摘要
建立了拉索式空间预应力钢桁架优化分析的计算方法。利用该方法对不同的预应力立体钢桁架结构方案进行了优化分析 ,通过大量计算得到了相应结构的总用钢量、最大挠跨比与钢索预拉力、外荷载等因素的变化关系。并讨论了不同结构方案的优化结果与布索形式和高跨比 (桁架高度 )的关系 。
The computational method for optimization of the spatial cable\|prestressed steel trusses is further put forward.Using the optimum method,different prestressed steel trusses are analyzed and the relations between total steel products,the maximum ratio of deflection to span and the pretension of the cables,external loads of the corresponding structures studied are obtained upon a large amount of computations.The effects of arrangement of cables and the ratio of height to span on the optimum results are also studied,which provides a basis for plan choosing and design of spatial cable\|prestressed steel trusses.
出处
《工业建筑》
CSCD
北大核心
2003年第3期57-59,共3页
Industrial Construction
基金
宁波市重点博士资助项目 (0 1J2 0 10 1-2 0 )
宁波市科委计划项目(0 0 12 0 5 4)
关键词
拉索式预应力
立体钢桁架
优化
外荷载
预应力
spatial prestressed steel truss\ optimization analysis\ plan discussion
