基于SAP2000的钢结构弧形楼梯设计分析

摘要

With the development of architectural functions and styles,different forms of stairs were applied in civil engineering.The curved stair with not standard building plane has complicated path of force transmission.It is difficult to be designed by hand or the common structure design software.This paper presented the design of an curved stair in practical engineering and the finite element model of the arc stair was established based on SAP2000.The static strength and deflection was calculated,the structural response under seismic conditions was studied,and the comfortable degree was analyzed.It makes the structure reliable and gratifies comfort requirements.And the results of analysis were used as design basis.The design idea of the steel curved stair in this paper can be used in similar projects.%随着建筑功能及造型要求的不断提高,不同形式的楼梯正被应用于建筑工程中.建筑平面为非标准形状的弧形楼梯,结构传力复杂,难以通过手算或者常用结构设计软件进行设计.本文介绍某实际工程中的弧形楼梯设计,采用SAP2000建立弧形楼梯有限元模型,分别对该楼梯进行了静力强度及挠度验算、地震工况下的结构响应和舒适度分析,使结构可靠安全并且舒适度得到保证,并将分析结果作为设计依据.文中提及的钢结构弧形楼梯的设计思路,可供类似工程参考.