無機聚合樹脂應用於RC梁FRP貼片剪力補強之研究

A Study on Shear Strengthening on Reinforced Concrete Beam with Fiber Reinforced Plastics Jacket by Geopolymer

孫添福(Tien-Fu Shen)

指導教授 ： 吳傳威

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2007年)

https://doi.org/10.6841/NTUT.2007.00206

摘要

摘　要

論文名稱：無機聚合樹脂應用於RC梁FRP貼片剪力補強之研究 頁數：146
校所別：國立台北科技大學 土木與防災 研究所
畢業時間：九十五學年度第二學期 學位：碩士
研究生：孫 添 福 指導教授：吳 傳 威

關鍵詞: 剪力補強、無機聚合樹脂、碳纖維、玻璃纖維

近年來，國內外土木工程界於結構補強修復中，最常選用之粘接修補材料多以環氧樹脂為主。環氧樹脂良好的粘著性能早已受到證實，但其屬於有機物質材料，不耐高溫的性質眾所周知。前期之研究已多方面探討了一種新開發之「無機聚合樹脂」材料取代環氧樹脂的可行性，包括包覆CFRP混凝土圓柱試體之強度及其高溫性能實驗研究，結果証實的確可發揮相當的圍束補強效果，而其耐高溫方面之性能則遠超過環氧樹脂。
本研究則嘗試以「無機聚合樹脂」替代環氧樹脂作為粘接材料，進行鋼筋混凝土梁包覆FRP補強之實驗研究，探討常溫下之剪力補強效能。實驗參數包括三種混凝土強度(140、280、及350 kgf/cm2)、兩種FRP包覆材料(CFRP及GFRP)、及兩種包覆層數(一層及兩層)。鋼筋混凝土梁試體則為15 cm x 20 cm x 150 cm。結果顯示應用無機聚合樹脂包覆FRP鋼筋混凝土梁剪力補強之成效雖稍低於使用環氧樹脂，但仍可有效達成相當之剪力補強需求。

關鍵字

剪力補強 ； 無機聚合物 ； 碳纖維 ； 玻璃纖維

並列摘要

ABSTRACT

Title: A Study on Shear Strengthening of Reinforced Concrete Beam with Fiber Reinforced Plastics Jacket by Geopolymer Pages：146
School: National Taipei University of Technology
Department: Institute of Civil and Disaster Prevention Engineering
Time: July, 2007 Degree: Master
Researcher: Tien-Fu Shen Advisor: Dr. Chuan-Wei Wu

Keywords: Shear strengthening, Geopolymer, CFRP, GFRP

Recently, in the practical field of civil engineering, the most popular bond material used for strengthening reinforced concrete structures is epoxy. The good adhesive effect of epoxy has been widely confirmed. However, its poor heat resistant property is also well known. Preceding works have studied the possibility of using a newly developed inorganic bond material, namely geoplymer, to replace epoxy. Including the strength of concrete cylinders confined by CFRP using geopoliner, as well as their heating resistant experiments. The results were encouraging.
In the present study, it is attempted to step forward. The effect of shear strengthening of reinforced concrete beams with FRP jacket by using geopolymer as bond material under room temperature was investigated. The parameters of the experiments included three different concrete strength, namely 140, 280, and 350 kgf/cm2, two kinds of FRP jacket material, namely CFRP and GFRP, and two different layers. The size of the reinforced concrete beam specimens is 15 cm x 20 cm x 150 cm. The results of the study show that the overall shear strengthening effect of the beams is not better than those of using epoxy, but it reveals that the common requirements of shear strengthening are indeed fulfilled.

並列關鍵字

Shear strengthening ； Geopolymer ； CFRP ； GFRP

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