Seismic resistance estimation of existing turbogenerator foundation structures under ductility level earthquake impact by nonlinear static method

Maksim Zubritskiy,Maksim Bambulevich,Oleg Ushakov,Linar Sabitov,Leysan Akhtyamova

doi:10.1088/1757-899x/1030/1/012028

Abstract

The article considers the multimodal nonlinear static method as a seismic resistance estimation method of existing turbogenerator foundation structures. The object of research is the turbogenerator foundation on the Tom-Usinsk State District Power Station. The article proposes a modified algorithm for the characteristic point search by the nonlinear static method. According to the calculations results, the existing foundation structures after a partial equipment replacement and the construction site increased seismicity are operational.

Highlights

Following the successful implementation of the Power delivery contract programme (DCP) aimed at the construction of new generating capacities in the Russian power industry, the Government developed a new DCP-2 programme under which the existing old capacities in a total volume of up to 41 GW are planned to be modernized.During the first DCP programme about 15% of the total installed electric capacity in the Russian Federation was renewed
The article proposes a modified algorithm for the characteristic point search by the nonlinear static method
Recession and slow recovery of the Russian economy in 2015–2018 did not generate the estimated 4.3% Compound annual growth rate in electricity demand resulting in a power surplus on the market

Summary

Introduction

Following the successful implementation of the Power delivery contract programme (DCP) aimed at the construction of new generating capacities in the Russian power industry, the Government developed a new DCP-2 programme under which the existing old capacities in a total volume of up to 41 GW are planned to be modernized. During the first DCP programme about 15% of the total installed electric capacity in the Russian Federation was renewed. Recession and slow recovery of the Russian economy in 2015–2018 did not generate the estimated 4.3% Compound annual growth rate in electricity demand resulting in a power surplus on the market. The Government decided to take advantage of the temporary surplus of capacity and renew old thermal power generating facilities since the modernized facilities need to be temporarily.

Published under licence by IOP Publishing Ltd

Results

Discussion