DSpace collection: 會議論文

高速鐵路橋梁的幾個重要動力問題

title: 高速鐵路橋梁的幾個重要動力問題 abstract: 在台灣高速鐵路的路線規劃中，基於節省用地面積，並考慮、降低對沿線社區所帶來的阻隔之影響，有近75% 的路線是採用高架橋方式來作為高速列車的輸送幹道。由於列車的速度高達250-350 km/hr，幾為飛機速度的1/4 至1/3，動能非常大，因此有關「車橋互制」的複雜問題，便成為一新興的課題，對於列車的操控性及乘客的舒適度，都有重大影響。另者，高速列車挾其巨大的動能，對於沿線精密廠房或住宅，也會產生一定的振動影響，這是在設計時所必須加以注意的。此外，臺灣地處環太平洋地震帶，也有必要考慮地震對列車行車安全的影響。本文即以橋梁受車行的車橋互制振動現象為主題，針對橋梁共振、列車受地震作用時之穩定性、列車引致之土壤振動等不同課題進行摘要性之說明，期使國內外工程界能了解高速鐵路振動問題的重要性。

版式軌道受列車之動力互制行為

title: 版式軌道受列車之動力互制行為 abstract: 本文旨在探討版式軌道在高速列車作用下的動態反應及輪軌間的互制行為，所謂的版式軌道是不用道碴的，與傳統的道碴型軌道系統有所不同，本文旨在研究版式軌道與列車的動力互制行為。文中先對版式軌道系統的模擬方式，作一簡單的介紹，並以Yang和Yau(1997)所提之車橋互制理論作為基本架構來進行分析，而在列車系統方面，則是將介於車箱與車輪間之台車，模擬成剛性構件(rigid body)，以考慮其對相接輪軸之聯結效應。在分析列車-軌道反應的研究中，主要是利用Newmark 差分技巧及動態濃縮法，將車體自由度濃縮至所對應的軌道元素自由度中，以得到車-軌互制元素，然後再以此元素為基礎，進行版式軌道系統之車-軌互制動力歷時分析。由本文結果顯示，當輪軌達到共振條件時，則鋼軌反應將會大幅放大。

隔震橋梁受高速列車的動力反應

title: 隔震橋梁受高速列車的動力反應 abstract: 本文希望藉由理論解析的方式，推導出隔震型橋梁在高速列車通過下之動態反應理論解，發現在大部分情況下，隔震彈性支承將造成橋梁及列車反應之放大現象。為了說明本研究成果的可靠性，在例題中將輔以車橋互制有限元素分析結果，以作為評估隔震措施在高速鐵路橋梁的適用性。

車橋動力分析在鐵路橋樑工程應用之探討

title: 車橋動力分析在鐵路橋樑工程應用之探討 abstract: 鐵路橋梁因列車固定而有規則的車軸距，常是列車移動型載重引發橋梁產生共振的主因。尤其是當列車速率不斷提昇的狀況下，橋梁因列車通過所造成的共振現象更是顯著，若設計不當，則長期下來行車品質(舒適度)將會大受影響，而橋梁本體也將因動態反應的加劇，導致材料疲乏現象的發生，而縮短橋體的服務年限o 由於橋梁的衝擊反應是由一連串的「共振」與「相消」反應所組成，若能藉由車橋振動理論解中的相消條件將主共振尖峰予以消除，則橋梁與車體的衝擊反應將達到最小。因此本文旨在藉由有限元素動力分析程式，分析等跨連續橋梁受到台鐵列車作用之動態反應，以對於連續橋梁之跨數與跨長作一探討，使橋梁可於規劃設計階段，經由理論與電腦數值模擬的方式來避開因列車行駛所引起的共振現象，這將有助於未來橋梁在營運階段維修費用的節省;使用年限的增長;以及行車服務品質的提昇，進而達到橋梁最佳化設計之目標。

水平簡支曲梁受高速列車作用之衝擊反應

title: 水平簡支曲梁受高速列車作用之衝擊反應 abstract: 本文旨在以解析的方式來研究水平曲橋受高速列車作用下之垂直衝擊反應分析，文中將以一序列等間距的移動荷重來模擬高速列車通過橋梁的作用力，而曲橋則設定為水平簡支橋，且直以歐拉(Euler)梁理論模擬之。基於上述考量，可對水平簡支曲梁受到等速列車載重下的衝擊反應做一理論探討。從解析結果顯示，曲橋於高速列車作用下之衝擊反應將會發生「共振」與「相消」的現象。所謂「共振」是指曲橋於高速列車通過時，其衝擊反應將隨通過車輛數的增加而放大:至於「相消」則是指在某種車速狀況下，橋梁的衝擊反應將不會因通過車輛數的增加而有加成現象。本文之解析結果將可作為水平曲橋於高速列車作用下之衝擊反應的設計參考，文中將輔以實例計算來說明本研究所得結果之合理性。

