Moment Resistant Frames vs. Braced Frames -Steel Consumption Assessment and Structural Analysis Parameters
Keywords:
Structural system, Moment resistant, Steel structure, Braced frame.Abstract
Selection of an appropriate structural system in steel structures is one of the factors affecting the weight of consumed steel and consequently, the economics of the project. In this paper, buildings with similar plans in 4, 8, 12 and 16 stories were modeled with different structural systems and factors such as the effect of regulation control for steel structure weight and maximum roof displacement, structure frame weight and values of base shear are explored. As a result of increase in expenditures corresponding to building of steel structures, presenting an optimal and appropriate structural plan resulting in maintenance of safety and reduction of consumed steel contributes to project cost reduction. In this paper, moment resistant frames vs. braced frames - steel consumption and structural analysis parameters were evaluated. In other words, it is attempted to evaluate and compare the weight of consumed steel and important structural parameters of the building in two systems; braced frames and moment frames. For this purpose, a building with 27.8×20.6 m cross section and 4, 8, 12 and 16 stories is modeled and studied. Results reveal that for buildings having up to 8 stories, braced frames are preferred and as height increases, utilization of moment frames leads to more optimized weight of consumed steel.
References
[2] Office of codification and promotion of national building regulations, “6th issue of national building regulations, loads exerted to building”, Iran ministry of housing and urbanization, 2006.
[3] Office of codification and promotion of national building regulations, “10th issue of national building regulations, design and implementation of steel structures”. Iran ministry of housing and urbanization, 2006.
[4] Takavar, S., Rahgozar, R. “Investigation of the effect of selecting analysis and design methods on reduction of weight of steel structures with moment frames”, 5th national conference of civil engineering, Ferdowsi university, Mashhad, Iran, 2010.
[5] Razmgir, G., Abbas Zadeh, A., Edalati, M. “Effect of lateral load bearing systems on the weight of consumed steel per unit area of residential buildings having steel framework”, 7th national conference of civil engineering, Shahid Nikbakht University, Zahedan, Iran, 2013.
[6] Memarzadeh, P., Saadatpour, M. M. & Azhari, M. “Nonlinear dynamic response and ductility requirements of a typical steel plate shear wall subjected to El Centro earthquake”, Iranian Journal of Science and Technology, Transaction B: Engineering, Vol. 34, No. B4. 2010.
[7] Kaplan, H., Gönen, H., Nohutcu, H., Çetinkaya N. & Yilmaz, S. “A new strong floor-reaction wall system without gallery for experimental studies in structural mechanics”, Iranian Journal of Science and Technology, Transaction B: Engineering, Vol. 33, No. B4. 2009.
[8] Kheyroddin A., Naderpour, H., Ghodrati Amiri, G. & Hoseini Vaez, S. R. “Influence of carbon fiber reinforced polymers on upgrading shear behavior of RC coupling beams”. Iranian Journal of Science & Technology, Transactions of Civil Engineering, Vol. 35, No. C2, 2011.
[9] Kheyroddin A. & Naderpour, H. “Nonlinear finite element analysis of composite RC shear walls. Iranian Journal of Science and Technology”, Transaction B: Engineering, Vol. 32, No. B2, 2008.
[10] Seren Akavci, S. “Nonlinear analysis of semi-rigid frames with rigid end sections”. Iranian Journal of Science and Technology, Transaction B: Engineering, Vol. 31, No. B5. 2007.
[11] Arslan, H. M., Aksogan, O. & Choo, B. S. “Free vibrations of flexibly connected elastically supported stiffened coupled shear walls with stepwise changes in width”. Iranian Journal of Science and Technology, Transaction B: Engineering, Volume 28, No. B5. 2004.
[12] Hajirasouliha. I. & Doostan. A. “A simplified model for seismic response prediction of concentrically braced frames”. Advances in Engineering Software, Vol. 41, pp. 497–505, 2010.
[13] Naderpour, H., Kheyroddin A. & Ghodrati Amiri, G. “Prediction of FRP-confined compressive strength of concrete using artificial neural networks”. Composite Structures (Elsevier), IF=2.007, Vol. 92, pp. 2817–2829, 2010.
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