

DOI: 10. 7672 / sgjs2023160007
In order to carry out fine simulation and analysis of prefabricated Bailey beam, based on the fine contact simulation method of Bailey pin, a solid finite element model of Bailey beam is established, and the feasibility of numerical simulation method under linear state is verified. Through the stability analysis under different lateral support spacing, the mechanical performance of the structure is researched. The results show that the pin structure has great safety reserve. The results of finite element simulation of Bailey beam in linear state are in good agreement with the experimental data,which indicates that the refined numerical simulation method of Bailey beam is feasible. Considering the nonlinearity, the lateral support spacing of Bailey beam plays a decisive role in the instability mode of the structure.