根据1976年河北唐山地震震害的教训,各地震区都相继对公路桥梁开展了抗震加固工作。目前各地加固工作的着眼点,主要是对桥梁抗震最薄弱的部位(例如梁式桥的支座、双曲拱桥的拱脚连接与拱肋之间的横向连接等皆是),针对不同的具体情况,采取不同的加固措施,以防落梁(拱)的震害。 According to the lesson of earthquake damage in 1976 in Tangshan, Hebei Province, earthquake relief work has been carried out on all roads and bridges in all earthquake areas. At present, the focus of reinforcement works around the world is mainly for the weakest parts of the bridge (such as the support of beam bridge, the connection between arch and foot of arch bridge and the horizontal connection between arch ribs, etc.). According to different situations, Take different reinforcement measures to prevent falling beams (arch) of the earthquake damage.