On the use of fixed point theory to design coupled core walls. (1st November 2015)

• Record Type: Journal Article
• Authors: Eljadei, Abdelatee A.; Harries, Kent A.
• Is Part Of: Engineering structures. Volume 102(2015:Nov. 01)
• Page Start: 61
• Page End: 65
• Publication Date: 2015-11-01
• Subjects: Coupled core walls -- Coupling beams -- Optimization -- Transmissibility -- Fixed point theory -- Performance; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2015.07.045
• Languages: English
• ISSNs: 0141-0296

Abstract

Abstract: The use of Fixed Point Theory (FPT) to optimize the design of coupling beams in coupled core wall (CCW) systems is demonstrated. The basis for optimization is minimizing the transmissibility of horizontal ground motion by appropriately linking two coupled wall piers having different dynamic properties with beams having appropriate stiffness and damping characteristics. Using 21 example CCW structures illustrating a range of pier properties, it was shown that the resulting optimization of coupling stiffness is quite small and other design considerations will require stiffer, non-optimal coupling beams. Nonetheless, the potential to leverage the small amount of coupling available in a 'slab-coupled' series of wall piers in order to reduce transmissibility is suggested by the findings of this study.