CAJ | 학술논문

从计算模型、施工过程、架体材料、设计计算程序和设计者的能力等方面总结以往造成模板支撑架体倒塌事故的原因，结合通用有限元软件ANSYS和结构有限元软件SAP2000，对模板支撑体系建立42种有限元数值模拟模型，通过特征值屈曲分析计算出各自的极限荷载，得出改变立杆间距、水平杆步距、剪刀撑设置、封顶杆至托梁的高度、节点是否半刚性、地基不均匀沉降点的位置、荷载偏心大小七个因素分别对架体稳定承载能力的影响，且这些因素也是改造现有支撑架体时应该重点考虑的七个方面。
종계산모형、시공과정、가체재료、설계계산정서화설계자적능력등방면총결이왕조성모판지탱가체도탑사고적원인，결합통용유한원연건ANSYS화결구유한원연건SAP2000，대모판지탱체계건립42충유한원수치모의모형，통과특정치굴곡분석계산출각자적겁한하재，득출개변립간간거、수평간보거、전도탱설치、봉정간지탁량적고도、절점시부반강성、지기불균균침강점적위치、하재편심대소칠개인소분별대가체은정승재능력적영향，차저사인소야시개조현유지탱가체시응해중점고필적칠개방면。
Based on the calculation model,the construction process,the frame body materials,the calculation program and the designer's ability,this paper analyzed causes of the accident in collapse of framework support,combined with the general finite element analysis software ANSYS and the structure finite element analysis software SAP2000,set up 42 numerical simulation models of finite element of framework support. The authors carried out an eigenvalue buckling analysis to calcu-late the ultimate load. The result indicated the key influence factors of the bearing capacity of the frame body,including the change space of standing tube,lift height of flat tube,diagonal bracing,horizontal bar rod to the height of the beam,node performance,and load eccentricity,therefore,these factors considered carefully in transforming existing support frame bodies.