Horizontal Load And Defect Analysis Of Effects On The Bearing Capacity Of The Fastener Scaffold

Fastener type steel pipe scaffold structure system is one of the most widely used at present in our country the scaffold structure, and dismantling of its simple convenient, strong commonality, economic use, the advantages of high bearing capacity. But this kind of structure in the process of design and use of still have a lot of drawbacks, but in the practical engineering management and material inspection link. That the scaffold structure collapse accidents have occurred, to people’s lives and property caused heavy losses. So the study of fastener type steel pipe scaffold has important theoretical significance and practical engineering significance.In this paper, on the basis of analysis about the scaffolding collapse, the whole model, finite element analysis software ansysy to establish a scaffold on the scaffold in only the vertical load and vertical under the joint action of horizontal loading, the eigenvalue buckling analysis and nonlinear buckling analysis,By varying the scaffold structure interval(1.8 m, 1.5 m, 1.2 m, 0.9 m, 0.6 m), and vertical and horizontal distance(1.5 m, 1.2 m, 1.0 m, 0.8 m, 0.6 m), across a high number(4 across different, 8, 12 cross) to analyze the bearing capacity of structure under two conditions change, the main factors influencing the bearing capacity.With initial bending and early lateral as parameters on the structural defects with direct method to calculate, for their effect on the structure. With initial defects(0, 3 L / 1000, L / 220) and tightening torque(30N·m, 40N·m, 50N·m) to defect the modal parameters are consistent imaginary horizontal force method and the method to calculate and get the structure load-displacement curve, it is concluded that the impact of parameter changes on the structure bearing capacity.