Study on cracking behavior of high arch dam subjected to strong earthquakes

被引：0

作者：

Long, Yuchuan ^{[1
,2
]}

机构：

[1] School of Civil Engineering, Chongqing University, Chongqing 400045, China

[2] Key Laboratory of New Technology for Constructions in Mountain Area (Chongqing University), Ministry of Education, Chongqing 400030, China

来源：

Shuili Fadian Xuebao/Journal of Hydroelectric Engineering | 2012年 / 31卷 / 05期

关键词：

Earthquakes - Concretes - Cracks - Dynamic response - Dynamic loads - Thermal load - Arches - Arch dams;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A numerical study is presented for cracking behaviors of high arch dam under strong earthquakes, using a plastic-damage model and a contact boundary method to model concrete cracking and opening/closing behaviors of contraction joint, respectively, and focusing on the influence of thermal loading on dynamic responses of the dam. Computations of the responses show that on the downstream face, concrete cracking occurs in the upper middle region of dam body, while on the upstream face, it concentrates near the dam-foundation interface. These cracks are large in magnitude and extend to the deep interior of the body, hence causing a potential threatening to instability of dam structure. The results indicate a significant influence of thermal loading on the dynamic responses of joint opening, cracks and crack opening displacement, etc. © right.

引用

页码：178 / 183