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    Cyclic Load Tests on Precast Segmental Bridge Columns with Both Steel and Basalt FRP Reinforcement

    Source: Journal of Composites for Construction:;2019:;Volume (023):;issue:003
    Author:
    Zhong-Kui Cai;Zhenyu Wang;Tony Y. Yang
    DOI: doi:10.1061/(ASCE)CC.1943-5614.0000944
    Publisher: American Society of Civil Engineers
    Abstract: This paper presents an experimental investigation of a novel precast segmental bridge column (PSBC) that is longitudinally reinforced with both fiber-reinforced polymer (FRP) bars and conventional steel bars. The major objectives of this study were (1) to compare the seismic performance of FRP-steel–reinforced PSBCs (FSR-PSBCs) with the conventional steel-reinforced PSBC (SR-PSBC) members; and (2) to investigate the effects of the proportion of FRP to steel reinforcement and the gravity load level on the cyclic behavior of the FSR-PSBC. To this end, quasi-static tests were conducted on four large-scale PSBC specimens with heights of 4.2 m and cross sections of 0.6×0.4  m. Basalt FRP (BFRP) bars were employed in the FSR-PSBC specimens. Test results showed that as compared with the SR-PSBC, FSR-PSBC specimens exhibited appreciably improved self-centering capacities, postyield stiffness ratios, displacement ductility, and comparable hysteretic energy dissipation abilities. Furthermore, after the FSR-PSBC specimens were cyclically loaded up to a drift ratio of 5.5%, the damages were insignificant and could be repaired rapidly, indicating promising post-earthquake serviceability of these bridge columns.
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      Cyclic Load Tests on Precast Segmental Bridge Columns with Both Steel and Basalt FRP Reinforcement

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4257334
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    contributor authorZhong-Kui Cai;Zhenyu Wang;Tony Y. Yang
    date accessioned2019-06-08T07:25:55Z
    date available2019-06-08T07:25:55Z
    date issued2019
    identifier other%28ASCE%29CC.1943-5614.0000944.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4257334
    description abstractThis paper presents an experimental investigation of a novel precast segmental bridge column (PSBC) that is longitudinally reinforced with both fiber-reinforced polymer (FRP) bars and conventional steel bars. The major objectives of this study were (1) to compare the seismic performance of FRP-steel–reinforced PSBCs (FSR-PSBCs) with the conventional steel-reinforced PSBC (SR-PSBC) members; and (2) to investigate the effects of the proportion of FRP to steel reinforcement and the gravity load level on the cyclic behavior of the FSR-PSBC. To this end, quasi-static tests were conducted on four large-scale PSBC specimens with heights of 4.2 m and cross sections of 0.6×0.4  m. Basalt FRP (BFRP) bars were employed in the FSR-PSBC specimens. Test results showed that as compared with the SR-PSBC, FSR-PSBC specimens exhibited appreciably improved self-centering capacities, postyield stiffness ratios, displacement ductility, and comparable hysteretic energy dissipation abilities. Furthermore, after the FSR-PSBC specimens were cyclically loaded up to a drift ratio of 5.5%, the damages were insignificant and could be repaired rapidly, indicating promising post-earthquake serviceability of these bridge columns.
    publisherAmerican Society of Civil Engineers
    titleCyclic Load Tests on Precast Segmental Bridge Columns with Both Steel and Basalt FRP Reinforcement
    typeJournal Article
    journal volume23
    journal issue3
    journal titleJournal of Composites for Construction
    identifier doidoi:10.1061/(ASCE)CC.1943-5614.0000944
    page04019014
    treeJournal of Composites for Construction:;2019:;Volume (023):;issue:003
    contenttypeFulltext
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