钢檩条的概念设计及计算方法

The concept design and calculation method of steel purline

介绍了檩条的选型,拉条的布置,檩条挠度起控制作用与强度(或稳定)起控制作用的用材选择。总结了檩条在竖向荷载工况下、恒载与风吸力工况下的计算方法,檩条整体稳定验算时,拉条的布置与檩条的平面外计算长度的确定。给出了檩条计算算例。计算表明,在竖向荷载及风吸力均较大时,可采用双层檩条体系。

Introduces the selection of purline,the layout of the steel bar,and the selection of the material selection of the purline when the control effect and strength（or stability）. Sums up the calculation method of purline under vertical load,constant load and wind suction,and the determination of the layout of the steel bar and the out-of-plane calculation length of the purline. A calculation example of purline is given. The calculation shows that double-deck purline system can be used when vertical load and wind suction are large.