微曲面网架最小造价的离散优化设计  

A Discrete Optimization Design Method for Less-Curved Surface Grid with Minimum Cost

作　　者：许铁生[1] 宋亚楠[2] 

机构地区：[1]西安交通大学,710049 [2]甘肃省建筑工程总公司,兰州730050

出　　处：《建筑结构》1996年第1期9-13,共5页Building Structure

摘　　要：采用变量分解策略简化微曲面网架最小造价设计,并应用组合型离散优化算法求该类网架结构优化参数的最佳匹配方案.实际计算结果表明,在大跨度情况下微曲面网架比平板网架具有显著降低造价的优势.A variable decomposition strategy is suggested to reduce the cost minimization design of the less-curved surface grid,and a discrete combination optimization algorithm is developed to obtain the achiveing optimal matching scheme for all variable of the kind of grid structure. It is pointed out according to the calculation that,under the condition of large span,the less-curved surface grid has greater advantage over the plan one in decreasing the cost.

关 键 词：网架结构 离散优化设计 非线性规划 

分 类 号：TU356[建筑科学—结构工程]