论文部分内容阅读
经过多座桥梁的加固工程实践,提出了拱桥加固的新方法。该方法是从拱背以上加固改造拱桥,主要加强拱顶和拱脚两控制截面,同时加强桥面铺装。实践证明,该方法具有如下明显优点:加固效果好、费用省、施工方便。结合福建沙县东门大桥主桥的加固改造,阐述了该方法的具体加固思路和加固措施;强调了运用该方法在加固跨径较大的拱桥时,应注意的一些特殊的计算方法及施工工序。
After several bridges strengthening project practice, put forward a new method of arch bridge reinforcement. The method is to reinforce the arch bridge from above the arch back to mainly strengthen the two control sections of the vault and the arch foot, and at the same time, strengthen the deck pavement. Practice has proved that the method has the following obvious advantages: good reinforcement, cost savings, construction convenience. Combined with the reinforcement and reconstruction of the main bridge of Shamen Dongmen Bridge in Fujian Province, the concrete reinforcement measures and reinforcement measures of this method are expounded. Some special calculation methods and construction procedures that should be noticed when using this method to reinforce the arch bridge with large span are emphasized .