基于有限单元法的钢-混凝土组合梁截面优化设计

Optimal section design of steel concrete composite beams based on the finite element

给出了钢-混凝土组合梁截面计算机辅助优化设计的有效方法,以有限元结构分析和优化算法相结合为手段,提出了一种符合实际情况的钢-混凝土组合梁的剪力连接模式,建立钢-混凝土简支组合梁有限元分析模型、优化参数模型,优化数学模型,用AN SY S的参数化设计语言编制了分析文件和优化控制文件,经计算获得钢-混凝土组合梁最优截面形式.该方法的优化效果显著,并且效率高,可广泛应用于钢-混凝土组合梁截面优化设计工程.

Introduces the efficient computer aided design method to optimize the section of steel- concrete composite beams by combining FEM structure analysis with optimization algorithm and an efficient shearing force link model of steel-concrete composite beams. The authors establishe the finite element analysis model, optimization parameter model, optimization mathematics model of steel--concrete composite beams and programs analysis file and optimization control file by using the ANSYS parameter design language. The optimum of the steel--concrete composite beams section is obtained after computing and the optimization result indicates that the method is efficient to optimize the section of steel--concrete composite beams. So it could be applied extensively in the engineering of the steel-concrete composite beams section optimization design.