在我国交通事业日新月异的不断发展中,交通量的快速增长,通行车辆荷载也逐渐加大,桥梁的正常使用寿命越来越短,在此情形之下大批桥梁需要进行加固,所以有必要对现有桥梁的加固问题进行研究和探讨。本文介绍了几种桥梁加固的方法,对有效合理地解决混凝土桥梁的使用具有一定的意义。 In the ever-changing and continuous development of China’s transportation industry, the rapid growth of traffic and the increasing traffic load of vehicles mean that the normal service life of bridges is getting shorter and shorter. Under this circumstance, a large number of bridges need to be reinforced. Therefore, There are bridge reinforcement issues for research and discussion. This article introduces several methods of bridge reinforcement, which is of certain significance to effectively and reasonably solve the use of concrete bridges.