陈友泉  魏潮文  郭立湘
    （浙江杭萧钢构股份有限公司  杭州 310003）

[提要]  针对我国现行钢结构规范中的不足，探讨Z型连续搭接檩条的结构性能：荷载分布、搭接嵌套松动、内力计算、侧向稳定以及构件极限承载力等问题。此外，还讨论了带隅撑檩条的计算特点和双檩条的构造优点，提出了适合实际工程的算法，使冷弯薄壁型钢檩条设计更为经济合理。方法和结论可供设计人员参考。
[关键词]  Z型檩条  连续搭接  蒙皮效应  拉条

The structure behaviors of the continue Zee purlins with lap connection, work loose of lap connection, mechanic analysis, lateral buckling and ultimate resistance capacity etc.,  has been studied. Besides, the mechanic analysis of the purlins with flange brace and the superiority of double-purlins are also discussed. The analysis method for practical projects is suggested which results in designing purlins reasonably and economically.The suggestion may be as a reference to steel structure design.
Keywords: Zee purlins; lap connection; diaphragm effect; tension bar