پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 158 |
| تعداد شمارهها | 6,225 |
| تعداد مقالات | 67,687 |
| تعداد مشاهده مقاله | 115,002,105 |
| تعداد دریافت فایل اصل مقاله | 89,680,853 |
The Effect of Easy-Going Steel on KBF's Seismic Behavior | ||
| Civil Engineering Infrastructures Journal | ||
| مقاله 6، دوره 46، شماره 1، شهریور 2013، صفحه 81-94 اصل مقاله (678.04 K) | ||
| نوع مقاله: Research Papers | ||
| شناسه دیجیتال (DOI): 10.7508/ceij.2013.01.006 | ||
| نویسندگان | ||
| Mussa Mahmoudi* 1؛ Asghar Vatani Oskouie2؛ Amin Havaran2 | ||
| 1Shahid Rajaee Reacher Training University | ||
| 2Shahid Rajaee Teacher Training University | ||
| چکیده | ||
| The knee bracing steel frame (KBF) is a new type of energy dissipating frame which enjoys exceptional ductility and lateral stiffness. Rather than the beam-column joint, one end of the diagonal brace in KBF is attached to the knee element. Indeed, the knee element as a hysteretic damper is designed and detailed to behave like a structural fuse by sustaining controlled inelastic deformations as well as by dissipating seismic energy, yet other parts and connections remain elastic. Simultaneously, the lower strength steel is utilized in knee element based on the general concept of easy-going steel (EGS). As the current paper takes into account the effect of easy going steel on KBF's response modification factor, several frames with similar dimensions but varying heights are designed based on the Iranian code of practice. For this purpose, initially the knee elements are substituted with the one made of EGS and subsequently the seismic parameters such as response modification factor and seismic performance levels are compared based on non-linear incremental dynamic analysis (IDA). The average values of response modification factor for these frames have been obtained 11.4 and 11.6 for KO and KE frames respectively. The results reveal that the frames' stiffness and ductility factor with EGS augments by 10% and 6% respectively. | ||
| کلیدواژهها | ||
| Easy-Going Steel (EGS)؛ Increment Dynamic Analysis (IDA)؛ Knee Bracing Steel Frame؛ Response Modification Factor (R) | ||
| مراجع | ||
|
American Institute of Steel Construction (AISC), (2005) “Seismic provisions for structural steel buildings”, Chicago.
Aristizabal-Ochoa, J.D. (1986). “Disposable knee bracing: improvement in seismic design of steel frames”, J. Structural Engineering, ASCE, 112(7), 1544-1552.
Asgarian, B. and Shokrgozar, H.R. (2009). “BRBF response modification factor”, Constructional Steel Research, 65, 290-298.
ATC. (1995). “A critical review of current approaches to earthquake-resistant design”, ATC-34, Applied Technology Council, Redwood City, CA, 6–31.
ATC. (1995). “Structural response modification factors”, ATC-19. Applied Technology Council, Redwood City, CA. 5–32.
Bahrampoor, H. and Sabouri-Ghomi, S. (2010). “Effect of easy-going steel concept on the behavior of diagonal eccentrically braced Frames”, International Journal of Civil Engineering, 8(3), 242-255.
Balendra, T., Lim, E.L. and Lee, S.L. (1994). "Ductile knee-braced frames with shear yielding knee for seismic resistant structures”, Engineering Structures, 16(4), 263–9.
Balendra, T., Sam, M.T. and Liaw, C.Y. (1990). “Diagonal brace with ductile knee anchor for a seismic steel frame”, Earthquake Engineering and Structural Dynamics, 19(6), 847-858.
BHRC (2005). “Iranian code of practice for seismic resistance design of buildings”, Standard No. 2800 (3rd ed.), Building and Housing Research Center.
Cengizhan Durucan, Murat Dicleli. (2010). “Analytical study on seismic retrofitting of reinforced concrete buildings using steel braces with shear link”, Engineering Structures, 32, 2995–3010.
European Committee for Standardization. (1998). European Pre-standard ENV (Eurocode 8): Design provisions for earthquake resistance of structures, Bruxelles.
