（江苏省建筑设计研究院有限公司， 南京 210019）

［摘要］南京江北图书馆主体结构高度40-0m，采用钢框架结构体系，建筑平面由东西两个分区组成，东西单体于3～6层仅有两道连廊连接，单个连廊宽度约为5m，结构内存在东西单体变形协调、连廊薄弱连接、大跨桁架转换、大悬挑、斜柱、穿层柱等情况，为复杂超限高层。阐述了本项目的结构体系、分块刚体模型及其性能化目标。全面介绍了结构设计中的关键技术问题，包括反应谱分析、弹性时程分析、楼板应力分析、人致振动舒适度分析、节点分析等。结果表明，结构整体设计满足设定的性能目标及规范的相关要求。

［关键词］南京江北图书馆； 复杂超限高层； 分块刚体； 空间结构； 人致振动舒适度分析； 节点分析

中图分类号：TU318文献标识码：A文章编号：1002-848X(2019)24-0024-05

Structural design of   Nanjing Jiangbei Library

Leng Bin, Zhang Lei

(Jiangsu Provincoal Architectural D&R Institute Ltd, Nanjing 210019, China)

Abstract:The main structure of the Library in Nanjing Jiangbei New Area with 40-0 meters height adopts steel frame structural system. The plane of the building is composed of two east and west partitions. There are only two corridors connecting the east and west buildings on the third to sixth floors. The width of a single corridor is about 5m. There are some situations in the complex out-of-code tall building structure, such as the coordination of the deformation of the east and west buildings, the weak connection of the corridor, the transformation of the large-span truss, the large cantilever, the inclined column and  the cross-layer column, etc. The structural system, multi-rigid body model and performance-based design goal of the project were described. The key technical problems in structural design were introduced, including response spectrum analysis, elastic time-history analysis, floor stress analysis,  analysis of human-induced vibration comfort and joint analysis, etc. The results show that the overall design of the structure meets the set performance objectives and the relevant requirements of the specification.

Keywords: Nanjing Jiangbei Library; complex out-of-code tall building; multi-rigid body; spatial structure; analysis of human-induced vibration comfort; joint analysis

作者简介：冷斌，硕士，高级工程师，一级注册结构工程师，Email：377528834@qq.com。