Research progress on seismic resistance of large-span spatial structures considering soil-structure interaction
The seismic research of large-span spatial structures considering soil-structure interaction(SSI)is of great significance for achieving precise analysis of large-span spatial structures and ensuring seismic safety of structures.In order to better apply the existing research results on soil structure interaction in large-span space structures,the research and analysis methods of soil structure interaction,SSI effect analysis of frame structures,current research status of underground soil above ground structure interaction,collaborative work between large-span space structures and lower support systems,and the impact of SSI on the dynamic performance of large-span space structures were summarized.The results indicate that the applicability of existing soil structure interaction analysis methods and calculation models for large-span spatial structures needs to be discussed.The research on the SSI effect of frame structures and the collaborative work between large-span spatial structures and lower support systems is relatively mature,and its results can be used for reference.The SSI effect of large-span spatial structures with large and complex underground structures is significant.The current research mainly focuses on numerical simulation,and the development of experimental techniques is crucial for verifying the seismic theory of soil structure interaction in large-span spatial structures.In the future,further research is needed on practical simplified calculation models and analysis methods,underground structure soil large-span spatial structure systems,strong earthquake failure collapse mechanisms and seismic isolation research,experimental research,parameter analysis,complex effect coupling,etc.