【摘要】：不同類型匹配目標(biāo)譜的模擬地震動記錄被廣泛應(yīng)用于結(jié)構(gòu)時程分析。以人工合成、小波變換頻域調(diào)整以及時域調(diào)整生成模擬地震動記錄方法作為研究對象,采用傅里葉變換和希爾伯特-黃變換方法對比分析了不同類型的模擬地震動記錄頻域和時頻特性;選擇不同恢復(fù)力模型的彈塑性單自由度結(jié)構(gòu)進(jìn)行時程分析,對比分析了采用不同類型記錄計(jì)算的結(jié)構(gòu)位移和能量反應(yīng)。時域調(diào)整記錄的地震動特征與實(shí)際地震動記錄接近,而人工合成記錄無法反映實(shí)際地震動輸入能量特征,不適用于進(jìn)行結(jié)構(gòu)能量反應(yīng)評價。
[Abstract]:Simulated ground motion records of different matching target spectra are widely used in structural time history analysis. Artificial synthesis, frequency domain adjustment of wavelet transform and time domain adjustment are used to generate simulated ground motion records. Fourier transform and Hilbert-Huang transform are used to analyze the frequency domain and time-frequency characteristics of different kinds of simulated ground motion records. Elastoplastic single-degree-of-freedom structures with different restoring force models were selected for time-history analysis, and the displacement and energy responses of structures calculated by different types of records were compared and analyzed. The characteristics of ground motion recorded in time domain adjustment are close to those of actual ground motion records, but synthetic records can not reflect the input energy characteristics of actual ground motions, so they are not suitable for structural energy response evaluation.
【作者單位】： 合肥工業(yè)大學(xué)建筑與藝術(shù)學(xué)院;合肥工業(yè)大學(xué)土木與水利工程學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(51378167)
【分類號】：TU311.3

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1 蔡宏紅;小波分析方法模擬地震動的研究[D];西安建筑科技大學(xué);2008年

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本文編號：2368195