Building anti-seismic performance detection device

Abstract

The utility model discloses a building anti-seismic performance detection device, which belongs to the technical field of building anti-seismic detection and comprises a first support, a second support is vertically and slidably connected to the inner side of the first support, and a third support is transversely and slidably connected to the inner side of the second support. When an anti-seismic experiment is carried out on the building model, the supporting legs of the building model are fixedly connected with the base through welding, the longitudinal vibration motor is started, the longitudinal vibration motor is matched with the first spring to drive the second support to vertically vibrate, then the building model is driven to vertically vibrate, longitudinal waves of an earthquake are simulated, and then the transverse vibration motor is started. The transverse vibration motor cooperates with the second spring to drive the building model to transversely vibrate and simulate transverse waves of an earthquake, longitudinal waves and transverse waves of the earthquake can be simulated through the building anti-seismic performance detection device, the building anti-seismic performance can be detected more comprehensively, and the detection accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of building seismic testing technology, specifically a building seismic performance testing device. Background Technology

[0002] Building seismic testing is the testing of a building structure's seismic resistance. During testing, a building model is typically placed on a vibration testing platform.

[0003] Current building seismic performance testing devices, such as the one proposed in publication number CN220418777U, have the technical effect of detecting the deviation dimensional data of the building seismic model after vibration.

[0004] Existing building seismic performance testing devices have limitations. They typically only detect longitudinal vibrations, while earthquakes involve both longitudinal and transverse waves. These devices have limited functionality and cannot perform comprehensive testing on a 1:1 scale building model. Therefore, we propose a new building seismic performance testing device to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide a building seismic performance testing device that can simulate the P-waves and S-waves of an earthquake, enabling a more comprehensive test of the building's seismic performance and improving the accuracy of the test.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a building seismic performance testing device, comprising a first support, a second support slidably connected vertically to the inner side of the first support, and a third support slidably connected laterally to the inner side of the second support, wherein...

[0007] The top of the third support is rotatably connected to a base, and the top of the base is fixedly connected to a building model. The bottom of the second support is symmetrically equipped with longitudinal vibration motors, and the four corners of the bottom of the second support are connected to the bottom of the inner side of the first support through a first spring.

[0008] A transverse vibration motor is installed on the inner bottom of the third bracket. The two sides of the third bracket are connected to the inner wall of the second bracket by second springs. The base is rotated by a rotation control mechanism.

[0009] Preferably, the first bracket has a first groove symmetrically formed on the inner wall near the second bracket, and the second bracket has a first slider fixedly connected to the outer side of the first groove.

[0010] Preferably, the second bracket has a second sliding groove at the bottom inner side corresponding to the third bracket, and the third bracket has a second slider fixedly connected to the bottom of the second sliding groove.

[0011] Preferably, the rotation control mechanism includes a rotating shaft, the base is rotatably connected to the third bracket via the rotating shaft, a worm gear is fixedly connected to one end of the rotating shaft inside the third bracket, a servo motor is installed on the top inner side of the third bracket, and a worm is installed on the shaft end of the servo motor corresponding to the worm gear.

[0012] Preferably, the tooth pitch of the worm is equal to the tooth pitch of the worm wheel, and the worm wheel meshes with the worm.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. In this utility model, when conducting seismic tests on a building model, the model's legs are fixedly connected to the base by welding. A longitudinal vibration motor is started, which, in conjunction with a first spring, drives the second support to vibrate vertically, thereby causing the building model to vibrate vertically, simulating the longitudinal wave of an earthquake. Then, a transverse vibration motor is started, which, in conjunction with a second spring, drives the building model to vibrate horizontally, simulating the transverse wave of an earthquake. Through this building seismic performance testing device, both longitudinal and transverse waves of an earthquake can be simulated, enabling a more comprehensive test of the building's seismic performance and improving the accuracy of the test.

