measurement position, and transmit the measured value to the data processing module through the connection line and compare with the initial The values are compared and displayed on the display screen, and the data processing module integrates the measured data to measure the deformation degree of the core area of the concrete member.

A further configuration of the present invention is that: the bottom of the outer wall of the base is rotatably connected with a plurality of universal wheels distributed in an array.

A further configuration of the present invention is: a bubble level is provided on one side of the upper end of the outer wall of each first fixing rod and each second fixing rod.

By adopting the above-mentioned technical scheme, each fixing frame can be placed in a horizontal position with the concrete member to ensure measurement accuracy.

A further setting of the present invention is: one side of the upper end of each fixed frame is provided with a U-shaped frame on the upper end of the outer wall of the corresponding positioning bar and the side of the corresponding inclination sensor, and the left and right sides of the inner wall of the U-shaped frame are connected with rotating wheels in cooperation. , the outer wall of each runner is wound with a fixed wire.

A further setting of the present invention is: the upper end of one side of the outer wall of each U-shaped frame is provided with a fixing groove downward, and the free end of each fixing line is provided with a wedge that cooperates with the corresponding fixing groove and slides up and down.

By adopting the above technical scheme, the positioning strip on the fixing frame can be closely attached to the concrete member, and the measurement accuracy can be prevented from being affected by external factors.

A further configuration of the present invention is that: the left and right sides of the outer wall of each runner and the inner wall of the corresponding side of the corresponding U-shaped frame are connected with springs in cooperation.

By adopting the above technical solution, the fixed wire can be automatically recovered after use.

Compared with the prior art, the present invention has the following beneficial effects:

First, the present invention does not need to use glue or other fixing parts to fix it, which is not only convenient and fast, but also firm in installation and easy to carry, and can test the deformation and testing of the core area of the component from multiple angles;

Its two, the fixed mount of the present invention can be adjusted according to the size of measuring concrete member, and install firmly;

Third, the spring of the present invention can not only allow the positioning bar to be attached to the outside of the concrete member, but also automatically recover the fixing line after use.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Figure 2 is mainly used to show the position connection relationship of each component;

Figure 3 is mainly used to show the fixing frame.

In the figure: 1. base; 11. universal wheel; 12. support plate; 13. control panel; 14. display screen; 15. operation button; 16. jack; 17. controller; 18. data processing module; 19, box body; 2, box cover; 21, fixed frame; 22, first fixed rod; 23, threaded rod; 24, second fixed rod; 25, fixed block; 26, rotating shaft; 27, positioning bar; 28, Inclination sensor; 29, U-shaped frame; 3, runner; 31, fixed line; 32, wedge block; 33, fixed groove; 34, bubble level; 35, spring; 36, wire box; 37, connecting wire; 38 , Battery.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Embodiment, with reference to Fig. 1-3, a kind of test device of the shear deformation of concrete member core area, comprises the base 1 of front end opening, the upper end of base 1 is provided with the box body 19 of upper end opening, the box body 19 opening ends One side is hinged with a box cover 2 for covering its open end, the bottom of the outer wall of the base 1 is rotatably connected with four universal wheels 11 distributed in an array, and a storage battery 38 is arranged upward on the bottom of the inner wall of the base 1, and the base 1 The upper end of the opening end is provided with a matching support plate 12 which can rotate up and down. The outer wall of the support plate 12 is provided with a control panel 13. The operation button 15 is provided with a controller 17 and a data processing module 18 behind the control panel 13 in the support plate 12 .

A plurality of U-shaped fixed mounts 21 arranged along its height direction are placed inside the box body 19. The fixed mounts 21 include a first fixed rod 22, a threaded rod 23 that passes through the first fixed rod 22 and is rotatably connected thereto. 1. A second fixed rod 24 that is threadedly connected with the threaded rod 23 and arranged opposite to the first fixed rod 22, and one side of the upper end of each first fixed rod 22 and the outer wall of each second fixed rod 24 is provided with an air bubble The level 34 is provided with a fixed block 25 opposite to the upper end of each first fixed rod 22 and each second fixed rod 24 .

A rotating shaft 26 is rotatably connected between every two opposite fixed blocks 25, and a positioning bar 27 is arranged upward on the upper end of each rotating shaft 26 outer wall, and an inclination sensor 28 is installed on the upper end of each positioning bar 27 outer wall. , one side of the upper end of each fixed mount 21 is provided with a U-shaped frame 29 on the upper end of the corresponding positioning bar 27 outer wall and on the side of the corresponding inclination sensor 28, and a runner 3 is connected with the left and right sides of the U-shaped frame 29 inner wall for rotation. , the outer wall of each runner 3 is wound with a fixed wire 31, the upper end of each U-shaped frame 29 outer wall side is provided with a fixed groove 33 downwards, and the free end of each fixed wire 31 is provided with a Corresponding to the wedge block 32 that is matched with the fixing groove 33 and slides up and down, a mainspring 35 is connected between the left and right sides of the outer wall of each runner 3 and the inner wall of the corresponding side of the corresponding U-shaped frame 29 .

The left and right sides of the control panel 13 are provided with a number of jacks 16 that are distributed in an array and are electrically connected to it. One side of the bottom of the inner wall of the box body 19 is provided with a wire box 36 with an open upper end. Inside the wire box 36 A plurality of connecting wires 37 are placed to be electrically connected to the jack 16 and the inclination sensor 28 and are detachably connected thereto. The battery 38 , the control panel 13 and the data processing module 18 are all electrically connected to the controller 17 .

