摘要
提出了一个适合施工过程控制计算的索单元.该单元能考虑斜拉索在梁上锚固点的偏心.推导了单刚计算公式和索张拉等效结点荷载的计算公式,介绍了斜拉桥施工控制中的几个特殊问题及处理技巧.通过实桥监控数据验证了该方法的适用性和可靠性.
A cable finite element is proposed in this paper. The element is very suitable for the calculation of construction control in long-span cable-stayed bridges and can easily deal with the eccentricity of anchored joints. The element stiffness matrix and the equivalent nodal-load vector for tensioning the cable element are derived. Several special problems and imitating skills for a cable-stayed bridge in process of the con- struction control are described. The reliability and wide applicability of proposed method are verified by experimental results of a real bridge.
出处
《兰州交通大学学报》
CAS
2009年第3期1-4,共4页
Journal of Lanzhou Jiaotong University
关键词
斜拉桥
施工监控
索单元
cable-stayed bridge
construction control
cable element
