摘要
对分缝拱坝的抗震可靠度的简化计算进行了研究，将拱坝横缝的变形能力考虑为其极限状态，失效的控制变量选用响应最大的接缝的极限变形。结构的效应用地面峰加速度变量来描述，通过缝的最大变形与峰加速度的关系来建立效应与峰加速度之间的关系，从而把一个多维问题简化为几个一维问题，便于工程实际应用。
he simplified calcalation of aseismic reliability of jointed arch dams is studied. The ability to deform of jointed arch dams is taken as the limit state,the limit deformation of thejoint which responses most intensely is selected as the dominant variable. The effect of structure is described by only one variable,i.e.ground acceleration.The correlation between the effect and poak acceleration is established by calculating the largest deformation induced by the peak acceleration,thus the3-D problem is simplified into several 1-D problems. This method is convenient to use in practice.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1994年第5期9-14,共6页
Journal of Hohai University(Natural Sciences)
基金
国家自然科学基金
关键词
拱坝
横缝
抗震
可靠性
计算
Jointed arch dam Aseism ic reliability Limit state Peak acceleration Peak strain
