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清远北江大桥(旧桥)是在原旧国道107线上,全长1056.77m,主桥为8孔70m刚架拱,四孔一联,全国跨径最大的刚架拱桥,于1985年底竣工通车,维修加固于2008年2月8日完工,通车运营一年后,沥青混凝土桥面的表面没有发现裂纹、车辙等现象,采用GAC型沥青混凝土铺装层进行维修加固的应用是可取的,这一施工方案适合广东气候特点和交通条件,本文介绍该方案以供同行交流参考。
Qingyuan Beijiang Bridge (Old Bridge) is a 107-lane old national highway with a total length of 1056.77m. The main bridge is an 8-hole, 70m-rigid frame arch with four holes and the largest cross-country rigid frame arch bridge. It was completed and opened to traffic at the end of 1985, Maintenance and reinforcement in February 8, 2008 completed, opened to traffic one year after the bridge, the surface of the asphalt concrete bridge found no cracks, ruts and other phenomena, the use of GAC asphalt concrete pavement maintenance and reinforcement applications is desirable, this Construction program for the climate characteristics of Guangdong and traffic conditions, this article describes the program for peer exchange reference.