吊拉组合体系桥的抗风稳定性分析  

Wind-Resistant Stability Analysis of Cable-Stayed-Suspension Hybrid Bridges

作　　者：张新军[1] 张丹[1] 

机构地区：[1]浙江工业大学建筑工程学院,杭州市310014

出　　处：《公路》2007年第10期5-8,共4页Highway

摘　　要：吊拉组合体系桥是由悬索桥和斜拉桥发展而来的一种新型缆索支承桥梁,它综合和克服了两种体系的优点和缺点,具有较强的跨越能力。以1400 m主跨的吊拉组合体系桥、悬索桥和斜拉桥设计方案为例,采用三维非线性抗风分析方法,进行了空气静力和动力稳定性的分析和比较,并从抗风稳定性角度探讨了吊拉组合体系桥在超大跨径桥梁中应用的可能性。The cable-stayed-suspension hybrid bridge is a new cable-supported bridge developed from the cable-stayed bridge and suspension bridge, and takes some advantages and also overcomes some deficiencies of both the two bridge systems, and therefore becomes strong in spanning. By taking the cable-stayed-suspension hybrid bridge, suspension bridge and cable-stayed bridge with main span of 1 400 m as examples, the aerostatic and aerodynamic stability is investigated by 3D nonlinear windresistant analysis, and the applicability of the cable-stayed-suspension hybrid bridge in super-long span bridges is also discussed based on the wind-resistant stability.

关 键 词：吊拉组合体系桥 悬索桥 斜拉桥 抗风稳定性 

分 类 号：U442.59[建筑科学—桥梁与隧道工程]