天津某高层建筑钢框架-偏心支撑结构设计  

Design of Steel Frame-Eccentric Support Structure for a High-Rise Building in Tianjin

作　　者：徐莉 李洁 郑耒娟 XU Li;LI Jie;ZHENG Lei-juan(China Zhongyuan International Engineering Co.Ltd.,Beijing 100089,China)

机构地区：[1]中国中元国际工程有限公司,北京100089

出　　处：《工程建设与设计》2022年第23期3-7,共5页Construction & Design for Engineering

摘　　要：以天津某高层结构为例,介绍了钢框架-偏心支撑结构设计,论述了结构选型及结合建筑功能布局的支撑布置,重点介绍了消能梁段及支撑斜杆的设计步骤。对于消能梁段,为保证较好的延性,宜设计为剪切型消能梁段,不仅延性好,且抗侧移刚度大;对于支撑设计,保证消能梁段进入塑性变形而支撑不屈服;地震反应分析,考虑了多遇地震下的弹性计算,设防地震、罕遇地震下的弹塑性计算;考察了结构的损伤顺序,符合设定的设计目标。Taking a high-rise structure in Tianjin as an example, this paper introduces the design of steel frame-eccentric support structure.The structure selection and the support arrangement combined with the functional layout of the building are discussed;the design steps of the energy-dissipating beam sections and the supporting inclined rods are mainly introduced in the component design. For the energy-dissipating beam section, in order to ensure better ductility, it should be designed as a shear-type energy-dissipating beam section, which not only has good ductility, but also has high stiffness against lateral movement. For the support design, the energy dissipation beam segment is guaranteed to enter plastic deformation and the support does not yield. Earthquake response analysis, considering the elasticity under frequent earthquakes,elastic-plastic calculations under fortification earthquakes and rare earthquakes;examining the damage sequence of the structure, which is in line with the set design goals.

关 键 词：高层建筑 钢框架-偏心支撑结构 大震性能分析 

分 类 号：TU391[建筑科学—结构工程]