Application analysis of outer frame arch conversion in a frame tube structure
Based on TCL Advanced Semiconductor Display Industry Headquarters project,the application and analysis of using arch structure to transform outer frame column in frame-core tube mixed structure were introduced.The influence of arch structure on the lateral stiffness of the whole structure was evaluated by model comparison.According to the structural characteristics of the outer frame column of the single arch structure conversion,the internal force of the component and the stress of the floor were analyzed respectively.The shear transfer mechanism between the core tube and the outer frame arch was explored,and the corresponding structural strengthening measures were taken.Aiming at the key joints of the arch structure,a solid finite element model was established for analysis,and the debonding effect of concrete filled steel tube was considered to ensure the reasonable structure of the joints.Through reasonable floor beam arrangement and buckling analysis method,the stability of the arch structure inside and outside the plane can be ensured.The results of construction simulation analysis show that the axial tension of the floor slab on the tension beam of the arch structure can be reduced by reserving construction joints.Based on the above analysis results,it is feasible to adopt the arch structure conversion technology in the frame-core tube mixed structure,and the safety and reliability of the structure can be effectively guaranteed by the corresponding calculation analysis and construction measures.
arch structure conversionframe-core tube mixed structureslab stressfinite element analysis of jointbuckling analysisconstruction simulation analysis
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