Title:
Comparison of One- and Two-Way Slab Minimum Thickness Provisions in Building Codes and Standards
Author(s):
Young Hak Lee and Andrew Scanlon
Publication:
Structural Journal
Volume:
107
Issue:
2
Appears on pages(s):
157-163
Keywords:
deflection; minimum thickness; reinforced concrete; serviceability.
DOI:
10.14359/51663531
Date:
3/1/2010
Abstract:
Minimum thickness provisions for one- and two-way slabs provide a well-established approach for deflection control. Various national design codes and specifications have approached these provisions from different perspectives. Concerns have been raised about the range of the validity of current ACI Code provisions. This paper compares the ACI Code provisions with several national codes and an equation proposed by the authors to incorporate the main design variables affecting deflection control. Based on the results of the comparison, a recommendation is made to adopt the proposed equation, retaining the current values as upper limits.