| 曲线桥在地震作用下的面内转动机理分析 |
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| 引用本文： | 黄明非.曲线桥在地震作用下的面内转动机理分析[J].重庆交通大学学报(自然科学版),2011(6):1265-1269. |
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| 作者姓名： | 黄明非 |
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| 作者单位： | 重庆交通大学土木建筑学院 |
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| 摘 要： | 曲线桥梁在水平地震作用下,上部结构在两个主方向上的地震反应会产生耦合现象,该现象主要为梁端的横向位移和桥面板的面内转动；通过对简化的单跨曲线桥模型进行弹性时程分析,研究曲线桥在弦线方向的地震输入下的转动机理,并比较不同曲率半径下曲线桥的地震反应；讨论主梁-桥台相互作用对桥面板转动的影响,应用非线性时程分析计算不同曲率的...
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| 关 键 词： | 曲线桥 地震反应 面内转动 地震输入角度 |
In-Plane Rotation Mechanism of Curve Bridge under Seismic Response |
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| HUANG Ming-fei.In-Plane Rotation Mechanism of Curve Bridge under Seismic Response[J].Journal of Chongqing Jiaotong University,2011(6):1265-1269. |
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| Authors: | HUANG Ming-fei |
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| Institution: | HUANG Ming-fei(School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China) |
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| Abstract: | Seismic response of superstructure would appear coupling phenomenon in curve bridge.This phenomenon mainly includes transverse displacement and in-plane rotation.The rotation mechanism of earthquake action in chord direction is researched.Based on the analysis on the simplified single-span curve bridge and linear time-history,the in-plane rotation mechanism of curve bridge is studied,and different seismic responses with different curvature ratio are compared.The effect of the girder-abutment interaction on the in-plane rotation is discussed.Nonlinear time-history method is applied to calculate the seismic response with different curvature and different input direction.Finally,the most adverse input angle of earthquake is determined. |
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| Keywords: | curve bridge seismic response in-plane rotation earthquake input angle |
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