摘要
首先利用Bresler建议的屈服面函数形式作为地震动最不利输入方向的标准,然后由反应谱法确定截面内力(弯矩),并按SRSS法组合,再引入莫尔圆来确定地震动最不利输入方向和截面内力最大值。这对于斜弯桥及立交工程抗震分析和设计具有重要意义。
Standard for the determination of the least favourable direction of ground motion for bridge is established using the yielding surface function proposed by Bresler. The sectional force (moment) is obtained using the SRSS response analysis method. Then the least favourable direction of ground motion and maximum sectional force are determinted through Molar circle rule. It is important for seismic analysis and design of pier of skew curve bridges and interchange bridge.
引文
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