A seismic acceleration response spectrum display model and operation method

Abstract

A seismic acceleration response spectrum display model and operation method, wherein a simple hand-push vibration table (1) applies simulated ground vibrations to a table top; a spring steel sheet-mass ball assembly (2) and a table-top acceleration sensor (3) are fixed on the simple hand-push vibration table The table top of the platform (1); the signal input ends of the acceleration signal acquisition instrument (4) are respectively electrically connected to each acceleration sensor and the table top acceleration sensor (3), and the signal output ends are electrically connected to the seismic response spectrum display component (5). The invention generates tabletop vibration by manual pushing and pulling, records the tabletop acceleration by an acceleration sensor, and simultaneously collects the acceleration peak values ​​of the acceleration sensors in the spring steel sheet-mass ball system of different heights, and displays them in the display software in the cycle-acceleration peak value coordinate system. A histogram is drawn for the periodic position, and the measured response spectrum curve is obtained, which visually shows the origin, nature and influencing factors of the seismic acceleration response spectrum.

Description

technical field [0001] The present invention relates to an earthquake display model, in particular to an earthquake acceleration response spectrum display model and an operation method. Background technique [0002] With the development of economy and the accumulation of social wealth, destructive earthquakes may bring more and more losses to the society. The seismic performance of civil engineering has been paid more and more attention by the civil engineering industry and the whole society. For college students and practitioners majoring in civil engineering, it is irreplaceable to master systematic and comprehensive civil engineering seismic knowledge, understand and master the correct structural seismic concept, carry out reasonable and safe engineering seismic design, and correct and standardized seismic construction. play a key role in. At the same time, for the general public, understanding the earthquake response of civil engineering and the basic idea of ​​earthqua...

AI Technical Summary

Problems solved by technology

[0005] Insufficient 1. There is a matching problem between the machining accuracy and the plastic shell of the counterweight processed by steel

If the counterweight is too large, it is difficult to put it into the plastic shell; if it is too small, it will loosen when the model vibrates due to the gap, which will affect the display effect

[0006] Less than 2, the quality of the counterweight is fixed and cannot be adjusted

[0007] Insufficient 3. Steel processing counterweight also has the problems of relatively high cost and long processing cycle

[0008] Insufficient 4. The MEMS sensor used in the model is a bare tiny circuit board placed in a mass ball

However, due to the lack of protection of the circuit board itself, it is prone to short circuit or wire damage when used alone. Therefore, placing the sensor in the spherical shell alone limits its utilization and the flexibility of the entire display model.

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