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带加强层的框架-核心筒混合结构广泛用于超高层建筑,在高烈度地区的抗震设计中,加强层刚度的选择对结构位移和相关构件的承载力有显著影响,这也成为性能化设计中的重点,一般要通过多次调整试算才能达到合适的状态。为了减少反复调整的工作量,在设计中寻找一种简单可行的刚度评估方法,以弹性阶段刚度解析为基础,结合对位移的控制,讨论各组成部分之间的刚度协调关系,得出了这种结构的刚度评估方法和刚度参数的合理取值范围。最后,以8度区某实际的带加强层钢管混凝土框架-型钢混凝土核心筒混合结构为例,应用上述方法对此结构进行了调整优化,经弹性和动力弹塑性分析及振动台试验表明,调整后的结构更趋于合理状态。
Frame with Reinforcement - Core-tube hybrid structures are widely used in super high-rise buildings. In seismic design in high seismicity areas, the choice of stiffened stiffness has a significant effect on the structural displacement and bearing capacity of related components, which also becomes a performance-based design In the focus, generally through trial and error to adjust several times to achieve the right state. In order to reduce the workload of repeated adjustment, a simple and feasible stiffness evaluation method is proposed in the design. Based on the analysis of the stiffness of the elastic phase and the control of the displacement, the stiffness coordination among the components is discussed. Stiffness evaluation methods and stiffness parameters of a reasonable range of values. Finally, taking an actual reinforced concrete-filled steel tubular frame-reinforced concrete core tube mixed structure with 8-zone as an example, the above method is adopted to adjust and optimize the structure. The analysis of elasticity and dynamic elasto-plasticity and shaking table test show that adjusting After the structure tends to be more reasonable.