Y型平面高层塔楼结构设计

Structural Design of Y-shape Plane High Rise Building in Guangzhou

广州某高层建筑项目为一栋办公及商业类建筑的复杂高层。介绍其塔楼的结构设计,该塔楼结构高度为282.90 m。考虑施工可行性及装配率要求,结构采用钢管混凝土柱框架(钢管混凝土柱+钢梁)-核心筒的结构体系。为了配合建筑功能要求,外框柱中低区采用圆钢管柱,高区采用矩形钢管柱,核心筒低区采用钢管混凝土剪力墙,高区采用钢筋混凝土剪力墙。塔楼平面为Y形平面且面积较大(长边约110 m、短边约100 m),通过对中心区域的结构刚度加强,使3个翼部协调工作,增加了结构抗侧与抗扭刚度。由于局部构件的转换,在46层、47层设置不连续的转换桁架。对结构进行大震性能化分析,使结构构件满足大震性能目标的要求。

A super high-rise tower in Guangzhou is a complex building of office and commercial buildings.Introduces the structural design of tower.,the structural height of tower is 282.90 meters.In order to meet the architecture requirements,circular CFT columns are used in middle and low zone of the frame columns,and for the high zone,rectangular CFT columns are used.For core wall system,the low zone of core adopts CFT composite shear walls,and the high zone RC walls.The plane shape of tower is Y-shape and area is greater than normal project(about 110 meters on long side and 100 meters on short side).By strengthening the structural members stiffness in central zone,the three wings work in coordination to resist lateral load.The lateral and torsional stiffness of the structure is increased.Due to local structural member transfer,discontinuous transfer trusses are used on the 46th and 47th floors.The analysis method of the structure with the performance of large earthquakes is used to make the structural members meet the requirements of the performance targets of the large earthquakes.