Federal Emergency Management Agency (FEMA). (1997). “NEHRP provisions for the seismic rehabilitation of buildings”, Report FEMA 273 and 274, Washington DC.
Federal Emergency Management Agency (FEMA). (2000). “NEHRP provisions for the seismic rehabilitation of buildings”, Report FEMA-356, Washington DC.
International Conference of Building Officials. (1997). “Uniform Building Code”, Whittier, California.
Ker-Chun Lin, Chu-Chieh J. Lin, Jung-Yu Chen, Heui-Yung Chang. (2010). “Seismic reliability of steel framed buildings”, Structural Safety, 32, 174–182.
Lotfollahi, M. and Mofid, M. (2006). “On the design of new ductile knee bracing”, Constructional Steel Research, 62, 282–294.
Luigi Mastrandrea, Vincenzo Piluso. (2009). “Plastic design of eccentrically braced frames, I Moment shear interaction”, Constructional Steel Research, 65, 1007-1014.
Maheri, M.R. and Akbari, R. (2003). “Seismic behaviour factor, R, for steel X-braced and knee-braced RC buildings”, Engineering Structures, 25, 1505–1513.
Mazzolani, F.M. and Piluso, V. (1996). Theory and design of seismic resistant steel frames, Routledge, London.
Mazzoni, S. and McKenna, F. (2007). “OpenSees command language manual” version 2.1.0. Pacific earthquake engineering research center.
Miri, M., Zare, A.R. and Abbas Zadeh, H. (2009). “Seismic behavior of steel frames investigation with knee-brace based on pushover analysis”, World Academy of Science, Engineering and Technology, 50, 932-938.
Mofid, M. and Lotfollahi, M. (2006). “On the characteristics of new ductile knee bracing systems”, Constructional Steel Research, 62, 271–281.
Mwafy, A.M. and Elnashai, A.S. (2002), “Calibration of force reduction factors of RC buildings”, Earthquake Engineering, 6(22), 239–73.
Naeemi, M. and Bozorg, M. (2009). “Seismic Performance of Knee Braced Frame”, World Academy of Science, Engineering and Technology, 50, 976-980.
Roeder, C.W. and Popov, E.P. (1978). “Eccentrically braced steel frames for earthquakes”, J. Structural Division, ASCE, 104, 391-411.
Sabouri-Ghomi, S. (2004). Lateral load resisting systems and innovative idea to application of Easy- Going Steel, EGS, Angizeh publishing Company.
Sabouri-Ghomi, S. and Ebadi, P. (2008). “Concept improvement of behavior of X-Bracing systems by using Easy-Going Steel”, The 14th World Conference on Earthquake Engineering, October 12-17, Beijing, China.
Sabouri-Ghomi, S. and Ziaei, M. (2008). “A study on the behavior of shear link beam made of easy-going steel in eccentrically braced frames”, The 14th World Conference on Earthquake Engineering, October 12-17, Beijing, China.
Schmidt, B.J. and Bartlett, F.M. (2002). “Review of resistance factor for: Resistance distributions and resistance factor calibration”, Canadian Journal of Civil Engineering, 29, 109–18.
Sheng-Jin Chen, Chyuan Jhang. (2011). “Experimental study of low-yield-point steel plate shear wall under in-plane load”, Constructional Steel Research, 67, 977–985.
Susantha, K.A.S., Aoki, T., Kumano, T. and Yamamoto, K. (2005). “Applicability of low-yield-strength steel for ductility improvement of steel bridge piers”, Engineering Structures, 27, 1064–1073.
Uang, C.M. (1991). “Establishing R (or Rw) and Cd factor for building seismic provision”, Structure Engineering, 117(1), 19–28.
Vulcano, A. and Mazza, F. (2000). “Comparative study of the seismic performance of frames using different dissipative braces”, 12th World Conference on Earthquake Engineering, January 30-February 4, Auckland, New Zealand. | ||
|
آمار تعداد مشاهده مقاله: 7,301 تعداد دریافت فایل اصل مقاله: 2,865 |
||