南京长江二桥独柱墩桥梁抗倾覆分析与加固研究  

Anti-Overturning Stability Analysis and Reinforcement of Single-Pier Bridge of the Second Nanjing Yangtze River Bridge

作　　者：陈辉 CHEN Hui(The Second Nanjing Yangtze River Bridge Co.Ltd.,Nanjing 210038,China)

机构地区：[1]南京长江第二大桥有限责任公司,南京210038

出　　处：《工程建设与设计》2023年第4期74-77,共4页Construction & Design for Engineering

摘　　要：结合南京长江二桥柳塘互通F匝道桥独柱墩桥梁抗倾覆加固改造项目,针对原结构桥梁抗倾覆性能不足的问题,提出了采用墩顶增设钢抱箍及可调高支座的加固方案。分析结果表明,加固改造后桥梁抗倾覆性能大幅提高,主要受力构件(桥墩)受力满足要求。工后检测结果表明,桥梁结构各构件运行良好、无次生病害产生。加固方案实施后桥梁的外观效果良好,加固有效可行。Combined with the anti-overturning reinforcement project of Liutang Interchange F Ramp Bridge of the Second Nanjing Yangtze River Bridge,this paper proposes a reinforcement scheme for adding steel hoops and height adjustable bearings to the pier top in view of the insufficient overturning performance of the original structure bridge.The analysis results show that the overturning resistance of the bridge after reinforcement and reconstruction is greatly improved,and the major components(piers)meet the requirements.The post-construction inspection results show that the components of the bridge structure are in good operation and there are no secondary diseases.After the implementation of the reinforcement scheme,the appearance effect of the bridge is good,and the reinforcement is effective and feasible.

关 键 词：连续箱梁 独柱墩 抗倾覆稳定系数 加固改造 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]