Parallel computation of seismic analysis of high arch dam (original) (raw)

Parallel computation programs are developed for three-dimensional meso-mechanics analysis of fully-graded dam concrete and seismic response analysis of high arch dams (ADs), based on the Parallel Finite Element Program Generator (PFEPG). The computational algorithms of the numerical simulation of the meso-structure of concrete specimens were studied. Taking into account damage evolution, static preload, strain rate effect, and the heterogeneity of the meso-structure of dam concrete, the fracture processes of damage evolution and con¿ guration of the cracks can be directly simulated. In the seismic response analysis of ADs, all the following factors are involved, such as the nonlinear contact due to the opening and slipping of the contraction joints, energy dispersion of the far-¿ eld foundation, dynamic interactions of the dam-foundationreservoir system, and the combining effects of seismic action with all static loads. The correctness, reliability and ef¿ ciency of the two parallel computational programs are veri¿ ed with practical illustrations.