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碩士論文公告區 |
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| 年度： | 94 | |
| 姓名： | 唐孟瑞(Meng-Rui Tang) | |
| 論文題目(中)： | 碳纖維貼片補強磚構件之耐久性能測試研究 | |
| 論文題目(英)： | Durability of Strengthening Brick Members Using CFRP Sheets | |
| 摘要(中)： | ||
| 磚造結構物的補強是今日國內外土木工程界的重要課題。在這方面複合材料有著強大的潛力，而碳纖維貼片補強工法更是當前補強方法的新趨勢。許多的研究指出碳纖維複合材料能使用在維修與補強結構。然而，在其耐久性方面的研究卻是相當缺乏。碳纖維材料能否成功當作磚造建築物維修與補強的材料，耐久性是決定性的因素。 本研究主要探討CFRP補強磚作古蹟構件之耐久性。為了確認其耐久性，將磚構件（清水磚）試體貼覆CFRP貼片，放置於紫外箱循環環境與凍融循環環境測試後，進行表面硬度值檢測、拉拔強度試驗、壓剪試驗、抗壓試驗與抗彎試驗，利用上述測試環境與試驗結果來評估CFRP補強磚作古蹟構件之效能及耐久性。 由試驗結果得知， CFRP補強磚構件對於抵抗撓曲應力和剪力應力莫大的提升,但對抗壓強度無顯著補強的效果。經上述兩種環境測試後得磚構件與CFRP之間黏結尚稱良好，壓剪及抗彎試體會因補強層數的增加而增加強度；但試體黏結拉拔強度會受到環境影響而降低。 |
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| 摘要(英)： | ||
| Retrofit and repair of brick structures has been an important issue in civil engineering nowadays. The utilization of advanced composite materials shows great potential in the area of structural rehabilitation. The implementation of structural strengthening with CFRP sheets is a new trend in the world. Extensive researches have been carried out on using CFRP composites for repair and strengthening; however, information about their durability is still lacking. The long-term durability of CFRP composites is a decisive factor in successful application as repair materials or as reinforcement for brick. This research is to discuss the durability of retrofit brick members using CFRP. In order to assure the durability, brick member specimens wrapped CFRP sheets which were subjected to two different environments including ultraviolet and freeze-thaw cycling were tested on surface hardness, , pull-out strength, compressive shear strength, compressive strength and flexural strength tests. After the above environment conditions and tests, the evaluation of the effect and the durability of brick members wrapped with CFRP sheets can be made. Results show that brick members wrapped with CFRP could increase flexural and shear strength but couldn’t improve compressive strength. After environment test, it still shows good bonding between brick members and CFRP. And strength of compressive shear or flexural specimens does not decrease by CFRP layers but decrease strength of pull-out ones. |
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| 檔案： | 沒有相關檔案 | |
| 相關連結： | http://ethesys.lib.cyut.edu.tw/ETD-db/ETD-search-c/view_etd?URN=etd-0213106-073702 | |