地王大厦强震动监测与动力分析

Strong motion Monitoring and Dynamic Analysis of Diwang Plaza

基于深圳地王大厦强震动台阵实时监测系统记录到的两次地震作用下不同结构层振动响应数据,计算得到了地面以上各测点楼层与基底响应之间以及各加强层相邻两测点之间的传递函数,分析了地王大厦弹性阶段的动力反应规律和水平加强层对结构抵抗侧向变形的影响。结果表明:水平加强层能有效增强结构整体抗侧移能力,但同时会引起结构内力突变,从而形成薄弱层,因此需合理设置结构加强层。

Based on the vibration response data of different structural layers under two earthquakes recorded by the real-time monitoring system of strong motion array of Shenzhen Diwang Plaza, the paper calculated the transfer functions between each measuring point above the ground floor and the basement as well as the transfer functions between neighboring floors near the strengthened stories, and analyzed the dynamic responses and the influence of the horizontal strengthened floor on structural lateral deformation of Diwang Plaza. The results show that the horizontal strengthened story can effectively enhance the overall lateral capacity of the structure.However, it can also cause internal force mutation of the structure, and form a weak floor. Therefore, the strengthened story should be setted reasonably.