Methodology for calculation and design of earthquake-resistant vibroisolated turbine foundations

Magazine of Civil Engineering

Vladimir Tarasov¹  Anton Radaev¹  Alexey Mentishinov¹  Vladimir Lalin¹ 

[1] Peter the Great St. Petersburg Polytechnic University;

关键词: structural dynamics;    civil engineering;    structure seismic stability;    earthquake protection;    seismic resistance;    vibration insulation;    turbogenerator set foundation;    response spectra;   

DOI  :  10.34910/MCE.102.5

来源: DOAJ

【 摘 要 】

The object of research in the article is the vibroisolated foundation of a high-power turbine unit (1000 MW). World energy is developing rapidly today and there is a need to build energy facilities in areas of high seismicity. The acute question is the lack of a comprehensive methodology for calculating and designing earthquake-resistant foundations of turbine units. The article proposes a general procedure of actions aimed at increasing the seismic resistance of the foundations of turbine units. Implementation of the proposed methodology was carried out on a specific example of a vibroisolated foundation: the dependences of seismic accelerations and displacements were obtained for different variants of seismic isolation. Application of the above technique allows to reduce seismic acceleration on capacitors by more than 2 times, seismic movements of capacitors by more than 3 times.

【 授权许可】

Unknown