對角線鋼筋混凝土連接梁在不同剪力需求與跨深比之往復載重行為

簡易檢索 / 詳目顯示

回結果列表

研究生：	曾泓瑜 Hung-Yu Zeng
論文名稱：	對角線鋼筋混凝土連接梁在不同剪力需求與跨深比之往復載重行為 Cyclic Behavior of Diagonally Reinforced Concrete Coupling Beam with Different Shear Demand and Aspect Ratio
指導教授：	鄭敏元 Min-Yuan Cheng
口試委員:	邱建國 Chien-Kuo Chiu 黃世建 Shyh-Jiann Hwang 鄭敏元 Min-Yuan Cheng
學位類別：	碩士 Master
系所名稱：	工程學院 - 營建工程系 Department of Civil and Construction Engineering
論文出版年：	2018
畢業學年度：	106
語文別：	中文
論文頁數：	155
中文關鍵詞：	對角線、鋼筋混凝土連接梁、剪力需求、跨深比
外文關鍵詞：	diagonal, reinforced concrete coupling beam, shear demand, aspect ratio
相關次數：	點閱：181 下載：23
分享至:	分享至facebook 分享至twitter

查詢本校圖書館目錄查詢臺灣博碩士論文知識加值系統勘誤回報

偶合剪力牆系統是一種經濟且高效率之抗側力系統，但連接梁須在大變形量下維持其設計強度，過去實驗證實配置對角線鋼筋可以增加低跨深比連接梁變形能力，但其強度與變形能力評估模型目前仍存在許多爭議，本研究計畫有系統的規劃一系列試體，期望透過實驗結果能提供此領域更多參考資訊。

本試驗總共測試六組連接梁試體，測試變數包含(1)試體跨深比(ln/h )；(2)試體設計剪應力需求；(3)對角線鋼筋號數。試驗結果顯示所有試體在破壞前均達標稱撓曲強度，以現行規範ACI 318-14(ACI Committee 318, 2014)剪力模型嚴重低估試體所剪力強度。試體極限層間變位角(du)似乎隨著試體跨深比增加而有增加的趨勢，而試體設計剪應力大小與鋼筋號數似乎對極限層間變位角(du)影響並不顯著。

Reinforced concrete (RC) coupled shear wall system is an economical and efficient lateral-force-resisting system. To maintain its force-resisting mechanism, coupling beams are expected to sustain the design force under large deformation. Previous researches have shown that deformation capacity of the RC coupling beams with low aspect ratio can be increased by using diagonally reinforcement. However, existing researches also show that prediction models of strength and deformation capacity are still not that clear. In this research, a test program is proposed to provide more information in this area.

A total of six diagonally reinforced coupling beam specimens were tested under lateral displacement reversals. Primary test parameters include :1) specimen aspect ratio, 2) specimen design shear demand, and 3) size of diagonal reinforcement. Test results indicate that all specimens achieved nominal flexural strength before failure. The strength prediction model per ACI 318-14 significantly underestimates the specimen peak strength. Specimen deformation, on the other hand, appears to increase as the specimen aspect ratio increases. Specimen deformation appears to be not sensitive to the specimen design shear demand and size of diagonal reinforcement.

致謝    III
摘要    IV
Abstract    V
目錄    VI
圖目錄    IX
表目錄    XII

第一章 緒論    1
1.1研究動機    1
1.2 研究目的    3
1.3 研究方法    4
1.4 研究內容架構    4

第二章 文獻回顧    5
2.1 連接梁對角線鋼筋發展    5
2.1.1 Paulay (1969)    5
2.1.2 Paulay and Binny (1974)    5
2.1.3 Barney等學者 (1980)    7
2.1.4 Tassios 等學者 (1996)    8
2.1.5 Galano and Vignoli (2000)    10
2.1.6 Canbolat等學者 (2005)    10
2.1.7鄭志宏 (2010)    11
2.2 現行ACI 318-14規範規定    13
2.3剪力強度預測模型    14
2.3.1 Paulay and Binny (1974)    14
2.3.2 簡化軟化拉壓桿模型 (Hwang 與Lee, 1999；Hwang 與Lee, 2002；Hwang 等學者, 2017)    14

第三章 試體規劃    19
3.1 試體設計    19
3.2 試體尺寸與配筋    22
3.2.1 連接梁試體    22
3.2.2 頂部混凝土塊    38
3.2.3 底部混凝土塊    39
3.3 試體製作    40
3.3.1 鋼筋應變計    40
3.3.2 試體底部施工    41
3.3.3 梁身與頂部混凝土塊施工    42
3.3.4 施工困難與妥協    44
3.4 試驗配置    46
3.5 試驗量測裝置    49
3.5.1 鋼筋應變量測    49
3.5.2 外部位移量測    52
3.5.3 外部變形量量測    53