[0015] 2. In this utility model, when the third support causes the building model to vibrate laterally, a servo motor drives the worm gear to rotate. The worm gear drives the worm wheel to rotate through meshing. The worm wheel drives the base to rotate through the rotating shaft, thereby causing the building model to rotate. At the same time as the rotation, the lateral movement direction of the third support is fixed, which can simulate the situation of the building model being subjected to seismic shear waves in different directions, and further improve the accuracy of seismic resistance testing of buildings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A magnified view of the structure at point A in the middle;

[0018] Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure at point B in the middle.

[0019] In the diagram: 1. First support; 2. Second support; 3. First slide rail; 4. First slider; 5. Third support; 6. Second slide rail; 7. Second slider; 8. Base; 9. Architectural model; 10. Longitudinal vibration motor; 11. First spring; 12. Lateral vibration motor; 13. Second spring; 14. Rotating shaft; 15. Worm gear; 16. Servo motor; 17. Worm. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example:

[0022] Please see Figures 1 to 3 This utility model provides a technical solution: a building seismic performance testing device, including a first support 1, a second support 2 vertically slidably connected to the inner side of the first support 1, and a third support 5 horizontally slidably connected to the inner side of the second support 2, wherein...

[0023] The top of the third support 5 is rotatably connected to the base 8, and the top of the base 8 is fixedly connected to the building model 9. The bottom of the second support 2 is symmetrically equipped with longitudinal vibration motors 10, and the four corners of the bottom of the second support 2 are connected to the bottom of the inner side of the first support 1 through the first spring 11.

[0024] A transverse vibration motor 12 is installed on the inner bottom of the third support 5. The two sides of the third support 5 are connected to the inner wall of the second support 2 through the second spring 13. The base 8 controls its rotation through a rotation control mechanism.

[0025] During the seismic test on building model 9, the legs of building model 9 are fixedly connected to the base 8 by welding. The longitudinal vibration motor 10 is started, and the longitudinal vibration motor 10, together with the first spring 11, drives the second support 2 to vibrate vertically, thereby causing the building model 9 to vibrate vertically, simulating the longitudinal wave of an earthquake. Then, the transverse vibration motor 12 is started, and the transverse vibration motor 12, together with the second spring 13, drives the building model 9 to vibrate horizontally, simulating the transverse wave of an earthquake. Through this building seismic performance testing device, the longitudinal and transverse waves of an earthquake can be simulated, enabling a more comprehensive test of the building's seismic performance and improving the accuracy of the test.

[0026] Please see Figures 1 to 3The first support 1 has a first groove 3 symmetrically formed on the inner wall near the second support 2. The second support 2 is fixedly connected to the outer side of the first groove 3. The second support 2 has a second groove 6 formed on the bottom inner side of the third support 5. The third support 5 is fixedly connected to the bottom of the second groove 6. When the second support 2 drives the building model 9 to vibrate longitudinally, the second support 2 drives the first slider 4 to slide in the first groove 3. The first slider 4 and the first groove 3 guide the lifting and lowering of the second support 2 to prevent the second support 2 from deviating due to lifting and lowering. When the third support 5 drives the building model 9 to vibrate laterally, the third support 5 drives the second slider 7 to slide in the second groove 6. The second slider 7 and the second groove 6 guide the movement of the third support 5 to prevent the movement of the third support 5 from deviating.

[0027] Please see Figures 1 to 3 The rotation control mechanism includes a rotating shaft 14. The base 8 is rotatably connected to the third support 5 via the rotating shaft 14. One end of the rotating shaft 14 is fixedly connected to a worm gear 15 inside the third support 5. A servo motor 16 is installed on the top inner side of the third support 5. A worm 17 is installed on the shaft end of the servo motor 16 corresponding to the worm gear 15. The tooth pitch of the worm 17 is equal to the tooth pitch of the worm gear 15, and the worm gear 15 meshes with the worm 17. When the third support 5 causes the building model 9 to vibrate laterally, the servo motor 16 drives the worm 17 to rotate. The worm 17 drives the worm gear 15 to rotate through meshing. The worm gear 15 drives the base 8 to rotate via the rotating shaft 14, thereby driving the building model 9 to rotate. At the same time as the rotation, the lateral movement direction of the third support 5 is fixed, thus simulating the situation of the building model 9 being subjected to seismic shear waves in different directions, further improving the accuracy of seismic detection of buildings.

