Pushover Response of Multi Degree of Freedom Steel Frames
Abstract
Seismic codes use the behaviour factor to consider the ductility and the structure's non-linearity to improve the system's overall performance. Generally, Steel moment-resisting frames are characterized by a relatively high period showing high deformability and, foreseen that with stringent damageability criteria, the adopted behaviour factor might not optimally be utilized for achieving better performance of the frames. The design is generally governed by stiffness, leaving behind a complex structural system where the capacity design rules are disturbed and therefore necessitates to relax the drift limits for such frames. Given this and with extensive parametric analysis, the current paper aims to examine the behaviour factor of steel Moment Resisting Frames (MRFs). The parametric analysis has been conducted on rigid steel MRFs of 9, 7, and 5 storeys with bay 4 different bay widths of 9.15 m, 7.63 m, 6.54 m, and 5.08 m. Perimeter frame configuration has been designed using 4 different behaviour factors (q = 6.5, 4, 3, and 2) for a total number of 144 cases. Static nonlinear analysis has been conducted, and consequently, the behaviour factors have been examined. It has been observed that compatibility is required while choosing the drift limit for an assumed ductility class of the code.
Doi: 10.28991/cej-2020-SP(EMCE)-08
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References
Uang, Chia-Ming. "Establishing R (or Rw) and Cd factors for building seismic provisions." Journal of structural Engineering 117, no. 1 (1991): 19-28. doi:10.1061/(asce)0733-9445(1991)117:1(19).
Humar, J L, and M A Rahgozar. “Application of Uniform Hazard Spectra in Seismic Design of Multistorey Buildings.” Canadian Journal of Civil Engineering 27, no. 3 (June 1, 2000): 563–580. doi:10.1139/l99-045.
Dell’Aglio, Giuseppe, Rosario Montuori, Elide Nastri, and Vincenzo Piluso. “Consideration of Second-Order Effects on Plastic Design of Steel Moment Resisting Frames.” Bulletin of Earthquake Engineering 17, no. 6 (February 12, 2019): 3041–3070. doi:10.1007/s10518-019-00573-9.
Kappos, A.J. “Evaluation of Behaviour Factors on the Basis of Ductility and Overstrength Studies.” Engineering Structures 21, no. 9 (September 1999): 823–835. doi:10.1016/s0141-0296(98)00050-9.
Castiglioni, Carlo A., and Alessandra Zambrano. “Determination of the Behaviour Factor of Steel Moment-Resisting (MR) Frames by a Damage Accumulation Approach.” Journal of Constructional Steel Research 66, no. 5 (May 2010): 723–735. doi:10.1016/j.jcsr.2009.11.002.
Sanchez-Ricart, L., and A. Plumier. “Parametric Study of Ductile Moment-Resisting Steel Frames: A First Step Towards Eurocode 8 Calibration.” Earthquake Engineering & Structural Dynamics 37, no. 7 (2008): 1135–1155. doi:10.1002/eqe.809.
Fathi, M., F. Daneshjoo, and R.E. Melchers. “A Method for Determining the Behaviour Factor of Moment-Resisting Steel Frames with Semi-Rigid Connections.” Engineering Structures 28, no. 4 (March 2006): 514–531. doi:10.1016/j.engstruct.2005.09.006.
Gioncu, Victor, and Federico Mazzolani. Seismic design of steel structures. CRC Press, (2013).
Elghazouli, A. Y. “Assessment of European Seismic Design Procedures for Steel Framed Structures.” Bulletin of Earthquake Engineering 8, no. 1 (May 28, 2009): 65–89. doi:10.1007/s10518-009-9125-6.
Naqash, Muhammad Tayyab, Gianfranco De Matteis, and Antonio De Luca. "Seismic design of steel moment resisting frames (Mrfs)- European versus American practice." NED University Journal of Research 9, no. 2 (2012): 45-60.
