【摘要】 交通量逐年成倍增长以及车辆载重量越来越大 ,使我国现有公路、城市道路上的桥梁有相当一部分已不堪重负 ,需要采取必要措施进行加固改建 ,以提高技术等级和通行能力。结合北京市公路二环马驹桥立交桥改建的工程实践 ,简要介绍有关新技术新材料在桥梁改建和抗震加固方面的应用。更多还原

【Abstract】 As the traffic and truck loadings increase year by year, quite a lot of the bridges on highways and municipal streets are over loaded and in need of strengthening or rehabilitation. In connection with the practice of rehabilitation of Maju elevated bridge on the 2nd loop way in Beijing, the application of the relevant new technics and new materials in reforming and seismic strengthening of the existing bridges are briefly introduced.更多还原