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The Evaluation of Structural Behavior of Hollowed PPC Girder Using Lightweight Aggregate Concrete

Authors :
Kwang Il Cha
Byeong Cheol Lho
Ik Sang Kim
Kyung Su Lee
Source :
Journal of the Korea institute for structural maintenance and inspection. 15:75-81
Publication Year :
2011
Publisher :
Korea Institute for Structural Maintenance Inspection, 2011.

Abstract

Recently prestressed concrete bridges are generally used instead of reinforced concrete. PSC is more durable than RC because it can reduce crack problems, reinforcement corrosion, leakage and carbonation etc. And also PSC is more effective because there is no crack in tension area, and the entire concrete section is considered in section analysis. And it can reduce section size because vertical component by prestressing force can reduce the shear force. However, using high strength concrete can increase the self weight of bridge because of it`s higher density. So the hollowed PPC girder with light weight aggregate can be a alternative. In this study the hollowed PPC girder with light weight aggregate is designed and the performance of hollowed PPC girder is evaluated by experimental tests as well as numerical analysis. As a result, The hollowed PPC girder of light aggregate behaved fully elastically under service load of 110kN, and the plastic behavior was showed after elastic behavior through experimental test, and it can be also estimated by numerical analysis.

Details

ISSN :
22346937
Volume :
15
Database :
OpenAIRE
Journal :
Journal of the Korea institute for structural maintenance and inspection
Accession number :
edsair.doi...........ee8b8b60eb664881747dffda4c710b06