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介绍一种数值方法并基于改进的计算技术对平面内半刚性钢框架进行优化设计。考虑到几组型钢其相关的离散变量、螺栓直径和钢板厚度,根据遗传算法确定结构每个构件和构件间的优化半刚性节点可选择的最优型钢。目标函数包括了构件和半刚性节点的组合成本以及与强度荷载等级相关的各种约束条件。根据欧洲规范3中详细介绍的分量法来研究梁柱间半刚性节点的性能。通过实际设计的两种结构来证明所提出的设计方法是半刚性钢框架自动设计成本最低的方法。
A numerical method is introduced and the optimization design of in-plane semi-rigid steel frame is based on the improved calculation technique. Taking into account the related discrete variables, bolt diameter and plate thickness of several profiles, the optimal profiled steel can be selected according to genetic algorithm to determine the optimal semi-rigid node between each member and member of the structure. The objective function includes the combined cost of the member and the semi-rigid node and the various constraints associated with the strength load level. The behavior of semi-rigid nodes between beams and columns is studied according to the component method detailed in Eurocode 3. Through the two structures actually designed to prove that the proposed design method is semi-rigid steel frame automatic design the lowest cost method.