考虑剪切变形影响的圆筒形结构的初参数法

摘要

Due to reasonable mechanical property and materials saving, cylindrical structure is widely used in special structures , such as grain silo , water tank, cement silo, coal bunker and so on. Common methods calculating cylindrical structure internal forces and displacements do not consider shear deformation effects , and their suitable conditions are often limited. In this paper, on the basis of cylindrical structure calculating model considering shear deformation effects, the initial parameter method is used to derive the formulas of the additional items increased by different loads and the formulas of initial parameter solutions under different boundary conditions. Relatively more accurate internal forces and displacements under different loads and their combinations can be get from these formulas. The data got here can be referenced by the engineering designers.%圆筒形结构由于受力合理，节省材料，在粮仓、水池、水泥库、煤仓等特种结构中得以广泛应用。圆筒形结构内力和位移的常用计算方法没有考虑剪切变形的影响，其适用条件上也往往受到限制。本文在考虑剪切变形影响的圆筒形结构计算模型的基础上，利用初参数法，推导不同荷载作用下所增加的附加项和不同边界约束条件下的初参数的圆筒形结构计算公式。利用上述公式能较准确地计算不同荷载及其组合作用下的内力和位移，得到的数据可供工程设计人员参考。