Research On Damping Performace On Reforced Concrete Frame Structure

This paper takes the actrul project of Heze Juancheng middle school comprehensive bulding as an example.The bulilding has six stories and the structure tupe is Reforced Concrete Frame Structure.The height of the bulding is 24 meters and the service life of bulding is 50 years.The fire resistant ratio is second level and the roof waterproof ratio is second level.Seismic fortification intensity of buildings is 8(0.2g)degrees and structural calculation of seismic fortification intensity of 8(0.3g)degrees.The site category is class Ⅲand the seismic ratio of structure is first level.Seismic fortification intensity of buildings is 8(0.2g)degrees,but according to the second and fourteenth articles of the Regulations on Seismic fortification of Construction Projects in Shandong Province:the seismic fortification requirements of newly built,rebuilt or expanded schools,kindergartens,hospitals,nursing homes and other construction projects should be improved on the basis of the national seismic parameters zoning map,seismic zoning map and seismic safety evaluation results.So the seismic fortification intensity need to Increase level determination.The main content of the paper is divided into the following points:(1)The paper summarizes the development of dampers and seismic isolation in recent years,the classification of dampers devices,the difference between viscous dampers and viscoelastic dampers,the restoring force model of dampers,and the principle and analysis method of dynamic elastic-plastic time history analysis.(2)The paper mainly studies the seismic performance of frame structures with shock absorbers,adopts the Yingjianke structural design software and Etabs finite element analysis software to carry out the seismic design and sub-structure design,and uses Etabs finiteelement analysis software to carry out dynamic elastic-plastic time history analysis of structures,compares and analyses the improvement of seismic performance of structures before and after shock absorbers,and advances the simulated results.According to the arrangement and analysis,and with the typical restoring force model calculation and analysis.(3)Finally,the future development prospects of shock absorption and isolation are summarized.It is hoped that the paper can play a certain reference role in the seismic design of similar frame structures in the future.