摘要
根据某历史文物桥梁结构病害现状与加固要求,采用体内隐形锚杆加固技术对其进行修缮。对于主拱圈纵向裂缝,采用横向水平锚杆进行加固。对于主拱圈两侧距跨中1/2处的横向裂缝,采用斜向锚杆进行加固。对于挡墙竖向裂缝,采用竖向锚杆进行加固。对加固前后桥梁受力与变形性能进行分析,结果表明,加固后桥梁竖向位移明显减小,最大主应力有效传至基岩,满足承载及加固要求。
According to the structural diseases and reinforcement requirements of the historical heritage bridge, the concealed anchor rod reinforcement technology is used to repair and reinforce it. For the longitudinal cracks of the main arch, horizontal anchor rods are used for reinforcement. For the transverse cracks on both sides of the main arch 1/2 from the middle of the span, diagonal anchor rods are used for reinforcement. For vertical cracks in the retaining wall, vertical anchor rods are used for reinforcement. The analysis results of the stress and deformation performance of the bridge before and after the reinforcement show that the vertical displacement of the bridge is significantly reduced after the reinforcement, and the maximum principal stress is effectively transmitted to the bedrock, which can meet the requirements of bearing and reinforcement.
作者
汪方勇
吴真
WANG Fangyong;WU Zhen(Jiangsu Zhujiu Building Conservation&Technology Co.,Ltd.,Nanjing,Jiangsu 210019,China)
出处
《施工技术（中英文）》
CAS
2021年第21期4-7,共4页
Construction Technology
关键词
文物建筑
砌体结构
拱桥
隐形锚杆
加固
heritage buildings
masonry structures
arch bridges
concealed anchor rods
reinforcement
