Ramp/Bridge Interface in Railway Prestressed Concrete Bridge
Publication: Journal of Structural Engineering
Volume 116, Issue 6
Abstract
The purpose of this paper is to study the factors that contribute to the dynamic behavior of railway ramp/bridge interfaces. A nonlinear, 100‐ton, freight car vehicle model (gross weight 131.5 tons) and a 50‐ft (15.24‐m) long, ballasted prestressed concrete railway bridge were used to determine the approach of the ramp/bridge interface that creates the least dynamic response. The track irregularities on the approach of the ramp/bridge interface and the bridge were generated from power spectral density functions for Federal Railroad Administration (FRA) Class 4 track (maximum speed 60 mph). Impact percentages in the bridge due to a two 100‐ton freight car train operating at 50 mph (80.45 km/h) were calculated. The influences of ramp length and vertical track stiffness in the ramp/bridge interface were studied.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 116 • Issue 6 • June 1990
Pages: 1648 - 1659
Copyright
Copyright © 1990 ASCE.
History
Published online: Jun 1, 1990
Published in print: Jun 1990
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