EXPERIMENTAL INVESTIGATION ON THE SEISMIC BEHAVIORS OF REPAIRED SERIOUSLY DAMAGED REINFORCED CONCRETE COLUMNS

Zhang Yu; Cui Xiguang; Yang Dong; Li Xiaobang

doi:10.13204/j.gyjz201107008

Volume 41 Issue 7

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2011 > 41(7): 38-41,44

MOU Kun-ting, WEI Yang, WANG Gao-fei, DONG Feng-hui, ZHENG Kai-qi. Mechanical Properties of Double-Tube Seawater and Sea Sand Concrete Columns with Built-in CFRP Tubes Under Axial Compression[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(9): 1-9. doi: 10.13204/j.gyjzG22030410

Citation:

Zhang Yu, Cui Xiguang, Yang Dong, Li Xiaobang. EXPERIMENTAL INVESTIGATION ON THE SEISMIC BEHAVIORS OF REPAIRED SERIOUSLY DAMAGED REINFORCED CONCRETE COLUMNS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(7): 38-41,44. doi: 10.13204/j.gyjz201107008

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EXPERIMENTAL INVESTIGATION ON THE SEISMIC BEHAVIORS OF REPAIRED SERIOUSLY DAMAGED REINFORCED CONCRETE COLUMNS

doi: 10.13204/j.gyjz201107008

1.
1. Shenyang Jianzhu University,Shenyang 110168,China;
2.
2. Yingkou Institute of Architectural Design,Yingkou 115000,China;
3.
3. China Construction Third Engineering Bureau Co.Ltd,Wuhan 430000,China

Received Date: 2011-02-20
Publish Date: 2011-07-20

Abstract

Abstract

Taking reinforced concrete columns which are seriously damaged as the research subjects,it is researched the seismic behaviors of the repaired columns.The concrete of columns in the plastic-hinge zone is replaced with grout material and the columns are strengthened with unidirectional CFRP.Then,the experiments are done under low-cyclic and repeated load for the strengthened columns.The cracks development and the deformations of the specimens are observed.The normal section bearing capacity of the columns is analyzed,and the hysteretic curves of loading and displacement are drawn out.Whose results are compared with the performance of the column without pretreatment in order to study the behaviors of capacity and deformability of the repaired and strengthened specimens.By contrasting the experimental values with the values calculated by The Code for Reinforcement Design of Concrete Structures(GB 503672006),the repaired and strengthened specimens are safety.Compared with the column without pretreatment under the same condition,the bearing capacity and the hysteretic area of the repaired and strengthened ones are increased,and the ductility and energy-absorbing capacity are significantly improved.
- serious damage,
- reinforced concrete column,
- plastic-hinge zone,
- bearing capacity,
- ductility

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References(9)

References

J Li, M N S Hadi. Behaviour of Externally Confined High-Strength Concrete Columns Under Eccentric Loading[J]. Composite Structures,2003,62;145-153.

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[3] Nanni A.Flexural Behavior and Design of RC Members Using FRP Reinforcement[J]. Journal of Structure Engineering, ASCE,1993,119(11);48-52.

[4] 卜良桃,王济川.建筑结构加固改造设计与施工[M].长沙;湖南大学出版社,2002;35-42.

[5] 侯发亮.建筑结构粘结加固的理论与实践[M].武汉;武汉大学出版社,2003.

[6] 赵彤,谢剑,戴自强,等.碳纤维织物补强加固混凝土结构研究(综述)[J].工程力学,2000(增刊);758-763.

[7] 王文炜. FRP 加固混凝土结构技术及应用[M].北京;中国建筑工业出版社,2007;55-65.

[8] GB 503672006混凝土结构加固设计规范[S].

[9] 崔熙光,李静轩,王帅. CFRP 加固混凝土翼缘受拉 T 形截面柱试验研究[J].沈阳建筑大学学报;自然科学版,2007(3);392-396.

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