水利水电科技进展2016，Vol.36Issue(5)：65-68,4.DOI:10.3880/j.issn.1006-7647.2016.05.012
基于OpenSees的二维黏弹性边界单元开发及应用
Development of two-dimensional viscoelastic boundary element based on OpenSees and its application
摘要
Abstract
A two-dimensional (2D) viscoelastic boundary element, VS2D2Bar, was developed based on the open source finite element package OpenSees. The applicability of the 2D viscoelastic boundary element was verified with a numerical example, and it was applied to the seismic response analysis of a gravity dam. Numerical results demonstrate that the peak dynamic response of the dam body according to the viscoelastic boundary element model greatly decreases in contrast to that obtained from the massless foundation model with fixed boundary conditions. As a result, the radiation damping effect of the infinite foundation should be considered in seismic response analysis of gravity dams. The results also show that OpenSees is applicable to the seismic response analysis of gravity dams. With a high efficiency in programming and debugging, OpenSees can be easily extended to the static and dynamic analysis of complex hydraulic structures.关键词
黏弹性边界/地震响应/重力坝/OpenSeesKey words
viscoelastic boundary/seismic response/gravity dam/OpenSees分类
建筑与水利引用本文复制引用
高毅超,刘阳,梅真..基于OpenSees的二维黏弹性边界单元开发及应用[J].水利水电科技进展,2016,36(5):65-68,4.基金项目
国家自然科学基金(51409107,51378228) （51409107,51378228）
中国博士后科学基金(2014M551832) （2014M551832）
