Structural design of a Y-shaped super high-rise residential building in high-intensity seismic zone
A super high-rise residential building in Haikou,with a structural height of 149.9 meters,has a Y-shaped floor plan and is classified as an ultra-limit high-rise building exceeding B-leve height.The building adopts a shear wall structural system,with irregularities such as torsional irregularity and concave-convex irregularity.Considering the characteristics of the project and the requirements of the architectural scheme,after comparing multiple schemes,a reinforced concrete shear wall structure was chosen.The layout of the shear walls was analyzed,and measures were taken to enhance lateral stiffness,reduce torsional effects and lighten the structural weight,resulting in an optimal design.Steel members were rationally used to resist the tensile stress on walls subjected to small eccentric tension.In one direction,the building has relatively few shear walls,so corresponding structural reinforcement measures were implemented to mitigate the adverse effects of seismic activity.The analysis results show that all structural indicators meet the code requirements,achieving the intended seismic performance objectives.
high-intensity seismic zoneY-shaped super high-rise residential buildingshear wall structurewall under tension with small eccentricityunidirectional sparse wall structuretorsional effect
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