(1 青岛腾远设计事务所有限公司， 青岛 266100；2 中国建筑科学研究院有限公司， 北京 100013)

［摘要］ 日照海韵广场1#塔楼采用圆钢管混凝土框架柱-钢梁+钢筋混凝土核心筒+带伸臂桁架加强层的结构体系。首先将塔楼的ETABS模型转为SAP2000模型，再将SAP2000模型导出的数据库转换为ABAQUS整体结构模型。模态分析结果表明SAP2000与ABAQUS结果基本一致。考虑2组天然波和1组人工波在7度罕遇地震作用下6个工况，分析结构的弹性和弹塑性时程反应。分析结果表明：考虑材料的弹塑性，结构最大层间位移角满足1/100的限值要求，连梁出现了不同程度的损伤，大部分剪力墙未出现损伤，仅顶部几层出现了受压损伤，损伤因子未超过0.3；圆钢管混凝土框架柱内的型钢未出现塑性应变，环带桁架钢材也未出现塑性应变，仅伸臂桁架伸入剪力墙部分出现了较小的塑性应变。同时，采用SAUSAGE进行了动力弹塑性分析，并将其结果与ABAQUS的结果进行比较。结果表明两者在变形、内力和损伤情况均较为接近，说明弹塑性模型能够准确真实地反映出结构的动力响应。 

［关键词］日照海韵广场；超高层建筑；混合结构；弹塑性时程分析；动力响应 

中图分类号：TU443 文献标识码：A文章编号：1002-848X(2021)22-0026-06

  Dynamic elasto-plastic analysis of tower 1# structure for Rizhao Haiyun Plaza  

WANG  Yang1,  JING  Yanqing1,  LI  Jianfeng1,  CHEN  Caihua2,  LIU  Yuchen1,  XUE  Mingyu1,  PAN  Yuhua2,  HU  Haitao1 

(1 Qingdao Tengyuan Design Institute Co., Ltd., Qingdao 266100， China；2 China Academy of Building Research, Beijing 100013，China) 

Abstract: Tower 1# for Rizhao Haiyun Plaza adopts a structural system of round steel tube concrete frame column-steel beam+reinforced concrete core tube+reinforced layer with outrigger truss. First, the ETABS model of the tower was converted to the SAP2000 model, and then the database derived from the SAP2000 model was converted to the ABAQUS overall structure model. The modal analysis results show that the results of SAP2000 and ABAQUS are basically the same. Considering 6 working conditions of 2 groups of natural waves and 1 group of artificial waves under the action of a 7 degree rare earthquake, the elastic and elastoplastic time history response of the structure were analyzed.  The analysis results show that considering the elasto-plasticity of the material, the maximum interlayer displacement angle of the structure meets the limit of 1/100, the connecting beams have been damaged to different degrees, most of the shear walls have not been damaged,  only the top layers have been damaged under compression, and the damage factor does not exceed 0.3. There was no plastic strain in the section steel in the concrete-filled steel tube frame column, and no plastic strain in the ring-belt truss steel. Only the outrigger truss extended into the shear wall shows a small plastic strain. At the same time, SAUSAGE was used to carry out dynamic elasto-plastic analysis, and the results were compared with the results of ABAQUS. The results show that the deformation, internal force and damage obtained by SAUSAGE and ABAQUS were relatively close, which indicates that the elasto-plastic model can accurately and truly reflect the dynamics of the structure response. 

Keywords:Rizhao Haiyun Plaza; super high-rise building； mixed structure； elasto-plastic time-history analysis； dynamic response

作者简介：王洋，硕士，高级工程师，一级注册结构工程师，Email: f4wangyangf4@163.com。