A BOUNDING PROCEDURE FOR SYNTHESIS OF PRESTRESSED SYSTEMS

被引：4

作者：

KIRSCH, U

机构：

[1] Technion-Israel Inst of Technology,, Dep of Civil Engineering, Haifa, Isr, Technion-Israel Inst of Technology, Dep of Civil Engineering, Haifa, Isr

来源：

COMPUTERS & STRUCTURES | 1985年 / 20卷 / 05期

关键词：

CONCRETE CONSTRUCTION - Prestressing - MATHEMATICAL PROGRAMMING;

D O I：

10.1016/0045-7949(85)90008-2

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Optimal design of indeterminate prestressed concrete systems is stated in a nonlinear programming form. The design variables are the concrete dimensions, tendon coordinates, and prestressing force. The constraints are related to various behavior and design requirements and the objective function represents the overall cost. On the basis of the transitivity property, a lower bound on the concrete volume is determined by solving a reduced problem. The corresponding minimum prestressing force, calculated by linear programming, is an upper bound. Similarly, a lower bound on the prestressing force is determined by assuming the maximum concrete dimensions. Based on the two bounding solutions a lower bound on the objective function is evaluated. An efficient design procedure is proposed.

引用

页码：885 / 895

页数：11

共 23 条

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