韩重庆1，陈浩曼2，吴志斌1（1 东南大学建筑设计研究院，南京 210096； 2 东南大学土木工程学院，南京 210096）

［摘要］南京中心大酒店在加层改造中，将室外半圆形庭院围合成9层高的超大共享空间，设计方案新颖，但实现难度很大。结构设计中为新增钢结构设置了清晰的传力路径，严格控制结构自重，解决了阻尼比确定、新老建筑共同工作等设计难题，并兼顾结构美观和市中心施工可行性，保证了项目的顺利实施，取得了很好的经济、社会效益。

［关键词］加层；钢结构；地震作用；阻尼比

中图分类号：TU393-2，TU746-3文献标识码：A文章编号：1002-848X(2012)04-013303

Retrofitting design of adding stories in enclosing courtyard of Nanjing Central Hotel

Han Chongqing1, Chen Haoman2, Wu Zhibin1(1 Architectural Design & Research Institute of Southeast University, Nanjing 210096, China; 2 College of Civil Engineering, Southeast University, Nanjing 210096, China)

Abstract:In the retrofitting of Nanjing Central Hotel, new concept of design was brought in, which enclosed the outdoor semi-circle shaped courtyard into a nine-story large sharing space. However, the concept was very difficult to be carried out. In the new-added steel structure, load-transferring was very clear, and self-weight was reduced to the minimum. Many design difficulties were solved such as damping ratio setting and coincident work of adding stories with the old structure. The structure aesthetics and the operation feasibility in downtown were well taken into consideration. The project was carried out smoothly, and it achieved great economic and social benefit.

Keywords:adding story; steel structure; seismic effect; damping ratio 

作者简介：韩重庆，博士，高级工程师，Email：chq_han@seu.edu.cn。

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