Li, L.; Li, G., and Hong, C., 2019. Multimodal vibration characteristics of long-span floor around ocean under automobile load. In: Guido-Aldana, P.A. and Mulahasan, S. (eds.), Advances in Water Resources and Exploration. Journal of Coastal Research, Special Issue No. 93, pp. 113–118. Coconut Creek (Florida), ISSN 0749-0208.

In order to improve the anti-vehicle load capacity of the long-span floor around the ocean, the multimodal vibration characteristics of the long-span floor around the ocean are analyzed, and the evaluation model of the vehicle load yield stress on the long-span floor around the ocean based on the joint evaluation of the load stress state characteristics is put forward, and the mechanical response evaluation model of the yield stress of the automobile load is constructed. The load yield response stress of long-span floor around the ocean is evaluated by combining load stress state characteristics with ultimate load. The bearing capacity of automobile load yield stress is calculated by using steel bar strength failure criterion. The multi-mode vibration energy balance equation and bending moment balance equation are established, and the three-stage load-deformation model of vehicle load response of long-span floor around the ocean is constructed. Based on the yield line theory and the internal force balance mode, the optimal design of the multi-mode vibration characteristic evaluation model of the long-span floor around the ocean is realized by the yield stress action of the vehicle load. The test results show that the model can effectively analyze the influence of vehicle load yield stress on the multimodal vibration characteristics of long-span floors around the ocean. The accuracy of Simulink simulation results and finite element simulation results are high, and the calculation results of multi-modal vibration parameters are accurate and reliable.