摘要
利用拉索变形与应变的关系,建立了初应变增量调整方程.采用迭代方法,求得满足要求的斜拉桥拉索应力.经工程算例验证,此调索方法收敛速度快.其等效于位移调零法或最小主梁弯矩应变能法,适用于有限元调索计算.
The initial strain increment equations is formulated thagh displacement-strain relationship of cables. The applicable cable foroes can be calculated by iteraive method. An example is presented to il-lustrate the process and efficiency of the method. The method is equivalent to zero displacement or mini-mum strain energy of main girder and is easy to be applied in FEA software.
出处
《深圳大学学报(理工版)》
CAS
2000年第1期75-79,共5页
Journal of Shenzhen University(Science and Engineering)
关键词
斜拉桥
索力调整
有限元
计算
cable-stayed bridge
cable force adjustment
finite element analysis