摘 要 一个平面汇交力系的平衡条件是其力多边形必须闭合,依其条件,利用图解法和计算机中的AUTO CAD绘图工具,迅速准确地求解一个结点上的两个未知力,并以其类推求解桁架各杆内力。特别在复杂的桁架内力计算中更显示其法优越性。
关键词 AUTO CAD 图解法 桁架内力
APPLYING AUTO CAD TO OBTAIN INTERNAL FORCE OF TRUSS
Liu Yuehua
(Jiangsu Yancheng Institute of Building Design and Reseach, Yancheng 224002)
Li Lanying
(Jiangsu Yancheng College of Industry Dept.of Building Engineer, Yancheng 224002)
Abstract:The balancing condition of plane joint-force system is that force polygon must be closed.The graphic solution and AUTO CAD tool of computer can be applied to obtain two forces on a nodepoint fast and accurately,then internal force of truss can be obtained.This computation method of internal force has its superiority,especially for a complicated truss.
Keywords:AUTO CAD, graphic solution, internal force of truss
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只看楼主 我来说两句作者单位:刘跃华(江苏盐城市建筑设计研究院,盐城 224002)
李兰英(江苏盐城工学院建工系,盐城 224002)
参考文献
1 杨茀康等主编.结构力学.北京:高等教育出版社,1983
2 赵长利等主编.CAD五周通.西安:陕西电子杂志社出版,1995
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