Experimental and simulation analysis of thermal behavior of large‐span roof system under solar radiation

IF 1.8 3区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Structural Design of Tall and Special Buildings Pub Date : 2023-04-17 DOI:10.1002/tal.2013

Mingming Wang, Z. Xin, Xuan-Xuan Liu, Tong Ou, Dayang Wang, Yongshan Zhang

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引用次数: 0

Abstract

The large‐span metal roof systems can produce a significant nonuniform temperature effect under solar radiation, leading to potential safety hazards. An experiment is conducted to study the nonuniform thermal behavior of a small‐scale continuous welded stainless steel roof (CWSSR) system under solar radiation. The small‐scale CWSSR system considered different roof slopes and sunward side and nightside. The efficiency of the numerical analysis of the thermal behavior of the roof slab is verified in comparison with the experimental results. Based on the numerical and experimental results, the thermal effect of a full‐scale CWSSR system is studied under different orientations, wind speeds, and atmospheric temperature. Through the analysis of research results, the nonuniform thermal features of the CWSSR system are significant and cannot be overlooked. The temperature difference between the sunward side and nightside roof slab is positively correlated with the roof slope. The thermal behavior of the CWSSR system is greatly influenced by wind speeds but is less affected by orientations and atmospheric temperature.

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太阳辐射下大跨度屋面系统热行为的实验与仿真分析

大跨度金属屋顶系统在太阳辐射下会产生显著的不均匀温度效应，存在安全隐患。对小型连续焊接不锈钢屋顶系统在太阳辐射下的非均匀热行为进行了实验研究。小型CWSSR系统考虑了不同的屋顶坡度以及向阳侧和向阳侧。通过与试验结果的比较，验证了数值分析屋面板热性能的有效性。基于数值和实验结果，研究了全尺度CWSSR系统在不同方位、风速和大气温度下的热效应。通过对研究结果的分析，CWSSR系统的非均匀热特性是不可忽视的。向阳侧和向阳侧屋面板之间的温差与屋顶坡度呈正相关。CWSSR系统的热行为受风速的影响很大，但受方位和大气温度的影响较小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Structural Design of Tall and Special Buildings 工程技术-工程：土木

CiteScore

5.30

自引率

4.20%

发文量

审稿时长

6-12 weeks

期刊介绍： The Structural Design of Tall and Special Buildings provides structural engineers and contractors with a detailed written presentation of innovative structural engineering and construction practices for tall and special buildings. It also presents applied research on new materials or analysis methods that can directly benefit structural engineers involved in the design of tall and special buildings. The editor''s policy is to maintain a reasonable balance between papers from design engineers and from research workers so that the Journal will be useful to both groups. The problems in this field and their solutions are international in character and require a knowledge of several traditional disciplines and the Journal will reflect this. The main subject of the Journal is the structural design and construction of tall and special buildings. The basic definition of a tall building, in the context of the Journal audience, is a structure that is equal to or greater than 50 meters (165 feet) in height, or 14 stories or greater. A special building is one with unique architectural or structural characteristics. However, manuscripts dealing with chimneys, water towers, silos, cooling towers, and pools will generally not be considered for review. The journal will present papers on new innovative structural systems, materials and methods of analysis.