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Crack characteristics and damage degree of pre-damaged RC beams strengthened with CFRP under various multiple impact conditions
Journal of Building Engineering ( IF 6.7 ) Pub Date : 2024-12-11 , DOI: 10.1016/j.jobe.2024.111531 Sihai Bao, Yafang Zhang, Hao Liu, Libin Duan, Zhongxiang Guo, Xuechao Yang
Journal of Building Engineering ( IF 6.7 ) Pub Date : 2024-12-11 , DOI: 10.1016/j.jobe.2024.111531 Sihai Bao, Yafang Zhang, Hao Liu, Libin Duan, Zhongxiang Guo, Xuechao Yang
This study aims to investigate the crack characteristics and damage degree of pre-damaged RC beams strengthened with CFRP under various multiple impact conditions. RC beams strengthened with CFRP (ultimate tensile strength 3585.6 MPa) were subjected to drop-weight tests at multiple impact velocities of 5.2 m/s, 4.4 m/s, and 4.4 m/s, respectively. The crack propagation behaviors of all specimens were quantitatively analyzed under multiple impacts.
中文翻译:
CFRP加固预损伤RC梁在各种多重冲击条件下的裂纹特性和损伤程度
本研究旨在研究 CFRP 加固预损伤 RC 梁在各种多重冲击条件下的裂纹特性和损伤程度。CFRP 加固的 RC 梁(极限抗拉强度 3585.6 MPa)分别在 5.2 m/s、4.4 m/s 和 4.4 m/s 的多个冲击速度下进行了落锤试验。定量分析了所有试件在多次冲击下的裂纹扩展行为。
更新日期:2024-12-11
中文翻译:
CFRP加固预损伤RC梁在各种多重冲击条件下的裂纹特性和损伤程度
本研究旨在研究 CFRP 加固预损伤 RC 梁在各种多重冲击条件下的裂纹特性和损伤程度。CFRP 加固的 RC 梁(极限抗拉强度 3585.6 MPa)分别在 5.2 m/s、4.4 m/s 和 4.4 m/s 的多个冲击速度下进行了落锤试验。定量分析了所有试件在多次冲击下的裂纹扩展行为。