丁生根¹，  陈春晖¹，  花更生¹，  杨天同²
(1 现代设计集团华东建筑设计研究院有限公司，上海200002；2 青岛国信大剧院有限公司，青岛266000)

[摘要] 青岛大剧院屋架钢结构设计通过在不同位置采用固定铰支座、单向滑动支座、双向滑动支座等支承于下部四个独立的混凝土结构单体之上，在实现屋架传力途径的前提下，最大限度地降低了由于下部结构相互独立的自振特性所产生的不利影响。本文对该屋架的温度应力分析、支座形式的选用及布置情况进行了详细阐述，介绍了屋架钢结构的整体计算与分析、典型节点等，旨在为类似工程提供参考与探讨。
[关键词] 青岛大剧院；钢屋架；滑动支座

Design of the Steel Structure of the Roof for Qingdao Grand Theater
Ding Shenggen¹, Chen Chunhui¹, Hua Gengsheng¹, Yang Tiantong²
(1East China Architectural Design & Research Institute Co., Ltd. , Xian Dai Architectural Design Group, Shanghai 200002, China; 2 Qingdao Guoxin Grand Theater Co., Ltd., Qingda0 266000, China)

Abstract: Through a series of fixed joint supports, and sliding supports either in single direction or in both directions, the steel structure of the roof for Qingdao Crand Theater is based on the four nether concrete structures, which are independent to each other. By this way, the disadvantages, caused by the independent vibration characteristic of the concrete structures, are reduced furthest, while the load transfer routes are achieved already. In this paper, the temperature load, the form and the distributing of the support system are introduced in detail, global calculation and analysis of the steel structure, design of typical joints are presented too.
Keywords: Qingdao Grand Theater; steel roof; sliding supports