| 长联多跨悬浇连续宽箱梁施工监控技术研究 |
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| 引用本文： | 马坤全,李保俊,严申华. 长联多跨悬浇连续宽箱梁施工监控技术研究[J]. 结构工程师, 2011, 27(3): 154-158 |
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| 作者姓名： | 马坤全 李保俊 严申华 |
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| 作者单位： | 1. 同济大学桥梁系,上海,200092
2. 杭州铁路枢纽建设有限公司,杭州,310020 |
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| 摘 要： | 长联多跨连续宽箱梁桥,由于跨数多,全桥施工需经过多次合龙。因此,在此类桥型在施工过程中,严格控制主梁线形(包括横向线形)则显得更为困难和重要。以某一联十八跨四线悬浇连续大断面箱梁桥为例,论述了长联多跨连续梁桥施工监控技术,阐述了挂篮变形合理取值及悬浇节段立模标高的确定原则,采用MIDAS CIVIL6.7.1软件建立有限元模型,模拟计算该桥施工全过程,并根据现场实测值不断修正计算参数,得到各节段施工预拱度,提供合理的悬浇立模标高,以确保成桥线形及内力与设计相符。
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| 关 键 词： | 客运专线 长联多跨悬浇连续梁 四线单箱梁 施工监控 理想线形 |
Construction Monitoring Study on Long Multi-Span Cantilever Casting Box Girder Bridges with Wide Section |
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| MA Kunquang,LI Baojun,YAN Shenhua. Construction Monitoring Study on Long Multi-Span Cantilever Casting Box Girder Bridges with Wide Section[J]. Structural Engineers, 2011, 27(3): 154-158 |
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| Authors: | MA Kunquang LI Baojun YAN Shenhua |
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| Affiliation: | MA Kunquang1 LI Baojun1 YAN Shenhua2 1.Department of Bridge Engineering,Tongji University,Shanghai 200092,China,2.Hang Zhou Railway Construction Ltd.Company,Hang Zhou 310020,China) |
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| Abstract: | Due to the multi spans,it needs several times of closures to complete the whole construction for long multi-span box girder bridges with wide section.So,for this kind of bridge,strictly controlling the alignment of the beam(including the transversal alignment)is more difficult and also more important.Based on a 18-spans single box continuous bridge with wide section on Passenger Dedicated Line,construction monitoring technology for multi spans and high speed railway continuous beam bridges was discussed in ... |
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| Keywords: | Passenger Dedicated Line multi-span cantilever constructed continuous beam bridge 4-lines single box girder construction monitoring technology ideal alignment |
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