(中机国际工程设计研究院有限责任公司， 长沙 410007)

［摘要］长沙市某商业办公建筑为框架-剪力墙结构体系，平面形状呈菱形，中间部分天井开洞比例达到40%。南北两侧多数楼层缺少楼板，形成典型细腰结构，仅在局部楼层设置空中花园层板连接东西侧结构，为典型的平面不规则结构。结合建筑使用功能、外观要求等对结构体系进行介绍，并针对其中的关键分析要点，如楼板温度应力分析，跃层柱屈曲分析，梁柱偏心节点分析等进行重点介绍。对结构进行抗震性能化设计，结果表明，各项指标均良好，满足抗震设计要求，在考虑经济性的同时保证了结构的安全可靠。 

［关键词］菱形内天井；温度应力；柱屈曲分析；梁柱偏心节点分析；抗震设计 

中图分类号：TU972 文献标识码：A文章编号：1002-848X(2021)21-0030-06

Structural design of a rhombic high-rise building with central patio 

LIU  Yiting,  ZHANG  Fengliang,  HU  Dengxian,  ZOU  Chao 

(China Machinery International Engineering Design & Research Institute Co.， Ltd., Changsha 410007， China) 

Abstract: A commercial office building in Changsha is a frame-shear wall structural system with a rhombic plan, and the area of the central patio is about 40% of the total floor area.The south and north sides of most stories are lack of slabs,which forms a typical slender waist structure.And the slabs of the hanging garden are only set up at specific stories to connect the east and west sides of the structure, therefore the buliding is a typical irregular plan structure. The structural system was introduced combined with the building function, appearance requirements etc.The key analysis points were focus on the temperature stress analysis of the slab, column buckling analysis, and beam-column eccentric joint analysis etc. The performance-based seismic design of the structure was introduced. The result shows that all the indicators are fine and the requirements of seismic design are satisfied, which ensures the safety and reliability of the structure while considering the economy. 

Keywords:rhombic plan with central patio； temperature stress； column buckling analysis； beam-column eccentric joint analysis； seismic design

 作者简介：刘以婷，硕士，工程师，Email:1422480457@qq.com。