(启迪设计集团股份有限公司, 苏州 215021)

摘要: 苏州某轨道交通控制中心作为设计使用年限为 100 年的重点设防类建筑,在构件尺寸控制、结构体系选取及保护层厚度选取等方面有其自身的特殊性. 针对以上难点进行了分析并采取了相关措施,如改变结构体系、剪力墙中增设型钢等. 系统地阐述了本工程的抗震设计思路:小震作用下采用两个不同软件对结构整体进行计算分析对比,并对特殊部位补充了弹性时程分析;中震作用下对各部位关键构件制定了合理的性能目标,并进行了针对性设计及加强;大震作用下采用静力弹塑性方法进行了极限承载能力下的变形分析. 结果满足“小震不坏、中震可修、大震不倒”的抗震要求,保证了结构体系抗震性能的安全性、合理性、可靠性. 通过以上措施及相关分析表明:结构的各项指标均满足规范要求,结构安全可靠.

关键词: 轨道交通控制中心; 抗震设计; 时程分析; 性能化设计

中图分类号:TU398. 7 文献标志码:A 文章编号:1002⁃848X(2022)07⁃0118⁃05

DOI:10. 19701 / j.jzjg.SZY2123

Seismic design of the structure of a rail transit control center in Suzhou

ZHU Liming, ZHANG Min, ZHU Yi

(Tus⁃Design Group Co., Ltd., Suzhou 215021, China)

Abstract: As a key fortified building with a design service life of 100 years, a rail transit control center in Suzhou has itsown particularities in terms of component size control, structural system selection and protective layer thickness selection.The above difficulties were analyzed and relevant measures were taken, such as changing the structural system, addingsection steel in the shear wall, etc. Systematically expounding the seismic design ideas of this project: under the action ofsmall earthquakes, two different software were used to calculate, analyze and compare for the overall structure, and theelastic time history analysis was carried out for supplement special parts. Reasonable performance targets were formulated forthe key components of each part under the action of moderate earthquakes, and targeted design and reinforcement werecarried out. Under the action of large earthquakes, the static elastic⁃plastic method was used to carry out the deformationanalysis under the ultimate bearing capacity. The results meet the seismic requirements of " no damage in smallearthquakes, repairable in moderate earthquakes, and no collapse in large earthquakes" , which ensures the safety,rationality and reliability of the seismic performance of the structural system. The above measures and related analysis showthat all the indexes of the structure meet the requirements of the specification, and the structure is safe and reliable.

Keywords:rail transit control center; seismic design; time⁃history analysis; performance⁃based design

第一作者:朱黎明,硕士,高级工程师,主要从事结构设计工作,Email:287613563@ qq.com.

[引用本文] 朱黎明,张敏,朱怡. 苏州某轨道交通控制中心结构抗震设计[ J]. 建筑结构,2022,52(7):118⁃122.ZHU Liming,ZHANG Min,ZHU Yi. Seismic design of the structure of a rail transit control center in Suzhou[ J]. BuildingStructure,2022,52(7):118⁃122.