簡易檢索 / 詳目顯示

回結果列表
研究生： 趙嘉盟
Sierra, Manuel Ramon Bermudez
論文名稱： 超高性能混合纖維混凝土梁：剪力行為
Ultra-High Performance Hybrid Fiber Reinforced Concrete Beams: Shear Behavior
指導教授： 洪崇展
Hung, Chung-Chan
學位類別： 碩士
Master
系所名稱： 工學院 - 土木工程學系
Department of Civil Engineering
論文出版年： 2018
畢業學年度： 106
語文別： 英文
論文頁數： 153
外文關鍵詞： Hybrid fibers, Ultra High Performance Fiber Reinforced Concrete, Synergy assessment, Shear behavior
相關次數： 點閱：93  下載：10 
分享至:
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

    • During the last three decades, many researchers have tried to improve concrete that has high strength. One of the methods is to use fibers to enhance several characteristics. This thesis reports the results of an experimental investigation of the shear behavior of beams using Ultra High Performance Hybrid Fiber Reinforced Concrete. A total of 24 beams reinforced with longitudinal steel bars and various combinations of hybrid fibers were tested in a four-point loading setup. Two different shear spans to depth ratio were used to evaluate the effect of the hybridization in the shear response of the member. By the presence of hybrid fibers the shear cracking stress, ultimate shear stress, and critical shear crack width were increased in the specimens compared to the monofiber beams. The combination of 0.75% short steel fiber with 0.75% long steel fiber obtained the same shear cracking stress than the specimens with 2.25% long steel fiber, which indicated that the hybrid specimen with less volume fraction could delay the appearance of cracking in the member. It was found that the adequate combination of different types of fibers could lead to hybrid with superior characteristics that enhance not only the shear behavior but could deal better with the crack pattern.

    ABSTRACT ................................ XII AKNOWLEDGEMENT .......................... XIII CHAPTER 1 ............................... 1 INTRODUCTION ............................ 1 CHAPTER 2 ............................... 3 LITERATURE REVIEW ....................... 3 2.1 Introduction ........................ 3 2.2 Hybrid Fibers ....................... 4 2.3 Synergy ............................. 6 2.4 Shear in Beams ...................... 10 2.5 UHPFRC ..................... ........ 13 CHAPTER 3 ............................... 15 EXPERIMENTAL METHODS .................... 15 3.1 Introduction ................... .... 15 3.2 Design of Beam Specimens ............ 15 3.2.1 Fixed parameters .................. 17 3.2.2 Experimental parameters ...... .... 25 3.3 Fabrication of Reinforcement Cage.... 28 3.4 Proportioning and Mixing of UHPFRC... 33 3.5 Instrumentation and Testing.......... 37 3.6 Material Testing and Properties ..... 42 3.6.1 Reinforcing bars .................. 42 3.6.2 UHPFRC compressive strength........ 43 3.6.3 UHPFRC direct tensile strength..... 45 3.6.4 UHPFRC splitting tensile strength................................. 49 CHAPTER 4 ............................... 51 RESULTS ................................. 51 4.1 Introduction ........................ 51 4.2 Behavior of Short Beams ............. 52 4.2.1 Beam B1.5-F0-N .................... 53 4.2.2 Beam B1.5-F075-N .................. 55 4.2.3 Beam B1.5-F150-N .................. 57 4.2.4 Beam S - 75PVA .................... 59 4.2.5 Beam S - 225PVA ................... 61 4.2.6 Beam S - 75LF ..................... 63 4.2.7 Beam S - 150LF .................... 65 4.2.8 Beam S - 225LF .................... 67 4.2.9 Beam S – 75SF+75LF ............... 69 4.2.10 Beam S – 150SF+75LF ............. 71 4.2.11 Beam S – 75SF+150LF ............. 73 4.2.12 Beam S – 75SF+75LF+75PVA ........ 75 4.3 Behavior of Long Beams .............. 77 4.3.1 Beam B3.3-F0-N .................... 78 4.3.2 Beam B3.3-F075-N .................. 80 4.3.3 Beam B3.3-F150-N .................. 82 4.3.4 Beam L – 75PVA ................... 84 4.3.5 Beam L – 225PVA .................. 86 4.3.6 Beam L – 75LF .................... 88 4.3.7 Beam L – 150LF ................... 90 4.3.8 Beam L – 225LF ................... 92 4.3.9 Beam L – 75SF+75LF................ 94 4.3.10 Beam L – 150SF+75LF.............. 97 4.3.11 Beam L – 75SF+150LF ............. 99 4.3.12 Beam L – 75SF+75LF+75PVA......... 102 CHAPTER 5 ............................... 104 DISCUSSION .............................. 104 5.1 Introduction ........................ 104 5.2 Overall Behavior of UHPFRC Beams..... 105 5.2.1 Shear Strain ...................... 105 5.2.2 Shear Strength and Normalized Shear Strength................................. 107 5.2.3 Failure Modes ..................... 120 5.2.3 Crack Patterns .................... 122 5.2.4 Horizontal Spacing of Inclined Cracks................................... 127 5.3 Influence of the Studied Parameters . 129 5.3.1 Effect of Fiber Type and Volume Fraction ................................ 129 5.3.2 Effect of the Shear Span to Effective Depth Ratio ................... 135 5.4 Synergy Assessment of the UHPFRC beams ................... ............... 138 CHAPTER 6 ................ .............. 140 CONCLUSIONS..................... ........ 140 REFERENCES ................... .......... 142 APPENDIX A ................. ............ 150

