竖向荷载作用下的框架结构内力计算的分跨法

摘要

考虑杆件远端刚结点处杆件数目、各杆线刚度及梁柱刚度比值的影响,推导出了梁端的转动刚度和传递系数统一计算公式.将框架结构竖向荷载作用下的内力计算分成若干个单柱结构计算,提出的内力计算方法对框架结构的梁柱线刚度比没有范围限制,使用范围广、计算量少、精度高.%Considering the number of members,linear stiffness of every member and beam-column stiffness ratio at distal rigid nodes of member,a unified formula was derived to calculate rotational stiffness and transmission coefficient of beam end.The frame structure was divided into some single column structures to compute its internal force under vertical loads.The method proposed had no scope limitation of beam-column linear stiffness ratio.This method had the advantages of high accuracy,small computational amount and wide range of use.