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Innovative Structural Concept & Solution for Mega Tall Buildings Applied to One Kilometer SkyscraperDOI: 10.4236/oalib.1103459, PP. 1-18 Subject Areas: Civil Engineering Keywords: Innovative, Drift, Outriggers, Skyscraper, Tall Buildings Abstract
Structural systems for
tall buildings have undergone dramatic changes since the demise of the
conventional rigid frames in the 1960s as the predominant type of structural
system for steel or concrete tall buildings. Generally, the structural systems
of tall buildings are considered to be two types. One is interior and the other
one is exterior type. The frame tube buildings have been the most efficient
structural system used for building which is in the range of 40-100 stories. In the early 1970s, Fintel (1974)
indicated that properly designed structural walls could be used effectively as
the primary lateral-load resisting system for both wind and earthquake loading
in multistory buildings. This study is intended to model an advanced structural
system for tall buildings. In this innovative concept, several parallel shear
walls have been arranged in both directions and connected with beams and R.C.
floor slabs. The shear walls are continuous down to the base to which they are
rigidly attached to form vertical cantilevers. Their high in plane stiffness and
strength make them well suited for bracing buildings up to about 278 stories.
Also it is found by research that, when this structural arrangement is applied
to around 830 meter tall structure with aspect ratio 8.14:1, no additional
structural supporting system is required. This shear walls arrangement is
applicable for the tall buildings of any height to avoid additional supports to
resist the lateral forces while taking advantage of the creative approach of
this unique concept.
Alam, F. (2017). Innovative Structural Concept & Solution for Mega Tall Buildings Applied to One Kilometer Skyscraper. Open Access Library Journal, 4, e3459. doi: http://dx.doi.org/10.4236/oalib.1103459. References
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