Experimental and Theoretical Research on the Compression Performance of CFRP Sheet Confined GFRP Short Pipe

The axial compressive strength of unidirectional FRP made by pultrusion is generally quite lower than its axial tensile strength. This fact decreases the advantages of FRP as main load bearing member in engineering structure. A theoretical iterative calculation approach was suggested to predict the...

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Main Authors: Feng Li, Qilin Zhao, Li Chen, Guojian Shao
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/109692
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author Feng Li
Qilin Zhao
Li Chen
Guojian Shao
author_facet Feng Li
Qilin Zhao
Li Chen
Guojian Shao
author_sort Feng Li
collection DOAJ
description The axial compressive strength of unidirectional FRP made by pultrusion is generally quite lower than its axial tensile strength. This fact decreases the advantages of FRP as main load bearing member in engineering structure. A theoretical iterative calculation approach was suggested to predict the ultimate axial compressive stress of the combined structure and analyze the influences of geometrical parameters on the ultimate axial compressive stress of the combined structure. In this paper, the experimental and theoretical research on the CFRP sheet confined GFRP short pole was extended to the CFRP sheet confined GFRP short pipe, namely, a hollow section pole. Experiment shows that the bearing capacity of the GFRP short pipe can also be heightened obviously by confining CFRP sheet. The theoretical iterative calculation approach in the previous paper is amended to predict the ultimate axial compressive stress of the CFRP sheet confined GFRP short pipe, of which the results agree with the experiment. Lastly the influences of geometrical parameters on the new combined structure are analyzed.
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institution Kabale University
issn 2356-6140
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language English
publishDate 2014-01-01
publisher Wiley
record_format Article
series The Scientific World Journal
spelling doaj-art-32170c03c97d4e6e8ce7a06013b82e4d2025-02-03T01:10:18ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/109692109692Experimental and Theoretical Research on the Compression Performance of CFRP Sheet Confined GFRP Short PipeFeng Li0Qilin Zhao1Li Chen2Guojian Shao3College of Mechanics and Materials, Hohai University, 1 Xikang Road, Nanjing 210098, ChinaPLA University of Science and Technology, 88 Houbiaoying Road, Nanjing 210007, ChinaPLA University of Science and Technology, 88 Houbiaoying Road, Nanjing 210007, ChinaCollege of Mechanics and Materials, Hohai University, 1 Xikang Road, Nanjing 210098, ChinaThe axial compressive strength of unidirectional FRP made by pultrusion is generally quite lower than its axial tensile strength. This fact decreases the advantages of FRP as main load bearing member in engineering structure. A theoretical iterative calculation approach was suggested to predict the ultimate axial compressive stress of the combined structure and analyze the influences of geometrical parameters on the ultimate axial compressive stress of the combined structure. In this paper, the experimental and theoretical research on the CFRP sheet confined GFRP short pole was extended to the CFRP sheet confined GFRP short pipe, namely, a hollow section pole. Experiment shows that the bearing capacity of the GFRP short pipe can also be heightened obviously by confining CFRP sheet. The theoretical iterative calculation approach in the previous paper is amended to predict the ultimate axial compressive stress of the CFRP sheet confined GFRP short pipe, of which the results agree with the experiment. Lastly the influences of geometrical parameters on the new combined structure are analyzed.http://dx.doi.org/10.1155/2014/109692
spellingShingle Feng Li
Qilin Zhao
Li Chen
Guojian Shao
Experimental and Theoretical Research on the Compression Performance of CFRP Sheet Confined GFRP Short Pipe
The Scientific World Journal
title Experimental and Theoretical Research on the Compression Performance of CFRP Sheet Confined GFRP Short Pipe
title_full Experimental and Theoretical Research on the Compression Performance of CFRP Sheet Confined GFRP Short Pipe
title_fullStr Experimental and Theoretical Research on the Compression Performance of CFRP Sheet Confined GFRP Short Pipe
title_full_unstemmed Experimental and Theoretical Research on the Compression Performance of CFRP Sheet Confined GFRP Short Pipe
title_short Experimental and Theoretical Research on the Compression Performance of CFRP Sheet Confined GFRP Short Pipe
title_sort experimental and theoretical research on the compression performance of cfrp sheet confined gfrp short pipe
url http://dx.doi.org/10.1155/2014/109692
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