Abstract
From monitoring and maintenance work on the Akashi Kaikyo Bridge, a super long-span suspension bridge, new information has been obtained. This paper describes some of the new technologies used. To protect the main cables from corrosion, a dry-air injection system was newly developed and found capable of keeping the relative humidity low enough in the cable bundles. To suppress unexpected wind-induced oscillation observed in hanger ropes, an aerodynamic countermeasure was employed and its performance was confirmed in typhoon-strength winds. Girder displacement records were stored by monitoring with Global Positioning System (GPS) measuring instruments. The relationships between girder displacement and both wind speed and temperature were analysed to compare actual bridge behaviour with design values. Results indicate the possibility of more accurately diagnosing the soundness of bridges. These technologies are expected to contribute towards maintaining the soundness of the Akashi Kaikyo Bridge.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
