The structural height of Xiangyang Building is 249.6 m,with a total of 58 floors above ground,a frame-core tube structural system is adoptd,which has the characteristics of segmented folding columns,unilateral setback of core tube,high-level conversion,coupling beam supporting floor beam and so on.In view of the key and difficult points in the structural design process,through reasonable calculation analysis and strengthening measures,the safety problems of horizontal members,core wall and transfer members connected with segmented folding columns were ensured,and a new type of segmented coupling beam was used to solve the design problem of floor beam supported on coupling beam.The elastic and elastic-plastic checking results show that the structure meets the expected seismic performance objectives,and the structural measures are reasonable and reliable,the structural design is safe and reasonable.
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