Effect of Polypropylene Fiber Reinforced Cement Composite and Steel Fiber Reinforced Concrete for Enhancing the Seismic Performance of Bridge Columns
Effect of Polypropylene Fiber Reinforced Cement Composite and Steel Fiber Reinforced Concrete for Enhancing the Seismic Performance of Bridge Columns
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DOI：
10.1080/13632469.2011.569051
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发表时间：
2011-01-01
影响因子：
2.6
通讯作者：
Nakayama, Manabu
中科院分区：
文献类型：
--
作者：
Kawashima, Kazuhiko;Zafra, Richelle;Nakayama, Manabu
本文介绍了采用聚丙烯纤维增强水泥复合材料（PFRC）、钢纤维混凝土（SFRC）和钢筋混凝土（RC）与高强纵筋组合的缩尺桥梁柱的抗震性能。柱承受轴向和双侧循环荷载的组合。与RC柱相比，PFRC和SFRC的使用减轻了保护层和核心混凝土的破坏、纵筋的局部屈曲和拉杆的应变。PFRC的损伤缓解和侧向约束效应均优于SFRC，且具有上级效果。虽然PFRC和SFRC降低了损伤，但它们的抗弯强度和延性能力与RC柱相似。
This article presents the seismic performance of scaled bridge columns using polypropylene fiber reinforced cement composite (PFRC), steel fiber reinforced concrete (SFRC), and reinforced concrete ( RC) in combination with high strength longitudinal bars. The columns were subjected to combined axial and bilateral cyclic loading. Use of PFRC and SFRC mitigated damage of cover and core concrete, local buckling of longitudinal bars and strains induced in ties compared with the RC column. Damage mitigation and lateral confinement effect was superior in PFRC than SFRC. While PFRC and SFRC reduced the damage, their flexural strength and ductility capacity were similar with the RC column.