摘要
扣索索力和预抬量是大跨度拱桥的拱圈拼装过程中的难点和核心问题。针对这一问题,提出了连续体弹性 刚性支承法,使用该方法可以方便有效地确定"扣挂"索力和拱圈标高预抬量,使本节段索的索力可以一次性张拉到位,且进一步给出了相关工程算例。
The elastic-rigidity supporting method is presented for determination of the buckling cable force and precamber, which is the difficult point as well as the key problem in assembling a long-span arch bridge. The method is able determine the buckling cable force and precamber simultaneously, and the cable force of this segment needs to be tensioned only once. Numerical results are given as well.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2004年第3期81-87,共7页
Journal of the China Railway Society
关键词
大跨度拱桥
扣索索力
预抬量
弹性-刚性支承法
一次张拉法
long-span arch bridge
buckling cable force
precamber
elastic-rigidity supporting method
once-tension method
