连续双工字钢板组合梁优化设计概述

Overview of optimum design of continuous double-I-shaped ateel plate composite beams

通过对比分析双工字钢板组合梁桥不同主梁间距、不同大横梁间距时桥面板的受力状态,得出了双工字钢板组合梁合理主梁间距及合理横梁间距,同时采用数学优化方法对桥面板厚度及配筋进行了优化设计。

The stress state of bridge deck under different main beam spacing and different cross beam spacing is analyzed in this paper. The reasonable main beam spacing and cross beam spacing of double I-shaped steel plate composite beam are obtained by comparative analysis,moreover,the thickness and reinforcement of bridge deck are optimized by mathematical optimization method.