Outrigger-Belt and Frame Interaction in Composite Tall Buildings under Differential Axial Shortening
Publication: Journal of Architectural Engineering
Volume 23, Issue 3
Abstract
This paper treats the interaction of outrigger-belt systems (OBS) with structural frames in high-rise buildings with composite columns caused by differential axial shortening (DAS). The presence of OBS significantly reduces DAS in composite buildings, but when used without belts, the DAS problem is aggravated. Current methods using results from elastic single-step or staged construction reduce the accuracy of DAS predictions and result in either unsafe or overconservative designs of OBS. For modern complex buildings, the comprehensive method used in this paper, which incorporates all the influencing factors including the outrigger-belt and frame interactions, provide more accurate results. Findings from the present study show that locations of OBS influence DAS considerably and can be used for minimizing DAS. Delayed connection of outrigger walls to perimeter columns can mitigate the adverse effects of DAS, with a delay of 1–2 weeks resulting in significant reductions in stresses developed because of DAS. Information generated in this paper will be useful for planning suitable methods for OBS analysis and to minimize adverse effects of DAS in composite high-rise buildings.
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Acknowledgments
The authors thankfully acknowledge the financial support by Queensland University of Technology and support by the High Performance Computing & Research Support Group, GP Campus, QUT.
References
ANSYS 13.0. [Computer software]. ANSYS, Canonsburg, PA.
Bažant, Z. P., and Baweja, S. (2000). “Creep and shrinkage prediction model for analysis and design of concrete structures: Model B3.” Adam Neville Symposium: Creep and Shrinkage—Structural Design Effects, ACI SP–194, Vol. 194, A. Al-Manaseer, ed., American Concrete Institute, Farmington Hills, MI, 1–84.
BSI (British Standards Institution). (2004). “Design of concrete structures, Part 1-1: General rules and rules for buildings.” Eurocode 2, London.
Choi, H. S., Ho, G., Joseph, L., and Mathias, N. (2012). Outrigger design for high-rise buildings, Council on Tall Buildings and Urban Habitat, Chicago.
Fawzia, S., and Fatima, T. (2010). “Deflection control in composite building by using belt truss and outriggers system.” Int. J. Civ. Environ., Struct. Constr. Archit. Eng., 4(12), 414–419.
Geng, Y., Ranzi, G., Wang, Y., and Zhang, S. (2012). “Time-dependent behaviour of concrete-filled steel tubular columns: analytical and comparative study.” Mag. Concr. Res., 64(1), 55–69.
Kwon, S. H., Kim, Y. Y., and Kim, J. K. (2005). “Long-term behaviour under axial service loads of circular columns made from concrete filled steel tubes.” Mag. Concr. Res., 57(2), 87–99.
Moragaspitiya, P. H. N. (2011). “Interactive axial shortening of columns and walls in high rise buildings.” Ph.D. thesis, Queensland Univ. of Technology, Brisbane, Australia.
Morino, S., Kawaguchi, J., and Cao, Z. S. (1996). “Creep behavior of concrete-filled steel tubular members.” Proc., Engineering Foundation Conf. on Steel-Concrete Composite Construction III, ASCE, Reston, VA., 514–525.
Taranath, B. S. (2009). Reinforced concrete design of tall buildings, CRC, Boca Raton, FL.
Tianyi, Y., and Tong, X. (2007). “Differential column shortening effects in typical medium-to high-rise buildings.” New Horizons and Better Practices, ASCE Structures Congress, eds., ASCE, Reston, VA, 1–10.
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Published In
Journal of Architectural Engineering
Volume 23 • Issue 3 • September 2017
Copyright
© 2017 American Society of Civil Engineers.
History
Received: Apr 4, 2016
Accepted: Dec 5, 2016
Published online: Jul 7, 2017
Published in print: Sep 1, 2017
Discussion open until: Dec 7, 2017
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