臺灣博碩士論文加值系統

本文使用兩種高分子複合材料分別為：碳纖維高分子複合材料(Carbon Fiber Reinforced Plastics, CFRP)製成之碳纖維棒，以及玻璃纖維高分子複合材料(Glass Fiber Reinforced Plastics, GFRP) 製成之玻璃纖維棒。試驗第一部份為討論利用GFRP棒應用於混凝土梁構件中，探討其梁受力後之破壞模式以及受力行為，且將ACI 440單筋梁設計、修正ACI 440雙筋梁設計與GFRP梁試體之實驗值進行比較，提出一合理之設計公式。第二部份為將碳維棒進行握裹試驗，試驗變數分別為握裹長度、混凝土設計強度。試驗之結果用以了解CFRP棒與混凝土塊握裹之行為模式，並且提出一合理之握裹長度以供工程師參考。第三部份為使用CFRP棒與GFRP棒分別進行耐久性試驗，耐久性試驗之內容包括紫外線照射試驗、恆溫恆濕試驗以及耐酸鹼試驗，試驗之結果可供往後工程師設計之參考資料。

In this thesis, glass fiber reinforced plastics (GFRP) bar was used to replace the reinforcement in RC beam. Three different concrete strengths and two different types of scaled-down RC beams were used in the four-point bending test. According to the ACI 440 and ACI 318 codes, a modified design method was proposed for RC beam with GFRP bars. Carbon fiber reinforced plastics (CFRP) bar with three different concrete strengths and six embedment lengthes were used in the pullout test to obtain the relationship between the debonding strength and concrete strength and embedment length. Finally, CFRP bar and GFRP bar were used under different conditions (such as emgerging in high chloride liquid, exposing in UV light and changing the temperature and humidity) to obtain the durability of the composite bars.

中文摘要 i
英文摘要 ii
誌謝 iii
目錄 iv
表目錄 vii
圖目錄 ix
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機與目的 2
1.3 文獻回顧 5
第二章 試驗規劃 14
2.1 GFRP梁試驗規劃 14
2.1.1 GFRP梁試驗規劃 14
2.1.2 GFRP梁製作 16
2.1.3 GFRP梁試驗設備及步驟 28
2.2 CFRP棒握裹試驗規劃 30
2.2.1 CFRP棒握裹試驗規劃 30
2.2.2 CFRP棒握裹試體製作 31
2.2.3 CFRP棒握裹試驗設備及方法 39
2.3 CFRP棒與GFRP棒耐久試驗規劃 41
2.3.1 耐鹼 (pH)試驗 41
2.3.2 紫外線照射試驗 42
2.3.3 溫濕循環試驗 47
2.3.4 耐久性試體編號 49
第三章GFRP梁試驗結果 51
3.1 試體梁破壞行為 51
3.1.1 設計強度210 kgf/cm2試體破壞情形 51
3.1.2 設計強度280 kgf/cm2試體破壞情形 63
3.1.3 設計強度350 kgf/cm2試體破壞情形 72
3.2 試體梁試驗結果討論 83
3.2.1 相同混凝土強度下梁極限載重強度之比較 83
3.2.2 相同混凝土強度下梁變型量之比較 84
3.2.3 ACI規範驗證GFRP梁 87
第四章 碳纖維棒握裹試驗結果 93
4.1 握裹試體試驗破壞情形與結果 93
4.2 握裹試體試驗公式推導 102
第五章 纖維棒耐久性試驗結果 107
5.1 耐鹼 (pH值)試驗結果 107
5.2 紫外線照射試驗結果 111
5.3 溫濕循環變化試驗結果 113
第六章 結論與建議 118
6.1 結論 118
6.2 建議 120
參考文獻 121

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