某桥梁病害检测与加固设计  

Disease Detection and Reinforcement Design of a Certain Bridge

作　　者：祝红丹 王永伟 刘成才 ZHU Hongdan;WANG Yongwei;LIU Chengcai(School of Civil Engineering,Zhengzhou University of Technology,Zhengzhou,Henan 450044,China)

机构地区：[1]郑州工程技术学院土木工程学院,河南郑州450044

出　　处：《中州大学学报》2025年第1期119-122,共4页Journal of Zhongzhou University

基　　金：河南省高等学校大学生创新训练计划项目(202411068007)。

摘　　要：通过对某公路大桥病害原因的调查与分析,结合实际工程,对原有结构采用5种不同的假设损伤情况进行分析,以全面评估其承载能力。在分析完结构的受力状况后,制定出有针对性的加固设计方案,并对加固后的结构进行综合分析和验算,对比加固前后结构的抗弯承载力、抗剪承载力、应力、挠度,确认其加固效果。研究结果表明,加固后主梁应力状况和挠度得到了较大改善,结构刚度有所提高,跨中裂缝的发展得到了有效抑制,该研究为类似工程设计提供了参考。Five analyses of assumed damages and verification were carried out on the original structure through investigation and analysis of the causes of the disease of a certain highway bridge,combined with actual engineering.After comprehensively understanding the stress status of the structure,a targeted reinforcement design plan was formulated,and a comprehensive analysis and verification of the reinforced structure were carried out.The bending bearing capacity,shear bearing capacity,stress,deflection of the structure before and after reinforcement were compared to confirm the reinforcement effect.The results showed that the stress and deflection of the main beam were greatly improved after reinforcement,and the structural stiffness was improved,effectively suppressing the further development of mid span cracks and providing reference for similar engineering designs.

关 键 词：病害 检测 加固 设计 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]