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针对波形钢腹板与混凝土板的连接形式,通过有限元模拟分析,提出对于具有钢翼缘的波形钢箱梁应考虑其腹板面内刚度的必要性。通过对国外已建34座波形钢腹板箱梁桥的腹板进行统计分析,得出波形钢腹板面内刚度受波形腹板的腹板高度与腹板厚度比值的影响较大的结论,并引入“有效宽度”的概念,提出了能包罗常用波形腹板有效宽度的简单有效的面内刚度计算公式。
Aiming at the connection between corrugated steel webs and concrete slabs, the necessity of considering the in-plane stiffness of corrugated steel box girders with steel flanges is proposed through finite element analysis. Through the statistical analysis of the webs of 34 corrugated steel web box girders bridged abroad, the conclusion is drawn that the in-plane stiffness of corrugated steel webs is greatly affected by the web height and the web thickness ratio of corrugated webs, The concept of “effective width” is introduced and a simple and effective calculation formula of in-plane stiffness that can cover the effective width of common corrugated webs is proposed.