Analysis of the influence of erection of scissor braces on the bearing capacity of the wheel-buckled steel pipe supporting formwork system

Abstract

The supporting formwork system as one of the most commonly used temporary structures in the process of building construction, its safety accidents frequently occur. The wheel-buckled steel pipe supporting formwork system is a new type of system developed under this background, and scissor brace as a kind of component in the system, have played an important role in improving the bearing capacity of the system. This paper uses ABAQUS finite element analysis software to establish an accurate simulation model of the foundational frame, and on the basis of this model, explores the influence of different erection methods of vertical and horizontal scissor braces on the overall bearing capacity of the frame. When erecting vertical scissor braces to reinforce the foundational frame, priority should be given to erect on the outer facades around the frame, and secondly consider satisfying the arrangement on the three facades. In the process of erecting horizontal scissor brace, the priority of the erected horizontal layer should be considered, that is the sub-bottom horizontal layer, sweeping rod horizontal layer, middle horizontal layer, sub-top horizontal layer, top horizontal layer.