Numerical Simulation And Monitoring Of Isolation Structure Construction In Tianjin Binhai General Hospital

Earthquake may lead to structural damage to some components of damage,and even lead to the collapse of the structure,resulting in casualties and property damage.At present,the isolation structure has been proved to be very good to resist the earthquake,but the existing seismic isolation structures are mostly used in hard sites,in weak field applications less.In this paper,we will complete the monitoring of the deformation of the isolation base with the isolation structure of the seaside Tianjin Binhai general hospital under construction.Combining with the finite element analysis,the paper gives some suggestions on the construction of the isolated structure in the weak site.The main work of this paper is as follows:(1)Based on the national code,combined with the construction plan of seismically isolated structure of Tianjin Binhai General Hospital,the deformation monitoring plan of the isolation bearing was developed.The deformation of the isolation bearing during the construction was monitored according to the monitoring program.Deformation during construction.(2)The effects of temperature and concrete shrinkage,the "arching" effect caused by uneven construction of isolation bearings,and the influence of different construction sequences on the deformation of the isolation bearing are analyzed.By using the stage construction method,The influence of the raft thickness on the settlement of the isolation bearing is also contrasted and the deformation of the isolation bearing during the construction is also proposed.(3)The nonlinear time history analysis of the finite element model of the isolated structure is carried out by considering the pile-soil-structure interaction by using the Winkler elastic foundation beam assumption and the "M-value method".Considering this,the pile-soil-structure interaction The results show that the pile-soil-structure interaction on the soft site will have a negative effect on the isolation effect of the isolated structure,but this effect can be achieved by rationally arranging the base isolation bearing and the way of the damper is improved,the isolation structure is applied to the soft site.