Overview of uncertainty in structural analysis assumptions for RC buildings

Authors
Citation
Hs. Saffarini, Overview of uncertainty in structural analysis assumptions for RC buildings, J STRUC ENG, 126(9), 2000, pp. 1078-1085
Citations number
50
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Civil Engineering
Journal title
JOURNAL OF STRUCTURAL ENGINEERING-ASCE
ISSN journal
0733-9445 → ACNP
Volume
126
Issue
9
Year of publication
2000
Pages
1078 - 1085
Database
ISI
SICI code
0733-9445(200009)126:9<1078:OOUISA>2.0.ZU;2-1
Abstract
The issue of variability in the results of structural analysis in common pr actice is discussed. Discussion is confined to reinforced concrete (RC) bui ldings. The sources of variability are classified into geometric simplifica tion, material modeling, level of sophistication of analysis, and human err or. These are discussed using results from the literature and from illustra tive examples. Emphasis is made on the need to incorporate uncertainty of s tructural analysis in the development of load factors. The LRFD approach is reviewed as it relates to this problem. Studies on human error in structur al design are reviewed where correlation is observed between the level of k nowledge of designers and reported structural failures. Recommendations giv en in this paper are motivated by the fact that the proliferation of comput ers and the availability of powerful software have impacted structural anal ysis methodology. This is noticeable in the engineering profession, codes o f practice, and academia.