建筑楼梯对钢筋混凝土框架结构抗震设计影响的研究

Study on the Effect of Architectural Stairs on Seismic Design of Reinforced Concrete Frame Structure

汶川地震中,框架结构的楼梯发生了严重破坏,玉树地震后,楼梯再一次成为人们关注的焦点。为了分析建筑楼梯对结构抗震设计的影响,本文采用有限元分析软件ETABS模拟分析计入与不计入楼梯对钢筋混凝土框架的影响。通过内力分析对比,突出楼梯对整体结构抗震性能的重要性,提高楼梯的抗震性能,并对钢筋混凝土框架结构楼梯构件提出抗震设计建议。

In the Wenchuan earthquake,the stairs of frame structure takes seriously damaged.After the Yushu earthquake,the stairs once again become the focus of attention.The author uses ETABS for simulating and analyzing effects of stairs on the reinforced concrete frame aiming at the influence analysis of stairs on structural seismic design.Through the internal force analysis and comparison of the whole structure,the importance of stairs is outstanding for seismic performance,and the seismic performance is improved.The reinforced concrete frame structure seismic design suggestions are put forward.