(湖南省建筑设计院集团股份有限公司, 长沙 410012)

摘要: 中南大学湘雅医院新院区主体结构采用带转换层的钢筋混凝土框架-剪力墙结构体系,存在扭转不规则、平面凹凸不规则、刚度突变和尺寸突变、构件间断以及局部穿层柱等 5 项超限情况。 针对结构的超限情况,结构设计制定了合理可靠的性能化设计目标,采取多项加强措施以提高重要构件及节点的设计标准,并采用多种计算软件对结构进行小震弹性分析、等效中震分析和大震动力弹塑性时程分析。 结果表明,结构体系布置合理,具有良好的抗震性能,结构整体指标、关键构件和一般构件均能满足预设的抗震性能目标。

关键词: 医疗建筑; 超限结构; 结构转换层; 抗震性能化设计; 大跨转换桁架

中图分类号:TU398. 7 文献标志码:A 文章编号:1002-848X(2022)22-0064-08

DOI:10. 19701 / j. jzjg. LS210090

Over-limit structure design of the Xiangya Hospital New Campus of Central South University

SUN Yu, GONG Lingli, WANG Shigao, MAO Jianyu, TANG Chunchao

(Hunan Architectural Design Institute Group Co. , Ltd. , Changsha 410012, China)

Abstract: The main structure of Xiangya Hospital New Campus of Central South University adopts a reinforced concreteframe-shear wall structure system with a conversion layer, which has five over-limit conditions, such as torsionalirregularity, plane concave and convex irregularity, sudden change of stiffness and size, discontinuous member and partialthrough-layer columns. In view of the over-limit conditions of the structure, a reasonable and reliable performance-baseddesign goal was established, and a number of strengthening measures were taken to improve the design standards ofimportant components and nodes. A variety of calculation softwares were used to analyze the structure for small earthquakeelastic analysis, equivalent moderate earthquake analysis and large earthquake dynamic elastic-plastic time history analysis.The results show that the structural system is reasonably arranged and has good seismic performance, and the overall indexof the structure, key members and general members can meet the preset seismic performance target.

Keywords:medical building; over-limit structure; structural conversion layer; performance-based seismic design; longspan transfer truss

∗医疗建筑标准化模块设计研究(KY0300-0000-2019-0010)。

第一作者:孙昱,学士,高级工程师,主要从事结构、BIM 及数字化设计领域研究工作,Email:32269311@ qq. com。

[引用本文] 孙昱,龚灵力,王石高,等. 中南大学湘雅医院新院区超限结构设计[J]. 建筑结构,2022,52(22):64-71. SUN Yu,GONG Lingli,WANG Shigao, et al. Over-limit structure design of the Xiangya Hospital New Campus ofCentral South University[J]. Building Structure,2022,52(22):64-71.