梭形钢屋架中张弦梁与管桁架方案的对比分析

Comparison and analysis of BSS and pipe truss in design of steel truss with shuttle form

用有限元方法分析了张弦梁和管桁架结构在梭形钢屋架设计中的力学性能,并对比了经济指标,指出在跨度不大的情况下,设计合理的管桁架的建造费用与张弦梁基本相等,并且避免了施工过程中的找形困难和预应力张拉的施工步骤,是个值得考虑的方案。

The paper analyzed the mechanical property of BSS and pipe tress in design of shuttle form tress, compared their costs, and pointed out that the cost of rationally designed pipe tress is close to that of BSS and can avoid the difficult of form finding, reduce the stage of prestresstension, which is a feasible choice when the span of the truss is not very long.