加强层的设置对高层框架-核芯筒结构受力性能的影响

Study on the effect of horizontal strengthened storey on the mechamic characteristics of tall frame-core wall structure

首先对设置水平加强层的框架-核芯筒高层结构在水平荷载作用下的受力性能进行了理论分析;其次利用有限元软件对加强层设在不同位置的多个模型,进行了水平地震作用下的内力计算和分析,得出了加强层的设置能有效的控制结构的侧向位移,但随之也使得部分构件的内力值突然增大的结论;最后总结出了该类高层结构在设置加强层时结构内力的一些变化规律及抗震性能,为工程设计提供了相关依据和建议。

This paper analyzes the stress behavior of the tall frame-core wall structure with strengthened stories in the lateral load behavior. Then the author utilizes finite dement program to accomplish internal force calculation and analysis to four different structure models with horizontal strengthened storey and draws the conclusion that strengthened storey can control horizontal displacement of structure and enhance internal force of partial components. At the end of the paper, some structure internal force hales and earthquake resistant behaviors of tall structure with strengthened stories are summarized,which offers related basis and suggestions for engineering design.