The Dynamic Response And The Whole Process Analysis On Plate Rubber Supporting Seat In Shell Structure

Large span space structure is one important indicator of the level of national construction science and technology development. Spatial structure has some advantages of reasonable force, integrity and good stability, good seismic performance, attractive appearance.Therefore, more and more architect like this structure in a practical project.Shell structure as the spatial structure of a vital structure, the surface can have a reasonable structure, uniform power flow so that the structure has a large stiffness, small deformation, stability advantages, coupled with a beautiful shape , Whether the construction plane, shape and form to give designers full creative freedom, in the span of the project application is very extensive. With the large span and large space requirements, but in the process of building also have many of the problems, particularly produced a strong horizontal shear to the impact of significant substructure in the upper shell. So plate rubber supporting seat are used to reduce the impact of shear in many projects. This paper make some performance analysis of plate rubber supporting seat.1,Firstly, the flat rubber supporting seat in Engineering, respectively increase 4 and 8 bolts were analyzed by different situations in the above flat rubber supporting seat, which made comprehensive understanding of the work process using flat rubber supporting seat in large span shell structure.2,It make the dynamic performance analyze used containing bolts rubber supporting seat in large span shell structures, established model with the substructure and the whole model of the substructure columns pillars, flat rubber bearing and the shell structure, make analyze modal analysis and performance under the earthquake analysis these two models, and dynamic response analysis of different levels of stiffness rubber supporting seat. The results showed that: it increase bolts in plate rubber supporting seat of the project used in large span shell structure, can be effective against generated horizontal shear in the upper shell. Under the action of the three earthquake, it can effectively reduce shell internal forces, the horizontal displacement and the column capitals at the end of the shear, but the increase the shell cross-deflection;it is firstly increased and then decreased about shell internal forces, the horizontal displacement and the column capitals at the end of the shear with different Level stiff.