پیوندهای مفید
آمار
| تعداد نشریات | 21 |
| تعداد شماره‌ها | 641 |
| تعداد مقالات | 9,358 |
| تعداد مشاهده مقاله | 68,012,693 |
| تعداد دریافت فایل اصل مقاله | 28,111,439 |
Study of unreinforced masonry elements strengthened with engineered cementitious composites under impact loading | ||
| International Journal of Nonlinear Analysis and Applications | ||
| مقاله 23، دوره 15، شماره 6، شهریور 2024، صفحه 263-278 اصل مقاله (1.53 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2023.30997.4537 | ||
| نویسندگان | ||
| Seyedmohammad Amini1؛ Alireza Mirjalili* 2؛ Mohammadreza Javaheri3 | ||
| 1Department of Civil Engineering, Taft Branch, Islamic Azad University, Yazd, Iran | ||
| 2Department of Civil Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran | ||
| 3Department of Civil engineering, Taft Branch, Islamic Azad University, Yazd, Iran | ||
| تاریخ دریافت: 06 فروردین 1402، تاریخ بازنگری: 23 خرداد 1402، تاریخ پذیرش: 30 خرداد 1402 | ||
| چکیده | ||
| Given the brittle behavior and low flexibility of unreinforced masonry walls, using flexible fiber-reinforced concretes, such as engineered cementitious composites (ECCs), to retrofit them is of great importance. In this regard, the performance of these materials (as a reinforcement layer of unreinforced masonry walls) in improving their behavior (flexibility and strength) against dynamic loads, especially impact loads, should be taken into account. The present study evaluates and compares the vertical middle displacement, energy, and distribution of plastic strains in unreinforced masonry materials, under two conditions, i.e., non-retrofitted and retrofitted with a one-side cover (in the lower surface of the specimen) or two-side cover of ECC layers under dynamic impact loading, through nonlinear dynamic impact analysis. The ECC reinforcement layers in two-side covers were investigated by changing their location (in the middle or edges of the lower surfaces of the specimen), connection type (disconnection or full connection) of the one-side cover of the bottom of the specimen with the ECC reinforcement layer and elastic modulus (from 15 GPa to 22.5 GPa). The retrofitting of the unreinforced masonry materials with ECC layers (especially with two-side cover) improved their behavior against out-plane impact loads, dissipated energy, and reduced the plastic strains and cracks. | ||
| کلیدواژه‌ها | ||
| Unreinforced masonry wall؛ engineered cementitious composite (ECC)؛ reinforcement layer؛ out of plane impact load؛ finite element method؛ Abaqus software | ||
| مراجع | ||
|
[1] K. Bergi, Dynamics of structures, Tehran, Tehran University Publications, 2012. [2] B. Borah, V. Singhal and H.B. Kaushik, Sustainable housing using confined masonry buildings, SN Appl. Sci. 1 (2019), no. 9, 1–7. [3] G. Cai, Q. Su, K.D. Tsavdaridis and H. Deg´ee, Simplified density indexes of walls and tie-columns for confined masonry buildings in seismic zones, J. Earthquake Eng. 24 (2020), no. 3, 447–469. [4] M. Deng and S. Yang, Cyclic testing of unreinforced masonry walls retrofitted with engineered cementitious composites, Construct. Build. Mater. 177 (2018), 395–408. [5] M. Deng and S. Yang, Experimental and numerical evaluation of confined masonry walls retrofitted with engineered cementitious composites, Engin. Struct. 207 (2020), 110249. [6] D. Dizhur, J. Ingham, L. Moon, M. Griffith, A. Schultz, I. Senaldi, G. Magenes, J. Dickie, S. Lissel and J. Centeno, Performance of masonry buildings and churches in the 22 February 2011 Christchurch earthquake, Bull. New Zealand Soc. Earthquake Eng. 44 (2011), no. 4, 279–296. [7] D.C. Drucker and W. Prager, Soil mechanics and plastic analysis or limit design, Quart. Appl. Math. 10 (1952), no. 2, 157–165. [8] M. Endait and S. Kolhe, Experimental investigation of engineered cementitious composites (ECC) retrofitted masonry structures, SN Appl. Sci. 2 (2020), no. 3, 1–11. [9] D.C. Kent and R. Park, Flexural members with confined concrete, J. Struct. Div. 97 (1971), no. 7, 1969–1990. [10] Y.Y. Kim, H.-J. Kong and V.C. Li, Design of engineered cementitious composite suitable for wet-mixture shotcreting, Mater. J. 100 (2003), no. 6, 511–518. [11] M. Li and V.C. Li, Behavior of ECC/concrete layer repair system under drying shrinkage conditions, Restorat. Build. Monum. 12 (2006), no. 2, 143–160. [12] V.C. Li, D.K. Mishra, A.E. Naaman, J.K. Wight, J.M. LaFave, H.