近場長周期地震動對減隔震連續(xù)梁橋的地震響應(yīng)的影響研究
[Abstract]:Based on the nonlinear time-history analysis method, the seismic responses of continuous beam bridges with seismic isolation under the action of conventional ground motion and near-field long-period ground motion are compared and analyzed. The results show that the seismic response of bridges is greatly affected by the characteristics of earthquake ground motion. The closer the dominant period of ground motion to the natural period of the bridge is, the greater the seismic response of the bridge is, and the stronger the impulse of ground motion is, the greater the seismic response of bridge is. When the dominant period and the natural vibration period of the bridge are close to the TCU052,TCU102 and the strong impulse characteristic of the TCU068 ground motion, the seismic response of the bridge increases obviously, and the shear force and bending moment of the bridge are 1.5 times as much as that of the conventional ground motion. The deformation of the support is 8 times higher than that of the conventional ground motion, and the near-field long-period ground motion may cause the seismic response of the seismic isolation bridge to be more unfavorable.
【作者單位】: 南京工業(yè)大學(xué)土木工程學(xué)院;
【分類號】:U442.55
【參考文獻】
相關(guān)期刊論文 前10條
1 廖文義,羅俊雄,萬絢;隔震橋梁承受近斷層地震之反應(yīng)分析[J];地震工程與工程振動;2001年S1期
2 楊迪雄,李剛,程耿東;近斷層脈沖型地震動作用下隔震結(jié)構(gòu)地震反應(yīng)分析[J];地震工程與工程振動;2005年02期
3 劉啟方;袁一凡;金星;丁海平;;近斷層地震動的基本特征[J];地震工程與工程振動;2006年01期
4 江海波,廖蜀樵;鉛芯橡膠支座隔震效果分析[J];城市軌道交通研究;2005年03期
5 徐秀麗;段好安;郎冬梅;李雪紅;劉偉慶;;預(yù)應(yīng)力混凝土大跨連續(xù)梁橋隔震設(shè)計[J];公路交通科技;2009年08期
6 王統(tǒng)寧;劉健新;于泳波;;近斷層地震動作用下減隔震橋梁空間動力分析[J];交通運輸工程學(xué)報;2009年05期
7 徐秀麗;李雪紅;劉偉慶;王曙光;王滋軍;;大型減隔震橋梁結(jié)構(gòu)分析方法[J];南京工業(yè)大學(xué)學(xué)報(自然科學(xué)版);2009年01期
8 江輝,朱f^;近斷層強震速度脈沖效應(yīng)及連續(xù)梁橋減隔震特性分析[J];中國安全科學(xué)學(xué)報;2003年12期
9 金文成;黃古劍;;斜拉桁架體系橋梁抗震特性分析[J];中南公路工程;2007年01期
10 張清平;張德海;;大跨度連續(xù)剛構(gòu)橋抗震響應(yīng)特性評估研究[J];公路工程;2011年05期
【共引文獻】
相關(guān)期刊論文 前10條
1 楊s鷖,
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