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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Double-Headed Studs in Shear Walls
Author(s): Syed S. Mobeen, Alaa E. Elwi, and Amin Ghali
Publication: Concrete International
Appears on pages(s): 59-63
Keywords: seismic; crosstie; boundary element; shear wall
Abstract:Seismic forces are commonly resisted by “boundary elements” in reinforced concrete shear walls, where the wall is thickened to contain a large gross area of vertical bars and ties. ACI 318-02 specifies the amount of the required confinement reinforcement in the boundary elements to achieve high ductility, normally in the form of closed stirrups and single-legged crossties. Because crossties contribute significantly to the congestion of steel in boundary elements, use of double-headed studs could simplify both the installation of the reinforcement and the placement of concrete. The present article summarizes tests of shear walls subject to cyclic lateral load. Crossties in the control wall comprised hooked bars; crossties in the two test walls were double-headed studs.
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