How to use: When in use, first bring the device to the position of the concrete component to be measured through the universal wheel 11, open the box cover 2, take out the fixing frames 21 from the box body 19 one by one, and then rotate according to the size of the concrete component Threaded rod 23, let the second fixed rod 24 close to the first fixed rod 22 to fix the fixed frame 21 on the concrete member. When fixing the fixed frame 21, let the fixed frame 21 be in a horizontal state through the bubble level 34. The lowest position of the concrete member needs Install a fixing frame 21. As we all know, the closer to the connection point, the component part has the smallest deformation or even no deformation. The other fixing frames 21 are fixed from bottom to top and fixed from different angles, so as to measure the shear of the core area of the concrete component. Cut the deformation value, after the fixing is completed, rotate the positioning bar 27 by the rotating shaft 26, attach it to the outer wall of the concrete member, pull the fixing line 31 to drive the runner 3 on the U-shaped frame 29 to rotate and bypass the concrete member to place the fixed frame 21 Another positioning strip 27 of the other positioning bar is attached to the outer wall of the concrete member, and then the wedge 32 on the fixing line 31 is put into the fixing groove 33 to fix it, and the runner 3 pulls the fixing line 31 under the rebound effect of the mainspring 35. tight.

Turn the support plate 12 on the base 1 to turn it out, take out the connecting wire 37 in the wire box 36, connect one end to the inclination sensor 28, and insert the other end in the jack 16 of the control panel 13, and the battery 38 provides electric energy, operates the operating button 15 on the control panel 13, first allows the inclination sensor 28 at the bottom of the concrete member to start working, and displays it on the display screen 14 after measuring the initial value, and then operates the control panel 13, through the controller 17 Control other inclination sensors 28 to start working, and each inclination sensor 28 then tilts the corresponding angle according to the degree of deformation of the corresponding measurement position, and the measured value is transmitted to the data processing module 18 through the connection line 37 and compared with the initial value in the Displayed on the display screen 14, the data processing module 18 can measure the shear deformation degree of the core area of the concrete member after integrating the measured data and comparing it with the initial value.

This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

Claims (6)

1. The utility model provides a concrete member core space shearing deformation's testing arrangement, includes front end open-ended base (1), its characterized in that: a box body (19) with an opening at the upper end is arranged at the upper end of the base (1), a box cover (2) used for covering the opening end of the box body (19) is hinged to one side of the opening end of the box body (19), a storage battery (38) is arranged upwards at the bottom of the inner wall of the base (1), a supporting plate (12) which is matched with the upper end of the opening end of the base (1) and can rotate up and down is arranged downwards at the upper end of the opening end of the base (1), a control panel (13) is arranged on the outer wall of the supporting plate (12), the control panel (13) comprises a display screen (14) and a plurality of operating buttons (15) arranged on one side of the display screen (14), and a controller (17) and a data processing module (18) are arranged behind the control panel (13) in the supporting plate (12);

a plurality of U-shaped fixing frames (21) which are arranged along the height direction of the box body (19) are placed in the box body (19), each fixing frame (21) comprises a first fixing rod (22), a threaded rod (23) which penetrates through the first fixing rod (22) and is rotatably connected with the first fixing rod, and a second fixing rod (24) which is in threaded connection with the threaded rod (23) and is arranged opposite to the first fixing rod (22), and fixing blocks (25) are arranged at the upper ends of each first fixing rod (22) and each second fixing rod (24) oppositely;

all rotate between per two relative fixed block (25) that set up and be connected with pivot (26), the upper end of each pivot (26) outer wall all upwards is provided with location strip (27), and inclination sensor (28) are all installed to the upper end of each location strip (27) outer wall, a plurality of jacks (16) that are array distribution and all electricity even with it are seted up to all inwards setting up in the left and right sides of control panel (13), one side of box (19) inner wall bottom is provided with upper end open-ended line box (36), place in line box (36) a plurality of with jack (16) reach inclination sensor (28) cooperation electricity just all can dismantle connecting wire (37) of being connected with it, battery (38) control panel (13) data processing module (18) all with controller (17) electricity links.

2. The apparatus for testing shear deformation of a core region of a concrete member according to claim 1, wherein: the bottom of the outer wall of the base (1) is rotatably connected with a plurality of universal wheels (11) distributed in an array manner.

3. The apparatus for testing shear deformation of a core region of a concrete member according to claim 1, wherein: one side of the upper end of the outer wall of each first fixing rod (22) and each second fixing rod (24) is provided with a bubble level meter (34).

4. The apparatus for testing shear deformation of a core region of a concrete member according to claim 1, wherein: one side of the upper end of each fixing frame (21) is provided with a U-shaped frame (29) on one side corresponding to the inclination angle sensor (28) on the upper end of the outer wall of the corresponding positioning strip (27), the left side and the right side of the inner wall of the U-shaped frame (29) are matched and rotatably connected with rotating wheels (3), and the outer wall of each rotating wheel (3) is wound with a fixing wire (31).

5. The apparatus for testing shear deformation in a core region of a concrete member according to claim 4, wherein: the upper end of one side of the outer wall of each U-shaped frame (29) is downwards provided with a fixing groove (33), and the free end of each fixing line (31) is provided with a wedge block (32) which is matched with the corresponding fixing groove (33) and slides up and down with the fixing groove.

6. The apparatus for testing shear deformation of a core region of a concrete member according to claim 4, wherein: a clockwork spring (35) is connected between the left side and the right side of the outer wall of each rotating wheel (3) and the inner wall of the corresponding side of the corresponding U-shaped frame (29) in a matching way.

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