拱坝应力分析的三维样条边界元法  

3 D SPLINE BOUNDARY ELEMENT METHOD FOR THE STRESS ANALYSIS OF ARCH DAM

作　　者：王章虎[1] 王有成[1] 乔润德[1] 

机构地区：[1]合肥工业大学副25信箱

出　　处：《合肥工业大学学报（自然科学版）》1996年第4期75-81,共7页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金

摘　　要：文章实现了拱坝与地基耦合分析。用样条插值拟合拱坝几何外形，用无限样条边界元模拟地基，用传递矩阵法分解子结构，用奇性校正特解场法计算边界应力。抛弃传统拱坝应力分析方法中的拱梁体系简化和关于地基的Ｆ．ｖｏｇｔ假定，即使在稀疏剖分下，也能够给出精度较高的位移场、应力场和地基反力场。In this paper, arch dam foundation interaction was analyzed by using 3 D spline boundary element method(3DSBEM). With spline interpolation approaching shape of arch dam, infinite spline boundary element modeling the fondation, transfer matrix method to solve substructure problem, particular solutions method adjustedby singularity for calculationg boundary stress. We abandon arch beam simplification and foundation F. vogt suppositions in traditional arch stress analyses.Even with coarse division, we can obtain the displacement field,stress field and base reaction field of the arch dam in any state with fine precision. It will provide with a new way for the stress analysis of arch dams.

关 键 词：拱坝 应力分析 耦合作用 三维样条 边界元法 

分 类 号：TV642.4[水利工程—水利水电工程]