Experimental and numerical investigation on the temperature field and effects of a large-span gymnasium under solar radiation

被引：12

作者：

Liu, Cong ^{[1
,2
,3
]}

Xiao, Jianchun ^{[1
,2
]}

Ma, Kejian ^{[1
,2
]}

Xu, Hao ^{[1
,2
]}

Shen, Ruilin ^{[1
,2
,3
]}

Zhang, Hanming ^{[1
,2
,3
]}

机构：

[1] Guizhou Univ, Res Ctr Space Struct, Guiyang 550025, Peoples R China

[2] Key Lab Struct Engn Guizhou Prov, Guiyang 550025, Peoples R China

[3] Guizhou Univ, Coll Civil Engn, Guiyang 550025, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2023年 / 225卷

基金：

中国国家自然科学基金;

关键词：

Large -span spatial structure; Temperature distribution; Solar radiation; Thermal behavior; Numerical analysis; THERMAL-BEHAVIOR; STEEL MEMBERS;

D O I：

10.1016/j.applthermaleng.2023.120169

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The temperature distribution of large-span spatial structures with different roofing materials shows non-uniform under solar radiation. However, in the structural design specifications, it is generally assumed that the tem-perature change is a slow and uniform process. In this paper, the temperature distribution of the roof and steel structure of an 82 m-span gymnasium under solar radiation is experimentally investigated using infrared ther-mometry. A simplified simulation method for the temperature field of the steel structure is proposed and verified by experimental data, which can effectively consider the effects of transparent and non-transparent roofing materials. The results show that the temperature distribution of the roof is more non-uniform than steel structure, and the impact of roofing materials should not be ignored, with a roof temperature difference of 19.4 degrees C in the initial analysis. The feasibility of the numerical method is verified by the experimental results, with temperature errors ranging from 3.8 % to 23.1 % for the steel structure. In addition, a parametric analysis of the steel structure is performed, and its thermal behavior is calculated under uniform and non-uniform temperature loads. The research method and conclusions can provide valuable references for further research on the temperature field of large-span spatial structures.

引用

页数：13

共 33 条

[1] Geometrical Parametric Study on Steel Beams Exposed to Solar Radiation [J].