基于齿行法的仅受应力约束的连续梁结构优化计算  

The Structural Optimization of the Continuous Girder Structure only under the Stress Constrain Based on the "Zigzag" Method

作　　者：焦杨[1] 刘景园[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124

出　　处：《南昌大学学报（工科版）》2008年第4期398-400,共3页Journal of Nanchang University(Engineering & Technology)

摘　　要：论述了运用齿行法对静定或超静定结构进行结构优化计算的优势,并在此基础上详细给出了其具体的算法步骤。在此理论基础上,运用齿行法对一仅受应力约束的连续梁实例进行结构优化分析。分析表明,齿行法在解决仅有应力约束的静定或超静定结构结构优化问题时,它一方面利用满应力条件来决定搜索方向和步长,另一方面又及时把设计点拖回到可用域的边界上来。齿行法相对于其他结构优化方法最大的优点即迅速有效的选代过程。The article firstly indicates the advantages of structural optimization counting of determinate or indeterminate structure, based on the ＂zigzag＂ method, then details the steps of the specified algorithm. Based on this theory, the ＂zigzag＂ method is used to optimize an example of continuous girder structure only under the stress constrain. When calculating the structural optimization of determinate or indeterminate structure by the ＂zigzag＂ method, it not only determines the directions and step lengths under the condition of full stress but also moves design points back inside the feasible region in time. Compared to some other structural optimization methods, the key of ＂zigzag＂ method is its efficient iterate process.

关 键 词：结构优化 齿行法 应力约束 

分 类 号：TU322[建筑科学—结构工程]