
Research on distortion model of container cranes subjected to seismic load
LI Zhe;HU Ji-quan;WANG Dong
Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (20) : 164-169.
Research on distortion model of container cranes subjected to seismic load
According to the dynamic similarity theory to design the reasonable scale model, take dynamic test analysis of the container crane structure by shaking table. In the scale model, the length of each component (beam) size can be based on the size of the prototype, but the cross-section thickness cannot change according to the same scale narrowed, causing distortion model. Finite element prediction coefficient method can get the prediction coefficient which using to the distortion model predict the dynamic characteristics of prototype. In order to verify the effectiveness of distortion coefficient that obtained by the finite element prediction coefficient method, made a distortion model that the thickness of the cross-section distorted and a hammering modal test and a series of seismic sharking table tests were successively carried out. The results showed that the experimental results similar to the calculation results, the maximum acceleration and strain in the same position, distortion coefficient of prediction is reasonable.
similarity theory / scale modal / container crane structure / shaking table test / distortion model {{custom_keyword}} /
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