摘要
结合示例介绍了用动态坐标法直接计算薄壁构件的空间变形,并将其用到弯心不共线的薄壁梁的计算分析中,给出了相应的单元柔度矩阵和力法求解过程。从而突破了弯心不共线薄壁杆件体系计算困难的问题,显示了这种计算方法的优越性。
In this paper, the calculation of the space deformation of thin-walled element by 'dynamic coordinate method' is explained in detail through an example. The thin-walled element with different shear-centers on one section is analyzed and calculated by this method as well, then, the element flexibility matrix is presented. Some difficulties in calculation of thin-walled structures with 'plane bending theory' and 'constrict twist theory' are overcome, showing the advantages of this method.
出处
《重庆建筑大学学报》
CSCD
2004年第4期18-24,共7页
Journal of Chongqing Jianzhu University
关键词
薄壁构件
弯心不共线
动态坐标法
单元柔度矩阵
thin-walled element
non-superposition shear center
dynamic coordinate method
element flexibility matrix
