考虑腹板屈曲后强度的钢梁设计方法

Design Method of Steel Girders Considering the Post-buckling Strength of Web Plate

提出了按考虑腹板屈曲后强度的方法设计钢梁时,钢梁试选截面的设计方法。算例表明,用该建议的方法设计,初选截面一次就能通过截面验算,并且一般能得到用钢量较少的优良截面。

This paper advances a design method of selecting initial cross sections of steel girders when designing steel girders on the basis of considering the post-buckling strength of web plates.Calculations show that when designed by the method proposed in this paper,the initial selecting cross section can pass the checking computations on its first selection,and generally can be a fine cross section with relatively lower steel consumption.