振动测试技术在公路桥梁耐久性评估中的应用  

Application of Vibration Testing Technology in Durability Evaluation of Highway Bridges

作　　者：沙金 Sha Jin

机构地区：[1]江苏腾达工程检测有限公司,江苏淮安223300

出　　处：《时代汽车》2025年第4期157-159,共3页Auto Time

摘　　要：耐久性评估是判定公路桥梁剩余耐久年限是否满足预期使用年限需求的重要手段,对于防止耐久性病害进一步恶化,保障公路桥梁安全性和使用年限具有现实意义。本文清醒地认识到我国公路桥梁养护需求巨大的客观事实,通过回溯公路桥梁耐久性评估的历史演进,明确振动测试技术优势,并分析公路桥梁环境振动测试技术、余震测试技术、冲击振动测试技术的优劣势,提出振动测试技术在公路桥梁耐久性评估中应用的方法,分别是构建公路桥梁耐久性评估体系、合理选用和安装传感器、灵活控制测试时机与时长,从而为公路桥梁维护和预防性养护提供参考。Durability assessment is an important means to determine whether the remaining service life of highway bridges meets the expected service life requirements,which is of practical significance for preventing further deterioration of durability diseases and ensuring the safety and service life of highway bridges.This paper clearly recognizes the objective fact that there is a huge demand for maintenance of highway bridges in China,clarifies the advantages of vibration testing technology by tracing the historical evolution of highway bridge durability assessment,analyzes the advantages and disadvantages of environmental vibration testing technology,aftershock testing technology and shock vibration testing technology of highway bridges,and proposes the application methods of vibration testing technology in the durability assessment of highway bridges,which are to construct a durability evaluation system for highway bridges,reasonably select and install sensors,and flexibly control the timing and duration of testing,so as to provide a reference for highway bridge maintenance and preventive maintenance.

关 键 词：振动测试技术 公路桥梁 耐久性评估 

分 类 号：U44[建筑科学—桥梁与隧道工程]