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Experimental investigation of the static load bearing capacity of a FRP-strengthened tubular T-joint under brace axial compressive loading

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Authors Experimental investigation of the static load bearing capacity of a FRP-strengthened tubular T-joint under brace axial compressive loading

  Alireza Sadat Hosseini - PhD Student, University of Tehran
  Mohammad Reza Bahaari - Professor, University of Tehran;
Mohammad Lesani - Assistant Professor, Sadra University;

Abstract:

This paper presents the results of an experimental research program conducted on a FRP strengthened steel tubular T-joint made of Circular Hollow Sections. The specimen was reinforced by uni-directional glass fibers impregnated with vinyl ester resin and wrapped all around the intersection of the members and the adjacent areas. Axial compression in shape of displacement controlled non-linear static loading acting on the brace member and consequently on the chord face at the intersection was selected for the monotonic loading regime. The load–displacement was recorded during the experiments. Results of this study have been compared with a formerly conducted experiment on a FRP-strengthened tubular T-joint to evaluate how the joint geometry affects the FRP efficacy on the improvement of joint static capacity. Assessment of the relative studies confirms that the FRP wrapping has significant influence on the ultimate load capacity of the connections and can highly improve the connection behavior. In addition, it was found that joint’s geometry plays a significant role on the FRP effectiveness

Keywords:

Tubular connection, FRP-strengthening, Experimental specimen, Static load bearing capacity, Geometrical parameters.

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COI code: SECM03_154

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Sadat Hosseini, Alireza; Mohammad Reza Bahaari & Mohammad Lesani, 2019, Experimental investigation of the static load bearing capacity of a FRP-strengthened tubular T-joint under brace axial compressive loading, rd International Conference on Applied Researches in Structural Engineering and Construction Management (secm2019), تهران, دانشگاه صنعتي شريف, https://www.civilica.com/Paper-SECM03-SECM03_154.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Sadat Hosseini, Alireza; Mohammad Reza Bahaari & Mohammad Lesani, 2019)
Second and more: (Sadat Hosseini; Bahaari & Lesani, 2019)
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The University/Research Center Information:
Type: state university
Paper No.: 50880
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