回字形平面超限高层结构抗风设计研究

（RBS Architecture Engineer Design Associate，Guangzhou 510170，China）

Taking the example of a 178m high-rise shear-wall structure with rectangular-ambulatory plane in Zhanjiang, this study analyses the impact of multiple windward surfaces and internal pressure on the structure based on wind tunnel test results.At the same time, this paper focuses on elaborating the collaborative mechanism of plane deformation in super high-rise buildings with rectangular-ambulatory plane. The lateral stiffness of the structure in the weak axis is controlled by wind loads. Firstly, the comparison of lateral stiffness between isolated models of the divided planes is conducted to determine the strength difference. Then, the mechanism of coordination between horizontal/vertical deformation differences caused by lateral stiffness variation is analyzed. Finally, design recommendations are provided based on the internal force results of the components.The results indicate that the adverse effects of hollow internal pressure and multiple windward surfaces on the roof cannot be ignored in the design process; When designing the floor slab, strengthen the shear verification of weak areas and the verification of wind load combination conditions on the floor slab.