Study On The Preventive Maintenance Key Technologies Of Common Trunk Road Bridges In Hebei Province

With the rapid development of the transportation, as the throat of the traffic, Bridgesplaying more important roles than before.The number of existing bridgeare more than 7000,which service in the national and provincial trunk roads more than 240 and the total length reaches 470 000 m in Hebei Province.And with the rapid development of national economy, an increasing incidence of bridge traffic, the number of bridge damage increasing, bring the enormous pressure of bridge maintenance personnel. The original maintenance methods cannot completely meet the requirements of modern bridge use, to change the present passive maintenance situation, the most effective way is to implement the preventive maintenance. Bridge implementation of preventive maintenance in reducing maintenance costs, prolong the service life of bridge, delay the bridge using performance deterioration rate and so on has the vital significance.On the basement of national and international studies,This article embarks from the preventive maintenance work, and combining with the status of commontrunk highway bridge, the bridge of the preventive maintenance of key technology are studied. This paper combined with the domestic bridge development use present situation and preventive research situation at home and abroad, the preventive maintenance of the bridge are studied, the bridge the basic concept of preventive maintenance, summarized the content and requirements of bridge preventive maintenance, summarized the characteristics of the bridge preventive maintenance and preventive maintenance technology; analysis of bridge Second, the system research, on the basis of common trunk highway bridge diseases in hebei province, according to various diseases, preventive maintenance measures in bridge whole life cycle; Again, according to the bridge inspection data, determine the technical conditions of the bridge; Finally, from the object of the organizational structure of the preventive maintenance and maintenance, equipment, materials, data, information, human resources, and common research on the key technology such as preventive maintenance measures. Preventive maintenance can provide reference for design, construction, convenient bridge maintenance management, promote the further development of the bridge.