广州生物岛南区地块塔楼A结构设计

Structural Design of a Tower of Biology Island South Area in Guangzhou

广州生物岛南区地块塔楼A结构高度181.5m,主体结构采用钢筋混凝土框架柱+核心筒的结构体系。综合考虑项目结构体系特点、超限程度,主楼结构抗震性能目标定为C级,对该项目进行了整体结构弹性计算、弹性时程分析和性能目标验算,同时采用ABAQUS软件进行了罕遇地震作用下的弹塑性时程分析,最后结合计算结果提出针对性的抗震加强措施,确保结构安全可行。

The A tower of Biology Island South Area with height of 181.5 meter adopts reinforced concrcete frame-core tube strcture.The C level of performance objective was selected for the seismic performance with taking into account the structural system characteristic,ultra limited extent and analysis results. The elastic analysis,linear-elastic dynamic time-history analysis and performance objective checking were carried on. At the same time,using the ABAQUS software to analyze inelastic dynamic time-history analysis of the entire structure. Finally,combining the results of calculation and analysis,put forward the strengthening measures to ensure the structural safety and feasibility.