桥梁抗震的分析方法

On the analysis methods for bridges' anti-seismic function

针对我国桥梁抗震研究的重要性,对当前桥梁抗震分析方法中的确定性分析方法及概率性分析方法进行了论述,指出同一桥梁对不同地震动输入有不同地震反应,合理的地震动输入至少应是桥址区的可能地震动,强调了大力发展桥梁抗震随机分析方法的必要性。

Aiming at the importance of the anti-seismic research of bridges of our country, the paper illustrates the certainty analysis of the current bridge anti-seismic analysis methods and the probabilistic analysis methods, points out the same bridge has different earthquake response to the different ground motion inputs, indicates that the rational ground motion input at least should be the possible ground motion of the bridge area, and emphasizes on the necessity of the development of the bridge＇s anti-seismic stochastic analysis.