DISCUSSION OF POT BEARING FOR CONCRETE BRIDGE

摘要

Road engineering consists of three major structures, road embankments, bridges, and tunnels. In consideration of the cost of land acquisition in urban areas, the trend of road engineering migrating to hilly or mountain areas has been developed. Under such topographic restrictions, enormous bridge constructions would certainly be the consequence. After the National Freeway No.3 brought in innovative bridge construction methods, bridge bearings have almost entirely taken place by pot bearing. Pot bearing has many advantages: the extremely long service year (anything else?). In addition to the correct installation, the routine inspections and maintenance of pot bearings in the service time are necessary for them to fully function. Current domestic research mainly concentrates on rubber bearings and has only few discussions and analyses on pot bearings. By collecting the real cases, this article discussing and analyzing the types of damage and their causes in the phases of designing and manufacturing through installation and maintenance provides relevant people a reference of the approaches for prevention and improvement.