Application And Research Viscous Dampers In The Structure Of The Seismic Effect

The seismic structure of the traditional system always by enhanced own performance to resist earthquakes.The structure of energy dissipation system is attached to the structure by energy dissipation devices (such as viscous dampers) to dissipate seismic energy to seismic purposes.Viscous dampers structure has many advantages such as simple structure, material economy, environmental impact, ease of construction, the damping effect is obvious, and is small disturbance to the original structure. Is a good shock absorber. The current extensive use of viscous dampers in civil, mechanical and other fields and achieved good economic results.This article describes several common damper, and the energy dissipation structure oft-he design method is discussed in detail, vibration analysis of the structure, principle of vise-ous dampers, analysis of viscous dampers in SAP2000 and ETABS the realization principle. This paper chooses NO.8 spectrum wenchuan earthquake wave calculation of dynamic loads on the structure.As a result of different analysis software to calculate the viscous dampers on the structu-al damping of the impact of different models,two structures are established (steel and concre-te frame structure), and make used of NO.8 spectrum Wenchuan earthquake seismic loads i-mposed on the structure, according to certain programs were set in each structure, a certain number of viscous dampers, used ETABS and SAP2000 structural analysis software to analy-sis the two struct ures, analysis of the structure of viscous dampers on the seismic structure of the process, by comparing the structure use viscous damper settings before and after under earthquake storey for the maximum displacement and maximum drift angle changes in the a-mount of viscous damper attached to verify the structure for improving the seismic preform-ance advantages. Use two kinds of structural analysis software to analyze the same model, a-nd find out the difference results of damper damping effect on the structure which calculate-d from ETABS and SAP2000software is basically the same, the former is larger than 3% to 5%.