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首页> 外文期刊>Composite Structures >Bond behavior between steel bar and engineered cementitious composite (ECC) considering lateral FRP confinement: Test and modeling
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Bond behavior between steel bar and engineered cementitious composite (ECC) considering lateral FRP confinement: Test and modeling

机译：考虑横向FRP约束的钢筋与工程胶结复合材料（ECC）之间的粘结行为：测试和建模

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摘要

Engineered cementitious composite (ECC) exhibits good post-cracking resistance and ductility and its unique properties make it a viable material for increasing structural performance under severe loading conditions. To understand the bond behavior between the ECC and steel bar, direct pullout tests were conducted in this paper. A comprehensive analysis was carried out on effects of ECC strength, steel bar diameter, and fiber reinforced polymer (FRP) confinement on steel bar-ECC bonding behavior. Based on the experimental data, performances of existing bond slip models for steel bar-ECC are evaluated and a new model with improved accuracy is proposed. The proposed model considers the influence of FRP confinement on bond-slip behavior.
机译：工程水泥复合材料（ECC）表现出良好的抗开裂性和延展性，其独特的性能使其成为在苛刻的载荷条件下提高结构性能的可行材料。为了了解ECC和钢筋之间的粘结行为，本文进行了直接拉拔测试。对ECC强度，钢筋直径和纤维增强聚合物（FRP）限制对钢筋ECC粘结行为的影响进行了综合分析。基于实验数据，评估了现有的钢筋ECC粘结滑模模型的性能，并提出了一种精度更高的新模型。所提出的模型考虑了FRP约束对粘结滑移行为的影响。

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