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超高层结构的简化分析研究
陈斯聪,商城豪,周云
摘 要

(广州大学土木工程学院,广州 510006)

[摘要]介绍了超高层结构去除次要构件(SMR)、等效柱(WCA)、去除次要构件与等效柱组合(SMR+WCA)和层模型(SM)四种简化分析方法,并编制了超高层结构简化分析软件。以一实际框架-核心筒超高层结构为例,先分析对比了四种简化模型结构的动力特性、计算时间以及常遇地震作用、脉动风荷载作用下的结构动力响应,再分析对比了含阻尼器的简化模型的结构响应。结果表明采用SMR+WCA简化模型的结构精度高,计算速度快,性价比最高,为消能减震方案的确定节省了成本,有一定的工程意义。

[关键词]简化分析; 超高层结构; 简化精度; 计算速度

中图分类号:TU973-2文献标识码:A文章编号:1002-848X(2018)03-0090-07

 

Simplified analysis and research of super high-rise structures

Chen Sicong, Shang Chenghao, Zhou Yun

(School of Civil Engineering, Guangzhou University, Guangzhou 510006, China)

Abstract:Four simplified analysis methods of super high-rise structures were introduced, including secondary member removed (SMR), wide-column analogy (WCA), combination of SMR and WCA and story model (SM) respectively, and simplified analysis software of super high-rise structures were implemented. A real project of super high-rise frame-corewall structure was taken as an example and four simplified model structure were analyzed and compared, including dynamic characteristics, computation time and dynamic response under frequent earthquakes and fluctuating wind loads. The structure responses of simplified structural model with dampers were compared. Results show that simplified model of combination of SMR and WCA has high precision, fast calculation and high performance price ratio. Simplified model can save cost in determination of energy-dissipation scheme, and it has certain significance in engineering application.

Keywords:simplified analysis; super high-rise structure; simplified accuracy; computation speed

 

通讯作者:周云,博士,教授,Email:zhydxs@163.com。

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