随着我国和运输事业的快速,过去年代修建于各地城镇和各级公路上的桥梁,负担着十分沉重的交通荷载及繁重的交通量。由于种种原因,以致在设计上或多或少存在考虑不周的缺点,施工也留下大小不同的缺陷。根据近年对超限运输桥梁及大中型桥梁的加固实践,介绍公路旧桥各组成部分的加固。 With the rapid development of our country and transportation, the bridges built in cities and towns and roads at various levels in the past have burdened a heavy traffic load and heavy traffic volume. Due to various reasons, so that the design is more or less ill-considered shortcomings, the construction also left the size of different defects. According to the reinforcement of overloaded transport bridges and large and medium-sized bridges in recent years, the reinforcement of the components of the old road bridges is introduced.