上下部结构对直埋式蜗壳静力特性的影响  

Influence of Super and Sub-structures on Static Performances of Directly-embedded Spiral Case

作　　者：张存慧[1] 张运良[1] 马震岳[1] 

机构地区：[1]大连理工大学土木水利学院,辽宁大连116024

出　　处：《水电能源科学》2008年第5期107-109,141,共4页Water Resources and Power

基　　金：国家自然科学基金资助项目(50679009);大连理工大学青年教师培养基金资助项目(893219)

摘　　要：基于ABAQUS有限元分析平台,对三峡电站右岸直埋式蜗壳结构选取不同混凝土范围的三个模型进行三维非线性计算,并对蜗壳结构外围混凝土的损伤指标、损伤分布、钢材最大应力及座环柔度值进行了对比分析。结果表明,考虑厂房上下部结构的模型较不考虑上下部结构模型在混凝土的损伤指标、损伤区域、钢材最大应力和座环柔度值都有明显降低,可对后续直埋式蜗壳结构的设计提供参考。The static performances of concrete surrounding the spiral case are greatly affected by the super-＆ sub-structures of hydropower house in numerical computation. In this paper, three FEM models were created and nonlinear analyses were performed based on ABAQUS software platform. Tensile damage in concrete, maximum von-Mises stress of sted plates, and compliance value of stay ring were presented and compared for these three numerical models. Results show that tensile damage in concrete, maximum von-Mises stress of steel plates, and compliance value of stay ring decrease significantly in the case considering the effects of super- ＆sub- structures, which can be a reference to the design of directly-embedded spiral case.

关 键 词：直埋式蜗壳 非线性分析 损伤 座环柔度 

分 类 号：TV311[水利工程—水工结构工程] TV331