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水工高性能钢筋混凝土面板靶向激励响应分析

Dynamic Response Behaviors of Fabricated High-Performance Panel Under Impact Excitation

  • 摘要: 提出靶向激励接触系数(ICC),建立了水工高性能面板激励响应控制微分方程,求得靶向激励响应下的解析解,完成了水工高性能混凝土面板靶向激励响应试验与空间分布特征研究。通过靶向激励动力特性分析表明,水工高性能素混凝土面板靶向激励峰值荷载为19.546 kN时靶向激励能量实测值达到7.302 J,水工高性能钢筋混凝土面板靶向激励峰值荷载为20.253 kN时靶向激励能量实测值达到8.978 J,计算值均为8.338 J,实测值与理论计算值误差分布在3%~12%之间。进一步通过加速度空间分布特征分析得到了水工高性能钢筋混凝土面板与水工高性能素混凝土面板表现出一致的靶向激励加速度空间分布规律的研究结论。

     

    Abstract: The governing differential equation on excitation response is established for the hydraulic high-performance concrete panel based on the proposed contact coefficient of targeted excitation, and its analytical solutions obtained under the action of targeted excitation response, and then, the targeted excitation response test and spatial distribution characteristics are analyzed for this type of hydraulic high-performance concrete panel. The analysis of dynamic characteristics of targeted excitation shows that the measured value of targeted excitation energy reaches 7.302 J when the peak excitation load of HPC hydraulic panel is 19.546 kN, and 8.978 J when the peak excitation load of HPC hydraulic panel is 20.253 kN. The calculated values were all 8.338 J, and the errors ranged from 3% to 12% between the measured values and the theoretical calculated values. They show the same spatial distribution law of targeted excitation acceleration under the action of pendulum targeted excitation between the hydraulic high performance reinforced concrete panel and hydraulic high performance concrete panel.

     

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