碩士 / 國立成功大學 / 土木工程學系 / 103 / The light rail currently constructing in Kaohsiung is embedded rail, its rails made of an elastic coating material coated and embedded in concrete track slab, and it is continuous support track system. There is a passage of Kaohsiung Light Rail’s railroad lines has crossed the bridge of love river, all the tracks of Kaohsiung Light Rail are continuous welded rail, so the track on the bridge will have track-bridge interaction and cause the axial force of the rail become complicated, which may cause buckling or tensile failure and other risks.
The thesis used finite element software Abaqus to analysis the subject. The material parameters of the elastic coating material would have experiment as verification, and establish the track model the same as actual track to validate the feasibility of the finite element model. Finally, the thesis will establish the track-bridge finite element model, changing the temperature of the ambient, and analyzing the axial force of the rail during the warming and cooling. The thesis used Abaqus to run the buckling modal analysis to identify the critical buckling load of the track, and observing the axial force of the track generated from temperature increased will be greater than the critical buckling load. The result of the tensile stress of the rail generated from the temperature decreased is lower than the minimum tensile strength of the rail. Finally, according to the model analysis to determine the track on bridge needs to install the expansion joints to avoid buckling or tensile failure.
| Identifer | oai:union.ndltd.org:TW/103NCKU5015027 |
| Date | January 2015 |
| Creators | Wei-KaiChen, 陳韋凱 |
| Contributors | Chen-Ming Kuo, 郭振銘 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 63 |
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