Newmark, Nathan M., and William J. Hall. "Seismic design criteria for nuclear reactor facilities." In Proceedings of the 4th World conference on Earthquake Engineering, vol. 4, (1969): 37-50.
Mellati, Afshin. “Predicting Dynamic Capacity Curve of Elevated Water Tanks: A Pushover Procedure.” Civil Engineering Journal 4, no. 11 (November 29, 2018): 2513. doi:10.28991/cej-03091177.
Fajfar, Peter. “A Nonlinear Analysis Method for Performance-Based Seismic Design.” Earthquake Spectra 16, no. 3 (August 2000): 573–592. doi:10.1193/1.1586128.
Miranda, Eduardo, and Vitelmo V. Bertero. “Evaluation of Strength Reduction Factors for Earthquake-Resistant Design.” Earthquake Spectra 10, no. 2 (May 1994): 357–379. doi:10.1193/1.1585778.
Karsaz, Kamran, and Seyed Vahid Razavi Tosee. “A Comparative Study on the Behavior of Steel Moment-Resisting Frames with Different Bracing Systems Based on a Response-Based Damage Index.” Civil Engineering Journal 4, no. 6 (July 4, 2018): 1354. doi:10.28991/cej-0309178.
UBC-97. Uniform Building Code-Volume 2. In International Conference of Building officials (1997).
American Institute of Steel Construction (AISC). “Seismic Provisions for Structural Steel Buildings.” Seismic Provisions for Structural Steel Buildings (2010).
ASCE/SEI 7-16 “Minimum Design Loads and Associated Criteria for Buildings and Other Structures” (June 15, 2017): 822. doi:10.1061/9780784414248.
Breinlinger, F., Kunz, C., Loche, K., Niemann, H. J., Novák, B., Ruckenbrod, C., & Schwind, W. “Eurocode 1-Actions on Structures.” Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik (2014): 485–485. doi:10.1007/978-3-642-41714-6_51754.
BS EN 1993-1-1.de Construção, Associação Portuguesa. Design of Steel Structures: Eurocode 3: Design of Steel Structures, Part 1-1: General Rules and Rules for Buildings. John Wiley & Sons, (2016).
Composite Floor Decks, Composite Decking | Tata Steel. Available online: https://www.tatasteelconstruction.com/en_GB/Products/structural-buildings-and-bridges/Composite-floor-deck (accessed on 21 August 2020).
Structural Software for Analysis and Design | SAP2000. Available online: https://www.csiamerica.com/products/sap2000 (accessed on 21 August 2020).
Naqash, Muhammad Tayyab, and Ayed Alluqmani. “Codal Requirements Using Capacity Design Philosophy, and Their Applications in the Design of Steel Structures in Seismic Zones.” Open Journal of Earthquake Research 07, no. 02 (2018): 88–107. doi:10.4236/ojer.2018.72006.
Naqash, M. T., Gianfranco De Matteis, and A. De Luca. "Effects of capacity design rules on seismic performance of steel moment resisting frames." In World Conference on Earthquake Engineering (WCEE), Lisbon Portugal. (2012).
Tayyab Naqash, Muhammad. “An Overview on the Seismic Design of Braced Frames.” American Journal of Civil Engineering 2, no. 2 (2014): 41. doi:10.11648/j.ajce.20140202.15.
Tayyab Naqash, Muhammad. “Inelastic Behavior of Steel Buildings in Seismic Zones.” Advances in Applied Sciences 3, no. 1 (2018): 1. doi:10.11648/j.aas.20180301.11.
FEMA 356. FEMA 356 Prestandard. US Federal Emergency Management Agency, (2000).
Hakim, R. A., M. S. Alama, and S. A. Ashour. “Seismic Assessment of RC Building According to ATC 40, FEMA 356 and FEMA 440.” Arabian Journal for Science and Engineering 39, no. 11 (October 4, 2014): 7691–7699. doi:10.1007/s13369-014-1395-x.
DOI: 10.28991/cej-2020-SP(EMCE)-08
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