【摘要】 研究预应力混凝土梁自动优化设计问题的重要作用在于:选择梁体的最优截面;确定预应力钢筋的最优形状和自动绘制结构图。本文介绍结构自动优化设计问题作为约束非线性规划的公式化。采用可变容差法及SUMT法分别求解。根据所得的解,自动绘制结构图。提供程序系统(SBAODS),用该系统运行的几个设计实例给出令人满意的结果。更多还原

【Abstract】 The problem of automated optimization design of P.C. beams is studied in this paper. The work mainly consists of determining the optimal cross section of beams and the layout of prestressing tendons as well as devising a function of automatic drafting for structural drawings. The problem is treated as the formulation of constraint nonlinear programming and solved by both the Flexible Tolerance Method and Sequential Unconstrained Minimization Technique The structural drawings are automatically drafted according to the solution to the optimization poblem. A computer programming (SBAODS) is developed accordingly. Satisfactory results are obtained from several sample designs produced by this system.更多还原