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针对设置斜撑与不设置斜撑对底部大空间的高层建筑转换层内力分布情况进行了研究分析。分析表明未设置斜撑情况下转换大梁及边柱的弯矩和剪力较大,应力集中情况较严重,易出现强梁弱柱等不利于抗震的情形;而设置斜撑后,斜撑可以改变内力的传递方向,使转换大梁和边柱的内力减小,增强其整体抗震性能。
In order to set up the bracing and do not set the diagonal bracing on the bottom of the large space of the high-rise building transfer layer internal force distribution are analyzed. The analysis shows that the bending moment and shearing force of girders and side columns are larger when the girders are not installed, and the stress concentration is more serious, so the girders with strong girders and weak columns are not conducive to earthquake resistance. After the girders are set, the girders can be changed Internal force transmission direction, so that the conversion of beams and side columns reduce the internal force and enhance its overall seismic performance.