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为研究不同配筋形式和不同轴压比下全轻混凝土剪力墙的动力特性,对4片全轻混凝土剪力墙试件在拟静力试验下采用锤击方法激振加速度信号,通过对比获得的振型、频率及阻尼比等参数,分析全轻混凝土剪力墙结构在不同损伤程度下的抗震动力特性,为实际工程运用提供理论基础。研究结果表明:随着轴压比增大,结构频率增大,阻尼比减小;斜向支撑钢筋对全轻混凝土剪力墙的阻尼比及频率无明显影响。
In order to study the dynamic characteristics of all-light concrete shear walls with different reinforcement forms and different axial compression ratios, the four full-light concrete shear wall specimens were excited by the hammer method under quasi-static test, Comparing the vibration mode, frequency and damping ratio obtained, the anti-seismic dynamic characteristics of all-light concrete shear wall structure under different damage degree are analyzed, which provides a theoretical basis for the practical engineering application. The results show that with the increase of axial compression ratio, the structure frequency increases and the damping ratio decreases. However, the diagonal reinforcement does not have obvious influence on the damping ratio and frequency of all-light concrete shear walls.