Deformation limit states for circular reinforced concrete bridge columns

Authors
Citation
Mj. Kowalsky, Deformation limit states for circular reinforced concrete bridge columns, J STRUC ENG, 126(8), 2000, pp. 869-878
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Civil Engineering
Journal title
JOURNAL OF STRUCTURAL ENGINEERING-ASCE
ISSN journal
0733-9445 → ACNP
Volume
126
Issue
8
Year of publication
2000
Pages
869 - 878
Database
ISI
SICI code
0733-9445(200008)126:8<869:DLSFCR>2.0.ZU;2-T
Abstract
Through the use of moment-curvature analysis of circular bridge columns, di mensionless serviceability and damage control curvature relationships are d eveloped that depend only on the column axial load ratio and section diamet er. These relationships are used to establish curvature, displacement ducti lity, drift ratio, and equivalent viscous damping capacities for the design limit states considered. It is shown that current code-based design approa ches, which imply a constant ductility factor, will generally result in dam age levels that are highly variable. The paper also discusses implications of the study on limit-states design approaches such as displacement-based d esign.