不同形状玻璃纤维增强聚合物钢筋在混凝土柱中的性能

IF 1.2 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Proceedings of the Institution of Civil Engineers-Structures and Buildings Pub Date : 2021-11-12 DOI:10.1680/jstbu.20.00242

Afaq Ahmad, M. Elchalakani, M. Iqbal, Yimou Huang, G. Ma

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引用次数: 0

摘要

对不同形状的玻璃纤维增强聚合物筋和不锈钢箍筋配筋混凝土柱在同心荷载作用下的极限受力性能进行了研究。对6根方截面柱进行浇筑，考察不同配筋方式对结构的影响。结果表明，钢筋材料、形状和箍筋间距对其破坏模式有一定的影响。在所有试件中，钢筋柱具有更高的承载能力和更好的延性，其次是l形钢筋，然后是圆形钢筋。较小的螺旋间距提高了约束效率和延展性，并对纵向聚合物棒屈曲提供了足够的约束。对有限元模型也进行了校正，结果与实验测量结果非常吻合。在标定模型的基础上，对数值参数进行了研究，以进一步了解玻璃纤维增强聚合物增强复合柱的性能。

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Performance of variously shaped glass-fibre-reinforced polymer bars in concrete columns

An investigation was carried out into the structural performance of concrete columns reinforced with various shapes of glass-fibre-reinforced polymer bars and stainless-steel stirrups under concentric loading at ultimate limit state. Six square-section columns were cast to investigate the effects of different reinforcement types. The results showed failure modes depended on reinforcement material, shape and stirrup spacing. Across all specimens, steel-reinforced columns had higher loading capacity and better ductile performance, followed by L-shape and then round polymer bars. Smaller spiral spacing increased confinement efficiency and ductility and provided sufficient restraint against longitudinal polymer bar buckling. Finite-element models were also calibrated, and the results were in close agreement with experimental measurements. Based on the calibrated models, numerical parameters were studied to understand further the behavior of composite columns reinforced with glass-fibre-reinforced polymer.

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来源期刊

Proceedings of the Institution of Civil Engineers-Structures and Buildings 工程技术-工程：土木

CiteScore

3.40

自引率

6.20%

发文量

审稿时长

12 months

期刊介绍： Structures and Buildings publishes peer-reviewed papers on the design and construction of civil engineering structures and the applied research associated with such activities. Topics include the design, strength, durability and behaviour of structural components and systems. Topics covered: energy conservation, people movement within and around buildings, strength and durability of steel and concrete structural components, and the behaviour of building and bridge components and systems