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Flexural Behavior of Reinforced HPFRCC Beams | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 6، دوره 1، شماره 1، اردیبهشت 2013، صفحه 66-77 اصل مقاله (939.31 K) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2013.6 | ||
| نویسندگان | ||
| A. Hemmati* 1؛ A. Kheyroddin2؛ M.K. Sharbatdar3 | ||
| 1Ph.D. Student, Civil Engineering Faculty, Semnan University, Semnan, Iran | ||
| 2Professor, Civil Engineering Faculty, Semnan University, Semnan, Iran | ||
| 3Associate Professor, Civil Engineering Faculty, Semnan University, Semnan, Iran | ||
| تاریخ دریافت: 14 مهر 1391، تاریخ بازنگری: 07 دی 1391، تاریخ پذیرش: 20 دی 1391 | ||
| چکیده | ||
| High Performance Fiber Reinforced Cementitious Composite (HPFRCC) materials exhibit strain hardening behavior with multiple cracking under tensile loading. In this paper, experimental and parametric studies are performed to assess the influence of using HPFRCC material instead of normal concrete in reinforced concrete beams. After calibrating the experimental results, the analytical results including ductility and plastic hinge characteristics for simply supported beams with different values of compressive strengths are presented and compared with each other and also with the experimental data, where available. The analytical and experimental results indicate that using HPFRCC material instead of normal concrete in RC beams concluded to an increase in ultimate load, deflection, ductility ratio, plastic hinge length and rotation capacity compared to RC beams. In RH beam, fibers act as extra steel reinforcements and high ductility of this beam is attained by existence of this fibers and bridging mechanism of them which prevent the crushing of compressive HPFRCC material. | ||
| کلیدواژه‌ها | ||
| Finite element؛ Plastic Hinge؛ Reinforced Concrete؛ Rotation Capacity | ||
| مراجع | ||
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[1] Li, V.C., Wu, H.C. (1992). “Conditions for pseudo strain-hardening in fiber reinforced brittle matrix composites”. J. Applied Mechanics Review, Vol. 45, pp. 390-398. [2] Naaman, A.E., Reinhardt, H.W. (1996). “Characterization of high performance fiber reinforced cement composites”. HPFRCC-2, pp. 1-24. [3] Fantilli, A.P., Mihashi, H., Vallini, P. (2007). “Crack profile in RC, R/FRCC and R/HPFRCC members in tension”. Materials and Structures, Vol. 40, No. 10, pp. 1099-1114. [4] Naaman, A.E., Reinhardt, H.W. (2006). “Proposed classification of HPFRC composites based on their tensile response”. Materials and Structures, Vol. 39, No. 5, pp. 547-555. [5] Maalej, M., Li, V.C. (1995). “Introduction of strain hardening engineered cementitious composites in design of reinforced concrete flexural members for improved durability”. ACI Structural Journal, Vol. 92, No. 2. [6] Maalej, M., Ahmed, S.F.U., Paramasivam, P. (2002). “Corrosion durability and structural response of functionally-graded concrete beams”. JCI International workshop on ductile fiber reinforced Cementitious composites (DFRCC), Application and Evaluation, Japan, pp. 161-170. [7] Kabele, P., Horii, H. (1996). “Analytical model for fracture behaviors of pseudo strain-hardening cementitious composites”. Journal of Materials, Concrete Structures and Pavements, Vol. 30, pp. 208-219. [8] Kabele, P. (2000). “Assessment of structural performance of engineered cementitious composites by computer simulation”. Habilitation Thesis, Csech Technical University in Prague, pp. 46- 50. [9] Sirijaroonchai, K. (2009). “A macro-scale plasticity model for high performance fiber reinforced cement composites”. PhD Dissertation, Michigan University. [10] Gencturk, B., Elnashai, A.S. (2009). “Analytical modeling of engineered cementitious composite members”. The Asian-Pacific Network of Centers for Earthquake Engineering Research (ANCER) Workshop, University of Illinois. [11] ABAQUS Manual. (2008). “Getting started with ABAQUS”. [12] Li, J., Zhang, Y.X. (2011). “Evolution and calibration of a numerical model for modeling of hybrid-fiber ECC panels under high-velocity impact”. Composite Structures, Vol. 93, pp. 2714-2722. [13] Kesner, K.E., Billington, S.L. (2004). “Tension, compression and cyclic testing of engineered cementitious composite materials”. Technical report MCEER-04-0002. [14] Gencturk, B., Elnashai, A.S. (2012). “Numerical modeling and analysis of ECC structures”. Materials and Structures, pp. 1-20. | ||
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