Title:
One-Way Slabs Subjected to Combination of Loads Failing in Shear
Author(s):
Eva O. L. Lantsoght, Cor van der Veen, Ane de Boer, and Joost C. Walraven
Publication:
Structural Journal
Volume:
112
Issue:
4
Appears on pages(s):
419-428
Keywords:
combined loads; effective width of slab; punching shear; shear; slab; structural load test
DOI:
10.14359/51687656
Date:
7/1/2015
Abstract:
Previous experimental research indicated an increased shear
capacity for slabs under concentrated loads as compared to beams. Expressions have been derived for this increase, including the definition of an appropriate effective width. It is unknown, however, if the uniformly distributed loads on solid slab bridges—for example, due to dead loads—acting over the full width, can be combined with the effects of concentrated loads, acting only over the associated effective width at the support. To study this problem, additional experiments have been carried out. In these experiments, a combination of loads consisting of a concentrated load close to the support and a line load over the full slab width are applied. The experimental results prove that the superposition principle gives conservative results for combinations of concentrated loads and distributed loads.