House building anti-seismic structure testing device
By using a multi-angle testing device, the problem of the single dimension in traditional building seismic testing is solved, and a more comprehensive and reliable seismic testing effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional seismic testing methods for buildings are limited in scope and lack sufficient testing dimensions, resulting in unreliable test results.
A multi-angle testing device is adopted, which controls the swaying table to move back and forth through the drive component, and uses the turntable and T-pin to realize multi-directional testing. Combined with the hydraulic cylinder to keep it locked, the testing accuracy is ensured.
Multi-dimensional seismic testing was achieved, resulting in more reliable test results, reduced errors caused by vibration, and improved test accuracy.
Smart Images
Figure CN224051546U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of seismic testing technology for buildings, and in particular to a seismic testing device for building structures. Background Technology
[0002] Seismic testing is a crucial part of seismic design for buildings, especially in the early design stages and during reinforcement and renovation processes, as it provides data support for assessing actual seismic capacity and strengthening buildings.
[0003] Traditional seismic testing methods typically involve shaking the building structure in only one direction. This method is limited in its scope and the results are unreliable. Therefore, further improvements are needed. Utility Model Content
[0004] To achieve more comprehensive testing dimensions and more reliable test results, this application provides a testing device for seismic-resistant building structures.
[0005] The seismic resistance testing device for building structures provided in this application adopts the following technical solution:
[0006] A seismic resistance testing device for buildings includes a base and a swaying platform mounted on the base. The swaying platform is slidably arranged in the horizontal direction and is controlled to move back and forth by a drive component. A turning platform is rotatably mounted on the top of the swaying platform. The turning platform is used to support the building structure to be tested and fix it in place. The turning platform can be rotated and adjusted.
[0007] By adopting the above technical solution, during the testing process, after fixing the turntable, the building structure to be tested is placed and fixed on the turntable. Then, the driving mechanism controls the shaking table to swing back and forth at a certain frequency to conduct seismic tests on the building structure. After completing the test in one direction, the orientation of the building structure is readjusted by rotating and adjusting the turntable to conduct seismic tests in different directions. This testing method can conduct seismic tests on the building structure from different directional dimensions, providing a more comprehensive testing scope and more reliable test results.
[0008] Optionally, the driving component includes a motor, a drive shaft, and a drive rod. The drive shaft is vertically and rotatably mounted on the base, and the motor and the drive shaft are driven by a meshing bevel gear pair. The drive rod is "U"-shaped, with one end rotatably connected to a shaking platform. A turntable is fixedly mounted on the top of the drive shaft, and the other end of the drive rod is rotatably connected to the turntable and is eccentrically positioned relative to the drive shaft.
[0009] Through the above technical scheme, in the working process, the motor drives the transmission shaft to rotate through the intermeshing bevel gear pair, and the rotating shaft controls the back-and-forth movement of the shaking table through the top turntable and the transmission rod.
[0010] Optionally, the turning table is provided with locking holes in the circumferential direction, and the locking holes are uniformly arranged; the shaking table is provided with lower locking holes, the lower locking holes can be aligned with any lower locking hole, and the upper locking holes and the lower locking holes are connected through T-shaped pins.
[0011] Through the above technical scheme, when the angle of the turning table is adjusted, the upper locking hole and the lower locking hole are locked by inserting the T-shaped pin after alignment. Similarly, when another angle needs to be adjusted for testing, the T-shaped pin is pulled out for re-adjustment.
[0012] Optionally, the bottom of the lower insertion part of the T-shaped pin is rounded.
[0013] Through the above technical scheme, the bottom of the lower insertion part of the T-shaped pin is rounded, which facilitates the insertion and connection of the T-shaped pin.
[0014] Optionally, a first hydraulic cylinder is installed above the lower locking hole, the first hydraulic cylinder is fixedly installed on the shaking table and is arranged downward, and a pressing plate is installed on the piston cylinder end of the first hydraulic cylinder.
[0015] Through the above technical scheme, before testing, the T-shaped pin is pressed by the pressing plate through the first hydraulic cylinder, so that the T-shaped pin is prevented from loosening and the relative shaking between the turning table and the shaking table is prevented from occurring during the test process due to vibration, thereby affecting the actual test result.
[0016] Optionally, a second hydraulic cylinder is installed below the lower locking hole, the second hydraulic cylinder is fixedly installed on the top of the base table and is aligned upward to the lower locking hole, and the piston rod of the second hydraulic cylinder is smaller than the lower locking hole.
[0017] Through the above technical scheme, after the T-shaped pin is inserted, it is kept in a tightly locked state due to the action of the first hydraulic cylinder and the pressing plate. When the angle of the turning table needs to be adjusted, it is relatively laborious to directly pull out the T-shaped pin. Therefore, the second hydraulic cylinder can be used to push the T-shaped pin upward, which facilitates the removal of the T-shaped pin and the subsequent adjustment of the turning table.