-C. Wu and Y. Inada, On the shear behavior of engineered cementitious composites, Adv. Cement Based Mater. 1 (1994), no. 3, 142–149. [13] Y.-W. Lin, L. Wotherspoon, A. Scott and J.M. Ingham, In-plane strengthening of clay brick unreinforced masonry wallettes using ECC shotcrete, Engin. Struct. 66 (2014), 57–65. [14] J. Lubliner, J. Oliver, S. Oller and E. O˜nate, A plastic-damage model for concrete, Int. J. Solids Struct. 25 (1989), no. 3, 299–326. [15] N. Lundgren, M. Ekevad and J. Flodin, ABAQUS analysis users’ manual ABAQUS analysis users’ manual, 2007, J. Wood Sci. 57 (2011), no. 2, 94–99. [16] M. Maalej, V. Lin, M. Nguyen and S. Quek, Engineered cementitious composites for effective strengthening of unreinforced masonry walls, Engin. Struct. 32 (2010), no. 8, 2432–2439. [17] M. Maalej, S.T. Quek and J. Zhang, Behavior of hybrid-fiber engineered cementitious composites subjected to dynamic tensile loading and projectile impact, J. Mater. Civil Engin. 17 (2005), no. 2, 143–152. [18] G. Magenes and G.M. Calvi, In-plane seismic response of brick masonry walls, Earthquake Engin.Struct. Dyn. 26 (1997), no. 11, 1091–1112. [19] M. Najafgholipour, S. Dehghan and A. Kamrava, In-plane shear behavior of masonry walls strengthened with steel fiber-reinforced concrete overlay, Asian J. Civil Eng. 19 (2018), no. 5, 553–570. [20] A.N. Niasar, F.J. Alaee and S.M. Zamani, Experimental investigation on the performance of unreinforced masonry wall, retrofitted using engineered cementitious composites, Construct. Build. Mater. 239 (2020), 117788. [21] C.G. Papanicolaou, T.C. Triantafillou, K. Karlos and M. Papathanasiou, Textile-reinforced mortar (TRM) versus FRP as strengthening material of URM walls: In-plane cyclic loading, Mater. Struct. 40 (2007), no. 10, 1081–1097. [22] C. Papanicolaou, T. Triantafillou and M. Lekka, Externally bonded grids as strengthening and seismic retrofitting materials of masonry panels, Construct. Build. Mater. 25 (2011), no. 2, 504–514. [23] S.-H. Park, N.H. Dinh, S.-H. Kim, J.-W. Hwang, H.H. Pham, S.-J. Lee and K.-K. Choi, Seismic retrofit of unreinforced masonry walls using precast panels of fiber-reinforced cementitious composite, J. Build. Eng. 53 (2022), 104548. [24] R. Park and T. Paulay, Reinforced Concrete Structures, John Wiley & Sons, 1975. [25] S. Pourfalah, D.M. Cotsovos and B. Suryanto, Modelling the out-of-plane behaviour of masonry walls retrofitted with engineered cementitious composites, Comput. Struct. 201 (2018), 58–79. [26] S. Pourfalah, B. Suryanto and D.M. Cotsovos, Enhancing the out-of-plane performance of masonry walls using engineered cementitious composite, Composit. Part B: Engin. 140 (2018), 108–122. [27] S. Renuka and I. Mervin Sanjith, Strengthening of damaged masonry walls using engineered cementitious composites: Experimental and numerical analysis, Adv. Civil Eng. 2022 (2022). [28] M. Rezaei, A. Hamidi and A. Farshi Homayoun Rooz, Investigation of peak particle velocity variations during impact pile driving process, Civil Engin. Infrastruct. J. 49 (2016), no. 1, 59–69. [29] Z. Riahi, K.J. Elwood and S.M. Alcocer, Backbone model for confined masonry walls for performance-based seismic design, J. Struct. Eng. 135 (2009), no. 6, 644–654. [30] S. Singh, R. Patil and P. Munjal, Study of flexural response of engineered cementitious composite faced masonry structures, Engin. Struct. 150 (2017), 786–802. [31] M. Shokri and A. Darviza, Gilan, Publications of Gilan University, 2012. [32] A. Tabrizikahou, M. Kuczma, M. Lasecka-Plura and E. Noroozinejad Farsangi, Cyclic behavior of masonry shear [33] B. Tahmouresi, P. Nemati, M.A. Asadi, A. Saradar, and M.M. Moein, Mechanical strength and microstructure of engineered cementitious composites: A new configuration for direct tensile strength, experimental and numerical analysis, Construct. Build. Mater. 269 (2021), 121361. [34] M. Tomaˇzeviˇc and I. Klemenc, Verification of seismic resistance of confined masonry buildings, Earthquake Engin. [35] G.P. Van Zijl, Improved mechanical performance: Shear behaviour of strain-hardening cement-based composites [36] J. Zhang, M. Maalej and S. Quek, Hybrid fiber engineered cementitious composites (ECC) for impact and blast resistant structures, Proc. First Int. Conf. Innov. Mater. Technol. Construct. Restor.–IMTCR04, 2004, pp. 136–149. | ||
|
آمار تعداد مشاهده مقاله: 18,830 تعداد دریافت فایل اصل مقاله: 5,669 |
||