Overview of Uncertainty in Structural Analysis Assumptions for RC Buildings
Publication: Journal of Structural Engineering
Volume 126, Issue 9
Abstract
The issue of variability in the results of structural analysis in common practice is discussed. Discussion is confined to reinforced concrete (RC) buildings. The sources of variability are classified into geometric simplification, material modeling, level of sophistication of analysis, and human error. These are discussed using results from the literature and from illustrative examples. Emphasis is made on the need to incorporate uncertainty of structural analysis in the development of load factors. The LRFD approach is reviewed as it relates to this problem. Studies on human error in structural design are reviewed where correlation is observed between the level of knowledge of designers and reported structural failures. Recommendations given in this paper are motivated by the fact that the proliferation of computers and the availability of powerful software have impacted structural analysis methodology. This is noticeable in the engineering profession, codes of practice, and academia.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 126 • Issue 9 • September 2000
Pages: 1078 - 1085
History
Received: Apr 11, 1999
Published online: Sep 1, 2000
Published in print: Sep 2000
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