Anti-seismic test device for civil engineering structural design
By designing a two-stage vibration mechanism and a clamping mechanism, the problem of incomplete simulation in existing seismic testing devices is solved, enabling comprehensive seismic performance testing of civil engineering structures and improving the seismic resistance of engineering structures.
Patent Information
- Application Number
- CN202520351545.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing seismic testing devices use a single-stage vibration mode, which cannot fully reproduce the complex process of an earthquake. This makes it difficult to expose potential weak points in building structures, resulting in poor seismic resistance of the designed engineering structures in real earthquakes.
A two-stage vibration mechanism, combining cylinders and springs, is used to simulate the complete process of an earthquake from the initial shock to the main shock. Electric push rods and clamping mechanisms ensure the stability and accurate vibration of the model during the test.
It enables comprehensive seismic performance testing of civil engineering structures, allowing for more realistic simulation of earthquake processes, exposure of potential weaknesses, and improvement of the seismic design quality of engineering structures.
Smart Images
Figure CN223727370U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to civil engineering technical field, concretely is civil engineering structure design and is used anti -seismic test device. BACKGROUND
[0002] Civil engineering structure design and are used anti -seismic test device is a kind of equipment specially used to simulate earthquake effect, the model or test piece of various civil engineering structures (such as building, bridge etc.) is carried out seismic performance test, and different types of anti -seismic test device have differences in function, precision, applicable scope, large-scale, high-precision device is used in scientific research institution or in-depth study to major engineering project;Relative simple device plays a role in some university teaching or general engineering early-stage test, and promotes the promotion of civil engineering seismic design level.
[0003] In actual engineering construction field, it is crucial to guarantee the safety of building structure in earthquake, when carrying out the model development of various engineering structure design, seismic performance detection is an indispensable key link, usually with the aid of anti -seismic test device to complete this task, at present, the anti -seismic test device of vast majority on market adopts the one-segment type vibration experiment method to carry out seismic experiment processing to model, however, this one-segment type vibration mode has obvious drawbacks, it only simulates single intensity vibration process, makes the structure stress condition too simple, idealized, in actual earthquake, seismic wave is complex and changeable, from the slight shaking of initial motion to the strong impact of main shock, to the sustained disturbance of aftershock, and one-segment type vibration is difficult to reproduce such rich seismic stage characteristics, for this reason, some potential weak links in model, such as joint connecting part in building structure, its hidden danger in complex stress conversion process, or the performance change of non-bearing but bearing key load transfer task component under different seismic intensity etc., it is difficult to fully expose in one-segment type vibration experiment, this leads to the engineering structure designed according to such experimental results, when facing real earthquake, may not achieve the expected seismic effect, cannot practically meet the urgent demand of building seismic safety in actual production and life;Therefore, in order to solve the above problems, civil engineering structure design and are used anti -seismic test device is proposed. UTILITY MODEL CONTENTS
[0004] The utility model mainly solves the technical problems in prior art, provides civil engineering structure design and is used anti -seismic test device.
[0005] In order to achieve the above object, the utility model provides the following technical scheme: Civil engineering structure design is with anti -seismic test device, including bottom plate, two section vibration mechanism, clamping mechanism and antiskid mechanism, two section vibration mechanism includes installation frame, the inside of installation frame is provided with installation groove, the inside fixedly connected with spring of installation groove, the upper end of spring is fixedly connected with experiment table, the upside of bottom plate is fixedly connected with mounting plate, one side of mounting plate is fixedly installed with electric push rod, one end of electric push rod is fixedly connected with moving plate, one side of moving plate is fixedly installed with air cylinder, the output of air cylinder is fixedly connected with connecting plate, connecting plate is fixedly connected with experiment table through screw, experiment table sets up at the upside position of installation frame, air cylinder is installed with two, installs respectively at both sides positions of moving plate.
[0006] Preferably, the installation frame is fixedly connected to the upper side of the bottom plate, and the mounting plate is fixedly connected to one side of the upper side of the bottom plate.
[0007] Preferably, the clamping mechanism comprises a motor, the output end of the motor is fixedly connected with a bidirectional threaded rod, the outside of the bidirectional threaded rod is provided with a clamping plate, the inside of the experiment table is provided with a limiting groove, the bidirectional threaded rod is arranged in the limiting groove, and one end of the bidirectional threaded rod is rotatably connected with one side of the limiting groove.
[0008] Preferably, the motor is fixedly installed on one side of the experiment table, the bidirectional threaded rod is threadedly connected with the clamping plate, the clamping plate is slidably connected with the limiting groove, the outside of the bidirectional threaded rod is provided with two threads opposite threads, and one clamping plate is threadedly connected on each thread.
[0009] Preferably, the upper surface of the experiment table is provided with an experiment groove, the inside of the experiment groove is fixedly connected with a first rubber pad, the upper surface of the first rubber pad is provided with a first anti-skid groove, the experimental model is placed in the experiment groove, and then the bottom plate is clamped and fixed by the two clamping plates.
[0010] Preferably, the surface of the bottom plate is provided with a fixing hole, the front and rear sides of the installation frame are fixedly connected with handles, the fixing hole is provided with four, and is provided at the corner positions of the bottom plate.
