Reference Type: Journal Article Record Number: 1 Author: Chen, Z. H. and Zhao, Z. W. Year: 2015 Title: Analysis of door-type modular steel scaffolds based on a novel numerical method Journal: Advanced Steel Construction Volume: 12 Issue: 3 Pages: 12 Start Page: 316 Short Title: Analysis of door-type modular steel scaffolds based on a novel numerical method DOI: 10.18057/IJASC.2016.12.3.6 Keywords: Double element method, member imperfection, door-type scaffold, buckling behavior, semi-rigid joints Abstract: As supporting scaffolds, door-type modular steel scaffolds steel scaffolds are commonly used in construction. They were repeatedly used in practical project. Member imperfection often occurs when scaffolds were used repeatedly. Influence of member imperfection and joint stiffness on ultimate load of door-type modular steel scaffolds was systematically investigated in this paper. A novel numerical method was adopted and it can be conveniently used based on general finite element software. The method can be adopted for all kinds of scaffold systems. Reliability of the method was validated firstly. Then influence of splice joint stiffness and screw jack stiffness on ultimate load capacity was investigated. Influence of member imperfection was investigated in the end. Author Address: State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University,Tianjin 300072,China