用碳纤维布改善混凝土小型空心砌块墙体抗震性能的试验研究

Improving seismic performance of concrete block masonry walls by continuous carbon fiber sheet

通过4片碳纤维布加固混凝土小型空心砌块墙体在周期反复荷载作用下受力性能的试验,研究了用粘贴碳纤维布来增强混凝土小型空心砌块墙体抗震能力这种加固方法的有效性。本文研究了碳纤维布加固混凝土小型空心砌块墙体的受力特性,分析了碳纤维布不同用量对混凝土小型空心砌块墙体抗震加固效果的影响。在此基础上,本文提出了碳纤维布加固混凝土小型空心砌块墙体抗剪承载力的简化计算方法,可供实际抗震加固工程设计参考。

Based on the test of four small-sized hollow concrete masonry walls under cyclic loading, the effectiveness of the new measure by using the continuous carbon fiber sheet (CFS) to strengthen the small-sized hollow concrete masonry walls for improving their seismic performance is studied. The main factors such as the width of CFS strip and Xshaped strengthening manner are analyzed. A simplified design method is also presented in the paper.