Abstract
During the simulation analysis solution on temperature control and thermal stresses fields of concrete dams’ construction, it is so huge finite element meshes, complex environmental conditions of construction, difficulties in boundary features description that its computational process is time-consuming and consumes far too much storage space. To solve the problem above and reduce calculations, two fast algorithms are introduced. One is the Overall Planning algorithm which makes the simulation process eliminate repetitive costs; the other is the Incomplete Cholesky Conjugate Gradient algorithm including element by element which accelerates the solution of systems of linear equations of the finite element method and requires less storage space. Based on two algorithms above, the calculation program is developed to process the simulation analysis of the finite element model of a million DOF on personal computers and applied to the temperature forecasts and optimized design of temperature control measures in several high concrete dams. It is shown that the calculation results are reliable and accurate, the acceleration is very efficient.
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