连续梁桥墩顶裂缝成因分析与加固方法研究  

Analysis of Causes of Cracks on Pier Top of Continuous Beam Bridges and Research on Reinforcement Methods

作　　者：李立斌 毛泽亮 吕昭旭 LI Libin;MAO Zeliang;LV Zhaoxu(Jiangsu Ninghang Expressway Co.,Ltd.,Nanjing 211299,China;Jiangsu Xiandai Road and Bridge Co.,Ltd.,Nanjing 210049,China)

机构地区：[1]江苏宁杭高速公路有限公司,南京211299 [2]江苏现代路桥有限责任公司,南京210049

出　　处：《现代交通技术》2024年第3期36-39,共4页Modern Transportation Technology

摘　　要：基于公路连续梁桥墩加固工程,通过有限元计算,分析桥墩裂缝的成因,并比选不同加固方案,确定粘贴碳布法的加固方案。结果表明:粘贴碳布法可以改善连续梁桥墩顶的受力状况,限制裂缝发展,加固效果显著。同时,总结碳布加固桥墩的施工工艺,供同类工程参考。Based on the reinforcement project of highway continuous beam pier,the research analyzes the causes of pier cracks through finite element calculation.It also compares and selects different reinforcement plans,and ultimately determines the reinforcement plan for pasting carbon cloth.The results indicate that the carbon fiber sheet reinforcement method can improve the stress state of the pier top of continuous beam bridges,limit the further development of cracks,and achieve significant reinforcement effects.Meanwhile,a summary of the construction process of using carbon cloth to reinforce bridge piers is provided for reference in similar projects.

关 键 词：连续梁 桥墩 碳纤维 加固 施工工艺 

分 类 号：U443.22[建筑科学—桥梁与隧道工程]