Journal of Shanghai Jiao Tong University ›› 2004, Vol. 38 ›› Issue (06): 992-995.doi: 10.16183/j.cnki.jsjtu.2004.06.031

Special Issue: 王建华教授学报发文专辑

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Application of SQP Algorithm in 3D Lower Sequential Quadratic Programming Limit Analysis

YANG Hong-jie1,2(), GE Xiu-run1, WANG Jian-hua1, FU De-ming2   

  1. 1.Dept. of Civil Eng. , Shanghai Jiaotong Univ. , Shanghai 200030, China
    2.Shanghai Tunnel Research Inst. , Shanghai 200014
  • Received:2003-03-17 Online:2004-06-01 Published:2021-04-25


A statically admissible stress field was constructed by using nonlinear optimization sequential quadratic programming (SQP) algorithm and FEM. Based on the rigid plastic assumption for soil materials, adopting lower bound theorem, the bearing capacity of rectangular surface footing was calculated. The example indicates that the application of SQP algorithm is successful.

Key words: soil mechanics, limit analysis method, lower bound theorem, non-linear programming, bearing capacity of footing, sequential quadratic programming algorithm

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