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研究生:沈廖建
研究生(外文):Liao-ChienShen
論文名稱:超高性能纖維混凝土(UHPFRC)應用於國內橋梁工程之可行性評估
論文名稱(外文):Feasibility Evaluation of Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) Applied to Domestic Bridge Engineering
指導教授:洪崇展
指導教授(外文):Chung-Chan Hung
學位類別:碩士
校院名稱:國立成功大學
系所名稱:土木工程學系碩士在職專班
學門:工程學門
學類:土木工程學類
論文種類:學術論文
論文出版年:2020
畢業學年度:108
語文別:中文
論文頁數:88
中文關鍵詞:超高性能纖維混凝土(UHPFRC)複合材料纖維增強耐用性韌性
外文關鍵詞:Ultra High Performance Fiber Reinforced Concrete(UHPFRC)CompositeFiber-ReinforcedDurabilityDuctile
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相對於一般工程應用之混凝土材料而言,由於高性能纖維混凝土的傑出力學與耐久性特性,國際混凝土產學界已多年持續投入大量資源,進行相關研究與應用,並開發更優秀之力學與耐久性能力,因此新一代高性能纖維混凝土的國際間通用名稱為 : 超高性能纖維混凝土(Ultra High Performance Fiber Reinforced Concrete,簡稱 UHPFRC),藉由各式纖維的添加來發揮橋接效應,使原本脆性之水泥質材料具高韌性之行為。本文概要說明水泥質材料配比技術、材料組成與基本力學性質的變革,並探討將其應用於國內橋梁結構上的可行性評估,期許新材料及技術能帶來土木工程新紀元。
UHPFRC材料雖然也屬於水泥質材料,但因具有超高強度、高韌性及高耐久性等特色,與傳統預力混凝土有極大之差異,因此當其應用於橋梁工程,除可依一般橋梁設計規範進行分析外,雖然包含鋼筋握裹能力、預力錨碇區、容許應力、剪力強度計算等問題與傳統預力混凝土在設計上所考量的仍有些許差異,本文參考實際案例作為同樣設計條件並依據參考文獻中類似分析設計案例,依等比例結構相關尺寸縮減上部結構尺寸斷面,進行最佳化設計,與原實際完工案例作為比較。考慮UHPFRC材料的特性應用在公路橋梁工程設計上,選擇3種橋梁上部結構形式,包含「主線箱型梁」、「匝道箱型梁」及「主線鋼箱梁橋面板」,來進行橋梁上部結構試設計並比較評估採用UHPFRC材料後與原設計之差異。
Compared to the concrete material for general engineering applications,due to the outstanding mechanical and durable properties of high-performance fiber concrete,the international concrete industry has continuously invested a lot of resources for many years to carry out related research and application,developing better mechanical and durability capabilities.Therefore, the international common name of the new generation of high performance fiber reinforced concrete is: Ultra High Performance Fiber Reinforced Concrete(UHPFRC).The bridge effect is realized by the addition of various fibers,making the original brittle cement material has high toughness.
This article outlines the changes in cement material ratio technology, material composition and basic mechanical properties,and discuss the feasibility of applying it to the domestic bridge structure, it is expected that new materials and technology can bring about a new era of civil engineering.
Although UHPFRC materials are also cement materials, but due to their ultra-high strength, high toughness and high durability characteristics, there is a great difference with traditional pre-forced concrete.Therefore, it can be applied to bridge engineering, in addition to the general bridge design specifications can be analyzed.Although the problems of steel grip ability, pre-force anchor area, permissible stress, shear strength calculation and other issues are somewhat different from the design considerations of traditional pre-force concrete.This article refers to the actual case as the same design condition and according to similar analysis of the design case in the reference literature.Reduce the upper structure size section and optimize the design according to the size of the equal proportion structure,compare with the original actual completion case.Consider the properties of UHPFRC materials to be applied in road bridge engineering design,select 3 types of bridge upper structure forms,including Main line box beam,Road box beam and Main line steel box beam bridge panel to carry out the bridge upper structure test design and compare and evaluate the difference between the use of UHPFRC material and the original design.
摘要 I
ABSTRACT II
SUMMARY II
INTRODUCTION III
MATERIALS AND METHODS IV
RESULTS AND DISCUSSION V
CONCLUSION VI
致謝 VII
目錄 VIII
表目錄 X
圖目錄 XI
第一章 緒論 1
1.1前言 1
1.2研究動機 1
1.3研究目的及內容 2
第二章 文獻回顧 4
2.1超高性能纖維混凝土(UHPFRC)簡介及發展 4
2.2超高性能纖維混凝土(UHPFRC)之製程機理與配比技術變革 7
2.2.1 製程機理 9
2.2.2 配比技術變革 14
2.3超高性能纖維混凝土(UHPFRC)材料特性 17
2.3.1 抗壓特性 17
2.3.2 抗拉特性 18
2.3.3 抗彎特性 18
第三章 UHPFRC材料應用於國外橋梁工程案例說明 23
3.1 UHPFRC材料應用於國外橋梁工程之案例 24
3.1.1 美加地區應用案例 24
3.1.2 歐洲地區應用案例 28
3.1.3 紐澳地區應用案例 36
3.1.4 亞洲地區應用案例 39
第四章 UHPFRC材料應用於國內案例評估與討論 45
4.1 目前國內橋樑工程施工中常遭遇的狀況 45
4.1.1 橋梁下部結構工程 45
4.1.2 橋梁上部結構工程 47
4.2 UHPFRC材料應用於公路橋梁工程之評估 57
4.2.1 主線預力箱型梁之試設計 58
4.2.2 匝道預力箱型梁之試設計 60
4.2.3 主線鋼箱梁橋面板之試設計 63
4.2.4 設計差異 66
4.3 分析比較 68
4.3.1 成本差異 68
4.3.2 生命周期差異 70
4.3.3 養護維修差異 73
4.3.4 施工及時間差異 75
4.4 其他附屬工程應用之評估 78
4.4.1橋梁伸縮縫 78
4.4.2 公路護欄 79
第五章 結論與建議 81
5.1 結論 81
5.1.1 超高性能纖維混凝土應用於橋樑工程的優點 81
5.1.2 超高性能纖維混凝土應用於橋樑工程的挑戰 83
5.2 建議 84
5.2.1 超高性能纖維混凝土於國內發展建議說明 84
5.2.2 後續研究建議 85
參考文獻 86
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