| Accompanied by the rapid growth of economy and the pursuit of higher life formaterial and cultural, space grid structure to become more successful structural formsat home and abroad, because of its good advantage, like high degree ofindustrialization, structural performance and building sleek. From the current study, thetheory and engineering applications are mature, but there are some important issuesshould be studied in the research and application process. Limited to the lack ofrelevant theory and design methods, the impact of the interaction between the twostructures has not been fully considered, the result will be structural safety is notreliable or a huge waste of economic. For the space trusses-concrete frame hybridstructure, research the relationship is considerable practical significance to structuralengineers.Based on existing theories of space trusses-concrete frame hybrid structure，combination of actual cases, establish the overall analysis models. Using one-way andmulti-dimensional earthquake time history analysis method, analysis the vibrationcharacteristics, study of the structure internal force and displacement under theearthquake wave. The results showed, The collaborative work between structure of theupper and the lower parts should be considered in the structure of seismic calculation，if the collaborative work between structure of the upper and the lower parts are notconsidered, so the results may result large difference. The elastic support model whichconsiders the elastic effect and inertia effect of the supporting structure can effectivelysimulate the impact of the lower supporting part to the grid; the equivalent stiffnessslab model can be a reasonable simulation the impact of the grid to the lower supporting part. In summary, reasonable simulation assumptions can providereasonable ideas and design basis sometimes. |