第四章 試驗結果分析    55
4.1材料試驗結果    55
4.1.1混凝土    55
4.1.2鋼筋    57
4.2 試體測試結果    61
4.2.1 裂縫觀察與破壞模式    61
    試體D1.5_L    70
    試體D1.5_H1    71
    試體D1.5_H2    72
    試體D2.5_L    73
    試體D2.5_H    74
    試體D3.5_L    75
4.2.2 力量-位移曲線    76
4.2.3 應變計    84
4.3結果討論    100
4.3.1 強度    100
4.3.2 變形量    101
第五章 結論    103

參考文獻    105
附錄A 剪力牆與連接梁轉角關係範例    109
附錄B 各試體測試過程    111
試體D1.5_L：    111
試體D1.5_H1：    117
試體D1.5_H2：    123
試體D2.5_L：    129
試體D2.5_H：    137
試體D3.5_L：    145
                                

ACI Committee 318, 2008, “Building Code Requirements for Structural Concrete and Commentary (ACI 318-08),” American Concrete Institute, Farmington Hills, 473 pp.

ACI Committee 318, 2014, “Building Code Requirements for Structural Concrete and Commentary (ACI 318-14),” American Concrete Institute, Farmington Hills, Michigan, 519 pp.

ASTM A370-17, 2017, “Standard Test Methods and Definitions for Mechanical Testing of Steel Products,” ASTM International, West Conshohocken, Pennsylvania, 49 pp.

Barney, G. B.; Shiu, K. N.; Rabbat, B. G.; Fiorato, A. E.; Russel, H. G.; and Corley, W. G., 1980, “Behavior of Coupling Beams Under Load Reversals,” Research and Development Bulletin, Portland Cement Association, Skokie, Illinois, 25 pp.

Canbolat, B. A., Parra-Montesinos, G. J., and Wight, J. K., 2005, “Experimental Study on Seismic Behavior of High-Performance Fiber-Reinforced Cement Composite Coupling Beams,” ACI Structural Journal, V. 102, No. 1, Jan.-Feb., pp. 159-166.

Galano, L., and Vignoli, A., 2000, “Seismic Behavior of Short Coupling Beams with Different Reinforcement Layouts,” ACI Structural Journal, V. 97, No. 6, Nov.-Dec., pp. 876-885.

Hwang, S. J., and Lee, H. J., 1999, “Analytical Model for Predicting Shear Strengths of Exterior Reinforced Concrete Beam-Column Joints for Seismic Resistance,” ACI 62 Structural Journal, Vol. 96, No. 5, pp. 846-858.

Hwang, S. J., and Lee, H. J., 2002, “Strength Prediction for Discontinuity Regions by Softened Strut and Tie Model,” Journal of Structural Engineering, ASCE, V. 128, No. 12, Dec., pp. 1519-1526.

Hwang, S. J.; Tsai, R. J.; Lam W. K.; and Moehle, J. P., 2017, “Simplification of Softened Strut-and-Tie Model for Strength Prediction of Discontinuity Regions,” ACI Structural Journal, V. 114, No. 5, Sep.- Oct., pp. 1239-1248.

James K.Wight, 2011, “Reinforced Concrete Mechanics and Design,” 7th Edition

M-.Y Cheng, Fikri, C.-C. Chen, 2015, “Experimental Study of Reinforced Concrete and Hybrid Coupled Shear Wall System,” Engineering Structure, pp.214-255.

Parra-Montesinos, G. J. Wight, J. K., and Setkit, M. (2010). “Earthquake-Resistant Coupling Beams without Diagonal Reinforcement,” Concrete International, pp.36-40.

Paulay, T., 1969, “The Coupling of Shear Walls,” PhD Dissertation, University of Canterbury, Christchurch, New Zealand, 435 pp.

Paulay, T., and Binney, J. R., 1974, “Diagonally Reinforced Coupling Beams of Shear Walls,” Shear in Reinforced Concrete, SP-42, American Concrete Institute, Detroit, Mich., Jan., pp. 579-598.

Tassios, T. P.; Moretti M.; and Bezas A., 1996, “On the Behavior and Ductility of Reinforced Concrete Coupling Beams of Shear Walls,” ACI Structural Journal, V. 93, No. 6, Nov.-Dec., pp. 711-720.

X. D. Ji, D. Liu, and Y. Sun, 2016, “Seismic performance assessment of a hybrid coupled wall system with replaceable steel coupling beams versus traditional RC coupling beams, ” Earthquake Engineering & Structural Dynamics, pp.517-535.

鄭志宏，2010，「鋼筋混凝土剪力連接梁反覆載重測試之研究」，碩士論文，國立台灣大學土木工程系，台北。

簡易檢索 / 詳目顯示

相關論文