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ORIGINAL RESEARCH article

Front. Mater.
Sec. Structural Materials
Volume 11 - 2024 | doi: 10.3389/fmats.2024.1460387

Flexural Behavior of a UHPC Slab -FRP Truss Hybrid Beam Implementing a Novel FRP Joint and Tailored Shear Connector

Provisionally accepted
Jian Zhou Jian Zhou 1Yu Feng Yu Feng 2Xingxing Zou Xingxing Zou 3Xiangzhi Huang Xiangzhi Huang 1Jingquan Wang Jingquan Wang 4Rui Zhong Rui Zhong 5*
  • 1 Ningbo Water Conservancy & Hydropower Planning and Design Institute Co. Ltd., Ningbo, China
  • 2 Shanghai Construction Groups, Shanghai 200080, China, shanghai, China
  • 3 Nanjing Forestry University, Nanjing, Jiangsu Province, China
  • 4 Southeast University, Nanjing, Jiangsu Province, China
  • 5 Missouri University of Science and Technology, Rolla, Missouri, United States

The final, formatted version of the article will be published soon.

    A full-scale hybrid beam consisting of a UHPC slab and FRP truss girder was fabricated. The novel side plate FRP joint characterized with improved load-carrying capacity, stiffness, and preferred failure mode along with the tailored shear connector validated in the previous studies of the authors were adopted. Its flexural performance was characterized and compared with that of hybrid beams employing NC or UHPC slab but Iprofile girder. The failure of the proposed hybrid beam subjected to bending was pseudo ductile whereas those of the other two hybrid beams were brittle. The load-carrying capacity and stiffness of the proposed hybrid beam outperformed the other two hybrid beams with comparable dimensions and material properties.

    Keywords: UHPC slab, FRP truss, Hybrid beam, FRP joint, Shear connection

    Received: 06 Jul 2024; Accepted: 13 Aug 2024.

    Copyright: © 2024 Zhou, Feng, Zou, Huang, Wang and Zhong. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Rui Zhong, Missouri University of Science and Technology, Rolla, 65409, Missouri, United States

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.