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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 廖文正 | |
dc.contributor.author | Yao-Jen Kuo | en |
dc.contributor.author | 郭耀仁 | zh_TW |
dc.date.accessioned | 2021-06-16T22:58:32Z | - |
dc.date.available | 2012-08-10 | |
dc.date.copyright | 2012-08-10 | |
dc.date.issued | 2012 | |
dc.date.submitted | 2012-08-08 | |
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[33] Japan Concrete Institute, Technical Committee on Autogenous Shrinkage of Concrete “Committee Report,” Autogenous Shrinkage of Concrete, edited by .Ei-ichi Tazawa, E & FN Spon, London, pp. 1-66. [34] P. K. Mehta and P. J. M. Monteiro. Concrete, Microstructure, Properties, and Materials. McGraw-Hill. Third Edition. PP. 35. [35] M. Nishiyama. Mechanical Properties of Concrete and Reinforcement – State-of-the-art Report on HSC and HSS in Japan –. Journal of Advanced Concrete Technology Vol. 7, No. 2, pp. 157-182. 2009. [36] R. N. Swamy and H. Stavrides. Influence of Fiber Reinforcement on Restrained Shrinkage and Cracking. ACI Journal, Vol. 76, No. 3, pp. 443-460. 1979. [37] B. K. Paul, M. Polivka, and P. K. Mehta. Properties of Fiber Reinforced Shrinkage-Compensating Concrete. ACI Journal, Vol. 78, No. 6, pp. 488-492. 1981. [38] P. Balaguru and V. Ramakrishnan. Properties of Reinforced Concrete: Workability, Behavior under Long-Term Loading, and Air-Void Characteristics. ACI Journal, Vol. 85, No. 3, pp. 189-196. 1988. [39] A. M. Paillere, M. Buil, and J. J. Serrano. Effect of Fiber Addition on the Autogenous Shrinkage of Silica Fume Concrete. ACI Journal, Vol. 86, No. 2, pp. 139-144. 1989. [40] J. C. Chern and C. H. Young. Study of Factors Influencing Drying Shrinkage of Steel Fiber Reinforced Concrete. ACI Journal, Vol. 87, No.2, pp. 123-129. 1990. [41] M. Grzybowski and S. P. Shah. Shrinkage Cracking of Fiber Reinforced Concrete. ACI Journal, Vol. 87, No. 2, pp. 138-148. 1990. [42] Prediction of Creep, Shrinkage, and Temperature Effects in Concrete Structures. Reported by ACI Committee 209, 1997. [43] S. D. Kim, “Prediction of Long-Term Prestress Loss in Concrete Box Girder Bridges,” University of California, San Diege, 2009. [44] B. Persson. Shrinkage of Concrete. From book “Early Age Cracking in Cementitious,” published by RILEM Publications s.a.r.l., pp. 89-99. 2002. [45] A. Lecomte, N. Vulcano-Greullet, C. Steichen, G. Scharfe. 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Cusson and P. Paultre. High-Strength Concrete Columns Confined by Rectangular Ties. ASCE Journal of Structural Engineering, Vol. 120, No. 3, pp. 783-795. 1994. [58] M. Saatcioglu and S. R. Razvi. High-Strength Concrete Columns with Square Sections under Concentric Compression. ASCE Journal of Structural Engineering, Vol. 124, No. 12, pp. 1438-1447. 1998. [59] S. Pessiki and A. Pieroni. Axial Load Behavior of Large-Scale Spirally-Reinforced High-Strength Concrete Columns. ACI Structural Journal, Vol. 94,No. 3, pp. 304-313. 1997. [60] S. R. Razvi and M. Saatcioglu. Circular High-Strength Concrete Columns under Concentric Compression. ACI Structural Journal, Vol. 96, No. 5, pp. 817-825. 1999. [61] H. C. Lima Junior and J. S. Giongo. Steel-Fiber High-Strength Concrete Prisms Confined by Rectangular Ties under Concentric Compression. Materials and Structures, Vol. 37, pp. 689-697. 2004. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/64752 | - |
dc.description.abstract | 台灣地狹人稠,都市發展所需的土地資源取得不易,超高樓層建築物逐漸成為未來趨勢。但建築物高度愈高,中低樓層的柱構件也承受愈大的軸壓,若發展高強度混凝土為建築材料,一方面可以減小梁柱斷面的尺寸,增加建築物的使用空間;另一方面,由於建築材料用量減少,又能兼具節能減碳的優點。日本政府在西元1988年到1992年間推行五年期國家型計畫New RC Project,New RC Project主要目的為大幅提高鋼筋混凝土的建築材料的強度,混凝土強度從40MPa提升至120MPa以上,鋼筋降伏強度從420MPa增加至685MPa以上。截至西元2007年為止,日本已有超過500棟以上New RC建築物。
高強度混凝土是極為脆性的材料,位處環太平洋火山地震帶上的台灣而言,建築物梁柱的耐震性能極為重要,對於承受高軸壓的高強度鋼筋混凝土柱,必須提供更多的圍束箍筋才能使高強度鋼筋混凝土柱較具韌性行為,達到耐震的要求。另一方面,高強度鋼筋混凝土柱容易發生早期保護層剝落的現象,造成抗壓強度驟減,大大威脅使用者的安全。許多文獻顯示,藉由添加鋼纖維不僅可以有效預防早期保護層剝落,而且也可以增加高強度混凝土的韌性。 本研究主要探討高強度鋼纖維混凝土的力學性質與圍束效應,目的在了解高強度鋼纖維混凝土中鋼纖維添加量與韌性的關係,進而提出高強度鋼纖維混凝土的韌性的回歸公式,並與高強度鋼筋混凝土柱的箍筋所提供的圍束效能互相比較,以了解鋼纖維所提供的圍束力與箍筋所提供的圍束力的關係。此外,本研究也進行收縮的試驗,了解高強度鋼纖維混凝土的自體收縮與總乾燥收縮是否在合理範圍內。 | zh_TW |
dc.description.abstract | From 1988 to 1992, the Japanese government carried on a five-year national project, New RC Project, to substantially increase the strength of the construction materials of the reinforced concrete for high rise buildings. The concrete strength rises from 40 MPa to 120 MPa, and the yielding strength of steel bar rises from 420 MPa to 685 MPa. Up to 2007, Janpan already has more than 500 New RC buildings.
