Thermal behavior of spatial structures under solar irradiation

被引：31

作者：

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

Liao, Xiangwei ^{[3
]}

Chen, Zhihua ^{[1
,2
,3
]}

Zhang, Qian ^{[3
]}

机构：

[1] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Key Lab Coast Civil Struct Safety China, Minist Educ, Tianjin 300072, Peoples R China

[3] Tianjin Univ, Dept Civil Engn, Tianjin 300072, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2015年 / 87卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Large-span steel spatial structures; Solar radiation; Non-uniform temperature; Glass roof; Light roof; Temperature measurement on site; Numerical analysis; SPACE TRUSS DOMES; TEMPERATURE DISTRIBUTION; SUBSTRUCTURES; FLEXIBILITY; BRIDGES;

D O I：

10.1016/j.applthermaleng.2015.04.079

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The temperature, particularly the non-uniform temperature under solar irradiation, is the main load for large-span steel structures. Due the shortage of in-site temperature test in previous studies, an in-site test was conducted on the large-span steel structures under solar irradiation, which was covered by glass roof and light roof, to gain insight into the temperature distribution of steel members under glass roof or light roof. A numerical method also was presented and verified to forecast the temperature of steel member under glass roof or light roof. Based on the on-site measurement and numerical analyses conducted, the following conclusions were obtained: 1) a remarkable temperature difference exists between the steel member under glass roof and that under light roof, 2) solar irradiation has a significant effect on the temperature distribution and thermal behavior of large-span spatial structures, 3) negative thermal load is the controlling factor for member stress, and the positive thermal load is the controlling factor for nodal displacement. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：328 / 335

页数：8

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