Vol. 14, No. 2, pp. 291-307 (2018)
STRUCTURAL PERFORMANCE AND DESIGN METHOD OF
NEW MORTISE–TENON FULL STEEL-TUBE SCAFFOLD
Liu Hongbo1,2, Zhou Yuan2, Chen Zhiua1,2,* and Liu Qun3
1 State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
2 School of Civil Engineering, Tianjin University, Tianjin 300072, China
3 China Academy of Building Research, Beijing 100013, China
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 12 August 2016; Revised: 26 March 2017; Accepted: 25 June 2017
DOI:10.18057/IJASC.2018.14.2.9
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ABSTRACT
A mortise–tenon steel-tube scaffold, a new steel-tube scaffold, was presented based on ancient mortise–tenon joint in wood structure. Because of better joint mechanics and higher bearing capacity than coupler-type steel-tube scaffold, this new scaffold possesses good market potential. Based on an analysis of the bearing mechanism, a finite element numerical analysis model for the mortise–tenon steel-tube scaffold was established in this study, which was validated as reasonable and accurate by experiment data. Influencing laws of storey height, vertical member interval, X-bracing layout, overall structure height, height of bottom horizontal tube, and height of upper cantilever bar on the mortise–tenon steel-tube scaffold were determined through parameter analysis. A simplified calculation formula of ultimate bearing capacity was established, which verified by FEM results and test data. Research results provide important references for future in-depth studies and engineering applications of the mortise–tenon steel-tube scaffold.
KEYWORDS
Mortise–tenon joint, steel-tube scaffold, numerical simulation, parameter analysis, simplified calculation formula
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