朱庆华，许秀珍，崔鸿超，郑良知

（上海中巍结构设计事务所有限公司， 上海 200135）

 

［摘要］通过渤海明珠观景台工程论述了巨型承重长悬挑钢结构设计的具体实施方案。分别采用3种计算程序建立了空间三维模型，对结构进行了全面的受力性能分析，并由此得出结论：由于建筑造型的固有特征，无法调整结构第1振型为平动，因此在工程中采用相应的抗震加强措施来保证结构抗震的稳定性能。给出了结构具体的抗震构造措施以及基础承台配重的设计方法和计算公式。

［关键词］扭转振型； 大悬挑结构； 风洞数值模拟； 环向水平支撑

中图分类号：TU393.3      文献标识码：A      文章编号：1002-848X(2013)16-0025-05

 

Zhu Qinghua, Xu Xiuzhen, Cui Hongchao, Zheng Liangzhi

（China Majesty Structure Design Office Co., Ltd., Shanghai 200135, China）

 

Abstract: Structural design method of the super huge and large cantilevered steel structure of Bohai Pearl viewing platform was introduced. Three 3D space models were set up using different softwares to check and compare with each other. Mechanical behaviors of the structure were analyzed. Results show that the first vibration mode can′t be in translation state due to properties of the architecture, and reinforcement measures are strengthened to ensure the seismic stability of the structure. The details of seismic design are introduced as well as the design method of the counter-weights of foundation.

Keywords: torsional vibration mode; large cantilevered structure; wind tunnel numerical simulation; ring lateral bracing

作者简介：朱庆华，硕士，工程师，一级注册结构工程师，Email：qinghuazhu214@163.com。