Adjustment method for matching of near-fault artificial seismic waves and standard reaction spectrum

Abstract

The invention provides an adjustment method for matching of near-fault artificial seismic waves and a standard reaction spectrum. A calculation reaction spectrum is unfolded and decomposed into multiple layers, an optimized algorithm is used to carry out adjustment and wavelet reconstruction on coefficients which need adjusting, the standard reaction spectrum is matched rapidly in high efficiency,the calculation reaction spectrum matches the standard reaction spectrum more, and the Volterra level is zoomed in / out to improve the matching precision and calculation efficiency. Anti-seismic analysis can be carried out on an engineering structure, analysis on the anti-seismic design and structural power is more accurate and effective, a bridge design capability is optimized, a bridge safety coefficient is improved, the service life is prolonged, damage after seismic is reduced, maintenance cost after seismic is reduced, the matching difficulty is reduced greatly, guidance is provided for anti-seismic design of engineering building structures and the bridge structures, design of the engineering structure especially the bridge structure is optimized, and the design efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of artificial seismic wave synthesis, in particular to an adjustment method for matching near-fault artificial seismic waves with standard response spectra. Background technique [0002] Near-fault ground motion is the most complex type of ground motion. It has a significant vertical acceleration component, and the horizontal component has a strong directional effect of fault rupture. The peak values ​​of acceleration, velocity, and displacement differ greatly. The ratio of the horizontal peak acceleration is far greater than the ratio of the far-field vibration, and its velocity time history is in the form of a strong pulse with a large value, a long period, and a short duration, which will cause great damage to the engineering structure. In seismic analysis, it is necessary to consider near-fault effects. [0003] In the prior art, due to the limited number of actual near-fault seismic records, especially...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a near-fault artificial seismic wave with poor matching degree, large error, complicated matching process and low efficiency, etc. The adjustment method of seismic wave and standard response spectrum matching, in order to realize above-mentioned invention object, the present invention provides following technical scheme:

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