摘要
运用现代有限元方法分析了三县洲斜拉桥主梁锚固区的局部应力分布及索力传递规律．分析结果表明，索力引起主梁顶板内局部较大的横桥向拉应力，与锚块固结的横隔板和箱梁腹板则传递和承受了大部分的索力垂直分量．
The anchorage zone in concrete box girder is one of the key structural components of cable-stayed bridge. The stay cables of Sanxianzhou bridge are longitudinally inclined in single plane, but laterally each cable composes of twin cables spacing 1.2 meters. The twin-cables are anchored in a concrete brick set in the middle box. The local stress distribution of anchorage zones and the transfer of cable forces are analysed by modern finite element method .The result shows that huge cable forces cause big transverse tensile stress in the deck, and the vertical components of cable forces are transferred by the webs and the cross slab fixed with the anchor brick.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
1999年第1期65-69,共5页
Journal of Fuzhou University(Natural Science Edition)
关键词
斜拉桥
主梁锚固区
应力分析
索力传递规律
cable stayed bridge
anchorage zone
stress analysis
Min river
Fuzhou