[0018] Optionally, the included angle between two adjacent upper locking holes is 30°≤θ≤90°.
[0019] In summary, the present application has at least one of the following beneficial technical effects:
[0020] 1. In the process of seismic test of house building structure, the turning table can be used to adjust the house building structure at multiple angles, and the seismic test of the house building structure is carried out from different directions, so that the test dimensions are more comprehensive, and the test results are more reliable.
[0021] 2. Before the test, the first hydraulic cylinder is used to press the T-shaped pin through the pressing plate, so that the T-shaped pin is not loose during the test due to vibration, and the relative shaking between the turning table and the shaking table is avoided, so that the actual test results are affected.
[0022] 3. When the T-shaped pin is inserted, the first hydraulic cylinder and the pressing plate keep the T-shaped pin in a tightly locked state. When the angle of the turning table needs to be adjusted, it is laborious to pull out the T-shaped pin directly. Therefore, the second hydraulic cylinder can be used to push out the T-shaped pin upward, so that the T-shaped pin is convenient to take out and the subsequent adjustment of the turning table is convenient. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 is the overall structure schematic diagram of the house building seismic structure test device of the application.
[0024] Figure 2 is the front view of the house building seismic structure test device of the application.
[0025] Figure 3 is the sectional view of the installation position of the T-shaped pin in the application.
[0026] BRIEF DESCRIPTION OF DRAWINGS:
[0027] 1, base; 2, shaking table; 3, driving part; 31, motor; 32, transmission shaft; 33, transmission rod; 4, turning table; 5, sliding rail; 6, sliding block; 7, upper locking port; 8, lower locking port; 9, T-shaped pin; 10, first hydraulic cylinder; 11, pressing plate; 12, second hydraulic cylinder; 100, house building structure. DETAILED DESCRIPTION
[0028] The following will be described in detail in combination with the accompanying Figures 1-3 The application will be further described in detail.
[0029] The application embodiment discloses a house building seismic structure test device.
[0030] Refer to Figure 1 and Figure 2 , a house building seismic structure test device, comprising a base 1 and a shaking table 2 installed on the base 1; wherein the shaking table 2 is slidingly arranged along the left-right horizontal direction and is controlled to move back and forth by a driving part 3. A turning table 4 is rotatably installed on the top of the shaking table 2, and the turning table 4 is used to support and fix the house building structure 100 to be tested, and the turning table 4 can be adjusted in rotation.
[0031] During the test, the turning table 4 is fixed, and then the building structure 100 to be tested is placed and fixed on the turning table 4. Then, the shaking table 2 is controlled to move back and forth at a certain frequency by the driving member 3, so as to perform the anti-seismic test on the building structure 100 to be tested. When the test in this direction is completed, the building structure 100 to be tested is re-adjusted in direction by rotating the turning table 4, so as to perform the anti-seismic test in different directions. In this way, the building structure 100 can be tested in different directions, and the test dimension is more comprehensive, and the test result is more reliable.
[0032] With reference to Figure 2 In the embodiment, the shaking table 2 is slidably installed on the base table 1 in the left-right direction by the sliding rail 5 and the sliding block 6. In other embodiments, the shaking table 2 can be slidably installed on the base table 1 in the left-right direction by a ground rail. In the embodiment, the turning table 4 is rotatably installed on the shaking table 2 by the upper and lower annular guide rails.
[0033] With reference to Figure 2 Specifically, in the embodiment, the driving member 3 includes a motor 31, a transmission shaft 32, and a transmission rod 33. The transmission shaft 32 is vertically rotatably installed on the base table 1, and the motor 31 and the transmission shaft 32 are in transmission by a pair of meshing bevel gears. The transmission rod 33 is in the shape of a “T”. One end of the transmission rod 33 is rotatably connected to the shaking table 2. The top of the transmission shaft 32 is fixedly installed with a rotating disc. The other end of the transmission rod 33 is rotatably connected to the rotating disc and is eccentrically arranged with the transmission shaft 32. In the working process, the motor 31 drives the transmission shaft 32 to rotate by the pair of meshing bevel gears. The transmission shaft drives the shaking table 2 to move back and forth by the rotating disc at the top and the transmission rod 33.
[0034] In other embodiments, the motor 31 and the transmission shaft in the driving member 3 can be in transmission by a worm and gear.
[0035] With reference to Figure 2 Specifically, in the embodiment, the turning table 4 is provided with a plurality of locking holes 7 arranged at intervals around the circumference of the turning table 4. The shaking table 2 is provided with a plurality of locking holes 8. Any two of the locking holes 8 can be aligned, and the locking holes 7 and the locking holes 8 are connected by a T-shaped pin 9. When the angle of the turning table 4 is adjusted, the aligned locking holes 7 and 8 are inserted into the T-shaped pin 9 for locking. Similarly, when another angle needs to be adjusted for testing, the T-shaped pin 9 is pulled out for re-adjustment.
