【摘要】 混凝土的阻尼功能对于提高结构稳定性、安全性和耐久性以及防震减灾等具有重要意义。本文通过实验模态方法,分析了不同约束条件下混凝土构件阻尼比和固有频率的变化规律,研究了在周围介质发生改变时构件的动态特性。实验结果表明,随着约束的增强混凝土构件阻尼比是相应增大的,但是固有频率基本保持稳定。更多还原

【Abstract】 Concrete damping function in improving the structure stability, safety and durability, and mitigation of earthquake disasters, etc. It is of great significance. In this article, through concrete members under the conditions of different compliance support damping ratio and natural frequency of the experimental research, find out in the outside support under the condition of the dynamic characteristics of components. The experimental results show that with the increase of support flexibility concrete member is damping ratio increases accordingly, but the basic natural frequency stability.更多还原