调查近年来梁 (板 )桥常见伸缩缝的损坏特征 ,分析病害成因 ,并结合实例提出适应常见几种伸缩装置系统的有效修补措施 In the recent years, the damage characteristics of common expansion joint of Liangqiao Bridge were investigated and the causes of disease were analyzed. Combining with the examples, some effective repair measures to adapt to several common telescopic equipment systems were proposed