王新堂
    （宁波大学建筑工程与环境学院  315 211）

[提要]  在半刚性连接平面钢结构基本假定的基础上，从经典的单元模型（刚度方程）出发，用严格的数学推导建立了杆件两端可具有任意连接刚度的平面钢结构的一般弹性分析计算模型。当模型中的连接约束参数取特殊值时，可退化为经典的计算模型（完全刚性连接和完全铰接），使模型具有一般性。通过算例对计算模型进行了分析比较。
[关键词]  半刚性连接  平面杆系结构  普遍模型

On the basis of the fundamental assumptions suggested for the planar steel structures with semi-rigid connections, the generalized elastic computational model of the planar steel structures which the arbitary connection stiffness can be set at the two ends of the elements is put forward through strict mathematical analysis. As the parameters associated with the connections considered in the model are taken as special values,the computational model can be easily degenerated into the two idealizations: fully rigid and pinned. Finally, the numerical results are put forward.
Keywords: semi-rigid connections; planar structures; generalized model