某大跨度斜拉桥施工阶段的抖振控制措施研究

Buffeting·RestrainingMeasuresforLongSPan Cable·StayedBridgesunderConstruction

摘要: 介绍了桥梁结构抖振响应计算原理，并以某斜拉桥最大双悬臂态为工程实例计算了结构的抖振响应，然后分别对增设抗风临时拉索和利用塔旁托架两种减振措施进行了分析。结果表明，对于大跨斜拉桥的施工阶段，增设抗风临时拉索和利用塔旁托架是两种具有实际工程意义的抖振控制措施。
- 斜拉桥 /
- 施工 /
- 振动 /
- 抖振 /
- 控制
Abstract: Thetheo叮ofealeulatingthebuffetingresponseofbridges15introdueed，andthebuffeting resPonseOfaeable一st叮edbridgeatmaximumtwineantileversstageduringereetion15ealeulated.Two buffeting一restrainingmeasures，settingtempora叮eablesandapplyingbraeketbesidetower，are analyzed.Theresultsshowthatthesetwomeasuresareeffieientandpraetieableforlongspaneable- stayedbridgesundereonstruetion.
- eable一stayedbridges /
- eonstmetion:vibration /
- buffeting /
- eontrol /

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