摘要
模拟施工逐级加荷,计算了超贫胶结材料坝的应力和应变,通过"虚加刚性弹簧法"和"分步迭代法"解决了超贫胶结材料软化特性引起的负刚度问题,并编制了非线性有限元计算程序,确定了应力控制标准,实现了超贫胶结材料坝的非线性有限元分析。
The stress and strain of over lean cemented material dam were calculated by simulation of stepwise loading in construction. The virtual rigid spring method and fractional step iteration method were adopted to deal with the negative stiffness problem caused by material softening characteristic, and a nonlinear FEA program was complied for determination of the stress control criterion.
出处
《水利水电科技进展》
CSCD
北大核心
2007年第4期42-45,共4页
Advances in Science and Technology of Water Resources
基金
水利部重点科研项目(SZ9509)
