中文摘要：

试验性的研究被进行与曲折砍失败模式为严重地损坏地震的桥墩调查一种建议快速的修理技术的可行性。六个圆形的墩标本首先在曲折砍模式被测试到严重损坏并且用早力量的水泥修理了与高流动性并且碳纤维增强了聚合物(CFRP ) 。在大约四天以后，修理标本再被测试到失败。修理标本的地震行为被评估并且与原来的标本相比。测试结果显示建议修理技术是高度有效的。两个都砍当与原版相比标本，和墩的失败机制从曲折砍失败变了到可锻的曲折失败时，力量和修理的墩的侧面的排水量增加了。最后，一个简单设计模型基于为地震以后的修理设计的 Seible 明确的表达与试验性的结果相比。如果在修理的墩的螺线酒吧的 shear 力量贡献被不顾，乘更多的 FRP 表的 1.5 被提供，为桥码头在地震前加强的设计方程能对在地震以后的地震修理适用，这被结束如果在修理的墩的螺线酒吧的 shear 力量贡献被不顾。

英文摘要：

An experimental study was conducted to investigate the feasibility of a proposed rapid repair technique for severely earthquake-damaged bridge piers with flexural-shear failure mode. Six circular pier specimens were first tested to severe damage in flexural-shear mode and repaired using early-strength concrete with high-fluidity and carbon fiber reinforced polymers （CFRP）. After about four days, the repaired specimens were tested to failure again. The seismic behavior of the repaired specimens was evaluated and compared to the original specimens. Test results indicate that the proposed repair technique is highly effective. Both shear strength and lateral displacement of the repaired piers increased when compared to the original specimens, and the failure mechanism of the piers shifted from flexural-shear failure to ductile flexural failure. Finally, a simple design model based on the Seible formulation for post-earthquake repair design was compared to the experimental results. It is concluded that the design equation for bridge pier strengthening before an earthquake could be applicable to seismic repairs after an earthquake if the shear strength contribution of the spiral bars in the repaired piers is disregarded and 1.5 times more FRP sheets is provided.