Title: Observed Deflections of Reinforced Concrete Slab Systems and Causes of Large Deflections

Author(s): ACI Committee 435

Publication: Symposium Paper

Volume: 86

Issue:

Appears on pages(s): 15-62

Keywords:

DOI: 10.14359/6425

Date: 8/1/1985

Abstract:
This report is in two distinct parts. Part I is a summary of published studies on slab deflections (3 from Australia, 1 from Scotland, 1 from Sweden, 2 from U.S.). The summary focuses on construction practices and materials quality. Comparison of deflections calculated by various methods with actual long-term deflections is made in some cases. Part II summarizes several construction problems and mate-rial deficiencies which can contribute to large long-term deflec-tions. Focusing on large construction loads, the authors show