摘要
当前采用的拱坝设计理论不能对薄拱坝超出弹性范围的应力状态进行恰当地描述。本文根据浆砌石材料的本构关系,同时考虑拱坝结构的超静定性,用弹塑性理论来分析浆砌石薄拱坝在超出弹性范围后的应力重分配情况,以手求合理地分析和正确地反映浆砌石薄拱坝的应力状态。通过对几个已建工程实例的计算分析,获得一些应力重分配的基本规律和初步的结论。
The theory of arch dam design adopted at present can't illustrate the state of stress of the thin arch dam beyond the scope of elasticity. According to constitutive equation of masonry materials, and considering the indeterminacy of the structure of arch Jam, the State of stress redistribution when the masonry thin arch dam goes beyond the scope of elasticity is analysed by the elastic-plastic theory to reasonably analyse and correctly reflect the state of stress of it. Some basic rules and elementary conclusions of stress redistribution are obtained by the calculation and analysis of several will-built projects.
关键词
浆砌石
薄拱坝
应力重分配
拱坝
masonry thin arch dam
the elastic-plastic theory
stress redistribution
constitutive equation of masonry materials
arch-beam Structure
