Earthquake-proof experiment device for civil structure
By setting up a support mechanism on the seismic experimental device of civil structures and using movable chain plates and ropes to control the placement of collapsed building materials, the smoke and dust and flying chips caused by the collapse of the building on the vibration platform are solved, the safety of the experimenter is protected and the building materials are made repeatable Utilization reduces economic losses.
Patent Information
- Application Number
- CN202411497651.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the vibration process of existing seismic experimental equipment of civil structures, the vibration amplitude is too high, causing the building to collapse. The collapsed building materials have smoke and dust and flying chips that have fallen into the ground, endangering personnel's safety and damaging the instruments outside the vibration table. The building materials are difficult to reuse, causing economic losses. .
A support mechanism including a vibration table is designed, using a combination of movable chain plate, rope and limit wheel, the form of movable chain plate is controlled by electric push rod and motor, and the collapsed building materials are lifted and placed stably on On the ground, reduce smoke and vibration, protect personnel safety, and make building materials reusable.
It effectively reduces smoke and dust during collapse, protects the safety of experimental personnel, avoids damage to building materials, realizes the reuse of building materials, and reduces economic losses.
Smart Images
Figure CN119147199A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of earthquake-resistant experimental devices, in particular to an earthquake-resistant experimental device for civil engineering structures. Background Art
[0002] The stability of civil structures is crucial for buildings. my country has a vast territory, and some areas are located in earthquake zones and are often plagued by earthquakes. The safety responsibility of civil structures is heavy, which may cause economic losses or endanger life safety. Before the construction of a building, it is necessary to replicate the structural model of the building and place it on a vibration table to simulate an earthquake, so as to conduct seismic tests on the civil structure. In the prior art, during the use of the vibration table, some buildings collapsed due to the high vibration amplitude. The collapsed concrete, stone bricks, and wood will fall to the surrounding ground due to the collapse, raising a lot of smoke and dust. At the same time, after the collapse of concrete, stone bricks, wood and other building materials, they fall to the ground, which may be damaged by the impact force and difficult to reuse. At the same time, flying debris may be splashed to the surroundings, endangering the safety of the staff. At the same time, the huge vibration caused by the collapse of the building may damage the instruments outside the vibration table. Summary of the invention
[0003] The purpose of the present invention is to provide a civil structure earthquake resistance test device to solve the problems raised in the background technology.
[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: comprising a supporting mechanism arranged on a vibration table;
[0005] The supporting mechanism includes a movable chain plate rotatably provided on the vibration table, a protective film is fixedly provided on the side of the movable chain plate facing the center of the vibration table, a rotating rod is rotatably provided on the top of each movable chain plate, both ends of the rotating rod are fixedly connected to corresponding ropes, and a limiting wheel is movably provided on the side of the movable chain plate away from the protective film.
[0006] Preferably, the limiting wheel is rotatably arranged on the fixing plate, both ends of the fixing plate are connected to the corresponding electric push rods, the fixing plate is fixedly connected to the telescopic end of the electric push rod, and the fixed end of the electric push rod is fixedly connected to the base.
[0007] Preferably, the other end of the rope is fixedly connected to the corresponding drum, each pair of the drums are equidistantly arranged and rotatably arranged on the base, and a motor is also fixedly provided on the base, and the motor shaft of the motor is fixedly connected to the corresponding drum.
[0008] Preferably, the movable chain plate is formed by hingedly connecting chain plates and connecting plates arranged equidistantly, each chain plate in the same movable chain plate is adjacent to each other, and every two chain plates are hingedly connected through the connecting plate.
[0009] Preferably, a vibration mechanism is provided under the vibration table, and the vibration table is fixedly connected to the base through the vibration mechanism. The base is provided with a groove, and the vibration table is arranged in the groove. The base is also fixedly provided with a top plate, and a camera is fixedly provided on the top plate. The base is also fixedly provided with a console.
