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Preventive Maintenance Techniques for Highway Suspension Bridges
Author(s): 
Pages: 101-106
Year: Issue:  2
Journal: Bridge Construction

Keyword:  suspension bridgesteel truss girdermain cableanchorage chambersuspenderpreventive maintenancemaintenance operation;
Abstract: To implement the preventive maintenance techniques for bridges can effectively prolong the service life cycles of the bridges,reduce the maintenance cost and can promote the rapid development of construction of the cost-saving bridges.In this paper,the Sidu River Bridge on the west section of Shanghai-Chengdu Expressway in Hubei is cited as an example,the methods and measures for the preventive maintenance of highway suspension bridges and the methods for handling of common deteriorations of the bridges are presented.A good tour inspection of the bridges is one of the important measures for the preventive maintenance.For the highway suspension bridges,the anchorage,main cables,suspenders,cable saddles,stiffening girders and towers are the important parts that require routine inspection.The creation of the structural safety and health monitoring systems for the bridges,using the advanced instrumentation and equipment,is also an important measure.The specific maintenance operation is the important means for the preventive maintenance,the operation should be carried out respectively in accordance with the different parts of the anchorage chambers,main cables,suspenders,stiffening steel truss girders and towers and in case the common deteriorations are found,the corresponding handling methods should be timely employed.
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