基于FRP材料的片材锚固系统研究  

Anchorage system for FRP material-based sheets

作　　者：金文成[1,2] 韩庆红 付星燃[1] 万娟[1] 

机构地区：[1]华中科技大学土木工程与力学学院,湖北宜昌443100 [2]华中科技大学控制结构湖北省重点实验室,湖北武汉430074 [3]宜昌市规划局夷陵分局,湖北宜昌443100

出　　处：《华中科技大学学报（自然科学版）》2011年第8期40-42,48,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

摘　　要：在现有的纤维增强复合(FRP)材料片材的锚固技术基础上,开发出一套基于FRP材料的波形锚和相应的锚具系统.针对特定的FRP片材,设计并制作了典型的锚具样品,利用该系统在实验室进行张拉试验.试验结果表明:FRP片材破坏时,单层材料比双层的强度利用率高,FRP波形锚能正常工作,片材中的受力不均匀问题是影响和制约锚固体系的主要因素.针对实验中出现的受力不均匀问题,改进了张拉装置,且在FRP片材张拉前每隔一段距离进行涂胶固化,改进后的系统成功应用于加固工程中.On the basis of the anchorage technology for pre-stressed FRP （fiber reinforced polymer） sheets, a wave-shaped anchor made of FRP material and corresponding anchorage system were proposed. For specific FRP sheets, a set of anchorage device was designed and made. In addition, tension tests were conducted on FRP sheets with this system. The testing indicates that single-layer sheets were more effective than twin-layer when FRP sheets were destroyed, and the FRP wave-shaped anchor may work well. The main factor affecting the anchorage system was the uneven stress in sheets, to solve this problem, some methods were disposed. The stretching device was improved, and FRP sheets were glued and solidified at intervals. After that, the improved system was successfully used in the strengthening projects.

关 键 词：锚固系统 纤维增强复合材料 预应力 张拉试验 波形锚 片材 

分 类 号：U757.2[交通运输工程]