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The Effect of Opening on Stiffness and Strength of Infilled Steel Frames | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 7، دوره 4، شماره 1 - شماره پیاپی 7، اردیبهشت 2016، صفحه 78-90 اصل مقاله (1.44 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2016.494 | ||
| نویسندگان | ||
| Mostafa Abbasnejadfard* 1؛ Masood Farzam2 | ||
| 1M.Sc., Structural Engineering, University of Tabriz, Tabriz, Iran | ||
| 2Assistant Professor, University of Tabriz, Tabriz, Iran | ||
| تاریخ دریافت: 10 مهر 1395، تاریخ بازنگری: 27 آبان 1395، تاریخ پذیرش: 27 آبان 1395 | ||
| چکیده | ||
| Infilled walls are the major non-structural elements which have significant effects on the seismic behavior of structures. The shape and strength of the brick elements are the main parameters affect the strength of the walls. In addition existence of openings may have a reduction effect. To increase the strength of the wall and to improve its behavior, the borders of the openings may be strengthened. In this paper, a one-story one-bay infilled steel frame which have been experimentally tested is modeled numerically and analyzed by commercial software ATENA. The wall was made of hollow clay tiles and cement mortar. The infilled frame was modeled under monotonically increasing loads until the failure. The numerical model is verified by comparing the cracking shape and the load-drift curves of the experimental and numerical models. Based on this numerical model, investigations on the effect of openings with different size and locations on the in-plane behavior of the walls are conducted. The effect of the strengthening of opening borders is probed additionally. Observations showed that the effect of openings is negligible for the opening with less than 10% area of the wall. In other cases, the lateral strength of the infilled frame reduced by 20-80% based on the size and location of the openings. The strengthening of all borders of openings with L-shaped steel angels can improve the behavior. The arrangement of these border elements may be changed to show better performance. | ||
| کلیدواژهها | ||
| Infill؛ Opening؛ ATENA؛ L-shaped strengthening؛ Hollow clay tile | ||
| مراجع | ||
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[1] Khanmohammadi, M., Farvili, A. (2011). “Experimental and analytical assessment of performance criteria for partition walls of ordinary buildings.” M.Sc. Dissertation, University of Tehran, Tehran, Iran [in Farsi]. [2] Mohammadi, M., Nikfar, F. (2012). “Strength and stiffness of masonry-infilled frames with central openings based on experimental results.” Journal of Structural Engineering, Vol. 139(6), pp. 974-984. [3] Tasnimi, A. A., Mohebkhah, A. (2011). “Investigation on the behavior of brick-infilled steel frames with openings, experimental and analytical approaches.” Engineering Structures, Vol. 33(3), pp. 968-980. [4] Moghaddam, H. A. (2004). “Lateral load behavior of masonry infilled steel frames with repair and retrofit.” Journal of structural engineering, Vol. 130(1), pp. 56-63. [5] Moghadam, H. A., Mohammadi, M. G., Ghaemian, M. (2006). “Experimental and analytical investigation into crack strength determination of infilled steel frames.” Journal of Constructional Steel Research, Vol. 62(12), pp. 1341-1352. [6] Doudoumis, I. N. (2007). “Finite element modeling and investigation of the behavior of elastic infilled frames under monotonic loading.” Engineering Structures, Vol 29(6), pp. 1004-1024. [7] Koutromanos, I., Stavridis, A., Shing, P. B., Willam, K. (2011). “Numerical modeling of masonry-infilled RC frames subjected to seismic loads.” Computers & Structures, Vol. 89(11), pp. 1026-1037. [8] Markulak, D., Radić, I., Sigmund, V. (2013). “Cyclic testing of single bay steel frames with various types of masonry infill.” Engineering Structures, Vol. 51, pp. 267-277. [9] Jazany, R. A., Hajirasouliha, I., Farshchi, H. (2013). “Influence of masonry infill on the seismic performance of concentrically braced frames.” Journal of Constructional Steel Research, Vol 88, pp.150-163. [10] Fiore, A., Netti, A., Monaco, P. (2012). “The influence of masonry infill on the seismic behavior of RC frame buildings.” Engineering Structures, Vol 44 pp. 133-145. [11] Mosalam KM, White RN, Gergely P. (1997). Static response of infilled frames using quasi-static experimentation1997. Journal of Structural Engineering, Vol. 123(11), pp. 1462–4196. [12] Al-Chaar, G., Lamb, G. E., Issa, M. A. (2003). “Effect of Openings on Structural Performance of Unreinforced Masonry Infilled Frames.” ACI Special Publication, Vol. 211, pp. 247-262. [13] Liu, Y., Manesh, P. (2013). “Concrete masonry infilled steel frames subjected to combined in-plane lateral and axial loading–Engineering Structures, Vol. 52, pp. 331-339. [14] Kakaletsis, D., Karayannis, C. G. (2007). “Experimental investigation of infilled R/C frames with eccentric openings.” Structural Engineering and Mechanics, Vol 26(3), pp. 231-250. [15] Kakaletsis, D. J., Karayannis, C. G. (2009). “Experimental investigation of infilled reinforced concrete frames with openings.” ACI Structural Journal, Vol, 106(2) pp. 132-141. [16] Chen, X., Liu, Y. (2015). “Numerical study of in-plane behavior and strength of concrete masonry infills with openings.” Engineering Structures, Vol 82, pp. 226-235. [17] Mallick, D. V., Garg, R. P. (1971). “Effect of openings on the lateral stiffness of infilled frames.” Proceedings of the Institution of Civil Engineers, Vol. 49(2), pp.193-209. [18] Cervenka, V., Cervenka, J., Pukl, R. (2002). “ATENA—a tool for engineering analysis of fracture in concrete.” Sadhana, Vol. 27(4), pp. 485-492. [19] Cervenka, V., Jendele, L., Cervenka, J. (2007). “Atena theory.” Praha, Czech Republic. [20] Kupfer, H., Hilsdorf, H. K., & Rusch, H. (1969). “Behavior of concrete under biaxial stresses.” Journal Proceedings, Vol. 66, No. 8, pp. 656-666. [21] Hordijk, D.A. (1991). “Local Approach to Fatigue of Concrete.” TU Delft, Delft University of Technology, Delft, Netherlands. [22] Mohebkhah, A., Tasnimi, A. A., Moghadam, H. A. (2008). “Nonlinear analysis of masonry-infilled steel frames with openings using discrete element method.” Journal of constructional steel research, Vol. 64(12), pp. 1463-1472. [23] American Society of Civil Engineers, & United States. Federal Emergency Management Agency. (2000). “Global topics report on the prestandard and commentary for the seismic rehabilitation of buildings.” The Agency. Washington DC, United States of America. | ||
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