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Your search keyword '"*LONG-span bridges"' showing total 3 results
Start Over Descriptor "*LONG-span bridges" Region japan
3 results on '"*LONG-span bridges"'

1. Monitoring of long-span bridges in Japan.

Author

Ab, Masato and Fujino, Yozo

Subjects
*LONG-span bridges, *SEISMIC testing, *BRIDGE design & construction, *EARTHQUAKES, *CONSTRUCTION industry
Abstract

Japan currently has 15 suspension bridges, three cable-stayed bridges and a truss bridge with spans over 500 m. Given the country's exposure to earthquakes and typhoons, structural behaviour during seismic and wind loading are major concerns, so many of the bridges have been instrumented and continuously monitored since completion. This paper provides an overview of the development of monitoring of long-span bridges in Japan, with examples of effective utilisation of the monitored data. These include using data to verify design assumptions, update specifications for construction, enable active vibration control and evaluate performance and damage of structures during extreme events. Research is currently under way on how to extend the application of monitoring data for operation and maintenance. [ABSTRACT FROM AUTHOR]

Published
2017
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2. New consideration on flutter properties based on step-by-step analysis

Author

Matsumoto, Masaru, Matsumiya, Hisato, Fujiwara, Shinya, and Ito, Yasuaki

Subjects
*FLUTTER (Aerodynamics), *STRUCTURAL plates, *LONG-span bridges, *SELBERG trace formula, *TORSION, *DEGREES of freedom
Abstract

Abstract: This paper studies the coupled flutter mechanism of plate and long span bridges based on step-by-step analysis (SBS). Fundamental flutter modes are defined based on amplitude ratio and phase difference between heaving and torsional motions. Furthermore, a formula remarkably similar to the Selberg formula can be derived by use of the particular simplified flutter-onset condition. In the process of SBS analysis, some torsional divergent velocities where the torsional rigidity becomes zero can be defined. Finally, the flutter-behavior of an elastic model of the complete Akashi-Kaikyo Bridge, which is the longest suspension bridge in the world, is studied from the point of view of flutter in 2 degrees of freedom, namely heaving and torsional motion, taking into account the structural coupling effect of additional torsional displacement induced by horizontal displacement as a structural coupling property. [Copyright &y& Elsevier]

Published
2010
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3. Japan leads in long spans.

Subjects
*ASSOCIATIONS, institutions, etc., *CABLE-stayed bridges, *LONG-span bridges, JAPAN. Honshu-Shikoku Bridge Authority
Abstract

Reports on the Association Francaise Pour La Construction conference in Deauville, France that tackled the subject of cable-stayed and suspension crossings. Japan's lead in long-span bridge engineering; Projects planned by Honshu-Shikoku Bridge Authority.

Published
1994

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