Numerical analysis in SCAD Office of the Soil-Structure Interaction importance

7th International Symposium Actual Problems of Computational Simulation in Civil Engineering

土木建筑工程;计算机科学

Nuzhdin, L.^1,2 ; Mikhaylov, V.^1,3 ; Yankovskaya, I.^4

Novosibirsk State University of Architecture and Civil Engineering, 113 Leningradskaya st., Novosibirsk

630008, Russia^1

Perm National Research Polytechnic University, 29 Komsomolsky av., Perm

614990, Russia^2

SCAD Office Scientific and Technical Support Center, Narymskaya st. 23, Novosibirsk

630132, Russia^3

Siberian Structural Design and Research Institute, 405, Baikalskaya st., Irkutsk

664075, Russia^4

关键词: Engineering design;    Free-field motions;    Ground surfaces;    Reverse effects;    Seismic condition;    Seismically active region;    Soil-Structure Interaction effects;    Stress condition;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/456/1/012023/pdf
DOI  :  10.1088/1757-899X/456/1/012023

来源: IOP

【 摘 要 】

The purpose of the research is to determine the scope of civil engineering design tasks to decide whether it is necessary to take into account the Soil-Structure Interaction (SSI) effects in seismically active regions. The analysis of SSI effects' significance was carried out by two methods with very close results. It indicates the need to account not only the effect of the soil motion on the structure, but also the reverse effect of the structure oscillations on the soil motion. The presence of the inverse effect introduces changes in the soil motion as compared to the free field motion of the ground surface with the same seismic conditions. This leads to the fact that free field motion accelerograms should be adopted to appropriate stress conditions, the depth of the foundation bottom and modified stiffness of the subgrade.