摘要
在荷载作用下,多塔斜拉桥的中间塔由于没有边锚索固定,中间塔塔顶水平位移加大,导致整个结构变位过大,结构刚度成为设计关键。主要讨论结构布置对多塔斜拉桥力学行为的影响。
Because the intermediate pylons of multispan cable-stayed bridges have no backstays connecting them to the fixed points, under the action of external loads, the tops of the pylons will produce much horizontal displacement, and will result in considerable deformation in the overall structure. Therefore, to obtain the adequate structural stiffness becomes critical in the design. In this paper, the effect of structural arrangement on the mechanical behavior of the multispan cable-stayed bridges is mainly described and discussed.
出处
《桥梁建设》
EI
CSCD
北大核心
2004年第2期1-4,共4页
Bridge Construction
关键词
斜拉桥
结构布置
刚度
位移
内力
cable-stayed bridge
structural arrangement
stiffness
displacement
internal force
