Modification of the long-term deformation models for steel reinforced concrete columns

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It is important to predict the long-term deformation of steel reinforced concrete (SRC) columns especially for high-rise buildings. This research aims to modify the existing creep and shrinkage models for SRC columns. Modified models are suggested by inserting appropriate coefficients to consider the delayed long-term deformation of SRC columns resulted from the slower moisture diffusion due to the wide-flange steel. The coefficients are determined through the parametric study and it is found that the geometry of wide-flange steel is a dominant factor. The suggested models are applicable for square SRC columns with the size of wide-flange steel is over half of the total size of column. Comparison of the prediction with the experiment shows that the suggested models are quite reasonable. (C) 2018 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2018-11
Language
English
Article Type
Article
Keywords

DRYING SHRINKAGE; MOISTURE DIFFUSION; PREDICTION; CREEP

Citation

CONSTRUCTION AND BUILDING MATERIALS, v.189, pp.245 - 252

ISSN
0950-0618
DOI
10.1016/j.conbuildmat.2018.08.095
URI
http://hdl.handle.net/10203/246881
Appears in Collection
CE-Journal Papers(저널논문)
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