Due to brittleness of high strength concrete, much more confinement is needed to improve the ductility and satisfy seismic requirements for high strength reinforced column, particularly under high axial loading demands. Furthermore, early cover spalling trigs substantial compressive strength loss and thus sudden failure occurs. Many studies show that addition of steel fibers can not only effectively prevent the early cover spalling, but also increase the toughness and ductility of high-strength concrete. This study investigates the mechanical properties and confinement effect of high-strength steel fiber reinforced concrete. The objective is to understand the relationship between the toughness and the volume fraction of steel fibers of high-strength steel fiber reinforced concrete, and proposed the regressive formulation of the toughness of high strength steel fiber reinforced concrete. The confinement efficiency provided by steel fibers or stirrups is also proposed by the regressive formulation of the toughness. In addition, the shrinkage experiments, including measurement of autogenous shrinkage and total drying shrinkage, are conducted to verify the volume stability of high-strength steel fiber reinforced concrete. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T22:58:32Z (GMT). No. of bitstreams: 1 ntu-101-R99521202-1.pdf: 4313173 bytes, checksum: 7bb740a716a5c8a105812c86e2548538 (MD5) Previous issue date: 2012 | en |
dc.description.tableofcontents | 致謝 I
摘要 II Abstract III 目錄 V 標記 VIII 表目錄 X 圖目錄 XII 照片目錄 XV 第一章 緒論 1 1.1研究動機與目的 1 1.2研究範圍 1 第二章 文獻回顧 2 2.1 高強度鋼筋混凝土柱保護層剝落的機制 2 2.2 高強度鋼纖維混凝土的力學特性 2 2.2.1 鋼纖維對混凝土力學性質的影響 3 2.2.2名詞解釋與定義 4 2.2.3 抗壓強度與齡期的關係 5 2.2.4 彈性模數預測公式 5 2.3 鋼纖維的拉拔 7 2.3.1 端鉤形鋼纖維的拉拔機制 9 2.3.2 名詞解釋與定義 9 2.3.3 端鉤形鋼纖維拉拔能量的預測 10 2.4 箍筋與鋼纖維對高強度混凝土的圍束效應 14 2.4.1 高強度鋼筋混凝土柱的韌性 14 2.4.2 高強度鋼纖維混凝土試體的韌性 16 2.5 混凝土的收縮變形 18 2.5.1 塑性收縮 18 2.5.2 自體收縮 18 2.5.3 乾燥收縮 19 2.5.4 混凝土自體收縮與乾燥收縮的比例關係 19 2.5.5 鋼纖維對混凝土收縮的影響 19 2.5.6混凝土收縮的預測公式 20 第三章 試驗計劃 22 3.1 試驗背景 22 3.2 試驗流程 22 3.3 試驗配比 22 3.4 試驗材料 23 3.5 試驗儀器與設備 24 3.5.1試體製作部分 24 3.5.2 試驗部分 25 3.6 試驗項目與內容 26 3.6.1 拌合程序 26 3.6.2自體收縮與乾燥收縮試驗 27 3.6.3拉拔試驗 28 3.6.4抗壓試驗 29 第四章 實驗結果與討論 30 4.1 鋼纖維的拉拔實驗 30 4.2 高強度鋼纖維混凝土的抗壓實驗 31 4.2.1 最大抗壓應力 31 4.2.2 最大應變 32 4.2.3 彈性模數 32 4.2.4 柏松比 33 4.2.5 韌性 33 4.3 高強度鋼纖維混凝土的收縮實驗 33 4.3.1 高強度混凝土的收縮 33 4.3.2 高強度鋼纖維混凝土的收縮 34 4.3.3 高強度混凝土與各國收縮預測公式的比較 35 第五章 韌性回歸公式之驗證 36 5.1 高強度鋼筋混凝土的韌性的回歸公式 36 5.2 高強度鋼纖維混凝土的韌性比的回歸公式 39 5.3 高強度鋼纖維混凝土的韌性 41 5.4 高強度鋼筋混凝土柱添加鋼纖維的韌性 42 第六章 結論與建議 43 6.1 結論 43 6.2 建議 45 參考文獻 46 | |
dc.language.iso | zh-TW | |
dc.title | 高強度鋼纖維混凝土的力學性質與圍束效應之研究 | zh_TW |
dc.title | Study of the Mechanical Properties and Confinement Effect of High Strength Steel Fiber Reinforced Concrete | en |
dc.type | Thesis | |
dc.date.schoolyear | 100-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 黃世建,詹穎雯,劉楨業 | |
dc.subject.keyword | 高強度混凝土,抗壓,圍束,韌性,端鉤形鋼纖維,鋼纖維拉拔,應力-應變曲線,收縮, | zh_TW |
dc.subject.keyword | high-strength concrete,compression,confinement,ductility,hooked-end steel fiber,steel fiber pullout,stress-strain curves,shrinkage., | en |
dc.relation.page | 116 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2012-08-08 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 土木工程學研究所 | zh_TW |
顯示於系所單位: | 土木工程學系 |
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