Title:
Estimating Two-Way Slab Deflections
Author(s):
Andrew Scanlon and Bruce Suprenant
Publication:
Concrete International
Volume:
33
Issue:
7
Appears on pages(s):
29-34
Keywords:
two-way slabs, deflection, loading, shoring
DOI:
Date:
7/1/2011
Abstract:
This article provides a simplified calculation method for estimating deflections of two-way slabs in multi-story buildings. Early-age loading and its effects on concrete properties (elastic and creep behaviors) are incorporated. The method is implemented in a spreadsheet format, allowing users to investigate the effects of slab dimensions, design loads, and shoring/reshoring scenarios on long-term deflections. The method is shown to provide good agreement with data from laboratory tests of slabs.