Dynamic Characteristic and Aseismatic Analysis of Tall Structures with Outriggers

Abstract:

Based on the finite element software ETABS, the effect of outriggers on the seismic response of a 50-story steel frame-reinforced concrete core tube structure was analyzed in this paper. Periods of free-vibrations were obtained from mode analysis. Response spectrum on the seismic properties was discussed. Elastic time history method was used to get complete analysis of the structure adopting four seismic waves. Structural horizontal displacement, drift angle, internal force of components and the distribution of internal forces between inner tube and outer frame under earthquake were studied. The rational quantity and locations of outriggers were considered. Further research in elastic time history was presented considering the influence of quantity of outriggers when outriggers were all set in “reasonable locations”. Some suggestions about steel frame-reinforced concrete core tube structures with outriggers in earthquake areas were given.

• Periodical: Key Engineering Materials (Volumes 400-402)
• Pages: 607-612
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.400-402.607
• Online since: October 2008
• Authors: Yu Chen, Pu Sheng Shen
• Keywords: Aseismatic Analysis, Dynamic Characteristic, Finite Element Analysis (FEA), Outrigger

References

[1] J.R. Wu and Q.S. Li. Structural Performance of Multi-outrigger-braced Tall Buildings. The Structural Design of Tall and Special Buildings, John Wiley & Sons, Ltd, 12(2)(2003), pp.155-176.

DOI: 10.1002/tal.219

[2] P.F. Xu, X.Y. Fu, C.K. Wang, et al. Design of Complex Tall Building Structures. Beijing：China Architecture & Building Press(2005).

[3] B.S. Smith and I. Salim. Parameter Study of Outrigger-braced Tall Building Structures. Journal of The Structure Division, ASCE, 107(10) (1981), p.2001-(2013).

DOI: 10.1061/jsdeag.0005798

[4] Y.Q. Wang, Y. Huang, Y. j. Shi, et al. Finite Element Analysis on Dynamic Characteristics and Seismic Resistance of Super High-rise Steel Structures. China Civil Engineering Journal, 39(5)( 2006), pp.65-71.

[5] B. S Smith and A. Coull. Tall Building Structures: Anslysis and Design. John Wiley & Son, Inc(1991).

[6] J.C.D. Hoenderkamp and M.C.M. Bakker. Analysis of High-rise Braced Frames with Outriggers. The Structural Design of Tall and Special Buildings, 12(8)(2003), pp.335-350.

DOI: 10.1002/tal.226

[7] J.C.D. Hoenderkamp and H.H. Snijder. Preliminary Analysis of High-rise Braced Frames with Facade Riggers. Journal of Structural Engineering, ASCE, 129(5)(2003), pp.640-647.

DOI: 10.1061/(asce)0733-9445(2003)129:5(640)

[8] S.M. Huang and L. Wei: The Fifth International Conference on Tall Building. Hong Kong, 14(5)(1998), pp.4-10.