土工基础

›› 2012, Vol. 26 ›› Issue (5): 35-39.

• 工程实录 • 上一篇    下一篇

中国华能集团某办公楼关键节点弹塑性分析

莫绍冰1,丁 为2,周忠发3,张燕平3,沈 莉3   

  1. （1.建设综合勘察研究设计院有限公司,北京 100007；2.中国华能集团公司人才基地建设管理中心,北京 102209；3.北京市建筑设计研究院,北京 100045）
  • 收稿日期:2012-09-07 出版日期:2012-10-20 发布日期:2012-10-27
  • 作者简介:莫绍冰(1972-),男，毕业于浙江大学工业与民用建筑专业，工程师。

Nonlinear ElastoPlastic Analysis of the ConnectionJoints of an Office Building Structure

MO Shaobing, DING Wei, ZHOU Zhongfa, ZHANG Yanping, SHEN Li   

  1. (1.China Institute of Geotechnical Investigation and Surveying，Ltd，Beijing 100007; 2.China Huaneng Group Talent Base Construction and Management Center，Beijing 102209; 3.Beijing Institute of Architectural Design,Beijing， Beijing 100045)
  • Received:2012-09-07 Online:2012-10-20 Published:2012-10-27

摘要： 华能集团人才创新创业基地办公楼东侧结构单元，采用混合结构体系（局部6-15轴至6-19轴为四层顶托柱转换）。因造型奇特，受力复杂，结构存在多处关键构件，如悬挑桁架与剪力墙核心筒连接处节点、球形办公室与支撑桁架连接节点等，为保证结构的安全性，利用ABAQUS分析软件，对这些关键节点进行了有限元建模，在大震工况下对关键节点的性能进行了弹塑性有限元分析。结果表明：在大震下，各关键节点除局部单元出现塑性外，节点的整体性能处于弹性状态，满足大震不屈服的抗震性能要求。

关键词: 混合结构, 节点弹塑性, ABAQUS

Abstract: The office building for Innovation Base of Huaneng Group is located at the C89 block in the south of the future Science and Technology Zoning Area, Changping District of Beijing. It is at the south of bank of Wenyu River and south side of North Seven Avenue. The east unit of this building is a mixed structure (the top four floors at Bays 6-15 and Bays 6-19 are column supported). Due to its irregular structural shape and the complicated loading scheme, the seismic performance of the key structural connection components, such as, the connection between the cantilever truss and the shear wall core; the joints between the spherical office and the supporting truss; are analyzed with the elastoplastic approach using ABAQUS finite element software. The results indicate that, under the design seismic intensity, except for the local plastic zones occurred at the key joints, the overall joints are typically within the elastic zone. The analytical results meet the seismic requirement of nonyielding structural components.

Key words: Mixed structures, Elastoplastic Analysis of Connection Joints, ABAQUS Software