PRACTICAL MODELLING OF HIGH-RISE DUAL SYSTEMS WITH REINFORCED CONCRETE SLAB-COLUMN FR

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PRACTICAL MODELLING OF HIGH-RISE DUAL SYSTEMS WITH REINFORCED CONCRETE SLAB-COLUMN FRAMES

Author: MYOUNGSU SHIN1, THOMAS H.-K. KANG2* AND JACOB S. GROSSMAN1 | Size: 0.7 MB | Format: PDF | Quality: Unspecified | Publisher: THE STRUCTURAL DESIGN OF TALL AND SPECIAL BUILDINGS (Wiley Interscience) | Year: 2009 | pages: 22 | ISBN: -

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This paper discusses practical modelling issues pertinent to the design of an irregularly shaped reinforced concrete
(RC) high-rise building currently under development in New York City. The structure analysed consists of a
60-storey residential tower and a 25-storey hotel building structurally connected to each other. For the seismic
force resistance, a dual system combining ordinary RC shear walls and intermediate slab–column moment frames
was used at the upper portion, while a building frame system of ordinary RC shear walls was used at the lower
portion of the structure. A variety of models were used to simulate the behaviour of various elements of the
structure, with special attention given to overall systemic effects of different member stiffnesses considered to
account for distinct stress levels under service and ultimate loads. The models used for slab–column frames and
shear walls were verifi ed by comparing with other available models or laboratory tests. The in-plane fl exibility
of fl oor diaphragms at the interface between the two substructures with different geometries was simulated to
identify the most critical wind conditions for each structural member. Finally, building dynamic analyses were
performed to demonstrate the modelling issues to be considered for the lateral force design of irregular high-rise
buildings. Copyright © 2009 John Wiley & Sons, Ltd.

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