高拱坝伸缩横缝间布设阻尼器对坝体地震反应影响的研究

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英文篇名：Study on effect of damper between contraction joints on seismic response of the high arch dam 中文刊名：世界地震工程 英文刊名：World Information On Earthquake Engineering 作者：郭永刚 ; 涂劲 ; 陈厚群 英文作者：GUO Yong-gang ; TU Jin ; CHEN Hou-qun (China Institute of Water Resources and Hydropower Research ; Beijing 100044 China) 中文关键词：高拱坝 ; 伸缩横缝 ; 阻尼器 ; 地震反应 英文关键词：high arch dam ; contraction joint ; damper ; seismic response 出版日期：2003-09-20 机构：中国水利水电科学研究院,中国水利水电科学研究院,中国水利水电科学研究院 北京100044 ,北京100044 ,北京100044 年：2003 期：03 出版单位：世界地震工程

摘要

对设置伸缩横缝的小湾高拱坝结构,应用子结构理论,分别就正常高水位与常遇低水位两种水位工况,考虑坝体伸缩横缝在地震交变荷载作用下反复开合引起的缝面间滑移、接触等效应的影响,坝体—库水的相互作用而产生的动水压力的影响,对坝体的抗震性能进行了地震反应分析。对伸缩缝间设置阻尼器这新的设计思想进行了可行性的研究,论证推导了阻尼器的计算模型,探讨了阻尼器对坝体抗震性能的影响。
The paper analyzes the seismic resistance of Xiao Wan arch dam in which the contraction joints are considered by substructure theory. The effect of different water level, contact and sliding effect of joints and the dam-water interaction are discussed. The feasibility of set up damper between the contraction joints as an engineering anti-seismic measure is studied. A numerical model that simulates the dampers is set and demonstrated and the effect of the dampers on the seismic resistance of the high arch dam is researched.

引文

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