柔性地基上框架—桁架结构斜撑刚度优化

BRACING STIFFNESS OPTIMIZATION OF BRACED FRAME STRUCTURE ON FLEXIBLE FOUNDATION

本文在文献〔１〕刚性地基上框架—桁架结构斜撑刚度优化数学模型中，考虑结构—地基相互作用，将位移相互作用影响系数引入优化数学模型中．经对计算结果的回归统计，得出柔性地基和刚性地基上斜撑刚度间的关系。

First,the solution to the bracing stiffness optimization problem of braced frame structure on rigid foundation is studied with the structure soil interaction taken into consideration.Then,the displacement interaction coefficient is introduced into the optimization calculation.Based on the regression analysis of the computed results,the relation of bracing stiffness of the flexible foundation to that of the rigid foundation is obtained,which will surely facilitate the application of the complex optimization results to the engineering design.