双拱大跨屋盖结构风载的数值模拟研究

STUDY ON THE NUMERICAL SIMULATION OF WIND LOADS ACTING ON LARGE SPAN DOUBLE-ARCHED ROOF STRUCTURE

1.
1. Central Research Institute of Building and Construction Co.Ltd,MCC,Beijing 100088,China;
2.
2. Beijing University of Science and Technology,Beijing 100083,China

摘要: 双拱大跨度网架屋盖结构由于体表为复杂曲面,其风荷载的确定不能仅参考我国建筑结构荷载规范中对风荷载的相关规定,风荷载的确定需要借助于其他手段。CFD数值模拟风洞是近年来发展起来的一种风荷载研究手段,基于ANSYS-CFX 12流体动力学软件,利用雷诺应力(RSM)湍流模型对一双拱大跨度屋盖结构上平均风载体型系数进行数值模拟研究,得到双拱大跨屋盖结构表面体型系数的极限值。建议结构设计人员在对结构表面风荷载进行计算时,可以按照该极限值对重点部位予以加强。
- 双拱 /
- 屋盖 /
- 数值模拟 /
- 风荷载
Abstract: Due to the complexity of large span double-arched roof structure,Chinese load codes are not enough for the design.Other method should be used to ascertain the wind load on the roof structure.The distribution of wind pressure and wind environment on the roofs of large span double-arched structure were computed based on ANSYS-CFX12 software platform with Reynolds stress model(RSM).By the simulation,the unfavorable wind shape coefficient is obtained,which help the designer to enhance the key component for the safety of the serviceability performance when computing the wind load on the surface of a structure.
- double-arched structure /
- roof structure /
- numerical simulation /
- wind load

1.	翟彬，李素超，张丽娟，徐再根，王志远，毛晨曦. 钢管输电塔挂线节点足尺模型失效模式与承载力提升分析. 地震研究. 2024(01): 1-9 . 百度学术
2.	张丽娟，田雪凯，刘俊才，罗靖宇，田利. 输电塔钢管角钢组合节点承载能力模拟分析与计算方法研究. 建筑钢结构进展. 2024(11): 56-65 . 百度学术
3.	孟宪乔，张树林，郑治祥，李正良，刘红军. 大跨越钢管塔复杂管板-相贯节点承载力计算方法. 建筑钢结构进展. 2024(12): 80-94 . 百度学术
4.	张斌，李文适，蒙春玲，孙清. 外加劲加强相贯节点极限承载力研究. 西安建筑科技大学学报(自然科学版). 2024(06): 797-807 . 百度学术
5.	祖庆芝，李俊. 薄壁加劲钢管抗震性能有限元分析. 四川轻化工大学学报(自然科学版). 2022(03): 93-100 . 百度学术