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http://dx.doi.org/10.7781/kjoss.2012.24.1.047

Dynamic Behaviors of a Corrugated Steel Tunnel Lining System due to Wind Loads by Passing Vehicles according to the Boundary Conditions  

Mha, Ho-Seong (호서대학교 토목공학과)
Cho, Kwang-Il (포항산업과학연구원 강구조연구소)
Yoo, Sung-Heum (호서대학교 토목공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.24, no.1, 2012 , pp. 47-58 More about this Journal
Abstract
Dynamic behaviors of a corrugated steel plate tunnel lining system are examined under wind loads due to passing vehicles. Applied wind loads are simulated by applying the time functions as a vehicle moves through the tunnel. Wind loads are described by the pressure and suction as a vehicle arrives and leaves target positions in the tunnel. The tunnel lining is modeled using the simplified shell elements that retain the characteristics of the corrugated shapes. The displacements of the tunnel lining are evaluated under various conditions regarding wind velocity and the passing vehicles. The responses are found to increase as the vehicle velocity and wind velocity increase. A maximum displacement of 25mm occurs when two vehicles are crossing at the speed of 120km/h. A row of vehicles running consecutively minimally affects the dynamic responses with less than 2.5% of the dynamic responses enlarged and attributed to one running vehicle. It should be noted that the dynamic responses of the tunnel lining should be considered when there is no shotcrete applied.
Keywords
corrugated steel plate tunnel lining; wind load; running vehicle; time history analysis;
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