剪切变形对刚框架结构二阶效应的影响  

Shear Effects On Second Order Analysis of Frames

作　　者：刘冬梅[1] 孙香花[2] 贾征 

机构地区：[1]东南大学土木工程学院,南京210009 [2]南京理工大学理学院,南京210094 [3]石家庄铁路建设管理处,石家庄050051

出　　处：《石家庄铁道学院学报》2002年第1期46-49,共4页Journal of Shijiazhuang Railway Institute

摘　　要：以梁柱理论中考虑剪切变形影响的割线刚度为出发点 ,导出单元的切线刚度 ,并由此探求考虑剪切变形影响的稳定函数模型的计算方法。经算例表明 ,该计算方法精确、可靠、方便。In this paper,the tangent stiffness of the element is derived,based on the secant stiffness from the beam column theory with shear effects considered.The numerical method is explored to deal with the calculating problems in numerical processing of the stability function.Through the example,the proposed formulas and methods are precise,reliable,and convent to apply.

关 键 词：稳定函数 割线刚度 切线刚度 剪切变形 刚框架结构 二阶效应 

分 类 号：TU323.5[建筑科学—结构工程]