(清华大学土木工程系 北京 100084)
［提要］ 为研究自密实混凝土板墙加固低强度砂浆砖砌体的抗剪性能，共做了6个墙体加固试件。通过改变竖向压力、单双面加固、配筋形式等参数，研究了不同条件对试件加固性能的影响。试验结果表明，低强度砖砌体经自密实混凝土板墙加固后，抗剪承载力和抗侧刚度都有大幅度提高，其中抗剪承载力提高80%～160%。加固后墙体具有良好的延性，滞回耗能能力增强。通过对试验结果的分析研究并与其他类似试验进行对比，提出了加固后墙体的抗剪承载力计算公式。
［关键词］ 砖砌体加固   自密实混凝土  混凝土板墙  抗剪强度
Experimental Study on Low Strength Brick Masonry Wall Strengthened with Selfcompacting Concrete Wall/Fu Jie,Wang Zhihao(Civil Engineering Department of Tsinghua University, Beijing 100084, China)
Abstract:The shear behaviors of the low strength brick masonry wall strengthened with the
 selfcompacting reinforce concrete wall have been discussed by 6 experimental models.The experiment provides the data of the strengthening behaviors under different conditions. The major factors are vertical stress, number of strengthening sides, and the quantity of the reinforce. The experimental results show that the strengthened masonry walls have better shear capacity and lateral stiffness. The shear capacity increases 85%～160%. The ductility ratio and dissipative capability of the strengthened walls also increase. According to the analysis of the experimental data, and compared to other similar experiments, some formu
las for shear capacity calculated  are given.
Keywords:strengthened brick masonry wall; selfcompacting concrete; reinforce concrete wall; shear capacity