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Title:Hidden Strength: The Fourth Dimension by Erin Leigh Dillon, Civil Engineering
Author(s):Dillon, Erin L.
Subject(s):Civil and Environmental Engineering
Issue Date:2014-05
Citation Info:Time. We think of it as a destroyer. We see the rusted girders and cracking supports of the old railroad bridge, but is it possible that time can strengthen? The track and superstructure draw our first attention, but my research shifts the focus to the less obvious it looks at the soil that the bridges foundation rests on and asks if train vibrations, stretching over time, can actually help the soil resist liquefaction during earthquakes and add to the support of the structure. Much is known about how time and vibration separately affect the bridge itself, but little is known about how the soil under the foundation is affected by the train vibrations. Combining laboratory and field testing, my work quantifies these train vibrations and evaluates how the improved strength and performance of the soil contribute to the seismic resistance of the overall bridge structure. By learning more about how the soil changes over time, engineers will have more data to predict how the bridge will stand up to the test of time. ' ELD Railroad Bridge, Scioto River, Chillicothe, Ohio. This material is based upon work supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. DGE-1144245.
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URI:http://hdl.handle.net/2142/49078
Rights Information:Copyright 2014 Erin Leigh Dillon
Date Available in IDEALS:2014-05-14


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