(同济大学建筑工程系，上海200092)

［提要］基于位移准则优化算法，针对高层建筑钢结构特点，给出了基于通用表达的风荷载下高层建筑钢结构位移准则优化算法公式，提出了层间位移限制的整体约束，和强度、稳定与挠度限制的局部约束相结合的实用综合优化算法策略。算例分析表明，此综合优化算法对钢框架与钢框撑结构均具有较好的收敛性，且优化结果同时满足了整体与局部约束，具有很好的直接实用性。

［关键词］高层钢结构；结构优化；位移准则法

Multilever Optimization Research for Structural Design of Tall Steel Buildings/Gong Hai, Li Guoqiang, Zhang Zhiyong (College of Civil Engineering, Tongji University, Shanghai 200092, China)

Abstract:Based on the existed fruits in the displacement rule design and aiming at optimization of tall steel buildings, the optimization calculation method based on the displacement principle of high-rise steel structure under wind load with common expression is presented. The applied integrated optimization method with the combination of integral and local restriction is put forward. The results of case analysis show that the new method has good optimization convergence and practicality.

Keywords:tall steel building; structure optimization; displacement rule design

*建设部科技攻关资助项目(03-2-131)。