Γ形单元转角位移方程的力法推导及应用

Derivation and Application of the Slope-Displacement Equation of Γ-Shaped Element by Force Method

常规位移法将结构看作由直杆单元组成,刚架比较复杂时,结点位移较多,计算比较麻烦。本文通过力法和叠加原理对Γ形单元的转角位移方程进行了推导,使得对某些复杂刚架应用位移法求解内力工作量得到简化,并通过实例验证了其适用性。

The structure is regarded as straight bars in conventional displacement method,and the computation is difficult when the frame is too complex and the displacement of joint is too much.In the paper,the slope-displacement equation of Γ-shaped element was derivated by force method and superposition principle,and the internal force computation is simplified to complex frame with lateral displacement by using displacement method.In the end,the feasibility is verified by a case study.