鋼筋混凝土構件之韌性補強方法與設計

title: 鋼筋混凝土構件之韌性補強方法與設計

輪軌列車的互制共振現象

title: 輪軌列車的互制共振現象

創造e-化數位學習環境－以淡大建築技術系「電腦輔助結構分析」課程為例－

title: 創造e-化數位學習環境－以淡大建築技術系「電腦輔助結構分析」課程為例－

高鐵隔震橋受車行的共振現象

title: 高鐵隔震橋受車行的共振現象

高速列車引致土壤振動之考慮要點

title: 高速列車引致土壤振動之考慮要點

VIBRATION SUPPRESSION OF TRUSS BRIDGES SUBJECTED TO HIGH SPEED TRAINS

title: VIBRATION SUPPRESSION OF TRUSS BRIDGES SUBJECTED TO HIGH SPEED TRAINS

Vibration Reduction of Simple Beams with Absorbing Beams to Moving Loads

title: Vibration Reduction of Simple Beams with Absorbing Beams to Moving Loads

Vibration reduction of continuous truss bridges to moving loads by a hybrid MTMD system

title: Vibration reduction of continuous truss bridges to moving loads by a hybrid MTMD system

Vibration of suspended beams to moving loads and support motions

title: Vibration of suspended beams to moving loads and support motions

水平曲梁受移動質量及地震之振動反應

title: 水平曲梁受移動質量及地震之振動反應 abstract: 本文旨在以理論解析的方式，探討水平雙鉸曲梁於水平地震下受串列移動質量之「面內」動力反應。由於地震對支承作用，導致吾人須面對求解具有時變性非齊性邊界條件之動力問題，針對此課題，本文將藉由擬靜態方法，透過解析的方式探討本課題。從解析計算過程，吾人將可得到水平曲梁受串列移動質量與地震作用下之動態反應。從說明例顯示，地震之引進將會明顯地放大曲梁之反應，而曲梁之最大反應也並不一定會發生在跨度中央位置。

Torsional analysis of tapered I–beams using Bernoulli-Euler beam theory

title: Torsional analysis of tapered I–beams using Bernoulli-Euler beam theory

Suppression of Train - Induced Vibrations of Continuous Truss Bridges by Hybrid TMDs

title: Suppression of Train - Induced Vibrations of Continuous Truss Bridges by Hybrid TMDs

Resonance of Ballastless Track Systems Caused by Vehicle-Track Interaction

title: Resonance of Ballastless Track Systems Caused by Vehicle-Track Interaction

Reduction of Wind-Induced Vibration of Tall Buildings Using Suspended Mass Pendulums

title: Reduction of Wind-Induced Vibration of Tall Buildings Using Suspended Mass Pendulums

Phenomena of Resonance and Cancellation for Bridges with Elastic Bearings Traveled by High Speed Trains

title: Phenomena of Resonance and Cancellation for Bridges with Elastic Bearings Traveled by High Speed Trains

Performance of MTMD for vibration suppression of continuous bridges under high speed trains

title: Performance of MTMD for vibration suppression of continuous bridges under high speed trains

NONLINEAR VIBRATIONS OF SIMPLE TRUSS-BEAMS TO MOVING LOADS

title: NONLINEAR VIBRATIONS OF SIMPLE TRUSS-BEAMS TO MOVING LOADS

Large Deflection Analysis of a Guyed Column Pulled by a Cable

title: Large Deflection Analysis of a Guyed Column Pulled by a Cable

Investigation on soil-viaduct-pile vibrations induced by high speed trains

title: Investigation on soil-viaduct-pile vibrations induced by high speed trains

In-plane vibration of two-hinged arches due to horizontal earthquakes

title: In-plane vibration of two-hinged arches due to horizontal earthquakes abstract: 本文主要目的在於探討雙鉸拱受水平地震力作用之面內振動反應。文中將拱模擬成均勻圓梁，並藉由擬靜態分解法將此圓拱受地震之面內振動總反應，分解成擬靜態與動力兩類反應。然後，透過理論解析分式，求得拱在水平文承運動下之擬靜態反應的理論解。接著，便可應用Newmark 數值法來計算屬於動力反應之結果。在考量固定跨度和曲率半徑情況下，拱受水平地震作用之相對位移反應將因開展角之增加而放大，並且其最大反應也並不一定會發生在拱的中點位置，此點將可作為工程設計之參考。

Impact Envelope Formula of Simple Beams due to High Speed Trains

title: Impact Envelope Formula of Simple Beams due to High Speed Trains

Effect of axle interactions on the dynamic response of the simple beam and vehicles moving over it

title: Effect of axle interactions on the dynamic response of the simple beam and vehicles moving over it

Dynamic interaction of cable stayed bridges with moving high speed trains

title: Dynamic interaction of cable stayed bridges with moving high speed trains

Damage detection of a cracked column via a neural network approach

title: Damage detection of a cracked column via a neural network approach

Vibration reduction of steel-truss bridges due to high speed trains

title: Vibration reduction of steel-truss bridges due to high speed trains

Measurement of dynamic response of railway bridges under moving vehicle loads

title: Measurement of dynamic response of railway bridges under moving vehicle loads abstract: To identify the causes for the unprecedented high-amplitude vibrations reported for the trains moving at certain speeds, both experimental and theoretical investigations were conducted on two adjacent simply supported bridges of concern. The present results indicate that the elastic bearings inserted at the supports are responsible mainly for the unprecedented resonant vibrations, although their main function is to isolate the earthquake forces transmitted from the ground. From the design point of view, there is obviously a trade-offbetween the isolation of earthquakes, which is oflower probability of occurrence, and the maintenance of riding quality and maneuverability of the train, which affect daily the passengers on their travel.

Dynamic response of high speed rail bridges and traveling vehicles

title: Dynamic response of high speed rail bridges and traveling vehicles

Dynamic response of bridges with elastic bearings due to high speed trains

title: Dynamic response of bridges with elastic bearings due to high speed trains