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    Strain Estimation of CFRP-Confined Concrete Columns Using Energy Approach

    Source: Journal of Composites for Construction:;2013:;Volume ( 017 ):;issue: 006
    Author:
    Thong M. Pham
    ,
    Muhammad N. S. Hadi
    DOI: 10.1061/(ASCE)CC.1943-5614.0000397
    Publisher: American Society of Civil Engineers
    Abstract: A new model is presented for calculating the axial strain of carbon fiber-reinforced polymer (CFRP)-confined concrete columns. An energy-balance approach is introduced to establish a relationship of the energy absorption between a confined concrete column and CFRP. The proposed model was verified using a large database collected from 167 CFRP-confined plain concrete specimens. This database contains 98 circular specimens with diameters ranging between 100 and 152 mm, and 69 square specimens having a side length ranging between 100 and 152 mm. The database covers unconfined concrete strengths from 20 to 50 MPa. The proposed model shows very good correlation with the experimental results. In addition, the proposed model also provides a comparative prediction of the strain of CFRP-confined concrete columns in two extreme cases, i.e., (1) insufficient confinement, and (2) heavy confinement, which are not usually well predicted by other models.
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      Strain Estimation of CFRP-Confined Concrete Columns Using Energy Approach

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    http://yetl.yabesh.ir/yetl1/handle/yetl/57541
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    contributor authorThong M. Pham
    contributor authorMuhammad N. S. Hadi
    date accessioned2017-05-08T21:36:52Z
    date available2017-05-08T21:36:52Z
    date copyrightDecember 2013
    date issued2013
    identifier other%28asce%29cc%2E1943-5614%2E0000400.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/57541
    description abstractA new model is presented for calculating the axial strain of carbon fiber-reinforced polymer (CFRP)-confined concrete columns. An energy-balance approach is introduced to establish a relationship of the energy absorption between a confined concrete column and CFRP. The proposed model was verified using a large database collected from 167 CFRP-confined plain concrete specimens. This database contains 98 circular specimens with diameters ranging between 100 and 152 mm, and 69 square specimens having a side length ranging between 100 and 152 mm. The database covers unconfined concrete strengths from 20 to 50 MPa. The proposed model shows very good correlation with the experimental results. In addition, the proposed model also provides a comparative prediction of the strain of CFRP-confined concrete columns in two extreme cases, i.e., (1) insufficient confinement, and (2) heavy confinement, which are not usually well predicted by other models.
    publisherAmerican Society of Civil Engineers
    titleStrain Estimation of CFRP-Confined Concrete Columns Using Energy Approach
    typeJournal Paper
    journal volume17
    journal issue6
    journal titleJournal of Composites for Construction
    identifier doi10.1061/(ASCE)CC.1943-5614.0000397
    treeJournal of Composites for Construction:;2013:;Volume ( 017 ):;issue: 006
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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