文档介绍：风载荷作用下整体式附着脚手架半刚性连接有限元分析
风载荷作用下整体式附着脚手架半刚性连接有限元分析
摘要:针对整体式附着脚手架结构复杂,难以用理论的方法较准确的进行强度分析等,本文利用有限元ANSYS软件建立两跨连续结构有限元模型,并对扣件部位进行了半刚性连接处理,然后对这种结构模型进行有限元分析。确定了设计载荷工况,在风载荷作用下对整体式脚手架进行了强度分析,分析研究表明,该脚手架满足强度及挠度要求,从而验证了该整体式附着脚手架的安全性。
关键词:脚手架;ANSYS;半刚性连接;设计载荷;风载荷
中图分类号:: A
Finite element analysis of the whole raising scaffold with semi-rigid collection on the effect of wind load
Abstract: In this paper a finite element model of the whole raising scaffold is build by using ANSYS software because of plex structure which makes it difficult to use theoretical method to calculate accurately. Some part of the structure such as fastener is taken as semi-rigid connection. A finite element analysis is calculated by using the model. The design load case is determined, and the wind load is calculated. The strength analysis of the whole raising scaffold is finished. The results show that the strength and deflection of the scaffold meet the requirements which verifying the security of the attachment of the whole scaffold.
Keywords: raising scaffold; ANSYS; semi-rigid collection; design load; wind load
0 引言
整体式附着脚手架由于其组装快捷,提升简便,布置灵活等优点得到了广泛的应用。近年来出现了不少新型附着式脚手架,对此涉及到脚手架使用设计中很多安全问题,例如在风载荷作用下脚手架的强度问题、合理的结构支撑模型、节点的半刚性及整体极限承载力分析等等。与此同时,国内相应出现了较完善的相关技术标准[1]。也有不少学者研究结构的布置,内力计算等。陈世教[2]对整体提升脚手架进行了内力计算,该计算方法具有通用性;岳峰[3]对高层建筑附着升降脚手架风载荷进行了理论计算,其计算方法在工程上具有可操作性;张卫红[4]对扣件式脚手架半刚性节点进行了计算,