[0028] Working Principle: This seismic performance testing device for buildings, when conducting a seismic test on a building model 9, fixes the legs of the building model 9 to the base 8 by welding. The longitudinal vibration motor 10 is activated, and the longitudinal vibration motor 10, in conjunction with the first spring 11, drives the second support 2 to vibrate vertically, thereby causing the building model 9 to vibrate vertically, simulating the longitudinal wave of an earthquake. Then, the transverse vibration motor 12 is activated, and the transverse vibration motor 12, in conjunction with the second spring 13, drives the building model 9 to vibrate horizontally, simulating the transverse wave of an earthquake. This seismic performance testing device can simulate both the longitudinal and transverse waves of an earthquake, enabling a more comprehensive test of the building's seismic performance and improving testing accuracy. Furthermore, when the second support 2 drives the building model 9 to vibrate longitudinally, the second support 2 drives the first slider 4 to slide within the first slide groove 3. The first slide 3 guides the lifting and lowering of the second support 2, preventing the second support 2 from shifting during lifting and lowering. When the third support 5 causes the building model 9 to vibrate laterally, the third support 5 drives the second slider 7 to slide within the second slide 6. The second slider 7 and the second slide 6 guide the movement of the third support 5, preventing the movement of the third support 5 from shifting. When the third support 5 causes the building model 9 to vibrate laterally, the servo motor 16 drives the worm gear 17 to rotate. The worm gear 17 drives the worm wheel 15 to rotate through meshing. The worm wheel 15 drives the base 8 to rotate through the rotating shaft 14, thereby causing the building model 9 to rotate. At the same time as the rotation, the lateral movement direction of the third support 5 is fixed, thus simulating the situation of the building model 9 being subjected to seismic shear waves in different directions, further improving the accuracy of seismic detection of buildings.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A building seismic performance testing device, comprising a first support (1), characterized in that: The inner side of the first bracket (1) is vertically slidably connected to the second bracket (2), and the inner side of the second bracket (2) is horizontally slidably connected to the third bracket (5). The top of the third support (5) is rotatably connected to a base (8), and the top of the base (8) is fixedly connected to a building model (9). The bottom of the second support (2) is symmetrically equipped with a longitudinal vibration motor (10), and the four corners of the bottom of the second support (2) are connected to the bottom of the inner side of the first support (1) through a first spring (11). A transverse vibration motor (12) is installed on the inner bottom of the third support (5). The two sides of the third support (5) are connected to the inner wall of the second support (2) through the second spring (13). The base (8) is rotated by a rotation control mechanism.

2. The building seismic performance testing device according to claim 1, characterized in that: The first bracket (1) has a first groove (3) symmetrically opened on the inner wall near the second bracket (2), and the second bracket (2) has a first slider (4) fixedly connected to the outer side of the first groove (3).

3. The building seismic performance testing device according to claim 1, characterized in that: The second bracket (2) has a second groove (6) at the bottom of the inner side corresponding to the third bracket (5), and the third bracket (5) has a second slider (7) fixedly connected to the bottom of the second groove (6).

4. The building seismic performance testing device according to claim 1, characterized in that: The rotation control mechanism includes a rotating shaft (14), and the base (8) is rotatably connected to the third bracket (5) through the rotating shaft (14). The rotating shaft (14) is located inside the third bracket (5) and one end is fixedly connected to a worm gear (15). A servo motor (16) is installed on the top inner side of the third bracket (5), and a worm (17) is installed on the shaft end of the servo motor (16) corresponding to the worm gear (15).

5. The building seismic performance testing device according to claim 4, characterized in that: The tooth pitch of the worm (17) is equal to the tooth pitch of the worm wheel (15), and the worm wheel (15) meshes with the worm (17).

Images