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Investigating the Effects of Geometric Parameters of Buckling Restrained Braces on the Cyclic Behavior of Buckling Restrained Braced Frames | ||
| نشریه مهندسی عمران و محیط زیست | ||
| مقاله 13، دوره 52، شماره 108، 1401، صفحه 141-150 اصل مقاله (1.31 M) | ||
| نوع مقاله: مقاله کامل پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22034/jcee.2021.37823.1899 | ||
| نویسندگان | ||
| احسان دهقانی* 1؛ نرگس بابایی2؛ علیرضا زرین اقبال3 | ||
| 1گروه مهندسی عمران، دانشکده فنی و مهندسی، دانشگاه قم | ||
| 2گروه مهندسی عمران، دانشگاه شهید باهنر، کرمان | ||
| 3گروه سازه، دانشکده مهندسی عمران، پردیس دانشکدههای فنی دانشگاه تهران | ||
| چکیده | ||
| Today, the buckling-restrained bracing frames (BRBFs) are widely used as a new system contributing to the absorption of a high amount of energy through yielding of the buckling-restrained brace (BRB) core when exposed to compression and tension. The relatively high cost of exploitation of this system has prompted researchers to seek for ways to reduce the costs while providing seismic performance. The present study was carried out to investigate the effect of the ratio of the yielding segment cross-sectional area to the elastic segment cross-sectional area as well as the length of the yielding segment to the total length of the BRB core on energy absorption demand of these braces in different stories of the BRB frames. For this purpose, two 5-and-10-story BRB frames have been modeled in Open Sees software, then the nonlinear time history analysis was performed on these frames under seven earthquake records. Using the results of the analysis, the energy absorption demand of braces on different stories with different ratios of the yielding segment cross-sectional area to the elastic segment cross-sectional area as well as the length of the yielding segment to the total length of the BRB core has been calculated. The results indicated that the variation of these ratios in the BRB can be effective in the amount of energy absorption demand of, in addition, the nature of this effect depended on the braced story in the BRB frame. However, the effect of stiffness modification factor on the uniformity of the energy absorption demand of braces in different stories is insignificant compared to the changes in the cross-sectional area of braces in different stories. | ||
| کلیدواژهها | ||
| Buckling-restrained brace؛ Energy absorption demand؛ Cyclic behavior؛ Buckling-restrained bracing frame؛ Stiffness modification factor | ||
| مراجع | ||
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AISC 341, Seismic Provisions for Structural Steel Buildings, American Institute of Steel Construction, in, Chicago, 2010. AISC 360, Seismic provisions of structural steel building, American Institute of Steel Construction, Chicago, 2010. ASCE/SEI 7-10, Minimum Design Loads for Buildings and Other Structures, American Society of Civil Engineers, in, United States of America, 2010. Bosco M, Marino E, “Design Method and Behavior Factor for Steel Frames with Buckling Restrained Braces”, International Association for Earthquake Engineering, 2013, 42 (8), 1243-1263. Bruneau M, Uang C, Sabelli R, “Ductile Design of Steel Structures”, McGraw-Hill, New York, 2011. Carden LP, Itani AM, Buckle LG, “Cyclic behavior of buckling restrained braces for ductile end cross frames”, Engineering Journal, American Institute of Steel Construction, 2006, 43,127-140. Clark P, Aiken I, “Design procedures for buildings iIncorporating hysteretic damping devices”, 68th Annual Convention, Santa Barbara, California, 1999. Dehghan F, Tasnimi A, “Determination of the Parameters Influencing Behavior Factor of Buckling Restrained Braced Reinforced Concrete Frames”, Amirkabir Jounrnal of Science and Research Civil and Enviromental Engineering, 2016, 48 (4), 137-142. Dehghani E, Babaei N, Zarrineghbal A, “Investigation of the Distribution of Cumulative Ductility Demand Parameter in Various Storeys of Buckling Restrained Braced Frames”, Journal of Rehabilitation in Civil Engineering, 2018. Hosseinzadeh S, Mohebi B, “Seismic evaluation of all-steel buckling restrained braces using finite element analysis”, Journal of Constructional Steel Research, 2016, 119 (Supplement C), 76-84. Iranian National Building Code, Part 6, Structural Loadings, Ministry of Housing and Urban Development, in, Tehran, Iran 2013 (In Persian). Iranian National Building Regulation, Part-10 , Design and Construction of Steel Buildings, Ministry of Housing and Urban Development, Tehran, Iran, 2013 (In Persian). Jia M, Lu D, Guo L, Sun L, “Experimental research and cyclic behavior of buckling-restrained braced composite frame”, Journal of Constructional Steel Research, 2014, 95, 90-105. Jiu Jia L, Dong Y, Ge H, Kondo K, “Experimental Study on High-Performance Buckling-Restrained Braces with PerforatedCore Plates”, International Journal of Structural Stability and Dynamics, 2019, 19 (1). Karimi S, Arbabi F, “Seismic evaluation and cyclic testing of buckling restrained braces manufactured in Iran”, The 14th World Conference on Earthquake Engineering, 2008, Beijing, China. Kersting RA, Fahnestock LA, Lopez WA, Seismic Design of Steel Buckling-Restrained Braced Frames, 2015, NIST GCR, 15-917-34. Lopez W, Sabelli R, “Seismic Design of Buckling-Restrained Braced Frames”, Steel TIPS, 2004. Mahdavipour MA, Deylami A, “Probabilistic assessment of strain hardening ratio effect on residual deformation demands of Buckling-Restrained Braced Frames”, Engineering Structures, 2014, 81 (Supplement C), 302-308. Pandikkadavath MS, Sahoo DR, “Analytical investigation on cyclic response of buckling restrained braces with short yielding core segments”, International Journal of Steel Structures, 2016, 16, 1273-1285. Qu Z, Xie J, Cao Y, Li W, “Effects of strain rate on the hysteretic behavior of buckling restrained braces”, Journal of Structural Engineering, 2019, 146 (1). Rahai AR, Alinia MM, Salehi SMF, “Cyclic performance of buckling restrained composite braces composed of selected materials”, International Journal of Civil Engineering, 2009, 7 (1). Rahnavard R, Naghavi M, Abdoli M, Suleiman M, “Investigating modeling approaches of buckling restrained braces under cyclic loads”, Case Studies In Construction Marerials, 2018, 8, 476-488. Raissi M, Foroughi AM, Eghbali M, “Effect of yielding segment on seismic performance of buckling restrained braces”, Sharif Civil Engineering, 2017, 33 (2), 69-77 (In Persian). Standard No. 2800, Iranian Code of Practice for Seismic Resistant Design of Buildings, 4th Revision, Building and Housing Research Center, Iran, 2015 (In Persian). Watanabe A, Hitomi Y, Saeki E, Wada A, “Properties of brace encased in buckling–restraining concrete and steel tube”, Ninth World Conference on Earthquake Engineering, Tokyo-Kyoto, 1988. | ||
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