摘要
分析了用位移法计算有侧移斜杆刚架所遇到的问题,给出了确定独立结点线位移通用的简单算法.运用运动学相对运动的概念,导出了直接确定弦转角的一种简便方法.由荷载等效变换的思想导出了斜梁与相应水平梁的固端弯矩相同的结论,并利用平衡条件和虚功方程推导出了多跨有侧移斜杆刚架与侧移相应的位移法方程的建立方法.
The displacement method is applied to rigid frames attached oblique rods with sliding displacements. A simple calculation for translation displacement of independent joint is provided. A simple method for calculating slope-deflection is determined based on the concept of relative movement. The fixed-end moment of a oblique beam is same as that of a relevant horizontal beam by load equivalent transformation. Displacement equations of multi-span rigid frames attached oblique rods with sliding displacements are deduced using equilibrium conditions and virtual work e- quations.
出处
《郑州大学学报（理学版）》
CAS
北大核心
2010年第4期116-120,共5页
Journal of Zhengzhou University:Natural Science Edition
关键词
斜杆刚架
弦转角
固端弯矩
虚功方程
diagonal brace frame
chord turn
fixed-end moment
equation of virtual work
