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論文中文名稱:CFRP棒應用於高強度混凝土梁之力學行為探討與耐久性之研究 [以論文名稱查詢館藏系統]
論文英文名稱:A Study on the High Strength Concrete Beams with CFRP Bars and Durability [以論文名稱查詢館藏系統]
院校名稱:臺北科技大學
學院名稱:工程學院
系所名稱:土木與防災研究所
出版年度:97
中文姓名:洪明中
英文姓名:Ming-Jung Hung
研究生學號:95428010
學位類別:碩士
語文別:中文
口試日期:2008-06-26
論文頁數:145
指導教授中文名:李有豐;林至聰
口試委員中文名:陳清泉;黃兆龍
中文關鍵詞:FRP 棒RC梁高強度混凝土耐久性
英文關鍵詞:FRP BarFlexural Concrete BeamHigh Strength ConcreteDurability
論文中文摘要:本論文主要探討碳纖維高分子複合材料(Carbon Fiber Reinforced Plastics, CFRP)所製成的CFRP棒應用於高強度混凝土梁的力學行為,並探討CFRP棒與玻璃纖維高分子複合材料(Glass Fiber Reinforced Plastics, GFRP) 所製成的GFRP棒之耐久性實驗。梁試驗採用不同強度混凝土之CFRP梁,試驗中以測力計(Load Cell)與測微計(Dial Gauge)測量各組梁試體受力與變位關係,各組梁進行比較與破壞模式分析。並將ACI 440單筋梁設計、修正ACI 440雙筋梁設計與CFRP梁試體之實驗值進行比較,提出較合理的設計公式。試驗結果顯示,CFRP梁受力與變位關係呈線性,無明顯降伏點即產生破壞,設計時宜採用工作應力法藉由安全係數防止其瞬間破壞;高強度混凝土CFRP梁撓度較小,且採高筋設計時可提高極限強度。CFRP棒與GFRP棒的耐久性實驗(耐酸、耐鹼與耐硫酸鹽試驗),由試驗結果可知CFRP棒不論在酸鹼溶液以及鹽類的環境下均有良好的耐久性,適合運用於耐久性結構,而GFRP棒在酸鹼溶液以及鹽類的環境下表現均較CFRP棒差,此結果可做為未來FRP棒製程改良或未來工程師選用材料參考。
論文英文摘要:This paper presents of the flexural behavior of high strength concrete beams reinforced with carbon fiber reinforced plastics (CFRP) rebar. Two different concrete strength and nine different types of scaled-down RC beams were used in the bending test. In the test, measured the force and displacement by Load Cell and Dial Gauge, and compared each other. According to the ACI 440 and ACI 318 codes, a modified design method was proposed for RC beam with CFRP bars. The accelerated aging tests of durability performance were used CFRP bars and glass fiber reinforced plastics (GFRP) bars under different conditions, including acid, alkaline and sulfate environment. The results showed that CFRP bars displayed excellent durability performance, the tensile strength were not reduced under each conditions. In contrast GFRP bars were residual tensile strength 67% in acid, 58% in alkaline and 70% in sulfate environment, showed that the durability performance of GFRP bars were not good.
論文目次:中文摘要 i
英文摘要 ii
誌謝 iii
目錄 iv
表目錄 vi
圖目錄 viii
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機 2
1.3 研究目的 3
1.4 文獻回顧 5
第二章 試驗規劃 13
2.1 CFRP梁試驗規劃 13
2.1.1 CFRP梁試體規劃與編號 13
2.1.2 鋼筋材料與CFRP棒材料 16
2.1.2.1 鋼筋材料 16
2.1.2.2 CFRP棒材料 17
2.1.3 混凝土材料與配比設計 21
2.1.3.1 一般強度混凝土 21
2.1.3.2 高強度混凝土 22
2.1.4 CFRP梁製作 27
2.1.4.1 A組梁製作 27
2.1.4.2 B組梁製作 30
2.1.4.3 C組梁製作 32
2.1.4.4 CFRP梁製作過程 35
2.1.5 試驗方法及設備 40
2.1.6 修正ACI 440雙筋梁規範與破壞模式分析理論 44
2.2 CFRP棒與GFRP棒耐久性試驗規劃 49
2.2.1 FRP棒基本性質與拉力試驗 49
2.2.2 耐酸試驗 52
2.2.3 耐鹼試驗 53
2.2.4 耐硫酸鹽試驗 54
2.2.5 耐久性試驗試體編號 55
第三章 CFRP梁試驗結果 57
3.1 A組試體梁破壞情形 57
3.1.1 一般強度混凝土梁試體破壞情形 57
3.1.2 高強度混凝土梁試體破壞情形 65
3.2 B組試體梁破壞情形 76
3.2.1 一般強度混凝土梁試體破壞情形 76
3.2.2 高強度混凝土梁試體破壞情形 84
3.3 C組試體梁破壞情形 92
3.3.1 一般強度混凝土梁試體破壞情形 92
3.3.2 高強度混凝土梁試體破壞情形 100
第四章 CFRP梁試驗結果討論與破壞模式分析 109
4.1 試驗結果與修正ACI 440雙筋梁計算結果比較 109
4.2 各組試體梁在不同強度時實驗極限強度之比較 113
4.3 CFRP梁在不同強度時實驗極限位移之比較 116
4.4 相同混凝土RC梁與CFRP梁實驗極限強度比較 118
4.5 CFRP梁實驗小結 120
第五章 FRP棒耐久性試驗結果 122
5.1 耐酸試驗結果 122
5.2 耐鹼試驗結果 127
5.3 耐硫酸鹽試驗結果 132
5.4 纖維棒耐久性試驗小結 139
第六章 結論與建議 140
6.1 結論 140
6.2 建議 142
參考文獻 143
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論文全文使用權限:同意授權於2010-08-19起公開