OPTIMUM ANALYSIS OF OUTRIGGER-BRACED STRUCTURES WITH NON-UNIFORM CORE AND MINIMUM TOP-DRIFT

UM > Faculty of Science and Technology > DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING

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	OPTIMUM ANALYSIS OF OUTRIGGER-BRACED STRUCTURES WITH NON-UNIFORM CORE AND MINIMUM TOP-DRIFT
	Cheok, MFC; Lam, C. C.; Er, G. K.
	2012-07-01
Source Publication	10th World congress on computational mechanics
Abstract	Among numerous structures resisting lateral forces, outrigger-braced structure is one of the typical structures popularly employed in tall building design. It basically possesses three components: a reinforced concrete shear wall or braced steel core frame, flexural cantilevers or outriggers, and exterior columns. Generally, the core and exterior columns are connected to the outriggers respectively at several levels, which forms a structure to resist lateral force efficiently. In the previous studies, the sectional stiffness of the core is assumed to be uniform over the entire height [1]. In real structural design, the sectional stiffness of the core may not be uniform in tall building design. In this presentation, the sectional properties of the core and columns are assumed to be varied at different levels so as to fulfill the more practical situation. In this study, the governing equations for the optimum locations of outriggers and top-drift reduction efficiency under various lateral loads are formulated based on the idea presented in [2]. In addition, the influence of the relative stiffness parameters on the structural behavior at different levels is investigated. Numerical results obtained with non-uniform core will be presented and compared to numerical results obtained with uniform core.
Keyword	outrigger-braced structures structural analysis tall building bracing system
Language	英語English
The Source to Article	PB_Publication
PUB ID	8352
Document Type	Conference paper
Collection	DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Recommended Citation GB/T 7714	Cheok, MFC,Lam, C. C.,Er, G. K.. OPTIMUM ANALYSIS OF OUTRIGGER-BRACED STRUCTURES WITH NON-UNIFORM CORE AND MINIMUM TOP-DRIFT[C], 2012.
APA	Cheok, MFC., Lam, C. C.., & Er, G. K. (2012). OPTIMUM ANALYSIS OF OUTRIGGER-BRACED STRUCTURES WITH NON-UNIFORM CORE AND MINIMUM TOP-DRIFT. 10th World congress on computational mechanics.

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