摘要
以主跨为220m的台湾某独塔斜拉桥为背景,对该分离式双箱梁异形桥塔斜拉桥全桥气动弹性模型设计、制作、模态调试及风洞试验进行详细论述。介绍了斜拉索、主梁、横梁及斜拉索吊臂、桥塔的设计和制作方法,根据模态测试结果可知,该桥全桥气弹模型设计和制作能很好地满足试验要求,可为同类型桥梁全桥气弹模型设计提供参考和借鉴。对该桥进行了均匀流场涡激共振、颤振及紊流场涡激共振、抖振风洞试验,结果表明该桥具有较好的抗风稳定性。
The design,fabrication,modal test and wind tunnel test for a single pylon cable-stayed bridge in Taiwan( main span 220 m) were elaborated. The design and manufacture technique of structural components such as cable stays,girder,beam and cable-stayed rigid arms,pylons were expounded. The modal testing results showed that the design and manufacture of the bridge meet the test requirements well,and it could be adopted as a reference for model design of other similar bridges. Vortex-induced vibration( VIV) and flutter in uniform field,VIV and buffeting vibration in turbulence field were studied by wind tunnel test. The results approached that the bridge has good aerodynamic stability.
作者
曾冬雷
张明杰
许福友
ZENG Dong-lei;ZHANG Ming-jie;XU Fu-you(Faculty of Infrastructure Engineering,Dalian University of Technology,Dalian 116024,China)
出处
《北方交通》
2018年第7期7-11,16,共6页
Northern Communications
关键词
大跨度斜拉桥
气弹模型
设计与制作
模态调试
风洞试验
Long-span cable-stayed bridge
Aeroelastic model
Design and manufacture
Modal test
Wind tunnel test