水力发电学报2011，Vol.30Issue(2)：96-99,106,5.
高拱坝横缝间布设SMA耗能棒材的减震分析与研究
SMA restrainer bars across contraction joints of high arch dams to resist earthquakes
摘要
Abstract
A nonlinear contact numerical model of high arch dams with contraction joints is established for transient simulations. Restrainer bars of shape memory alloys ( SMA ) are adopted to reduce the nonlinear seismic response of arch dams, and simulation method of their energy damping and control mechanism is discussed. Simulation results with various earthquake resistance measures show that these bars are more effective in limiting joints opening and seismic acceleration than traditional joint reinforcements, while they cause little effect on stress distribution.关键词
水工结构/减震/形状记忆合金/高拱坝/横缝/耗能阻尼Key words
hydraulic structure/ seismic resistance analysis/ shape memory alloys/ high arch dam/contraction joints/ damper energy dissipation分类
建筑与水利引用本文复制引用
孙万泉,吕爱钟..高拱坝横缝间布设SMA耗能棒材的减震分析与研究[J].水力发电学报,2011,30(2):96-99,106,5.基金项目
国家自然科学基金(50874047) （50874047）
华北电力大学青年基金(200722002) （200722002）
水文水资源与水利工程科学国家重点实验室开放研究基金(2009491011) （2009491011）
