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近年来,由于系统脚手架这种结构形式其较高的倒塌率,使关于脚手架设计成为一个比较引人关注的研究课题。根据试验测试和分析,研究在建筑中安装的系统脚手架结构的承载力和失效模式。研究包括层数、地面高度、边界条件、是否存在斜撑和节点位置在内的系统脚手架的参数。数值研究针对系统脚手架中的附加斜撑量化了系统脚手架的承载力。然而,垂直支撑上不同套筒节点位置的系统脚手架结构的承载力以及不同的地面高度并不会给承载力造成太大影响。因为在系统脚手架结构中斜撑的轴向力并不会明显地随着垂直荷载的增加而增加,因此可以从节约成本的角度缩小斜撑。将分析结果与所做的试验测试的结果相比较,确定了系统脚手架中不同部件的节点刚度。通过节点刚度计算和量化不同层数的系统脚手架的极限设计荷载。这些研究成果有助于比较精确地测定施工现场那些复杂系统脚手架的极限承载力。
In recent years, the scaffolding design has become a more interesting research topic due to its high rate of collapse due to the structural form of system scaffolding. According to the test and analysis of the test, the bearing capacity and failure mode of the system scaffold structure installed in the building are studied. The parameters of the system scaffolding including the number of floors, the height of the ground, the boundary conditions, the presence or absence of bracing and the location of the nodes are studied. Numerical studies quantify the system scaffolding’s bearing capacity by adding additional bracing in the system scaffolding. However, the capacity of the system scaffolding structure with different sleeve joints on the vertical support and the different ground heights do not affect the bearing capacity to a great extent. Since the axial force of the bracing in the system scaffolding structure does not increase significantly with increasing vertical load, it is possible to reduce the bracing from a cost-saving point of view. Comparing the results of the analysis with the results of the tests performed, the node stiffness of the different components in the system scaffold was determined. Calculate and quantify the ultimate design load of system scaffolding with different levels by node stiffness. These findings help to determine the ultimate bearing capacity of complex system scaffolding on the construction site more accurately.