Management Methods In Bridge Maintenance Regulations

According to the investigation of bridge current situation, the paper analyzes and evaluates the technology condition of artery bridge: type of construction can be classified two categories, beam-slap bridge and arch bridge; the adaptable ratio of bridge with highway is per 71.4?8.4.since the artery bridges were mostly rebuilt technologically, with the construction freeway network, reforming and maintenance of large, middle bridges will become key.Though the investigation and analysis of artery bridges current situation, it is pointed out that quantitative evaluation method of bridge maintenance standardization and system, quantitative management indexes and technology-economy principle of bridge maintenance and reforming. The principle, scheming reforming principle. The economical principle of bridge reforming: it is considered that the expenses of strengthening and repairing bridges is not exceeded per 20-30 of investment which is used to built equal scale new bridges, but the actual condition is that such investment power can not solve problems at all. it is reasonable economical principle that one-off investment and maintenance expenses, bridge using life and investment return ratio should be considered comprehensively.