[0011] Preferably, the anti-skid mechanism comprises an inlay groove, the inside of the inlay groove is fixedly connected with a second rubber pad, the lower surface of the second rubber pad is provided with a second anti-skid groove, the second rubber pad slightly protrudes on the lower side of the bottom plate, and the second anti-skid groove is provided with a plurality of.
[0012] Compared with the prior art, the utility model has the beneficial effects as follows:
[0013] 1. The utility model discloses a two-stage vibration mechanism is provided, and the piston rod of air cylinder is telescopic, drives the experimental table to vibrate fast left and right, and the spring fixedly connected in the installation groove in the inside installation frame is combined, makes the experimental table produce high -strength, high -frequency vibration under the strong driving of air cylinder and the elastic buffering effect of spring, so that the two-stage vibration mode of small amplitude displacement and then high -strength vibration is complete, and the process of actual earthquake from the initial motion to the main shock is reproduced, and the model is fully experienced different stage earthquake force, and the anti -seismic nature is more comprehensive detection. BRIEF DESCRIPTION OF DRAWINGS
[0014] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings,
[0015] Figure 1 It is the structure schematic diagram of the utility model's front view whole;
[0016] Figure 2 It is the structure schematic diagram of the utility model's top view whole;
[0017] Figure 3 It is the structure schematic diagram of the utility model's side view section;
[0018] Figure 4 It is the structure schematic diagram of the utility model's lower view section.
[0019] In the drawing: 1, bottom plate, 2, installation frame, 3, installation groove, 4, spring, 5, experimental table, 6, mounting plate, 7, electric push rod, 8, moving plate, 9, air cylinder, 10, connecting plate, 11, motor, 12, two-way threaded rod, 13, clamping plate, 14, limit slot, 15, experimental tank, 16, first rubber pad, 17, first anti -slip groove, 18, fixed hole, 19, handle, 20, inlay groove, 21, second rubber pad, 22, second anti -slip groove. DETAILED DESCRIPTION
[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.
[0021] Please refer to Figures 1-4, civil engineering structure design with anti-seismic test device, including bottom plate 1, two section vibration mechanism, clamping mechanism and anti-skid mechanism, two section vibration mechanism includes installation frame 2, installation frame 2 Inside is provided with installation groove 3, installation groove 3 Inside is fixedly connected with spring 4, the upper end of spring 4 is fixedly connected with experiment table 5, the upper side of bottom plate 1 is fixedly connected with mounting plate 6, the side of mounting plate 6 is fixedly installed with electric push rod 7, one end of electric push rod 7 is fixedly connected with moving plate 8, the side of moving plate 8 is fixedly installed with air cylinder 9, the output end of air cylinder 9 is fixedly connected with connecting plate 10, connecting plate 10 is fixedly connected with experiment table 5 by screw, installation frame 2 is fixedly connected on the upper side of bottom plate 1, mounting plate 6 is fixedly connected on the upper side of bottom plate 1, first by the electric push rod 7 fixedly installed on the side of mounting plate 6 start, one end of electric push rod 7 promotes the moving plate 8 connected, moving plate 8 drives the two air cylinders 9 fixedly installed on its side to move together, since the output end of air cylinder 9 is fixedly connected with experiment table 5 by connecting plate 10 with screw, at this time, experiment table 5 will generate an initial, relatively small amplitude displacement with the movement of moving plate 8, simulate the influence of the initial stage of earthquake on the model, then, air cylinder 9 starts, the piston rod of air cylinder 9 telescopes, drives experiment table 5 to vibrate quickly left and right, in combination with spring 4 fixedly connected in the installation groove 3 of installation frame 2, the upper end of spring 4 is connected with experiment table 5, so that experiment table 5 generates high-strength, high-frequency vibration under the strong push of air cylinder 9 and the elastic buffering effect of spring 4, accurately simulates the violent vibration of the main shock stage of earthquake, so that the two-stage vibration mode of small amplitude displacement and high strength vibration is realized, the process from the initial motion to the main shock of actual earthquake is completely reproduced, the model fully experiences different stages of earthquake force, and the anti-seismic performance is more comprehensively detected.
[0022] In one aspect of the embodiment, first, the civil engineering structure that needs to be subjected to anti-seismic test is placed on the experiment table 5, the motor 11 is started, and the two-way threaded rod 12 fixedly connected at the output end of the motor 11 starts to rotate, since the two-way threaded rod 12 is externally provided with two threads with opposite threads, and each thread is threadedly connected with a clamping plate 13, and the clamping plate 13 is slidably connected with the limiting groove 14 provided in the experiment table 5, this makes the two clamping plates 13 move towards each other under the limitation of the limiting groove 14 when the two-way threaded rod 12 rotates, so as to tightly clamp the model, ensuring that the model does not displace during the subsequent vibration test, and ensuring the accuracy of the test data.
