Earthquake test device of civil engineering frame structure

Abstract

The utility model relates to the technical field of earthquake test devices, and discloses an earthquake test device of a civil engineering frame structure, which comprises an earthquake platform, a building frame body is arranged on the upper surface of the earthquake platform, the building frame body comprises a plurality of groups of vertical columns and cross beams, and the vertical columns are vertically arranged on the upper surface of the earthquake platform. The two ends of the cross beam are connected with the upper ends of the stand columns by arranging fixing bolts, a plurality of sets of measuring mechanisms are arranged on the upper surface of the seismic table, the measuring mechanisms are used for measuring the deformation degree of all parts of the cross beam, and each measuring mechanism comprises a fixing base fixedly installed on the upper surface of the seismic table. During testing, seismic waves are generated by a seismic station and applied to a building frame, and when the seismic intensity is low and the building frame does not change with naked eyes, the building frame can be accurately measured by arranging the measuring mechanism, so that the building frame can be accurately measured, and the building frame can be accurately measured. The deformation degree of the cross beam can be detected.

Description

Technical Field

[0001] This application relates to the field of earthquake testing equipment technology, and in particular to an earthquake testing equipment for a civil engineering frame structure. Background Technology

[0002] Earthquake tests can also provide a scientific basis for the seismic design of buildings, reduce earthquake losses, and protect people's lives and property. These studies are of great significance to earthquake engineering, geology, and disaster prevention and mitigation. Currently, when testing the seismic resistance coefficient of civil engineering frames, changes in the civil engineering frame cannot be directly observed when the earthquake intensity is low, thus making it impossible to obtain test data. Therefore, a seismic testing device for civil engineering frame structures is proposed. Utility Model Content

[0003] To address the problem that when testing the seismic resistance coefficient of civil engineering frames, changes in the civil engineering frame cannot be directly observed when the earthquake intensity is low, thus making it impossible to obtain test data, this application provides a seismic testing device for civil engineering frame structures.

[0004] The seismic testing device for a civil engineering frame structure provided in this application adopts the following technical solution:

[0005] An earthquake testing device for a civil engineering frame structure includes a seismic table. A building frame is provided on the upper surface of the seismic table. The building frame includes multiple sets of columns and beams. The columns are erected on the upper surface of the seismic table. The two ends of the beams are connected to the upper ends of the columns by fixing bolts. Multiple measuring mechanisms are provided on the upper surface of the seismic table. The measuring mechanisms are used to measure the degree of deformation of various parts of the beams.

[0006] Preferably, the measuring mechanism includes a fixed base fixedly installed on the upper surface of the seismic table. Multiple sets of sleeves are fixedly connected to the upper surface of the fixed base. A measuring rod is slidably installed inside the sleeve. A spring is fixedly connected to the bottom of each sleeve. The upper end of the spring is fixedly connected to the corresponding measuring rod. The upper end of the measuring rod is located outside the sleeve and contacts the crossbeam.

[0007] Preferably, a slider is fixedly connected to the bottom of the measuring rod, a vertically arranged groove is provided on the outer surface of the sleeve, the slider is slidably installed inside the groove, and one end of the slider is located outside the groove and fixedly connected to a triangular marker, and a scale line is provided on the outer surface of the sleeve along the groove.

[0008] Preferably, the values ​​of the scale lines increase sequentially from top to bottom.

[0009] Preferably, the measuring rod passes through the top surface of the sleeve and is clearance-fitted thereto.

[0010] In summary, this application includes the following beneficial technical effects:

[0011] During testing, this invention utilizes a seismic station to generate seismic waves, which are then applied to the building frame. When the seismic intensity is low and the building frame shows no visible change, a measuring mechanism can be set up to detect the degree of deformation of the beams. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the application embodiment;

[0013] Figure 2 This is a partial cross-sectional view of an embodiment of the application;

[0014] Figure 3 This is an example of the application. Figure 1 Enlarged view of point A in the middle.

