Seismic response analysis for nuclear power plant considering structure foundation structure interaction effect

In the actual nuclear power plant project different plants exist in the same field is very common phenomenon, So the research on the structure-soil-structure interaction (SSSI) is the key to ensure the safety of the nuclear power project. In this paper, firstly, based on the basic damping solvent extraction method (DSEM), the interaction force between structure foundation structure is derived by considering the dynamic interaction of adjacent structures. And then the SSSI time domain analysis model is embedded into the finite software ANSYS based on User Programmable Features (UPFs). Finally, taking the engineering practice as an example, the floor response spectrum, acceleration time history, displacement time history, and the maximum acceleration curve along the height of the reactor building typical node are discussed. The results can provide provides the basis for similar nuclear power plant foundation in seismic adaptability evaluation and optimum design. (authors)