摘要
阐述玻璃幕墙杆索结构的有限分析计算方法。首先将结构简化为受多点荷载作用的变截面梁,建立其变形后弯曲与轴向位移的耦合微分方程,接着将变截面梁分成任意小单元,在小单元段将方程解耦,利用边界条件和连接条件,建立传递矩阵将局部解析解化为全局数值解,并进行稳定性计算,最后根据工程实例设计实验,结果表明该方法是精确有效的。
A finite analysis calculation method of the glass curtain wall strut-cable structure is presented. The structure is simplified to a beam with variable thickness under the concentrated loads. Then the coupling differential equations of bend and axial displacement are established. The beam is divided into a series of discretional units on which the coupling in equations can be separated. With the confined conditions and the connected conditions, the transfer matrix is formed to transfer the local analytical solution to the whole numerical solution. The stability calculations are carried out. Finally, a experiment is designed based on an engineering example, its results show that the finite analysis method is precise and valid for strut-cable structure.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第6期32-35,40,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
广东省自然科学基金资助项目(980343)
中山大学青年教师科研启动基金资助项目(39000-1131011)
广东省中山市科技资助项目(2005A138)
关键词
杆索结构
有限分析法
传递矩阵
实验
strut-cable structure
finite analysis method
transfer matrix
experiment
