基于信息熵的钢筋混凝土梁非线性分析

利用线性运动方程和非线性运动方程计算出钢筋混凝土梁在考虑材料非线性以及材料非线性带裂缝时,在脉冲激励作用下自由振动时对应的加速度响应值,通过改变脉冲激励、刚度、阻尼以及非线性系数,分析比较了在不同非线性程度下的加速度响应下所对应的小波时间熵的变化规律,从而反映钢筋混凝土梁运动方程的非线性程度。为小波时间熵识别非线性程度在土木工程损伤领域中的应用提供了相关依据。

Nonlinear Analysis of Reinforced Concrete Beam Based on Information Entropy

Using linear equations of motion and the nonlinear motion equation to calculate the reinforced concrete beam when considering material nonlinearity and material nonlinearity with crack,under the action of pulse excitation free vibration acceleration response of the corresponding values,by changing the pulse excitation,stiffness,damping and nonlinear coefficient,analysis and comparison under different degree of nonlinear under the acceleration response of the corresponding wavelet time changing law of entropy,which reflect the extent to which the equations of motion of nonlinear reinforced concrete beam.As the wavelet entropy to identify nonlinear time damage degree in civil engineering in the field of applied to provide the suggestion.