【作者】 李飞； 肖丹； 任伟新；

【Author】 Li Fei~1 Xiao Dan~2 Ren Wei-xin~1 (1.School of Civil Engineering and Arch Technology,Central South University,Hunan,Changsha,410075;2.College of Civil Engineering,Fuzhou University,Fujian,Fuzhou,350002)

【机构】 中南大学土木建筑学院； 福州大学土木工程学院；

【摘要】 基于传统动应变测量的桥梁疲劳健康监测与寿命估算,无法自动记录疲劳累积过程,有其本质的不足。具有电阻自动累积功能的疲劳寿命计,能有效地解决这一难题。本文通过分析桥梁结构及其疲劳健康监测的特点及要求,提出了新型桥梁疲劳寿命计的设计思路。同时,通过成分设计,结合特殊的轧制、热处理工艺,成功制作出基于 Cu-Ni 合金的成品精密合金箔材,为新型桥梁疲劳寿命计的研制铺平了道路。更多还原

【Abstract】 Fatigue damage is one of the most important sources to cause the failure of engineering structures,and the traditional sensors used in the bridge health monitoring system are not good for the fatigue accumulative damage monitoring,because these sensors normally do not have the capacity to automatically storage the fatigue accumulation that is the key feature in the fatigue life monitoring of bridges.So,a fatigue life gauge that can storage and accumulate the changes of the resistance automatically is therefore essential in developing a real-time bridge health monitoring system.In this paper,we discussed the composition design of precision alloy foil used in the new bridge fatigue life gauge,resolved the key technology of processing the new bridge.fatigue life gauge.更多还原