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Steel and Composite Structures
  Volume 20, Number 4, March20 2016, pages 869-887

Research on bearing characteristics of socket-spigot template supporting system
Yan Guo, Chang-Ming Hu and Ming Lian

    The socket-spigot template supporting system is widely used in engineering applications in China. As a newer type of support structure, there has been growing research interest in its bearing capacity. In this paper, four vertical bearing capacity tests were carried out on the basic mechanical unit frame of a socket-spigot template supporting system. The first goal was to explore the influence of the node semi-rigid degree and the longitudinal spacing of the upright tube on the vertical bearing capacity. The second objective was to analyze the displacement trend and the failure mode during the loading process. This paper presents numerical analysis of the vertical bearing capacity of the unit frames using the finite element software ANSYS. It revealed the relationship between the node semi-rigid degree and the vertical bearing capacity, that the two-linear reinforcement model of elastic-plastic material can be used to analyze the socket-spigot template supporting system, and, through node entity model analysis, that the load transfer direction greatly influences the node bearing area. Finally, this paper indicates the results of on-site application performance experiments, shows that the supporting system has adequate bearing capacity and stability, and comments on the common work performance of a socket and fastener scaffold.
Key Words
    socket-spigot template supporting system; basic mechanical unit frame; semi-rigid degree; application performance; numerical analysis
College of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, P.R. China.

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