摘要
进行了7根纤维布加固钢筋混凝土梁的受弯试验,考虑了无二次加载历程、加载到未加固梁极限荷载 的50%、加载到未加固梁极限荷载的50%再卸载至极限荷载的25%三种情况。试验结果表明纤维布加固梁 的开裂荷载和极限荷载有显著提高;加固前初始应力水平越高,极限荷载提高越不理想。
Seven RC beams strengthened with FRP laminates have been tested on three stress levels—no secondary load history,forcing to 50% ultimate load of the beam,forcing to 50% ultimate load and unloading to 25%.The results show that the ultimate load and crack load of RC beams strengthened with FRP increase,and the enhancement of ultimate load decreases with the increasing of stress before strengthening.
出处
《建筑结构》
CSCD
北大核心
2005年第3期30-32,27,共4页
Building Structure
基金
益阳市科研计划项目
湖南城市学院科研计划项目
