Bridging the gap between one-way and two-way shear in slabs

Eva O.L. Lantsoght, Cor Van Der Veen, Ane De Boer, Scott D.B. Alexander

Producción científica: Contribución a una revistaArtículo de la conferenciarevisión exhaustiva

10 Citas (Scopus)

Resumen

The shear capacity of slabs under concentrated loads is particularly of interest for bridge decks under concentrated live loads. Often, one-way shear will be analyzed by considering the slab as a wide beam (without taking advantage of the transverse load redistribution capacity of the slab) and two-way shear by considering the punching area around the load. Since experiments have shown that the failure mode of slabs under concentrated loads is a combination of one-way and two-way shear as well as two-way flexure, a method was sought that bridges the gap between the traditional one-way and two-way shear approaches. The proposed method is a plasticity-based method. This method is based on the Strip Model for concentric punching shear and takes the effects of the geometry into account for describing the ultimate capacity of a slab under a concentrated load. The model consists of "strips" that work with arching action (one-way shear) and slab "quadrants" that work in two-way shear. As such, the resulting Extended Strip Model is suitable for the design and assessment of elements that are in the transition zone between one-way and two-way shear.

Idioma originalInglés
Páginas (desde-hasta)187-214
Número de páginas28
PublicaciónAmerican Concrete Institute, ACI Special Publication
Volumen2016-October
N.ºSP 315
EstadoPublicada - 2016
EventoACI-fib International Symposium on Punching Shear of Structural Concrete Slabs 2016 - Philadelphia, Estados Unidos
Duración: 25 oct. 201625 oct. 2016

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