既有无筋砌体抗剪强度的试验研究

Research on experiments of shearing strength of existing masonry without reinforcement

对11个双剪模型试件进行了抗剪试验,测得了剪应力随正应力的变化规律,分析了不同的法向压应力对既有无筋砌体抗剪破坏形态及抗剪强度的影响,研究结果表明法向压应力是其重要的影响因素。

The paper undertakes the shearing experiment on 11 trial parts of twin-shear models, surveys the change rules for the shearing force according to the normal stress, analyzes the influence of different normal compressive stress on the damage forms and shearing strength of the existing masonry without reinforcement, and proves the normal compressive stress is an influential factor.