碗扣式模板支撑体系节点半刚性研究  

Analysis on the Cuplock Template Support System with Semi-Rigid Connettion

作　　者：李闯[1] 

机构地区：[1]辽宁工程技术大学建筑工程学院,辽宁阜新123000

出　　处：《土木建筑与环境工程》2013年第S2期24-27,共4页Journal of Civil,Architectural & Environment Engineering

摘　　要：碗扣式模板支撑体系中上碗扣的拧紧程度对节点初始刚度有较大影响,而节点初始刚度大小又决定架体稳定承载力的大小。使用MATLAB应用程序对两者之间进行二阶及三阶数值拟合,发现三阶拟合结果的精确度要高于二阶拟合结果,并给出三阶拟合表达式。应用ANSYS有限元软件建立与实体相对应的模型,模拟节点在铰接、刚接以及不同初始刚度情况下支撑体系稳定承载力的变化情况,并将模拟结果与实际架体稳定承载力进行对比。发现节点为铰接和刚接连接状态时的模拟结果与实际架体相差较大。当节点拧紧力矩在35N.m^50N.m(节点初始刚度在39.25kN./rad^54.07kN./rad)之间的节点半刚性模型模拟结果与实际架体承载力较为接近。The Cuplock Template supports system joint initial rigidity and bowl buckle tightening torque was closely linked,with MATLAB applications for the two order and three order numerical fitting between them,found that three order fitting accuracy was higher than two order fitting results.Using ANSYS finite element software to establish the corresponding with the entity model,the changes in simulated nodes hinged,rigid and different initial stiffness condition for supporting system,and the simulation results were compared with the actual bearing capacity of the frame body stability.Find node is hinged and rigid connection simulation results state and actual frame difference.When the simulation results between node tightening torque of the 35N.m^50N.m and the actual time the frame carrying capacity is close,the node for the semi-rigid connection state.In order to show that the semi-rigid joint model can simulate accurately with the actual capacity of the Cuplock Template supports system.

关 键 词：MATLAB拟合 碗扣式节点 承载力 半刚性节点 

分 类 号：TU755.2[建筑科学—建筑技术科学]