（华东建筑设计研究总院， 上海 200002）

［摘要］南京牛首山文化旅游区佛顶宫大穹顶采用单层铝合金网壳结构体系，由于该结构体型复杂，为大跨空间自由曲面，在设计规范中无相似体型的建筑可供参考，因此对其进行了风洞试验及数值模拟分析，研究该类结构的风荷载特性。详细介绍了风洞试验的基本模拟条件，基本风压、体型系数、风振系数的计算方法和选取依据，以及最终设计用风压的计算结果。通过对比分析可知，风洞试验与数值模拟两种方法的结果吻合良好，较好地相互验证了上述两种方法的准确性，对类似工程的风荷载设计有一定的借鉴意义。

［关键词］南京牛首山文化旅游区佛顶宫； 大穹顶； 风洞试验； 数值模拟； 风荷载取值

中图分类号：TU395文献标识码：A文章编号：1002-848X(2018)14-0014-05

Study on wind load characteristics of large-dome and  large-span spatial free-surface roof of Fo Ding Palace in Nanjing Niushoushan Cultural and  Tourism Zone

Zhang Xuefeng, Cui Jiachun, Zhang Yingzhou

(East China Architectural Design Institute, Shanghai 200002, China)

Abstract:The large dome of Fo Ding Palace in Nanjing Niushoushan Cultural and  Tourism Zone adopts single layer aluminum alloy latticed shell structural system. It has complex shape and large-span spatial free-surface roof, and there is no similar building with similar size in the design codes for reference. Therefore, wind tunnel test and numerical simulation analysis were carried out to study the wind load characteristics of the structure. The basic simulation conditions,  basic wind pressure,  shape coefficient,  calculation method and selection basis of the wind vibration coefficient of the wind tunnel test were introduced in detail as well as the calculation results of the wind pressure in the final design. The comparison and analysis of the calculated results show that the results of the wind tunnel test and the numerical simulation are in good agreement, and the accuracy of the above two methods was verified well. It has certain references  for the wind load design of similar projects.

Keywords:Fo Ding Palace of Nanjing Niushoushan Cultural Tourism Zone; large dome; wind tunnel test; numerical simulation; wind load value

作者简介：张雪峰，学士，高级工程师，一级注册结构工程师，Email:zxfsuzhou@163.com。