[0036] In the embodiment, the number of the locking holes 8 is two, and they are arranged on the left and right sides, respectively. The included angle between the locking holes 7 is 30°≤θ≤90°, and preferably, the included angle between the locking holes 7 is 45°.
[0037] With reference toFigure 3 In the embodiment, the bottom of the lower insertion part of the T-shaped pin 9 is rounded to facilitate the insertion of the T-shaped pin 9.
[0038] Referring to Figure 3 Specifically, in the embodiment, the first hydraulic cylinder 10 is installed above the lower locking hole 8, the first hydraulic cylinder 10 is fixedly installed on the shaking table 2 and is arranged downward, and the piston cylinder end of the first hydraulic cylinder 10 is provided with the pressing plate 11. The second hydraulic cylinder 12 is installed below the lower locking hole 8, the second hydraulic cylinder 12 is fixedly installed on the top of the base 1, is aligned upward to the lower locking hole 8, and the piston rod of the second hydraulic cylinder 12 is smaller than the lower locking hole 8.
[0039] On the one hand, before the test, the T-shaped pin 9 is pressed by the pressing plate 11 through the first hydraulic cylinder 10, so that the T-shaped pin 9 is prevented from loosening during the test due to the influence of vibration, and relative shaking between the steering table 4 and the shaking table 2 is prevented, so that the actual test result is affected. On the other hand, after the T-shaped pin 9 is inserted, it is kept in a tightly locked state due to the action of the first hydraulic cylinder 10 and the pressing plate 11. When the angle of the steering table 4 needs to be adjusted, it is relatively laborious to directly pull out the T-shaped pin 9. Therefore, the second hydraulic cylinder 12 can be used to push the T-shaped pin 9 upward, so that the T-shaped pin 9 is convenient to take out and the subsequent adjustment of the steering table 4 is facilitated.
[0040] The implementation principle is that: during the test, after the steering table 4 is fixed, the building structure 100 to be tested is placed and fixed on the steering table 4. Then the shaking table 2 is controlled by the driving part 3 to shake back and forth at a certain frequency to test the building structure 100 to be tested. After the test in this direction is completed, the direction of the building structure 100 to be tested is adjusted by rotating the steering table 4, and different direction seismic tests are performed. This test method can test the building structure 100 from different directions, and the test dimension is more comprehensive, and the test result is more reliable.
[0041] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.
Claims
1. A test device for seismic resistance of building structures, characterized in that: It includes a base (1) and a shaking table (2) installed on the base (1). The shaking table (2) is slidably arranged in the horizontal direction and is controlled by a driving member (3) to move back and forth. A steering table (4) is rotatably installed on the top of the shaking table (2). The steering table (4) is used to support and fix the to-be-tested building structure (100) for placement, and the steering table (4) can be rotationally adjusted.
2. The seismic resistance testing device for buildings according to claim 1, characterized in that: The driving member (3) includes a motor (31), a transmission shaft (32) and a transmission rod (33). The transmission shaft (32) is vertically and rotatably installed on the base (1), and the motor (31) and the transmission shaft (32) are driven by a bevel gear pair that meshes with each other. The transmission rod (33) is in the shape of "冖". One end of the transmission rod (33) is rotatably connected to the shaking table (2). A turntable is fixedly installed at the top of the transmission shaft (32). The other end of the transmission rod (33) is rotatably connected to the turntable and is eccentrically arranged with respect to the transmission shaft (32).
3. The seismic resistance testing device for buildings according to claim 1, characterized in that: An upper locking port (7) is formed around the circumference of the steering table (4), and the upper locking ports (7) are arranged at uniform intervals. A lower locking port (8) is formed on the shaking table (2). The lower locking port (8) can be aligned with any one of the lower locking ports (8), and the upper locking port (7) and the lower locking port (8) are connected by a T-shaped pin (9).
4. The seismic resistance testing device for buildings according to claim 3, characterized in that: The bottom of the inserted part of the T-shaped pin (9) is rounded.
5. The seismic resistance testing device for buildings according to claim 3, characterized in that: A first hydraulic cylinder (10) is installed above the lower locking port (8). The first hydraulic cylinder (10) is fixedly installed on the shaking table (2) and is arranged downward, and a pressing plate (11) is installed at the piston cylinder end of the first hydraulic cylinder (10).
6. The seismic resistance testing device for buildings according to claim 3, characterized in that: A second hydraulic cylinder (12) is installed below the lower locking port (8). The second hydraulic cylinder (12) is fixedly installed on the top of the base (1) and is aligned upward with the lower locking port (8), and the piston rod of the second hydraulic cylinder (12) is smaller than the lower locking port (8).
7. The seismic resistance testing device for buildings according to claim 3, characterized in that: The included angle between two adjacent upper locking ports (7) is 30° ≤ θ ≤ 90°.