Preliminary Analysis of High-Rise Braced Frames with Facade Riggers
Publication: Journal of Structural Engineering
Volume 129, Issue 5
Abstract
In this paper, a simple method of analysis for preliminary analysis of facade rigger stiffened braced frames in tall buildings subjected to horizontal loading is presented. The facade riggers in the structure are located in the exterior frames in the direction of the lateral loading. The interaction between the braced frames and facade riggers is through the floor diaphragms adjacent to the chords of the riggers. The method of analysis requires the calculation of five stiffness parameters: bending and racking shear stiffnesses of the braced frames and facade riggers in addition to a bending stiffness of the exterior frames in which the riggers are located. The method allows a graphical procedure for obtaining the optimum level of the facade riggers in addition to a rapid assessment of the influence of the facade riggers on the performance of the high-rise structure such as the reduction in lateral deflection at the top and the overturning moment at the base of the braced frame.
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References
Hoenderkamp, J. C. D., and Snijder, H. H.(2000). “Simplified analysis of facade braced high-rise structures.” Struct. Des. Tall Build., 9(3), 309–319.
Stafford Smith, B., and Coull, A. (1991). Tall building structures: Analysis and design, Wiley, New York.
Stafford Smith, B., Cruvellier, M., Nollet, M. J., and Mahayari, A. T. (1996). “Offset outrigger concept for tall building structures.” Proc., 67th Regional Conf. on Tall Buildings—a World View, Council on Tall Buildings and Urban Habitat, Lehigh Univ., Bethlehem, Pa., 73–80.
Stafford Smith, B., and Salim, I.(1981). “Parameter study of outrigger-braced tall building structures.” J. Struct. Eng., 107(10), 2001–2014.
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Information
Published In
Journal of Structural Engineering
Volume 129 • Issue 5 • May 2003
Pages: 640 - 647
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: May 8, 2001
Accepted: Aug 1, 2002
Published online: Apr 15, 2003
Published in print: May 2003
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