Study On Seismic Performance Of Stair Unit In Assembled Damping Staircase

The Assembled Energy-absorbing Damping Staircase proposed by the project group is a new type of staircase on the basis of cast-in-place damping staircase.It sets the partition wall as the damping wall and treats the low end of the stair as the damping basis,which forms a spatial damper.This study aims at figuring out the damping performance of the the stair board within the Assembled Energy-absorbing Damping staircase.The main contents are as follow:This study trys to figure out the damping performance of the damping basis within the Assembled Energy-absorbing Staircase by designing three test specimens: the assembled damping staircase unit with higher damping rubber basis,sliding staircase unit with sliding end and general assembled damping staircase unit.Through these three specimens,this study advances a constrastive analysis and proves the effectivenesss of the damping basis on the damping performance within the Assembled Energy-absorbing Damping Staircase and the improvement of the tilting on the vertical level.Based on the result of the constrast analysis towards the three specimens,this study also ascertains the cracking load and ultimate load of every specimens according to the their outcomes under the earthquake.Moreover,this study reveals the improvement of damping perfomance within the Assembled Energy-absorbig Damping Staircase coMpared to the other two specimens.In this study,the finite element simulation analysis software abaqus is applied to simulate the overall performance of staircase with damping wall and with ordinary wall.Therefore,the test results are coMpared with the calculated results.Consequently,the test results are in accordance with the calculated results,which indicates a more realistic model of Finite Element.Under the contrastive experiment and stimulative analysis of the assembled staircase units,this study proposes concrete suggestions to the assembled construction and the improvement towards the damping design of assembled staircase by laying the foundation on the actual conditions of producer,which gives references to relevant construction.