阶梯式连续梁的有限三弯矩方程及刚度分析  

THE FINITE THREE-MOMENTS EQUATIONS AND STIFFNESS ANALYSIS OF CONTINUOUS LADDER BEAM

作　　者：林成厚[1] 李进京[1] 李汝莘[1] 李茂兵[1] 

机构地区：[1]山东农业大学机械与电子工程学院,山东泰安271018

出　　处：《山东农业大学学报（自然科学版）》2002年第2期212-216,共5页Journal of Shandong Agricultural University：Natural Science Edition

摘　　要：应用迭代法对阶梯式简支梁挠曲线的有限差分方程组进行分析、求解 ,建立有限转角及挠度方程 ,推导了阶梯式连续梁的有限挠度方程及有限三弯矩方程 ,并据该方程进行了弯曲刚度分析 ,得到足够精确的结果 。By analyzing the set of finite difference equations of the deflection curve of continuous simple-supported beam,the three-moments of rotation and deflection are established.Then the finite three-moments equations and finite deflection equations of continuous ladder beam are derived.Based on these equations,sufficient accurate results of stiffness analysis can be obtained,so a very practical method of engineering computation is supplied.

关 键 词：有限差分 挠度 阶梯式连续梁 有限三弯矩方程 刚度分析 

分 类 号：TB124[理学—工程力学]