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http://dx.doi.org/10.4334/JKCI.2006.18.4.479

Time-Dependent Behavior Analysis of Pre-Tensioned Members Using High-Performance Concrete(HPC)  

Nam, Yoo-Seok (Research Institute for Disaster Prevention, KyungPook National University)
Cho, Chang-Geun (School of Architecture and Civil Engineering, KyungPook National University)
Park, Moon-Ho (School of Architecture and Civil Engineering, KyungPook National University)
Publication Information
Journal of the Korea Concrete Institute / v.18, no.4, 2006 , pp. 479-487 More about this Journal
Abstract
This paper deals with a research about the time-dependent behavior analysis for pre-tensioned high-performance concrete(HPC) members. By improving AASHTO-LRFD(2004) method for predicting the creep and shrinkage of normal concrete, and the relaxation of prestressing tendon, a time-dependent behavior analysis of high-performance concrete structures has been introduced. Two methods, the step-function method and the time-step method have been incorporated in the time-dependent analysis. The developed program can predict the initial and time-dependent losses of prestressing forces and the deflections of high-performance concrete structures. The present model has been verified by comparing with the experimental results from the test of time-dependent behaviors of pre-tensioned members using high-performance concrete. From this, the current model gives good relations with the experimental results, but the AASHTO method is not good for the prediction of time-dependent behaviors of high-performance concrete members.
Keywords
high-performance concrete(HPC); time-dependent behavior analysis; pre-tensioned member;
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Times Cited By KSCI : 1  (Citation Analysis)
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