【摘要】 在张弦桁架形态分析的基础上,采用多阶段形态优化设计方法,建立了优化设计步骤及多个优化模型,对比分析了各模型的位形、杆件轴向应力、弯矩、拉索预应力、用钢量等经济技术指标,根据刚度设计要求得到了最合理模型,该模型可为设计经济合理的张弦桁架提供参考。更多还原

【Abstract】 On the basis of shape-state analysis of truss string structure,design steps and some optimization model based on divided-phase shape-state optimization are presented.The shape,axial stress,moment,cable prestress,sum of steel of the model are compared and investigated,and a best model is got according to the demend structure stiffness,which may be a reference for project design.更多还原