[0010] Compared with the prior art, the present invention has the following beneficial effects: the present invention sets a supporting mechanism, sets movable chain plates around the vibration table, and controls the shape of the movable chain plates by pulling with ropes and cooperating with limiting wheels. The collapsed debris is lifted up by the deformation of the movable chain plates, and is stably placed on the ground, thereby reducing the impact of the collapsed building materials on the ground, greatly reducing the smoke and dust caused by the collapse during the experiment, avoiding flying debris and huge vibrations caused by the collapse, protecting the safety of the staff around the experiment, and protecting some collapsed building materials, so that some building materials can be reused after the experiment, thereby saving economic expenditure. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the first overall structure of an embodiment of the present invention;
[0012] Figure 2 It is a schematic diagram of the second overall structure of an embodiment of the present invention;
[0013] Figure 3 This is a schematic diagram of the third overall structure of an embodiment of the present invention;
[0014] Figure 4 For the embodiment of the present invention Figure 2 The enlarged schematic diagram at A in the middle;
[0015] Figure 5 For the embodiment of the present invention Figure 3 The enlarged schematic diagram of point B in the middle;
[0016] In the figure: 11, base; 12, control console; 13, groove; 14, vibration table; 15, reel; 16, motor; 17, rope; 18, electric push rod; 19, limit wheel; 20, top plate; 21, protective film; 22, camera; 23, chain plate; 24, connecting plate; 25, fixed plate; 26, rotating rod; 27, movable chain plate; 61, supporting mechanism. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0018] Combined with Figure 1-Figure 5 , the civil engineering structure earthquake resistance test device comprises a supporting mechanism 61 arranged on a vibration table 14;
[0019] The supporting mechanism 61 includes a movable chain plate 27 rotatably provided on the vibration table 14, and a protective film 21 is fixedly provided on the side of the movable chain plate 27 facing the center of the vibration table 14. The protective film 21 is made of a soft material that is not easily cut by stones. A rotating rod 26 is rotatably provided on the top of each movable chain plate 27, and both ends of the rotating rod 26 are fixedly connected to the corresponding rope 17. A limiting wheel 19 is also movably provided on the side of the movable chain plate 27 away from the protective film 21, and the limiting wheel 19 is used to lift the movable chain plate 27 and limit it.
[0020] Advantageously, the limiting wheel 19 is rotatably disposed on the fixing plate 25 , both ends of the fixing plate 25 are connected to the corresponding electric push rods 18 , the fixing plate 25 is fixedly connected to the telescopic end of the electric push rod 18 , and the fixed end of the electric push rod 18 is fixedly connected to the base 11 .
[0021] Advantageously, the other end of the rope 17 is fixedly connected to the corresponding drum 15 , and each pair of the drums 15 are equidistantly arranged and rotatably arranged on the base 11 . The base 11 is also fixedly provided with a motor 16 , and the motor shaft of the motor 16 is fixedly connected to the corresponding drum 15 .
[0022] Advantageously, the movable chain plate 27 is formed by hingedly connecting chain plates 23 and connecting plates 24 arranged equidistantly. Each chain plate 23 in the same movable chain plate 27 is adjacent, and every two chain plates 23 are hingedly connected via the connecting plate 24 .
[0023] Advantageously, a vibration mechanism is provided below the vibration table 14, which is identical to the vibration table mechanism commonly found on the market. The vibration table 14 is fixedly connected to the base 11 through the vibration mechanism. The base 11 is provided with a groove 13, and the vibration table 14 is arranged in the groove 13. A top plate 20 is also fixedly provided on the base 11, and a camera 22 is fixedly provided on the top plate 20. The camera 22 is used to observe the building collapse of the vibration table 14. A control console 12 is also fixedly provided on the base 11, and the control console 12 is used to control all electric push rods, motors, and receive images and signals from the camera 22.
[0024] Method of use of the present invention:
[0025] In the initial state:
[0026] The rope 17 is in a taut state, the electric push rod 18 is in a fully extended state, the limiting wheel 19 is in contact with the movable chain plate 27, and the movable chain plates 27 on four sides form a rectangle.
[0027] When the user needs to use the present invention, the user needs to start the motor 16 and the electric push rod 18 through the console 12. The electric push rod 18 starts to shrink after starting. As the electric push rod 18 shrinks, it moves the limiting wheel 19 downward, and the active chain plate 27 falls by itself under the action of gravity. The motor 16 is started, and its motor shaft drives the corresponding reel 15 to rotate. After the reel 15 rotates, the rope 17 will be reeled in, thereby leaving space for the user to place the structural model. After the structural model is placed, the user starts the electric push rod 18 and the motor 16 again through the console 12. After the electric push rod 18 is started, it will start to extend and reset, thereby lifting the active chain plate 27 through the limiting wheel 19, thereby driving the active chain plate 27 to rise. After the motor 16 is started, its motor shaft will drive the reel 15 to rotate, thereby leaving space for the active chain plate 27 to rise.
