Seismic Design Of Centralized Control Building Of Large Thermal Power Plant In High Intensity

Earthquake activity occurs more and more frequently in different countries,and at the same time it also leads to the destruction of a large number of buildings.Thermal power plants are an important infrastructure for the city and are responsible for the electricity needs of all walks of life.The centralized control building is the control center of the entire thermal power plant.It is equipped with various precision instruments and remote control equipment to control the entire power generation process.Therefore,it is particularly important for the seismic research of the centralized control building in the high intensity area.Avoiding the destruction of the centralized control building due to the earthquake,causing large-scale power outages,causing communication power interruption,seriously undermining the order of urban economic production;therefore,the seismic performance of the centralized control building itself has been valued by various countries.In view of the seismic performance of the building structure,the previous structure adopts the passive seismic method to enhance the performance of the building to resist the earthquake,so as to meet the building fortification requirements.In recent years,seismic response has been controlled by attaching energy absorbing devices such as viscous dampers to the building itself.This new type of active defense technology is increasingly favored by engineers from all over the world.The paper describes the basic principles of viscous dampers and displacement dampers,and briefly discusses the basic structure and restoring force models of several dampers.The paper takes the 8-layer steel frame as the research object,and uses the SAP2000 software to establish the uncontrolled model and the damping model.The viscous damper is attached to the steel frame to construct the structural damping energy dissipation system.The modal analysis of the uncontrolled model and the damping model,dynamic time history analysis under multiple earthquake conditions and rare earthquakes.By comparing the interlaminar shear force,inter-layer displacement,maximum acceleration and inter-layer displacementangle of the shock-absorbing structure and the uncontrolled structure,the dynamic characteristics and seismic response characteristics of the damping model and the uncontrolled model are studied,and the comparative analysis is performed under the action of earthquake.The influence of the damper on the structure is used to verify the damping performance of the viscous damper in the structure under the action of multiple earthquakes and rare earthquakes.