钢管立柱贝雷梁组合支架法在桥梁施工中的应用  

Steel Pipe Column Bailey Beam and Support Combined in Bridge Construction

作　　者：邓妍 DENG Yan(The Fourth Engineering Co.,LTD.,China Railway 18th Bureau Group,Tianjin 300354,China)

机构地区：[1]中铁十八局集团第四工程有限公司,天津300354

出　　处：《南通职业大学学报》2024年第1期100-104,共5页Journal of Nantong Vocational University

摘　　要：以实际工程为例,探讨钢管立柱贝雷梁与满堂支架组合法在大跨度桥梁施工中的应用:设计支架搭建方案,验算支架体系的稳定性;分析施工中的关键节点,并对施工效果进行实时监测。经验证,组合支架展现出稳定的支撑性能,稳定性指标满足预定要求;支架体系各测点的沉降量为2.042~4.873 mm,最大沉降量未超过5 mm;各构件及节点的偏差控制在(±1~±5)mm内,符合工程验收标准。综合应用结果表明,钢管立柱贝雷梁组合支架法在大跨度桥梁施工中应用效果达到预期,可为类似工程施工提供参考。Taking Shengli River Bridge as a case in point,the application of steel pipe column Bailey beam and full-hall support in the construction of long-span bridges is discussed.A support building scheme is developed,and the stability of support system is calculated.The key nodes in the construction are analyzed while the construction is put under real-time monitoring.The practical results show that the combined support system has a good stability which falls within the expectation,and the settlement of each point measured in the support system is 2.042~4.873 mm with the maximum settlement no more than 5 mm.The deviation of each component and node is controlled within±1~±5 mm.The application proves to be effective and valuable in practice.

关 键 词：桥梁施工 钢管立柱贝雷梁 满堂支架 联合支撑 

分 类 号：U445.46[建筑科学—桥梁与隧道工程]