知识与财富的链接
基于位移的抗震设计理论,介绍了能力谱法的基本原理和实施步骤。以南水北调工程为背景,应用该方法对渡槽结构的抗震性能进行了研究,并与非线性时程分析结果作对比。考虑到渡槽结构的特殊性,在计算需求谱曲线时,采用基于水工建筑物抗震设计规范的等延性弹塑性需求谱。分析表明:能力谱法可以用于隔震渡槽结构的抗震性能评估。
Based on the displacement of seismic design theory,this paper introduced the basic principle and implementation of capacity spectrum method.With the background of the south to north water diversion project,it studied the seismic performance of an aqueduct structure, and then compared with the results of nonlinear time-history analysis.Considering the particularity of aqueduct structure,when calculating the demand spectrum curve,it used constant ductility elastoplastic demand spectrum which based on the code for seismic design of hydraulic structures.Analysis show that capacity spectrum method can be used for seismic performance evaluation of isolated aqueduct.
