運用因次分析的方法分析版式軌道之應力

機構典藏 > College of Engineering > Graduate Institute & Department of Civil Engineering > Proceeding > Item 987654321/70048

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Title:	運用因次分析的方法分析版式軌道之應力
Other Titles:	Stress Analysis of Slab Track System Using Dimensional Analysis
Authors:	顏少棠;李英豪
Contributors:	淡江大學土木工程學系
Keywords:	版式軌道;剛性路面;版理論;因次分析;Slab track;Rigid pavements;Elastic track theory;Medium-thick plate theory;Dimensional analysis
Date:	2005-12
Issue Date:	2011-10-23 20:44:11 (UTC+8)
Publisher:	臺北縣淡水鎮：淡江大學技術學院
Abstract:	版式軌道是由鋼軌、扣件、混凝土版與路基組成之複雜系統，若以理想、之彈性理論進行分析將無法較精確地掌握其力學行為。而版式軌道在不考慮、以鋼筋混凝土或預力混凝土方式設計時，其型態與剛性路面之的結構型類似。因此，本研究之主要目的在以軌道力學理論為基礎，結合剛性鋪面力學分析之方式，建立新式的版式軌道力學分析方法。研究中以自由體圖之概念，將版式軌道系統分成軌道與混凝土版之模組，並分別應用軌道力學理論與剛性鋪面之版理論進行分析。本研究採用因次分析的方法，配合三維有限元素法數值運算與統計分析之方式，加入各種無因次參數所組成的調整因子，以此建立新的軌道力學分析程序。 A slab track system consists of the rails, rail-pad-fastener systems, ties, concrete slab, and subgrade. However, the design of slab tracks is similar to that of rigid pavements except that "the loads are applied to the rails connected directly to the concrete slab or through rubber booted block ties". Therefore, the main objective of this study is to investigate their theoretical discrepancies, develop adjustment factors and analysis procedures based on elastic track theory and medium-thick plate theory to account for various practical track conditions more realistically. The track-slab system was separately analyzed using the concept of free body diagram. Based on the elastic track theory and plate theory, several dimensionless parameters were identified and various prediction models were developed. A systematic analysis procedure was developed for future slab track analyses.
Relation:	2005兩岸鐵道工程技術與營運管理學術研討會論文集，頁139-157
Appears in Collections:	[Graduate Institute & Department of Civil Engineering] Proceeding

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