    ACI Committee 318. (2014). Building Code Requirements for Structural Concrete. American Concrete Institute, September .

    ACI Committee 544. (2008). Guide for Specifying, Proportioning, and Production of Fiber-Reinforced Concrete. American Concrete Institute.

    ACI-ASCE Committee 426. (1973). The Shear Strength of Reinforced Concrete Members. ACI Journadl Proceedings , 70 (7), 471-473.

    AFGC. (2013). Ultra high performance fibre-reinforced: Recommendations. France.

    Baby, F., Marchand, P., & Toutlemonde, F. (2014). Shear Behavior of Ultrahigh Performance Fiber-Reinforced Concrete Beams. I: Experimental Investigation. Journal of Structural Engineering, 140 (5), 11-1_11-10.

    Baby, F., Marchand, P., & Toutlemonde, F. (2014). Shear Behavior of Ultrahigh Performance Fiber-Reinforced Concrete Beams. II: Analysis and Design Provisions. Journal of Structural Engineeing, 140 (5), 12-1_12-11.

    Banthia , N., & Gupta, R. (2004). Hybrid fiber reinforced concrete (HyFRC): fiber synergy in high strength matrices. Materials and Structures, December Vol. 37, pp 707-716.

    Banthia, N., & Dubeau, S. (1994). Carbon and steel microfiber-reinforced cement-based composites for thin repairs. ASCE J Mater Civil Eng, 6 (1): 88-99.

    Banthia, N., Majdzadeh, F., Wu, J., & Bindiganavile, V. (2014). Fiber synergy in Hybrid Fiber Reinforced Concrete (HyFRC) in flexure and direct shear. Cement & Concrete Composites, 94-97.

    Bentur, A., & Mindess, S. (1990). Fibre Reinforced Cementitious Composites. London: Elsevier Applied Science.

    Blunt, J., & Ostertag, C. (2009). Performance-Based Approach for the Design of a Deflection Hardened Hybrid Fiber-Reinforced Concrete (Vol. 135 (9)). Journal of Engineering Mechanics.

    Dinh, H. (2009). Shear Behavior of Steel Fiber Reinforced Concrete Beams without stirrup reinforcement. PhD Dissertation, Department of Civil Engineering, University of Michigan.

    Fantilli, A., Kwon, S., Mihashi, H., & Nishiwaki, T. (2018). Synergy assessment in hybrid Ultra-High Performance Fiber-Reinforced Concrete (UHP-FRC). Cement and Concrete Composites, 19-29.

