南宁市某超高层结构设计与分析  

Structural Design and Analysis of a Super High-rise Building in Nanning City

作　　者：董晓明[1] DONG Xiaoming(Guangdong Architectural Design and Research Institute Group Co.,Ltd.,Guangzhou 510010,China)

机构地区：[1]广东省建筑设计研究院集团股份有限公司,广州510010

出　　处：《广东土木与建筑》2024年第12期65-68,共4页Guangdong Architecture Civil Engineering

摘　　要：以南宁市某超高层为研究对象,采用多种程序对整体结构进行了弹性时程、静力弹塑性、动力弹塑性和风振舒适度分析,并对剪力墙墙肢、转换梁、楼板进行了复核。分析结果表明,高宽比为10.9的超高层可以采用带局部转换的钢筋混凝土剪力墙结构,小震下,3条地震波作用下的层间位移角均小于《高层建筑混凝土结构技术规程:JGJ 3—2010》[1]值;大震下,框架柱和框支柱局部出现受拉刚度退化,但均未出现受压刚度退化,满足大震不屈服的性能目标;舒适度分析时,结构最大加速度0.139 m/s^(2),小于文献[1]0.15 m/s^(2)的限值;转换梁最大主压应力为22.3 MPa、转换板最大拉应力为0.77 MPa,分别小于混凝土抗压、抗拉强度设计值,满足文献[1]要求。Taking a super high-rise building in Nanning City as the research object,the elastic time history,static elastic-plastic,dynamic elastic-plastic and wind vibration comfort analysis of the whole structure were carried out by various programs,and the shear wall,transfer beam and floor were checked.The analysis results show that the super high-rise building with height-width ratio of 10.9 can adopt the reinforced concrete shear wall structure with local conversion.Under the small earthquake,the inter-story displacement angle under the action of three seismic waves is less than the Technical Specification for Concrete Structures of Tall Building:JGJ 3—2010[1]value.Under the rare earthquake,the tensile stiffness of the frame column and the frame pillar is degraded locally,but the compressive stiffness is not degraded,which meets the performance goal of non-yielding under the rare earthquake.In the comfort analysis,the maximum acceleration of the structure is 0.139 m/s^(2),which is less than the Literature[1]limit of 0.15 m/s^(2).The maximum principal compressive stress of the transfer beam is 22.3 MPa,and the maximum tensile stress of the transfer plate is 0.77 MPa,which is less than the design value of the compressive and tensile strength of the concrete respectively,and meets the requirements of Literature[1].

关 键 词：超高层 抗震性能 弹塑性 转换梁 舒适度 

分 类 号：TU973.23[建筑科学—结构工程]