《Earthquake Engineering and Structural Dynamics》杂志刊登“利用强度估计和损伤指数对混凝土重力坝进行抗震评估”

作者：Mohammad Alembagheri, Mohsen Ghaemian

刊物：《Earthquake Engineering and Structural Dynamics》，2013年，42卷第1期，123—144页

关键词：混凝土重力坝；结构强度；损伤指数；非线性静力弹塑性；增量动力分析法；抗震性能

摘要：本文介绍了一种确定混凝土重力坝损伤状态的新概念方法。并基于无滑动面和刚性基础的假设，使用该方法并结合两种著名的非线性静力弹塑性法和增量动力分析法对松平混凝土重力坝进行结构强度的分析。利用这两种方法，可以确定大坝的性能和许多极限状态，并且基于抗震需求和大坝性能的对比还得到了三个损伤指数。结果表明：使用非线性静力弹塑性法和增量动力分析法能够得到混凝土重力坝的抗震性能评估指数和损伤评估指数。

Seismic assessment of concrete gravity dams using capacity estimation and damage indexes

Authors: Mohammad Alembagheri, Mohsen Ghaemian

Journal: Earthquake Engineering and Structural Dynamics, Volume 42, Issue 1, pages123–144, January 2013

Key words: concrete gravity dams; structural capacity; damage index; nonlinear static pushover; incremental dynamic analysis; seismic performance

Abstract: A new concept to determine state of the damage in concrete gravity dams is introduced. The Pine Flat concrete gravity dam has been selected for the purpose of the analysis and its structural capacity, assuming no sliding plane and rigid foundation, has been estimated using the two well-known methods: nonlinear static pushover (SPO) and incremental dynamic analysis (IDA). With the use of these two methods, performance and various limit states of the dam have been determined, and three damage indexes have been proposed on the basis of the comparison of seismic demands and the dam's capacity. It is concluded that the SPO and IDA can be effectively used to develop indexes for seismic performance evaluation and damage assessment of concrete gravity dams. 

原文链接：http://onlinelibrary.wiley.com/doi/10.1002/eqe.2196/abstract