玻璃钢加固混凝土结构挠曲性能的多尺度分析

IF 1.1 4区工程技术 Q3 ENGINEERING, CIVIL

Canadian Journal of Civil Engineering Pub Date : 2024-05-08 DOI:10.1139/cjce-2024-0005

hongyu bai, Xin Yuan, Zheng Gong

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引用次数: 0

摘要

根据现有的实验数据和分析，建立了七种不同的玻璃钢条模型，包括碳纤维增强聚合物（CFRP）、玄武岩纤维增强聚合物（BFRP）、芳纶纤维增强聚合物（AFRP）、玻璃纤维增强聚合物（GFRP）、GFRP 和 CFRP 组合（G-C）、GFRP 和 AFRP 组合（G-A）、BFRP 和 CFRP 组合（B-C）以及 BFRP 和 AFRP 组合（B-A）。在静载弯曲试验中，对七种不同的玻璃纤维增强塑料条组合进行了有限元模拟分析。分析了用不同玻璃钢条组合加固的试样的弯曲行为及其影响因素。结果表明，在玻璃钢加固混凝土梁中使用 AFRP 作为玻璃钢复合筋的加固材料并不能有效提高复合筋的整体承载能力。将 CFRP 与 GFRP 和 BFRP 杆件相结合，可显著提高 FRP 杆件结构的刚度，改善混凝土梁的结构承载能力。

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Multiscale Analysis of the Flexural Performance of FRP Reinforced Concrete Structures

Based on existing experimental data and analysis, seven different FRP bar models including Carbon Fiber Reinforced Polymer (CFRP), Basalt Fiber Reinforced Polymer (BFRP), Aramid Fiber Reinforced Polymer (AFRP), Glass Fiber Reinforced Polymer (GFRP), GFRP and CFRP combined (G-C), GFRP and AFRP combined (G-A), BFRP and CFRP combined (B-C), and BFRP and AFRP combined (B-A) were established. Finite element simulation analysis was conducted on seven different FRP bar combinations under static load bending tests. The flexural behavior of the specimens reinforced with different FRP bar combinations and their influencing factors were analyzed. The results showed that using AFRP as the reinforcement material for FRP composite bars in FRP reinforced concrete beams cannot effectively enhance the overall load-carrying capacity of the composite bars. The combination of CFRP with GFRP and BFRP bars significantly increases the stiffness of the FRP bar structure and improves the structural load-carrying capacity of the concrete beams.

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来源期刊

Canadian Journal of Civil Engineering 工程技术-工程：土木

CiteScore

3.00

自引率

7.10%

发文量

105

审稿时长

14 months

期刊介绍： The Canadian Journal of Civil Engineering is the official journal of the Canadian Society for Civil Engineering. It contains articles on environmental engineering, hydrotechnical engineering, structural engineering, construction engineering, engineering mechanics, engineering materials, and history of civil engineering. Contributors include recognized researchers and practitioners in industry, government, and academia. New developments in engineering design and construction are also featured.