    Gabriel Jen, W. T. (2016). Self-consolidating hybrid fiber reinforced concrete: Development, properties and composite behavior. Construction and Building Materials, 104, 63-71.
    Hay, R., & Ostertag, C. (2014). Development and application of high performance green hybrid fiber-reinforced concrete (HP-G-HyFRC) for sustainable and energy-efficient buildings. Key Engineering Materials, Vol. 629-630, pp. 299-305.

    Hung, C.-C., & Chen, Y.-S. (2016). Innovative ECC Jacketing for Retrofitting Shear-Deficient RC Members. Construction & Building Materials, 111, pp. 408-418.

    Hung, C.-C., & Chueh, C.-Y. (2016). Cyclic Behavior of UHPFRC Flexural Members Reinforced with High-Strength Steel Rebar. Engineering Structures, 122, pp.108-120.

    Hung, C.-C., & El-Tawil, S. (2010). Hybrid Rotating/Fixed-Crack Model for High Performance Fiber Reinforced Cementitious Composites. ACI Materials Journal, 107(6), p569-577.

    Hung, C.-C., & El-Tawil, S. (2011). Seismic Behavior of a Coupled Wall System with HPFRC Materials in Critical Regions. ASCE Journal of Structural Engineering ASCE, 137(12), pp.1499-1507.

    Hung, C.-C., & Hu, F.-Y. (2018). Behavior of high-strength concrete slender columns strengthened with steel fibers under concentric axial loading. Construction & Building Materials , 175, pp. 422-433.

    Hung, C.-C., & Li, S.-H. (2013). Three-dimensional Model for Analysis of High Performance Fiber Reinforced Cement-based Composites. Composites Part B: Engineering, 45, pp.1441-1447.

    Hung, C.-C., & Su, Y.-F. (2013). On Modeling Coupling Beams Incorporating Strain-hardening Cement-based Composites. Computers and Concrete, 12(4), pp.243-259.

    Hung, C.-C., & Su, Y.-F. (2016). Medium-term self-healing evaluation of Engineered Cementitious Composites with varying amounts of fly ash and exposure durations. Construction & Building Materials, 118, pp. 194-203.

    Hung, C.-C., & Yau, W.-G. (2017). Vulnerability Evaluation of Scoured Bridges under Floods. Engineering Structures, 132, pp.288-299.

    Hung, C.-C., & Yen., W.-M. (2014). xperimental evaluation of ductile fiber reinforced cement-based composite beams incorporating shape memory alloy bars. Procedia Engineering, 79, pp.506-512.

    Hung, C.-C., Hu, F.-Y., & Yen, C.-H. (2018). Behavior of Slender UHPC Columns under Eccentric Loading. Engineering Structures, 174, pp.701-711.

    Hung, C.-C., Li, H., & Chen, H.-C. (2017). Chen. High-strength Steel Reinforced Squat UHPFRC Shear Walls: Cyclic Behavior and Design Implications. Engineering Structures, 141, pp.59-74.

    Hung, C.-C., Su, Y.-F., & Hung, H.-H. (2017). mpact of natural weathering on medium-term self-healing performance of fiber reinforced cementitious composites with intrinsic crack-width control capability. Cement and Concrete Composites , 80, pp.200-209.

    Hung, C.-C., Su, Y.-F., & Su, Y.-M. (2018). Mechanical properties and self-healing evaluation of strain-hardening cementitious composites with high volumes of hybrid pozzolan materials. Composites Part B: Engineering, 133, pp. 15-25.

    Hung, C.-C., Su, Y.-F., & Yu, K.-H. (2013). Modeling the Shear Hysteretic Response for High Performance Fiber Reinforced Cementitious Composites. Construction and Building Materials, 41, pp.37-48.

    Hung, C.-C., Yen, W.-M., & Yu, K.-H. (March 2016). Vulnerability and Improvement of Reinforced ECC Flexural Members under Displacement Reversals: Experimental Investigation and Computational Analysis. Construction & Building Materials, 107, pp.287-298.

    Juárez , C., Valdez, P., & Dura, A. ( 2007). The diagonal tension behavior of fiber reinforced concrete beams. Cement & Concrete Composites , 29, pp. 402–408.

