Title

動態車輪載重對鋪面績效影響的評估

Authors

王鈞平

Key Words

靜態非均佈載重 ; 動態均佈載重 ; 彈塑性 ; non-uniformly static contact stress ; uniformly dynamic contact stress ; static-plastic property

PublicationName

中央大學土木工程學系學位論文

Volume or Term/Year and Month of Publication

2007年

Academic Degree Category

碩士

Advisor

張瑞宏

Content Language

繁體中文

Chinese Abstract

本研究採用三維有限元素分析鋪面結構,分成二部份,一是靜態非均佈載重,另一是探討動態均佈載重。分別說明如下: 在靜態非均佈載重方面,續用前人將輪胎模型模擬成輪胎與鋪面表面的接觸應力分佈,模擬車輛停止時對鋪面的影響。 在動態均佈載重方面,使用均佈車輪載重,並讓載重隨時間改變作用位置,模擬車輛等速移動時對鋪面的影響。 以上兩種情形,再針對路基土壤材料彈塑性、不同含水量、以及覆土應力作用下,分析不同胎壓與載重作用下鋪面的反應。研究結果顯示,載重型式相同時,動態對鋪面的影響比靜態小;但由於均佈載重和非均佈載重會隨載重和胎壓的增加而造成差異增大,導致表面撓度和應變會有所差異。

English Abstract

In this study, 3-dimensional finite element model is used to analyze pavement response. Two parts are included in the analysis. On one hand, non-uniformly static contact stresses are considered; on the other hand, uniformly dynamic contact stresses are discussed. In the condition of non-uniformly static contact stress, pavement structure effect of vehicle stop is simulated and the effect of tire pressure on pavement structure under traffic load was observed. In the condition of uniformly dynamic contact stress, load positions are changed with time to simulate pavement structure effect of vehicle moving at uniform speed. In the analysis, plastic material property, water content, and earth stress are used to analyze the pavement response under different loads and tire pressures. The results show that, when the loading type is the same, the dynamic influence is smaller than static. However, there are different between the results from uniform and non-uniform loads. Increasing load and tire pressure lead to different deflections of surface and strains.

Topic Category 工學院 > 土木工程學系
工程學 > 土木與建築工程
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Times Cited
  1. 陳俊榮(2015)。以小礫石控制瀝青混凝土摩擦特性之可行性研究。中興大學土木工程學系所學位論文。2015。1-80。 
  2. 劉軒彣(2010)。熱拌瀝青混凝土應用於軌道道床之評估 ~以台鐵台南沙崙支線計畫為例~。成功大學土木工程學系碩士在職專班學位論文。2010。1-95。 
  3. 蔡崇良(2009)。分析鐵路道床鋪設瀝青混凝土之力學行為 ~以屏東潮州捷運化為例~。成功大學土木工程學系碩士在職專班學位論文。2009。1-135。
  4. 陳宗孝(2016)。瀝青膠泥對密級配瀝青混凝土摩擦特性之研究。中興大學土木工程學系所學位論文。2016。1-69。