Structural design and analysis of a high-rise building with connected conversion truss in Shenzhen
The main structure of a high-rise over-limit building in Shenzhen is a frame shear wall structure,and the connecting parts are steel trusses and steel frame structures.Five trusses were installed at the bottom of the connected structure to support the load of 9 floors,including the current floor and the upper steel frame.Based on the characteristics of the project,corresponding seismic performance targets have been set for the main structure.YJK and ETABS softwares were used for overall analysis of the structure under frequent earthquakes.YJK software was used for elastic time history analysis under frequent earthquakes and equivalent elastic analysis under seismic fortifications and rare earthquakes.SAUSAGE software was used for dynamic elastoplastic analysis under rare earthquakes,and all indicators met the design requirements.Due to the connected truss conversion structure into a key component of the structure,it was strengthened and supplemented with analysis of various working conditions based on its stress characteristics.The results show that the structure has good stress performance.Buckling analysis was conducted on the through layer column to ensure that the calculated length of the through layer column meets the design requirements.
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