中文摘要：

结合的纤维增强的聚合物(FRP ) 通常被用来改进圆形的增强的水泥(RC ) 的地震行为在设计实践的列。然而， FRP 夹克衫让重要压力磁滞现象在 FRP 能克服的这个加强的方法，和 pre-tensioning 完成这个问题。这份报纸论述在低周期的装载下面与对的 FRP 脱衣加强的 25 圆形的 RC 列的测试结果。FRP 脱衣， FRP 脱衣的类型和纵的加强对，轴的精液比率，预先损坏标本的度和表面处理在测试被看作主要因素。根据失败模式和标本的磁滞现象曲线，这些因素被分析在忍受能力，韧性， hysteretic 行为，精力驱散能力和另外的重要地震行为上调查他们的效果。对的 FRP 提供的起始的侧面的限制压力剥去的结果表演能有效地禁止对角线的出现和发展砍裂缝，和变化标本从的失败模式易碎砍失败到与更好的韧性弯曲或弯曲砍失败。作为结果，适用的能力，韧性，精力驱散能力和变丑，加强的标本的能力都显著地被改进。

英文摘要：

Bonding fiber reinforced polymer （FRP） has been commonly used to improve the seismic behavior of circular reinforced concrete （RC） columns in engineering practice. However, FRP jackets have a significant stress hysteresis effect in this strengthening method, and pre-tensioning the FRP can overcome this problem. This paper presents test results of 25 circular RC columns strengthened with pre-stressed FRP strips under low cyclic loading. The pre-stressing of the FRP strips, types of FRP strips and longitudinal reinforcement, axial load ratio, pre-damage degree and surface treatments of the specimens are considered as the primary factors in the tests. According to the failure modes and hysteresis curves of the specimens, these factors are analyzed to investigate their effect on bearing capacity, ductility, hysteretic behavior, energy dissipation capacity and other important seismic behaviors. The results show that the initial lateral confined stress provided by pre-stressed FRP strips can effectively inhibit the emergence and development of diagonal shear cracks, and change the failure modes of specimens from brittle shear failure to bending or bending-shear failure with better ductility. As a result, the bearing capacity, ductility, energy dissipation capacity and deformation capacity of the strengthened specimens are all significantly improved.