在腹板利用屈曲后强度的条件下,推导了门式刚架中焊接H形截面构件设置横向加劲肋的计算式,给出了相应的计算数据表格。算例表明,应用所给出计算式,能较容易地解决门式刚架构件设置腹板加劲肋的问题。 Under the condition of using the strength of buckling after web buckling, the calculation formula of transverse stiffener in H-section welding of portal frame is deduced, and the corresponding calculation data table is given. The examples show that the application of the given formulas can solve the problem of the web stiffener in the portal frame members.