Automatic limit and shakedown analysis of 3-D steel frames
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DOI:
https://doi.org/10.15625/0866-7136/29/3/5544Keywords:
limit analysis, shakedown analysis, plastic hinges, space frames, Linear programmingAbstract
This paper presents an efficient algorithm for both limit and shakedown analysis of 3-D steel frames by kinematical method using linear programming technique. Several features in the application of linear programming for rigid-plastic analysis of three-dimensional steel frames are discussed, as: change of the variables, automatic choice of the initial basic matrix for the simplex algorithm, direct calculation of the dual variables by primal-dual technique. Some numerical examples are presented to demonstrate the robustness, efficiency of the proposed technique and computer program.Downloads
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