考虑滑移效应的钢-混凝土简支组合梁截面优化设计  

Optimization Design for Cross-Section of Simply Supported Steel-Concrete Composite Beams Considering Interface Slip

作　　者：周琰[1] 周克荣[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《结构工程师》2007年第6期24-27,65,共5页Structural Engineers

摘　　要：以钢-混凝土简支组合梁造价为优化目标函数,在计算组合梁的变形时考虑了滑移效应对刚度的折减,采用复形法作为优化算法,用Matlab语言编制了计算程序。对一简支组合梁算例进行了截面优化设计,效果较好。所用的方法可推广应用于钢-混凝土简支组合梁的工程优化设计。A method for optimization design of cross-section of simply supported steel-concrete composite beams considering interface slip is introduced. Aiming to get the minimum value of manufacturing cost, a mathematical model is developed on condition that the calculation of deflection is based on stiffness degradation owing to interface slip. The complex method is adopted as the algorithm and the computer program is made with Matlab language. The validity and potential of the proposed approach has been demonstrated with a simply supported steel-concrete composite beam.

关 键 词：钢-混凝土简支组合梁 优化设计 滑移效应 

分 类 号：TU398.9[建筑科学—结构工程]