复杂网架结构的设计及优化

The design and optimization of the complex network structure

针对大跨度复杂网架结构,采用三种不同的网架方案进行比较。利用SAP2000分析了局部三层,两层无预应力和两层有预应力网架的杆件受力和节点的位移,并对三种方案进行了动力特性分析。研究分析表明,两层加预应力网架具有优越的受力性能,并可以减少网架结构的用钢量,为大跨度复杂平面网架结构的合理设计,提供了一定参考价值。

For large span complicated network structure, using three different grid for comparison. SAP2000 analysis the local three layers, two layers of non-prestressed and two prestressed truss rod force and displacement of the node, and three options Dynamic Characteristics Analysis. The analysis showed that two floors plus prestressed grid has the superior performance of the force, and can reduce the amount of steel grid structure, provide a certain reference value for the rational design of large-- span complex plane grid structure.