Advanced Steel Construction

Vol. 12, No. 3, pp. 316-327 (2016)


ANALYSIS OF DOOR-TYPE MODULAR STEEL SCAFFOLDS BASED ON A

NOVEL NUMERICAL METHOD

 

Zhihua Chen1,2,* and Zhongwei Zhao2

1 State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin UniversityTianjin 300072,China

2 Department of Civil Engineering, Tianjin University, Tianjin, 300072, China

*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)

Received: 21 August 2015; Revised: 28 August 2015; Accepted: 4 October 2015

 

DOI:10.18057/IJASC.2016.12.3.6

 

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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.

 

KEYWORDS

Double element method, member imperfection, door-type scaffold, buckling behavior, semi-rigid joints


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