Vertical Load-Carrying Natural Frequency of Railway Double-Track Pre-Stressed Concrete Continuous Bridge

Abstract:

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The railway double-track continuous bridge vertical load-carrying frequency is theoretical derived with the vehicle-bridge system mode1. The vertical load-carrying frequencies of the 40 m+4×72 m+40 m party pre-stressed concrete continuous box-girder bridge are calculated, when two trains with 20 same high-speed passenger vehicles are traveling on the bridge from both ends. The change regularity of this double-track continuous bridge vertical load-carrying natural frequency with two trains on it is similar with that of the single-track simply supported bridge and this bridge as one train on it. This bridge vertical load-carrying frequency when two trains on it is smaller than that only train on it. The maximum deviation percentage between the vertical load-carrying natural frequency and the vertical natural frequency is 1.17837%.This bridge vertical load-carrying frequency can be replaced by its natural frequency, and there isn’t obvious error. If the vertical load-carrying frequency should be calculated, it can be replaced by the average value.

Info:

Periodical:

Advanced Materials Research (Volumes 255-260)

Edited by:

Jingying Zhao

Pages:

797-800

DOI:

10.4028/www.scientific.net/AMR.255-260.797

Citation:

J. Y. Ren et al., "Vertical Load-Carrying Natural Frequency of Railway Double-Track Pre-Stressed Concrete Continuous Bridge", Advanced Materials Research, Vols. 255-260, pp. 797-800, 2011

Online since:

May 2011

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Price:

$35.00

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