考慮地面運(yùn)動(dòng)不確定性的地面運(yùn)動(dòng)記錄選擇方法研究
發(fā)布時(shí)間:2019-01-27 13:29
【摘要】:分析國(guó)內(nèi)外當(dāng)前地面運(yùn)動(dòng)記錄選擇方法后,重點(diǎn)指出我國(guó)方法中值得改進(jìn)之處,提出考慮地面運(yùn)動(dòng)記錄不確定性的地面運(yùn)動(dòng)記錄選擇方法。并建立Ⅱ類場(chǎng)地地面運(yùn)動(dòng)數(shù)據(jù)庫(kù),給出不同震級(jí)和距離分組下加速度動(dòng)力放大系數(shù)譜分布規(guī)律,以此體現(xiàn)地面運(yùn)動(dòng)的不確定性。最后,以一個(gè)工程算例來展示考慮地面運(yùn)動(dòng)不確定性的地面運(yùn)動(dòng)記錄選擇方法的應(yīng)用過程和結(jié)果。算例的動(dòng)力時(shí)程分析結(jié)果表明,由此預(yù)測(cè)出的結(jié)構(gòu)模型地震反應(yīng)確實(shí)存在著一個(gè)明顯的分布范圍,克服了當(dāng)前擬合單一目標(biāo)譜的地面運(yùn)動(dòng)記錄選擇方法抹殺地面運(yùn)動(dòng)不確定性的弊端,為全面了解結(jié)構(gòu)在一定地震風(fēng)險(xiǎn)下抗震性能提供可能。
[Abstract]:After analyzing the current ground motion record selection methods at home and abroad, the paper points out that the methods in our country deserve to be improved, and puts forward a ground motion record selection method considering the uncertainty of ground motion record. The ground motion database of class 鈪,
本文編號(hào):2416306
[Abstract]:After analyzing the current ground motion record selection methods at home and abroad, the paper points out that the methods in our country deserve to be improved, and puts forward a ground motion record selection method considering the uncertainty of ground motion record. The ground motion database of class 鈪,
本文編號(hào):2416306
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