    Khuntia, M., & Stojadinovic, B. (2011). Shear Strength of Reinforced Concrete Beams without Transverse Reinforcment. ACI Structural Journal, September, pp. 648-656.
    Kobayashi, K., & Cho, R. (1982). Flexural characteristics of steel fibre and polyethylene fibre hybrid - reinforced concrete. Composites, Vol. 13, pp. 164-168.

    Kwak, Y.-K., Eberhard, M., & Kim, W.-S. (July/August 2002). Shear Strength of Steel Fiber-Reinforced Concrete Beams without stirrups. ACI Structural Journal, pp. 530-538.

    Lampropoulos, A., Paschalis, S., Tsioulou, O., & Dritsos, S. (2016). Strengthening of reinforced concrete beams using ultra high performance fibre reinforced concrete (UHPFRC). Engineering Structures, 370-384.

    Lawler, J., Zampini, D., & Shah, S. (2005). Microfiber and Macrofiber Hybrid Fiber-Reinforced Concrete. Jornal of Materials in Civil Engineering, 595-604.

    Lim, W.-Y., & Hong, S.-G. (2016). Shear Tests for Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) Beams with Shear Reinforcement. International Journal of Concrete Structures and Materials, April 26.

    Northern Digital Inc. (2014). OptoTRAK Certus User Guide.

    Oesterle, R., Fiorato, A., Johal, L., Carpenter, J., Russell, H., & Corley, W. (November 1976,). Earthquake-Resistant Structural Walls-Test of Isolated Walls. PCA Construction Technology Laboratories/National Science Foundation, Washington, D.C., 315 pp. (available as PB 27-14670 from National Technical Information.
    R. Yu, P. S. (2015). Development of Ultra-High Performance Fibre Reinforced Concrete (UHPFRC): Towards an efficient utilization of binders and fibres. Construction and Building Materials, January, 273-282.

    Rafeeqi , S., & Ayub, T. (2013). Behaviour of Reinforced Concrete Beams Detailed for Shear in complaince with compressive force path method. Ned University Journal of Research - Structural Mechanics, Vol. X, No. 1, pp. 13-30.

    Sittipunt, C., & Wood, S. (November-December 1995,). Influence of Web Reinforcement on the Cyclic Response of Structural Walls. ACI Structural Journal, Vol. 92, No. 6, pp. 1-12.

    Susetyo, J., Gauvreau, P., & Vecchio, F. (2011). Effectiveness of steel fibers as minumum shear reinforcement. ACI Structural Journal, July-August, pp. 488-496.

    Toutlemonde, F., & Resplendino, J. (2013). Designing and Building with UHPFRC. France: Wiley.

    Wasan, I., & Tayfur, Y. (2013). Flexural Strength of Fibrous Ultra High Performance Reinforced Concrete Beams. ARPN Journal of Engineering and Applied Sciences, Vol. 8, No.3, 200-214.

    Wen, K. (2018). Shear Behavior of Ultra High Performance Fiber Reinforced Concrete Beam. Master Thesis, Department of Civil Engineering, National Cheng Kung University, Taiwan.

    Wight, J., & MacGregor, J. (2012). Reinforced Concrete Mechanics and Design. England: Pearson.

    Yao, W., Li, J., & Wu, K. (2003). Mechanical properties of hybrid fiber-reinforced concrete at low fiber volume fraction. Cement and Concrete Research, Vol. 33 pp 27-30.

    Yoo, D.-Y., & Yoon, Y.-S. (Vol.10, No.2, pp.125–142). A Review on Structural Behavior, Design, and Application of Ultra-High-Performance Fiber-Reinforced Concrete. International Journal of Concrete Structures and Materials, June 2016.

    Zakaria, M., Ueda, T., Wu, Z., & Meng, L. (2009). Experimental Investigation on shear Cracking Behavior in Reinforced Concrete Beams with Shear Reinforcment. Journal of Advanced Concrete Technology, Vol. 7, No. 1, 79-96.

    下載圖示 校內：2020-12-31公開
    校外：2021-12-31公開
    QR CODE