石砭峪堆石坝沥青混凝土斜墙地震动力反应分析

Seismic Response of Asphalt Concrete Sloping Core in Shibianyu Rockfill Dam

运用三维有限元分析方法,采用地震分析时程法对西安石砭峪水库大坝沥青混凝土斜墙进行地震动力反应分析,得到了大坝沥青混凝土斜墙三方向最大动拉应力,并结合静力反应的成果对设计地震烈度条件下大坝沥青混凝土斜墙动力受拉破坏区域进行了预测,给出了预测的动力破坏区域,得出的结论对其加固过程中相关抗震设防有一定的借鉴意义,可以作为其抗震设防的相关设计参考基础资料。

By using the three-dimensinal finite element method and the seismic analysis,the seismic response of the asphalt concrete sloping core in Shibianyu Dam of Xi＇an City is analyzed and the maximum tension stress of the core in the dam is obtained.And combining with the static response,the dynamic tension failure zone of the core in the dam under the condition of the seismic design intensity is predicted.The conclusions obtained may be the reference data for the earthquak-resistant design.