Abstract
The machine bridge has problems in many earthquake cases, such as cracking at the end of the column, excessive local displacement, and even severe damage. To improve the seismic property of the machine bridge, a new design method is proposed, namely the double-column machine bridge. The finite element analysis is used to analyze the dynamic time history of the structure, and the stress and displacement of the structure during the earthquake action are studied. In addition, the collision analysis between the machine bridges is carried out, which is based on the results of the three-dimensional finite element calculation. The results show that the double-column machine bridge has better seismic performance. Compared with the ordinary machine bridge, the displacement and stress of the new structure under the large earthquake are obviously reduced. By optimizing the structure, the collision between structures can be effectively avoided.
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