基于生死单元原理的拱坝体形优化

摘要

Taking the finite element software ANSYS 10.0 as a platform and using the life and death unit theory, the casting process in dam-body construction is simulated here. Simultaneously, taking into account the temperature load as the coupling load, the stress analysis is made for the arch dam, and under two conditions of the step-by-step role and overall role of the arch dam' s gravity load, the comparison analysis is made for the structure, then the arch dam' s shape is optimized, which would make the dam body smaller and more realistic in application.%以有限元软件ANSYS10．0为平台，运用生死单元理论，模拟坝体的施工浇注过程，同时考虑温度荷载作为耦合荷载的形式对拱坝进行应力分析，对拱坝重力荷载分步作用和整体作用两种情况下进行结构对比分析，得到了优化的拱坝体形，使优化后的坝体体积较小，更加符合实际应用。