摘要
本文建立了斜拉桥索力调整的非线性规划模型,其中以斜拉桥梁和索塔的拉压及弯曲应变能为目标函数,以结构的位移、弯矩及索力为约束,采用梯度投影法进行求解用以确定成桥合理状态的索力。
In this paper, a model for nonlinear optimization programming to adjust the prestresses of cables in the cable-stayed bridge is established, in which the strain energy of the tension and bending of the beams of the bridge and the cable tower is the objective function, and displacement of node or the bending moment of sections or the cable force is the constraint condition. In order to determine the prestresses of the cables of the bridge, the method of gradient projection is used to solve the program.
出处
《上海力学》
CSCD
1999年第1期49-55,共7页
Chinese Quarterly Mechanics
