EXPERIMENTAL INVESTIGATION ON THE SEISMIC BEHAVIOR OF SEVERE EARTHQUAKE-DAMAGED GFRP TUBED REINFORCED CONCRETE BRIDGE PIERS REPAIRED WITH WRAPPED CFRP SHEETS
-
摘要: 为了研究碳纤维增强复合材料(CFRP)修复震后玻璃纤维增强复合材料(GFRP)管混凝土桥墩柱的抗震性能,对4根CFRP修复震后破坏GFRP管混凝土桥墩柱进行拟静力试验,对比修复后钢筋混凝土桥墩柱与原型桥墩柱的滞回曲线、骨架曲线、延性和耗能能力。试验结果表明,修复后的墩柱承载力和延性指标均能得到较好的恢复甚至提高。
-
关键词:
- GFRP管钢筋混凝土桥墩柱 /
- 修复 /
- CFRP /
- 延性 /
- 抗震性能
Abstract: In order to investigate the seismic behavior of earthquake-damaged GFRP (Glass Fiber Reinforced Polymer) tubed reinforced concrete bridge piers repaired with wrapped CFRP (carbon fiber reinforced polymer or plastics) sheets,four GFRP tubed RC bridge piers repaired with wrapped CFRP sheets were tested under repeat low cyclic load. The hysteresis loops,skeleton curves,ductility and energy dissipation ability of the repaired RC bridge piers were compared with those of the original piers. Research show that the bearing capacity and ductility of the repaired bridge piers can be restored or even improved.-
Key words:
- GFRP tubed reinforced concrete bridge pier /
- repairs /
- CFRP /
- ductility /
- seismic behavior
-
[2] Mirmiran Amir.Design,Manufacture and Testing of a New Hybrid Column[J].Construction and Building Materials,1998,12 (1) :39-49. Mirmiran Amirr.A New Concrete-Filled Hollow FRP Composite Column[J].Composites,1996,27 (B):263-268. [3] 崔文涛.GFRP 套管钢筋混凝土柱轴压力学性能研究[D].大连: 大连理工大学,2007: 1-2. [4] 鲁国昌.FRP 管约束混凝土的轴压应力-应变关系研究[J].工程力学,2006,23(9):98-103. [5] Shao Yutian.Fiber-Element Model for Cyclic Analysis of Concrete-Filled Fiber Reinforced Polymer Tubes[J].Journal of Structural Engineering,2005,131 (2):292-303. [6] 黄照南.CFRP 修复震后严重破坏钢筋混凝土桥墩抗震性能试验研究[D].大连: 大连理工大学,2009: 66-74. [7] 王清湘,赵鹏展,关洪波.GFRP 管混凝土柱抗震性能试验研究[J].工业建筑,2010,40(4):70-74. [8] Lehmande,Gookingse,Nacamuliam,et al .Repair of Earthquake Damaged Bridge Columns[J].ACI Structural Journal,2001,98(2):233-242. [9] Legeron F,Paultre P.Behavior of High-Strength Concrete Columns Under Cyclic Flexure and Constant Axial Load[J].ACI Structural Journal,2000,97(4):591-600. [10] Sheikh S A,Khoury S S.Confined Concrete Columns with Stubs [J].ACI Structural Journal,1 993,90(4):414-431. [11] 司炳君,孙治国.钢筋混凝土延性桥墩震后快速修复技术研究[J].大连理工大学学报,2010,50(1):93-98. 期刊类型引用(5)
1. 罗杰,李维维,任瑞,黄宗辉,熊添祥,杨华山,李源嘉,甘政权. 喷射混凝土力学性能及微观结构研究. 水电能源科学. 2025(01): 84-88 . 百度学术
2. 贾静恩,张彬. 扰动荷载下聚丙烯纤维喷射混凝土力学性能研究. 复合材料科学与工程. 2023(06): 73-79+94 . 百度学术
3. 杨国利. 利用纤维增强喷射混凝土对隧道进行初步衬砌. 水利科学与寒区工程. 2022(04): 123-127 . 百度学术
4. 陶卓. 隧道初支喷射混凝土回弹率控制研究. 科学技术创新. 2022(18): 94-97 . 百度学术
5. 王永. 基于纤维增强的隧道喷射混凝土回弹控制研究. 合成纤维. 2022(12): 69-73 . 百度学术
其他类型引用(6)
-

计量
- 文章访问数: 158
- HTML全文浏览量: 19
- PDF下载量: 49
- 被引次数: 11