[0023] In one aspect of the embodiment, the handles 19 fixedly connected on the front and back sides of the installation frame 2 facilitate the operator to carry and move the device, and play a role in the device adjustment link before and after the test, the model is placed in the experiment groove 15 of the experiment table 5, the first rubber pad 16 fixedly installed inside the experiment groove 15 and the first anti-skid groove 17 provided on the upper surface thereof can increase the friction between the model and the experiment table 5, and play a role in preliminary fixation.
[0024] In one aspect of the embodiment, the entire test device is placed on the work plane, the bottom plate 1 is provided with four fixing holes 18 on the surface, and the bottom plate 1 can be further fixed on the ground or test table through connecting members such as bolts, so as to prevent the device from sliding as a whole during the vibration test. Meanwhile, the second rubber pad 21 fixedly connected in the inlaid groove 20 on the lower side of the bottom plate 1 and the second anti-skid groove 22 provided on the lower surface thereof can also provide a certain friction force when the device is not additionally fixed, so as to enhance the stability of the device and ensure that the test process is not disturbed by the outside world and is carried out smoothly.
[0025] The working principle of the utility model is: the civil engineering structure design is used in the anti-seismic test device, the model is placed in the experimental tank 15 of the experiment table 5, the first rubber pad 16 fixedly connected in the experimental tank 15 and the first anti-skid groove 17 provided on the upper surface thereof can increase the friction force between the model and the experiment table 5, and play a preliminary fixing role, then the motor 11 is started, the bidirectional screw rod 12 fixedly connected at the output end of the motor 11 starts to rotate, since the bidirectional screw rod 12 is provided with two threads with opposite threads outside, and one clamping plate 13 is threadedly connected on each thread, and the clamping plate 13 is slidably connected with the limiting groove 14 provided in the experiment table 5, so that when the bidirectional screw rod 12 rotates, the two clamping plates 13 move towards each other under the limitation of the limiting groove 14, so as to tightly clamp the model, then the air cylinder 9 is started, the piston rod of the air cylinder 9 is retracted, and the experiment table 5 is rapidly vibrated left and right, in combination with the spring 4 fixedly connected in the installation groove 3 in the installation frame 2, and the upper end of the spring 4 is connected with the experiment table 5, so that the experiment table 5 is subjected to the strong pushing of the air cylinder 9 and the elastic buffering of the spring 4, and generates high-strength and high-frequency vibration, accurately simulates the violent vibration condition of the main shock stage of the earthquake, so that the two-stage vibration mode of small amplitude displacement and high-strength vibration is realized, the process of the actual earthquake from the initial motion to the main shock is completely reproduced, the model fully experiences the earthquake force in different stages, and the anti-seismic performance is more comprehensively detected, and all the electrical equipment in the scheme is powered by an external power supply.
[0026] Finally, it should be noted that: the above only for preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.
Claims
1. The anti-seismic test device for civil engineering structure design, comprising a base plate (1), a two-stage vibration mechanism, a clamping mechanism and an anti-skid mechanism, characterized in that: The two-section vibration mechanism includes a mounting frame (2), the inside of the mounting frame (2) is provided with a mounting groove (3), the inside of the mounting groove (3) is fixedly connected with a spring (4), the upper end of the spring (4) is fixedly connected with an experiment table (5), the upper side of the bottom plate (1) is fixedly connected with a mounting plate (6), one side of the mounting plate (6) is fixedly installed with an electric push rod (7), one end of the electric push rod (7) is fixedly connected with a moving plate (8), one side of the moving plate (8) is fixedly installed with an air cylinder (9), the output end of the air cylinder (9) is fixedly connected with a connecting plate (10), the connecting plate (10) is fixedly connected with the experiment table (5) through screws.
2. The apparatus according to claim 1, wherein: The mounting frame (2) is fixedly connected to the upper side of the bottom plate (1), and the mounting plate (6) is fixedly connected to one side of the upper side of the bottom plate (1).
3. The apparatus according to claim 1, wherein: The clamping mechanism includes a motor (11), the output end of the motor (11) is fixedly connected with a bidirectional threaded rod (12), the outside of the bidirectional threaded rod (12) is provided with a clamping plate (13), and the inside of the experiment table (5) is provided with a limiting groove (14).
4. The apparatus according to claim 3, wherein: The motor (11) is fixedly installed on one side of the experiment table (5), the bidirectional threaded rod (12) is threadedly connected with the clamping plate (13), and the clamping plate (13) is slidably connected with the limiting groove (14).
5. The apparatus for seismic testing of civil engineering design according to claim 1, characterized in that: The upper surface of the experiment table (5) is provided with an experiment groove (15), the inside of the experiment groove (15) is fixedly connected with a first rubber pad (16), and the upper surface of the first rubber pad (16) is provided with a first anti-skid groove (17).
6. The apparatus for seismic testing of civil engineering design according to claim 1, characterized in that: The surface of the bottom plate (1) is provided with a fixed hole (18), and the front and rear sides of the mounting frame (2) are fixedly connected with handles (19).
7. The apparatus for seismic testing of civil engineering design according to claim 1, characterized in that: The anti-skid mechanism includes an inlay groove (20), the inside of the inlay groove (20) is fixedly connected with a second rubber pad (21), and the lower surface of the second rubber pad (21) is provided with a second anti-skid groove (22).