结构位移计算的新方法及其应用

New method for frame displacement calculation and its application

通过积分运算,给出了仅用区段端点的弯矩、剪力、轴力表示的统一位移简便计算式代替图乘法或内力函数式分段积分,使求指定截面的位移简捷、方便;根据挠度、转角、弯矩的微分关系与弯矩、剪力、均布荷载微分关系相同的原理,提出了以弯矩为“荷载”,绘制结构位移图的实用方法;通过举例说明了位移简便计算式求指定截面位移、力法方程系数自由项的优越性以及“弯矩荷载法”在绘制结构位移图、位移影响线、结构最大动力位移图等方面的应用。

By the integral calculation, the internal force of regional end can indicate the simplified equation to calculate unified displacement. According to the differential relationship of deflection, corner and bending moment, 揵ending moment loading method?is used to draw the structural displacement diagram. Examples are given to show the superiority of the simplified equation to calculate displacement and 搈oment loading method?