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 Gird With With Minimum Cost

建议采用变量分解的策略简化微曲面网架的最小造价设计，并应用组合型离散优化算法求该类网架结构优化多数的最佳匹配方案。通过实际计算指出在大跨度情况下微曲面网架比平板网架具有大大降低造价的优势。

A variable decompostion strategy is suggested to reduce the cost minimizationdesign of the less-curved surface gird,and a discrete combination optimization algorithm isdeveloped to obtain the achiveing optimal matching scheme for all variables of this kind ofgird structure. It is pointed out according to the calctilation that,under the coiidition of largespan,the less-curved stirface grid has greater advantage over the plane one in decreasing theconstuturecost.