摘要
G312合六叶公路桥属于大跨径连续钢箱梁桥,其主跨跨径达到180m。为提高合六叶公路桥在服役期间的安全性与抗风致振动的稳定性,基于有限元模型与风振稳定性验算,对其风振特性进行研究,并提出采用TMD减震器以提高桥梁的风振稳定性。
G312 Heliuye highway bridge is a long-span continuous steel box girder bridge with a main span of 180m.In order to improve the safety and stability against wind-induced vibration of Heliuye highway bridge during service,its wind-induced vibration characteristics are studied based on the finite element model and the checking calculation of the wind-induced vibration stability,and TMD shock absorber is proposed to improve the wind-induced vibration stability of the bridge.
作者
罗祎
杜江波
Luo Yi;Du Jiangbo(China Railway Major Bridge Reconnaissance&Design Institute Group Co.,Ltd.,Wuhan 430000,China;Huanan Construction Company of China Railway NO.5 Engineering Group Co.,Ltd.,Dongguan 523000,China)
出处
《北方交通》
2022年第5期6-8,14,共4页
Northern Communications
关键词
大跨径连续钢箱梁桥
风振特性
涡激共振
风致振动
TMD减震器
风振稳定性
Long-span continuous girder bridge
Wind-induced vibration characteristics
Vortex-induced resonance
Wind-induced vibration
TMD shock absorber
Wind-induced vibration stability
