关于框架核心筒式商办建筑的优化设计研究

Research on Optimization Design of the Frame Core Tube Commercial Building

本文以一个实际工程为例,针对框架核心筒结构的核心筒尺寸减小、应用装配式构件、过多楼层不均匀开洞、荷载分型系数提高的情况,构建相应计算模型,计算分析其结构总质量、刚重比、楼层抗剪承载比;结构侧振、扭振;结构位移角等性能参数。对于受地震作用控制的框架核心筒结构,其竖向构件、楼层平面布置、结构荷载等调整,对结构的刚度、变形、抗震性能等均有不同程度的影响。

Taking an actual project as an example,in view of the reduction in the core tube size of the frame core tube structure,the application of fabricated components,the uneven opening of too many floors,and the increase of the load classification coefficient,a corresponding calculation model was constructed to calculate and analyze the total structure performance parameters such as mass,stiffness-to-weight ratio,floor shear bearing ratio;structural lateral vibration and torsional vibration;structural displacement angle.For the frame core tube structure controlled by earthquake,the adjustments of its vertical members,floor plan,structural load,etc.have different degrees of influence on the rigidity,deformation,and seismic performance of the structure.