[0015] Explanation of reference numerals in the attached diagram: 1. Seismic station; 2. Column; 3. Horizontal beam; 4. Fixing bolt; 5. Fixing seat; 6. Measuring rod; 7. Sleeve; 8. Spring; 9. Sliding block; 10. Slide groove; 11. Scale line; 12. Trigonometric indicator. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0017] This application discloses an earthquake testing device for a civil engineering frame structure, including a seismic table 1. A building frame is provided on the upper surface of the seismic table 1. The building frame includes multiple sets of columns 2 and beams 3. The columns 2 are erected on the upper surface of the seismic table 1. The two ends of the beams 3 are connected to the upper ends of the columns 2 by fixing bolts 4. Multiple sets of measuring mechanisms are provided on the upper surface of the seismic table 1. The measuring mechanisms are used to measure the degree of deformation of various parts of the beams 3.

[0018] Furthermore, the measuring mechanism includes a fixed base 5 fixedly installed on the upper surface of the seismic station 1. Multiple sets of sleeves 7 are fixedly connected to the upper surface of the fixed base 5. A measuring rod 6 is slidably installed inside the sleeve 7. A spring 8 is fixedly connected to the bottom of each sleeve 7. The upper end of the spring 8 is fixedly connected to the corresponding measuring rod 6. The upper end of the measuring rod 6 is located outside the sleeve 7 and contacts the crossbeam 3. The measuring rod 6 penetrates the top surface of the sleeve 7 and is clearance-fitted with it.

[0019] Furthermore, a slider 9 is fixedly connected to the bottom of the measuring rod 6, and a vertically arranged slide groove 10 is opened on the outer surface of the sleeve 7. The slider 9 is slidably installed inside the slide groove 10, and one end of the slider 9 is located outside the slide groove 10 and is fixedly connected to a triangular marker 12. A scale line 11 is set along the slide groove 10 on the outer surface of the sleeve 7, and the value of the scale line 11 increases sequentially from top to bottom.

[0020] In this embodiment, the structure of the seismic station 1 includes a shaking table, a drive system, a control system, and a loading system. The principle is to generate seismic waves using the seismic station 1, apply them to the test model, observe its response, and thus study and improve the seismic performance of the structure; details will not be elaborated further here.

[0021] During testing, seismic waves are generated using seismic station 1 and applied to the building frame. When the seismic intensity is low and the building frame shows no visible change, the deformation degree of beam 3 can be detected by setting up a measuring mechanism. Specifically, when beam 3 is compressed and deformed, beam 3 will push measuring rod 6 to move, and the slider 9 at the bottom of measuring rod 6 and the triangular marker 12 will move accordingly. The tester can determine whether beam 3 is deformed by observing the position of triangular marker 12, and the degree of deformation of beam 3 can be determined by the position of triangular marker 12 based on the scale line 11.

[0022] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0023] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0024] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0025] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A seismic testing device for a civil engineering frame structure, comprising a seismic station (1), characterized in that, The seismic station (1) has a building frame on its upper surface. The building frame includes multiple sets of columns (2) and beams (3). The columns (2) are erected on the upper surface of the seismic station (1). The two ends of the beams (3) are connected to the upper ends of the columns (2) by fixing bolts (4). Multiple sets of measuring mechanisms are provided on the upper surface of the seismic station (1). The measuring mechanisms are used to measure the degree of deformation of each part of the beams (3).

2. The seismic testing device for a civil engineering frame structure according to claim 1, characterized in that, Each measuring mechanism includes a fixed seat (5) fixedly installed on the upper surface of the seismic station (1). Multiple sets of sleeves (7) are fixedly connected to the upper surface of the fixed seat (5). A measuring rod (6) is slidably installed inside the sleeve (7). A spring (8) is fixedly connected to the bottom of each sleeve (7). The upper end of the spring (8) is fixedly connected to the corresponding measuring rod (6). The upper end of the measuring rod (6) is located outside the sleeve (7) and contacts the crossbeam (3).

3. The seismic testing device for a civil engineering frame structure according to claim 2, characterized in that, The measuring rod (6) is fixedly connected to a slider (9) at the bottom. The outer surface of the sleeve (7) is provided with a vertically arranged groove (10). The slider (9) is slidably installed inside the groove (10). One end of the slider (9) is located outside the groove (10) and is fixedly connected to a triangular marker (12). The outer surface of the sleeve (7) is provided with scale lines (11) along the groove (10).

4. The seismic testing device for a civil engineering frame structure according to claim 3, characterized in that, The values ​​of the scale lines (11) increase sequentially from top to bottom.

5. The seismic testing device for a civil engineering frame structure according to claim 4, characterized in that, The measuring rod (6) passes through the top surface of the sleeve (7) and is fitted with it with a clearance.

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