碳纤维布加固钢筋混凝土梁的试验分析  

RESEARCH ON THE BONDING STRENGTH OF RC BEAMS STRENGTHENED WITH CARBON FIBER REINFORCED POLYMER

作　　者：王春倩[1] 刘胜光 

机构地区：[1]山东滨州技术学院,山东滨州25600 [2]山东省滨州市规划设计研究院,山东滨州256600

出　　处：《建筑技术开发》2008年第9期1-2,25,共3页Building Technology Development

摘　　要：本试验预制了6根混凝土适筋梁,梁净跨1.8 m,加固方法采用直接粘贴碳纤维布并沿试件长度方向等间距布置,两端未加任何锚固措施。采用竖向静力两点加载体系,合适的剪跨,采用改变混凝土强度、碳纤维布的粘结层数等参数进行了较系统的试验。测得的主要试验数据有:梁跨中挠度、加载千斤顶荷载、梁底纵筋跨中的应变、碳纤维布应变分布与受拉钢筋的应变分布。The paper is based on the experiment of flexural strengthening for oneway RC beams. The beams is 1. 8m long, properly reinforced. The load system is statically one, and transfers bad through two points to the Beams. Use proper shear span,and specimens are all flexural failure. The paper puts concentration on the analysis of the strain of CFRP and stretch reinforcement at the middle point, and deflection of mid - span of specimen, makes a little study on the procedure of debonding. The specific influence of different strengthening styles to the flexural performance are discovered.

关 键 词：碳纤维布 加固 设计方法 裂缝 反向加载 

分 类 号：TU375.1[建筑科学—结构工程]