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Influence of steel corrosion on axial and eccentric compression behavior of coral aggregate concrete column
Frontiers of Structural and Civil Engineering ( IF 3 ) Pub Date : 2021-12-24 , DOI: 10.1007/s11709-021-0786-9
Bo Da 1, 2, 3, 4 , Xiao Chen 1 , Yan Chen 2 , Da Chen 2, 3 , Bo Yu 4 , Hongfa Yu 5 , Haiyan Ma 5 , Zhangyu Wu 5 , Jianbo Guo 5
Affiliation  

To study the behavior of coral aggregate concrete (CAC) column under axial and eccentric compression, the compression behavior of CAC column with different types of steel and initial eccentricity (ei) were tested, and the deformation behavior and ultimate bearing capacity (Nu) were studied. The results showed that as the ei increases, the Nu of CAC column decreases nonlinearly. Besides, the steel corrosion in CAC column is severe, which reduces the steel section and steel strength, and decreases the Nu of CAC column. The durability of CAC structures can be improved by using new organic coated steel. Considering the influence of steel corrosion and interfacial bond deterioration, the calculation models of Nu under axial and eccentric compression were presented.



中文翻译:

钢筋腐蚀对珊瑚骨料混凝土柱轴心和偏压行为的影响

为研究珊瑚骨料混凝土(CAC)柱在轴向和偏心受压下的受压行为,测试了CAC柱在不同类型钢筋和初始偏心距(e i)下的受压行为,以及变形行为和极限承载力(N u ) ) 进行了研究。结果表明,随着e i 的增加,CAC 柱的N u 呈非线性减小。此外,CAC柱内钢腐蚀严重,降低了钢截面和钢强度,降低了N uCAC 列。CAC 结构的耐久性可以通过使用新的有机涂层钢来提高。考虑钢腐蚀和界面结合劣化的影响,提出了轴向和偏心压缩下N u的计算模型。

更新日期:2021-12-24
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