钢-砼连续组合梁截面优化设计

Section optimum design of the steel-concrete continuous composite beam

为最大限度地发挥组合梁材料性能、解决组合梁截面尺寸最优化问题,采用有限元分析和优化算法相结合的方式,基于ANSYS的参数化设计语言APDL编制了分析文件和优化控制文件,对钢-砼连续组合梁截面进行了优化分析。经过优化分析,结合梁造价降低312元,该方法优化效果显著、效率高,有利于工程中组合梁的推广与应用,可为其他结构的优化提供参考。

In order to maximize the material property of composite beams and to solve the optimization problem of cross section size of composite beams, this paper uses the way combining finite element analysis with optimization algorithm, compiles the analysis file and optimizes the control file based on the ANSYS＇s parametric design language APDL, and carries out optimization analysis of the steel-concrete continuous composite beam section. After optimization analysis, the cost of the beam is reduced by 312 yuan, the method has obvious optimization effect and high efficiency, and is beneficial to the popularization and application of the composite beam in the project, having far-reaching significance. The optimization concept of this paper can provide reference for other structures.