高层建筑、空间结构、大型桥梁、大型交通枢纽、大坝、长道隧道都是大型结构,这些大型结构的安全性、可靠性与我们每个人密切相关。由于自然灾害、人为因素或者是结构本身的性能问题导致突发事件屡有发生,一旦某个结构损毁会造成生命财产的损失。因此,大型结构的健康状态也成为各个领域关注的重点。交通运输是国民经济的基础产业,是经济发展的大动脉,在当今的经济社会发展过程中起着至关重要的作用。当前,从国家提出的发 High-rise buildings, space structures, large bridges, large transport hubs, dams and long tunnels are all large structures whose safety and reliability are closely related to each of us. Due to natural disasters, human factors or the performance of the structure itself led to emergencies occur frequently, once a structure is damaged will result in the loss of life and property. Therefore, the health status of large structures has also become the focus of attention in various fields. Transportation is the basic industry of the national economy and the main artery of economic development. It plays a vital role in today’s economic and social development. At present, the hair made from the country