随着国民经济的快速发展,公路交通量的猛增和重车、超重车的增多,致使江苏省相当一部分公路干线上的桥梁,特别是建国初期和六十年代修建的标准偏低的桥梁,不能满足车辆通行的需求。在既要节省资金,又要保证正常通行的前提下,对旧桥进行加固就成了必然的选择。江苏省早在1990年就开展了“旧桥技术改造”的研究工作,并通过了交通 With the rapid development of the national economy, the surge in road traffic and the increase in the number of heavy vehicles and super-heavy vehicles have led to a considerable part of the bridges on the highways in Jiangsu Province, especially the low-standard bridges built in the early and early 1960s, Can not meet the needs of traffic. Under the premise of saving funds and ensuring normal traffic, the reinforcement of the old bridge has become an inevitable choice. As early as 1990, Jiangsu Province carried out research on the “Old Bridge Technology Reform” and passed the traffic