摘要
中国在建和拟建的大型水电站多处于强地震活动区域,水电站厂房的抗震性能问题十分突出。长期以来,水电站厂房结构的抗震计算大多是基于线弹性材料,未考虑水工钢筋混凝土在高地震荷载作用下所显现的强非线性特征。文章以实际工程项目——怒江赛格水电站厂房为研究对象,运用静力弹塑性方法分析了混凝土进入塑性阶段后厂房结构的抗震性能。
A couple of large-sized hydropower stations built and under construction are located in strong earthquake occurrence regions. Therefore, the aseismic performance of those hydropower stations is significant. In the past, the aseismic computation of the power- house structure is based on the linearly elastic materials. The strong non-linear feature of the hydraulic reinforced concrete appearing under action of the high earthquake load is not considered. With the engineering practice of the powerhouse of Saige Hydropower Project on the Nujiang River, in this paper, the aseismie performance of the powerhouse structure after its concrete comes into plastic stage is analyzed by application of the push-over analysis method.
出处
《西北水电》
2014年第3期79-83,共5页
Northwest Hydropower
