采用新型玻璃钢连接件和定制剪力连接件的超高性能混凝土板-玻璃钢桁架混合梁的挠曲行为

IF 2.6 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Frontiers in Materials Pub Date : 2024-09-10 DOI:10.3389/fmats.2024.1460387

Jian Zhou, Yu Feng, Xiangzhi Huang, Jingquan Wang, Rui Zhong

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引用次数: 0

摘要

我们制作了由超高性能混凝土板和玻璃钢桁架梁组成的全尺寸混合梁。采用了新型侧板玻璃钢连接件，该连接件具有更好的承载能力、刚度和优先失效模式，同时还采用了经作者先前研究验证的定制剪力连接件。对其抗弯性能进行了表征，并与采用 NC 或 UHPC 板但使用工字梁的混合梁进行了比较。拟议的混合梁在受弯时的破坏是假延性的，而其他两种混合梁的破坏是脆性的。拟议混合梁的承载能力和刚度优于其他两种具有可比尺寸和材料特性的混合梁。

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Flexural behavior of a UHPC slab - FRP truss hybrid beam implementing a novel FRP joint and tailored shear connector

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 I-profile 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.

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来源期刊

Frontiers in Materials Materials Science-Materials Science (miscellaneous)

CiteScore

4.80

自引率

6.20%

发文量

749

审稿时长

12 weeks

期刊介绍： Frontiers in Materials is a high visibility journal publishing rigorously peer-reviewed research across the entire breadth of materials science and engineering. This interdisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers across academia and industry, and the public worldwide. Founded upon a research community driven approach, this Journal provides a balanced and comprehensive offering of Specialty Sections, each of which has a dedicated Editorial Board of leading experts in the respective field.