- 摘 要
-
許鐵生 （西安交通大學(xué) 710049）宋亞楠 （甘肅省建筑工程總公司 蘭州 730050）
[提要] 采用變量分解策略簡化微曲面網(wǎng)架最小造價設(shè)計，并應(yīng)用組合型離散優(yōu)化算法求該類網(wǎng)架結(jié)構(gòu)優(yōu)化參數(shù)的最佳匹配方案。實際計算結(jié)果表明，在大跨度情況下微曲面網(wǎng)架比平板網(wǎng)架具有顯著降低造價的優(yōu)勢。
[關(guān)鍵詞] 網(wǎng)架 最小造價 離散優(yōu)化設(shè)計 敏度分析 非線性規(guī)劃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 advfantage over the plan one in decreasing the cost.
Keywords: grid; minimization cost; discrete optimization design; sen.sitive analysis; nonlinear pro-gramming
