附加锚固法对CFRP加固RC梁的力学性能研究  

Study of RC Beams Strengthened by Externally Bonded CFRP Sheets with Additional Anchoring Methods

作　　者：刘金娥 何伟[1] 刘吉敏[1] 付婷婷 LIU Jine;HE Wei;LIU Jimin;FU Tingting(School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan Anhui 232001,China;Housing Engineering Department of General Station of Construction Project Quality and Safety Administration and Supervision,Jinhua Zhejiang 321000,China)

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001 [2]金华市建设工程质量安全监督管理总站房屋工程部,浙江金华321000

出　　处：《安徽理工大学学报（自然科学版）》2021年第1期49-55,共7页Journal of Anhui University of Science and Technology:Natural Science

基　　金：国家自然科学基金资助项目(51208005);安徽理工大学博士基金资助项目(11084)。

摘　　要：为评价各附加锚固法的优劣和CFRP加固梁式结构的延性,通过钢筋混凝土梁的抗弯加固试验,研究不同附加锚固法对加固结构综合力学性能的影响及其作用机制,并根据试验观察,提出材料利用率指标,并发展了位移延性系数指标,以解决现有研究的不足。研究结果表明,采用不同附加锚固法可提高加固梁的综合力学性能,其中混杂锚固法的抗弯加固效果最优,提出和发展的指标可较好地评价加固、锚固效果与加固结构的延性。To evaluate different additional anchoring methods and the ductility of beams strengthened by CFRP,the effects and the mechanism of anchoring methods on mechanical performance of strengthened beams are studied by the experiments.The paper proposes a material utilization ratio index and develops a displacement ductility index to solve the deficiency of the existing researches according to the experimental observation.The experimental results show that the mechanical performance of strengthened beams will be improved by additional anchoring methods,among which the strengthening effect provided by the hybrid anchoring method is the best.The proposed and developed indices are capable of evaluating the strengthening and anchoring effects,and the ductility of strengthened structures.

关 键 词：钢筋混凝土梁 CFRP加固 锚固方法 材料利用率 延性 

分 类 号：TU528[建筑科学—建筑技术科学]