碳纤维增强复合材料约束矩形空心墩抗震性能试验研究

董振华; 韩强; 杜修力

doi:10.13204/j.gyjz201306007

碳纤维增强复合材料约束矩形空心墩抗震性能试验研究

doi: 10.13204/j.gyjz201306007

1.
北京工业大学城市与工程安全减灾教育部重点实验室,北京100124

基金项目:

国家自然科学基金项目(50908005,50938006);国家重点基础研究发展计划项目(2011CB013602)

详细信息

作者简介:
第一作者：董振华, 女, 1984年出生, 博士研究生。电子信箱：dongzhenhua2009@126.com

中图分类号: U443.22;U441.3
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- 文章访问数: 127
- HTML全文浏览量: 10
- PDF下载量: 97
- 被引次数: 0
出版历程
- 收稿日期: 2013-01-20
- 刊出日期: 2013-06-20

EXPERIMENTAL STUDY ON SEISMIC PERFORMANCE OF CFRP CONFINED BRIDGE PIER WITH RECTANGULAR HOLLOW CROSS SECTION

1.
Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education,Beijing University of Technology,Beijing 100124,China

摘要

摘要: 为了研究纤维增强复合材料(FRP)约束钢筋混凝土(RC)空心截面桥墩的抗震性能，对水平单向和双向荷载作用下，剪跨比分别为4和8的CFRP约束RC矩形空心墩进行拟静力试验。分析不同试件的破坏形态、滞回曲线、水平力和位移延性。结果表明：通过CFRP布环包约束试验空心墩的塑性铰区，可降低墩柱的破坏位置、减轻损伤程度，并改变剪跨比较小墩柱的破坏形态；明显改善水平双向荷载作用下剪跨比较大矩形空心墩的滞回性能和延性，但是对水平力的提高小于20%。
- 桥墩 /
- 碳纤维复合材料 /
- 拟静力试验 /
- 抗震性能 /
- 空心截面
Abstract: In order to study seismic performance of FRP confined RC hollow section bridge pier, quasi-static test was carried out for CFRP confined RC rectangular hollow section bridge pier with shear-span ration of 4 and 8 under horizontal unidirectional and bidirectional loads.Failure mode, hysteretic curves, lateral force and displacement of tested pier columns were analyzed respectively.The results show that through confining plastic hinge region of tested hollow bridge pier by CFRP, the failure location and damage degree are reduced, and the failure mode of tested bridge piers with lower shear-span ratio is changed;the hysteretic performance and ductility of tested bridge piers with bigger shear-span ratio are improved, however, horizontal force is only increased by less than 20%.
- bridge pier /
- carbon fiber reinforced polymer /
- quasi-static test /
- seismic performance /
- hollow cross section

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参考文献(10)

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