摘要
混凝土作为最基本的建筑材料,在土木工程中的地位是举足轻重的.然而随着建筑结构的老化和自然灾害的作用,大多数建筑结构内部或多或少都有损伤,而这种损伤一般需要借助仪器才能被发现,因而使得人们无法及时对损伤部位做出响应.本文基于压电波动法,使用两个压电智能骨料来检测混凝土的健康状况,通过对比健康状态和损伤状态下信号的变化,并基于小波包分析的方法来得到小波包能量指数与混凝土健康状况之间的关系.
As the basic engineering material, concrete is crucial in civil engineering. However, most of the building structures have internal damage with the aging of structures and the role of natural disasters, and the damage usually needs to be detected by instruments, which makes it difficult for people to respond in time. In this paper, two piezoelectric smart aggregates are used to detect the health status of the concrete based on the piezoelectric wave method. The relationship between the wavelet packet energy index of and the health status of concrete is obtained by comparing the varieties of signals.
作者
肖家浩
饶玉龙
李勇
XIAO Jiahao;RAO Yulong;LI Yong(School of Urban Construction, Yangtze University,Jingzhou 434023 ,China;China Light Industy Wuhan Design and Engineering Co. Ltd,Wuhan 430060,China)
出处
《四川建材》
2019年第9期32-33,68,共3页
Sichuan Building Materials
基金
国家自然科学基金项目(51778065)
关键词
混凝土
损伤
智能骨料
小波包分析
concrete
damage
smart aggregate
wavelet packet analysis
