大跨度斜拉桥风振响应及控制研究进展

现代斜拉桥以其良好的结构性能和跨越能力以及优美的外型在现代桥梁结构中占据着重要地位,本文首先介绍了大跨度斜拉桥主梁风振响应研究的现状及发展,对各种风振分析方法进行了评述。拉索是斜拉桥的重要承力部件;由于拉索质量轻,柔度大,阻尼小,在风的激励下,会发生强烈的振动,对此,结构工程师采取了各种措施来控制拉索的风致振动。就目前国内外索承重大跨桥梁拉索的振动控制装置种类进行介绍,并展望未来拉索振动的控制装置。

Process in the Research for Response and Control of Wind-induced Vibration of Long Span Cable-stayed Bridge

Modern cable-stayed bridge is play a very important role in modem bridge structures by its good structural performance, capability of span and graceful appearance. This paper introduced the process in the research for response of wind-induced vibration of long span stay-cable bridge,and reviewed various analysical methods of wind-induced vibration. Cable is most important component of cable-stayed bridge. Due to the property of cable, it will be vilent vibration by the wind. Engineers adopted a lot of method to control wind-induced vibration of cable. This article introduced all kinds of control installation of long-span stayed cable bridge.