[0028] Then the user can start the vibration mechanism under the vibration table 14 through the console 12, and the camera 22 monitors the situation of the structural model below in real time. When the structural model on the vibration table 14 begins to collapse due to vibration, the camera 22 will detect the direction of the collapse of the structural model, thereby transmitting a signal to the console 12. After receiving the signal transmitted by the camera 22, the console 12 will start the electric push rod 18 and the motor 16 in the corresponding direction. The electric push rod 18 will start to shrink when it starts, thereby driving the limiting wheel 19 to descend. At the same time, the motor 16 starts its motor shaft to drive the drum 15 to start winding the rope 17, thereby driving the collapsed object to fall toward it by itself, until the electric push rod 18 is completely retracted, the limiting wheel 19 drops to the lowest point, and the rope 17 straightens the active chain plate 27 to be horizontal, and the collapsed object falls together with the protective film 21 on the active chain plate 27. In the process of the active chain plate 27 falling, the rope 17 is straightened, which will make the active chain plate 27 fall. The movable chain plate 27 is suspended in the air, so that the collapsed objects on the movable chain plate 27 do not fall to the ground, thereby offsetting the impact force when the structural model partially collapses and avoiding secondary damage to the collapsed building materials. Then the console 12 drives the corresponding electric push rod 18 and the motor 16 again. After the motor 16 is started, it will drive the reel 15 to rotate and start to pay out the wire, so that one end of the movable chain plate 27 falls to the ground. After the electric push rod 18 is started, the electric push rod 18 will begin to extend, thereby driving the limit wheel 19 to move upward. After the limiting wheel 19 rises, it will lift up the movable chain plate 27, so that the movable chain plate 27 is gradually reset, and the collapsed building materials and fragments on the movable chain plate 27 are pulled by the rope 17 to the movable chain plate 27 and the limiting wheel 19 rises, so that the collapsed building materials and fragments on the movable chain plate 27 fall steadily on the base 11, thereby avoiding a large amount of dust and the impact caused by the falling of building materials during collapse, and then the movable chain plate 27 is reset to prevent the subsequent structural model from collapsing again.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A civil engineering structure earthquake resistance test device, comprising a supporting mechanism (61) arranged on a vibration table (14), characterized in that: The supporting mechanism (61) includes a movable chain plate (27) rotatably provided on the vibration table (14), a protective film (21) being fixedly provided on one side of the movable chain plate (27) facing the center of the vibration table (14), a rotating rod (26) being rotatably provided at the top end of each movable chain plate (27), both ends of the rotating rod (26) being fixedly connected to corresponding ropes (17), and a limiting wheel (19) being movably provided on the side of the movable chain plate (27) away from the protective film (21).
2. A civil engineering structure seismic test device according to claim 1, characterized in that: The limiting wheel (19) is rotatably arranged on the fixing plate (25), the two ends of the fixing plate (25) are connected to the corresponding electric push rods (18), the fixing plate (25) is fixedly connected to the telescopic end of the electric push rod (18), and the fixed end of the electric push rod (18) is fixedly connected to the base (11).
3. The civil engineering structure seismic test device according to claim 1, characterized in that: The other end of the rope (17) is fixedly connected to the corresponding drum (15), and each pair of the drums (15) are equidistantly arranged and rotatably disposed on the base (11).
4. The civil engineering structure seismic test device according to claim 3, characterized in that: A motor (16) is also fixedly disposed on the base (11), and a motor shaft of the motor (16) is fixedly connected to the corresponding reel (15).
5. The civil engineering structure seismic test device according to claim 1, characterized in that: The movable chain plate (27) is formed by hingedly connecting chain plates (23) and connecting plates (24) arranged at equal distances. Each chain plate (23) in the same movable chain plate (27) is adjacent to each other, and every two chain plates (23) are hingedly connected via the connecting plate (24).
6. The civil engineering structure seismic test device according to claim 1, characterized in that: A vibration mechanism is provided below the vibration table (14), and the vibration table (14) is fixedly connected to the base (11) via the vibration mechanism.
7. A civil engineering structure seismic test device according to claim 6, characterized in that: The base (11) is provided with a groove (13), the vibration platform (14) is arranged in the groove (13), and a top plate (20) is also fixedly provided on the base (11).
8. The civil engineering structure earthquake resistance test device according to claim 7, characterized in that: A camera (22) is fixedly provided on the top plate (20), and a control console (12) is also fixedly provided on the base (11).