复材新结构梁柱节点:研究现状及展望

田时雨; 任凤鸣; 陈光明

doi:10.13204/j.gyjzG20062905

复材新结构梁柱节点:研究现状及展望

doi: 10.13204/j.gyjzG20062905

1. 广州大学土木工程学院, 广州 510006;
2. 华南理工大学亚热带建筑科学国家重点实验室, 广州 510641

基金项目:

广州市教育局高校"羊城学者"科研项目：FRP约束钢骨再生混凝土构件设计方法的关键问题研究（202032849）。

详细信息

作者简介:
田时雨,男,1992年出生,博士研究生。

通讯作者:
陈光明,guangmingchen@scut.edu.cn。

计量
- 文章访问数: 192
- HTML全文浏览量: 13
- PDF下载量: 5
- 被引次数: 0
出版历程
- 收稿日期: 2020-06-29
- 网络出版日期: 2021-10-27

BEAM-TO-COLUMN JOINT OF NEW STRUCTURES INCORPORATING FRP: CURRENT STATUS AND PROSPECTS

1. School of Civil Engineering, Guangzhou University, Guangzhou 510006, China;
2. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, China

摘要

摘要: 纤维增强复合材料（FRP）因其轻质、高强、耐腐蚀性等优点，已被广泛应用于既有结构的加固，而在新建结构中应用则较少。FRP是一种非金属材料，其破坏形式一般表现为线性断裂，它既不能像钢结构一样屈服耗能，也不能像钢材一样通过焊接、铆接或栓接连接，这在一定程度上限制了FRP在新结构中的应用。众所周知，梁柱节点的受力性能对保证结构体系整体受力性能非常关键，也是FRP在新结构应用中亟待解决的技术瓶颈。为此，本文系统地总结了近年来FRP新建建筑结构梁柱节点的最新研究进展，旨在为上述技术瓶颈寻找研究突破口。所述FRP新建建筑结构涉及了全FRP结构梁柱节点、FRP筋混凝土结构梁柱节点及FRP约束混凝土组合结构梁柱节点。分析了现有FRP新建建筑结构梁柱节点研究存在的不足，并对未来的研究需求进行了展望，为今后FRP新结构的研究与应用提供参考。
- 纤维增强复合材料 /
- 组合结构 /
- 梁柱节点 /
- 研究进展
Abstract: Fiber-reinforced polymer (FRP), a new composite material with advantages such as light weight, high strength, corrosion resistance, has been widely used in strengthening of existing structures but much less in new structures. As a non-metallic material, FRP is featured by its linear brittle nature and the lack of energy dissipation, as a result, new structure incorporating FRP cannot be easily connected to other structural members by welding or other measures (riveting, bolting) like in steel structures, which limits the application of FRP in new structures to a certain extent. It is well-known that the performance of beam-to-column joints is very critical to ensure the overall structural performance of a structural system, which is also the technical bottleneck to be solved in the application of FRP in new structures. To this end, this paper provided a state-of-the-art review of beam-to-column joints of FRP new building structures in recent years, in order to identify research needs for the technical difficulties. The FRP new building structures discussed herein included the beam-to-column joints of all-FRP structures, FRP bars reinforced concrete structures and composite structures based on FRP-confined concrete. The shortcomings of the existing research on beam-to-column joints of FRP composite structures were analyzed, and prospects were put forward, which could identify the research needs and provide possible solutions for the application of new structures incorporating FRP in the future.
- fiber-reinforced polymer /
- composite structures /
- beam-to-column joints /
- research progress

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