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http://dx.doi.org/10.7781/kjoss.2012.24.5.571

Experimental Verification of Age-adjusted Effective Modulus Method to Long-Term Behavior Estimation of Prestressed Composite Girders  

Bae, Doo-Byong (School of Civil and Environmental Engineering, Kookmin University)
Oh, Chang-Kook (School of Civil and Environmental Engineering, Kookmin University)
Choi, Sok-Hwan (School of Civil and Environmental Engineering, Kookmin University)
Publication Information
Journal of Korean Society of Steel Construction / v.24, no.5, 2012 , pp. 571-582 More about this Journal
Abstract
Prestressed composite girders provide efficient composite action by applying prestress to the sub-encasing concrete. In this study, an enhanced prestressed composite girder with forms suspended from the steel girder is utilized. Long-term behavior of the prestressed composite girder is estimated using age-adjusted effective modulus method, which is verified experimentally using measurements obtained from an in-service bridge. Then, parametric study is carried out to investigate the influences caused by ambient temperature, humidity, prestressing and concrete casting date.
Keywords
age-adjusted effective modulus method; prestressed composite girders; long-term behavior; creep; shrinkage; prestress loss;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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