Earthquake acceleration response spectrum display model and operation method

Abstract

The invention discloses an earthquake acceleration response spectrum display model and an operation method. A simple hand-push vibration table (1) applies simulated seismic oscillation to a table top; a spring steel sheet-mass ball assembly (2) and a tabletop acceleration sensor (3) are fixed on the tabletop of the simple hand-push vibration table (1); and the signal input end of an acceleration signal acquisition instrument (4) is electrically connected to each acceleration sensor and the tabletop acceleration sensor (3), and the signal output end of the acceleration signal acquisition instrument (4) is electrically connected to an earthquake response spectrum display assembly (5). According to the method, table top vibration is generated through manual push and pull, the acceleration of the table top is recorded by an acceleration sensor, meanwhile, acceleration peak values of the acceleration sensors in spring steel sheet-mass ball systems with different heights are collected, and in display software, a histogram is drawn at the corresponding periodic position in a period-acceleration peak value coordinate system; therefore, the actually measured response spectrum curve is obtained, and the origin, the property and the influence factors of the seismic acceleration response spectrum are visually displayed.

Description

technical field [0001] The 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 the economy and the accumulation of social wealth, destructive earthquakes may cause more and more losses to the society. The seismic performance of civil engineering has been increasingly valued by the civil engineering industry and the whole society. For college students and practitioners majoring in civil engineering, it is irreplaceable to master the systematic and comprehensive seismic knowledge of civil engineering, understand and master the correct concept of seismic resistance of structures, carry out reasonable and safe engineering seismic design, and construct correct and standardized seismic measures. Key role. At the same time, for the general public, understanding the earthquake response of civil engineering and the basic ideas of ea...

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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