预应力CFRP筋夹片-套筒型锚具的试验研究  

Experimental Study of the Wedge-sleeve Anchorage of CFRP Tendons

作　　者：詹界东[1,2] 杜修力[2] 王作虎[2] 

机构地区：[1]东北石油大学土木建筑学院,黑龙江大庆163318 [2]北京工业大学建筑工程学院,北京100124

出　　处：《北京工业大学学报》2011年第5期713-717,共5页Journal of Beijing University of Technology

基　　金：国家自然科学基金重点项目资助(50838001);国家'十一五'科技支撑项目资助(2006BAJ27B04)

摘　　要：以减少夹片与FRP筋之间接触应力峰值为基本思路,提出了一种预应力CFRP筋夹片-套筒型锚具,并对此类锚具系统的静载锚固性能、疲劳性能及周期荷载性能进行了试验.结果表明,锚具各部分能协同工作,形状保持良好,锚具组装件静载锚固效率系数均大于等于0.95,疲劳及周期荷载性能优良,能有效地锚固试验中所用的CFRP筋.To reduce stress peak value between wedge and CFRP tendon,a new wedge-sleeve anchorage of CFRP tendon is developed.The anchoring capacities of the new wedge-sleeve anchorage of CFRP tendon under static loading,fatigue loading and periodic loading are tested.The experimental results show that various parts of the anchorage can coordinate to work,while,the anchorage efficiency coefficients of anchor assembly under static loading are more than 0.95,and the fatigue performance and periodic performance are excellent.The improved wedge-sleeve anchorage can efficiently anchor the used CFRP tendons and has potential engineering application.

关 键 词：碳纤维筋(CFRP筋) 夹片-套筒型锚具 锚固效率 

分 类 号：TU375.4[建筑科学—结构工程]