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《Sichuan Building Science》 2012-01
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Space truss structure optimization design based on improved sequential linear programming method

ZHAO Guobao,ZHU Jiejiang,YANG Xiao(Department of Civil Engineering,Shanghai University,Shanghai 200072,China)  
In the optimization of space truss design,if the cross-sectional areas are the only design variables,we can not get the optimal solution.Only the cross-sectional areas of truss structure and node coordinates are design variables simultaneously,we could significantly reduce the structural weight and cost.Optimal designs of space truss structure are mostly complex non-linear problems,sequential linear programming method is the typical algorithms to solve nonlinear problems.This paper,the improved sequential linear programming method is applied to optimize the design of space truss structures in combination with SAP2000 API functions.The numerical results show that the improved sequential linear programming method has good convergence and stability and can effectively carry out the shape optimization design of space truss structure.
【CateGory Index】: TU323.4
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