Effects of building parameters on wind loads on flat-roof-mounted solar arrays

2018 ◽  
Vol 174 ◽  
pp. 210-224 ◽  
Author(s):  
Jingxue Wang ◽  
Qingshan Yang ◽  
Yukio Tamura
Keyword(s):  
Wind Loads ◽  
Solar Arrays ◽  
Flat Roof ◽  
Building Parameters

Comparisons of design wind pressures on roof-mounted solar arrays between wind tunnel tests and codes and standards

2020 ◽  
pp. 136943322096527
Author(s):  
Jingxue Wang ◽  
Qingshan Yang ◽  
Yi Hui
Keyword(s):  
Wind Tunnel ◽  
Experimental Results ◽  
Solar Panels ◽  
Wind Tunnel Tests ◽  
Pressure Equalization ◽  
Solar Arrays ◽  
Side Ratio ◽  
Design Values ◽  
Wind Pressures ◽  
Flat Roof

The current codes and standards concerning wind loads on roof-mounted solar panels are discussed and summarized. Wind pressures on flat- and slope-roof-mounted solar arrays obtained from wind tunnel tests are compared with the recommended design values in ASCE 7-16 and JIS C 8955: 2017. Different parameters, including building side ratio, aspect ratio and parapet height, are examined. Results show that the largest wind pressures on flat-roof-mounted solar panels of all zones in ASCE 7-16 tend to be 10% to 26% smaller than the experimental results when normalized tributary area An is larger than 103. Uplift wind forces on flat-roof-mounted solar panels in downstream regions obtained from experiments can be larger than the recommended values in JIS C 8955: 2017 for adverse wind, but downward force coefficients are basically smaller than those in JIS C 8955: 2017 for fair wind. 40% to 60% increase on the pressure equalization factor for slope-roof-mounted solar panels is suggested for the potential refinement of ASCE 7-16 based on this study. Meanwhile, proposed pressures of slope-roof-mounted solar panels in JIS C 8955: 2017 might be too conservative according of experimental results.

LES study of wind pressure and flow characteristics of flat-roof-mounted solar arrays

2020 ◽  
Vol 198 ◽  
pp. 104096 ◽  
Author(s):  
Jingxue Wang ◽  
Pham Van Phuc ◽  
Qingshan Yang ◽  
Yukio Tamura
Keyword(s):  
Flow Characteristics ◽  
Wind Pressure ◽  
Solar Arrays ◽  
Flat Roof

Study on Flat Roofing Systems

2018 ◽  
Vol 1 (2) ◽  
pp. 45-59
Author(s):  
Bassam Abu Awwad ◽  
Manal O. Suliman
Keyword(s):  
Major Element ◽  
Wind Loads ◽  
Structural Elements ◽  
Building Roof ◽  
Flat Roof ◽  
Architectural Effects

In many buildings, the roof is a major element that gives the building its distinctive profile .The main purpose of a roof is to protect the building or the house in all types of weather with a minimum of maintenance .a roof must be strong to with stand snow and wind loads. Another consideration is appearance .a roof should add to the attractiveness of the building roof styles are used to create different architectural effects. This paper reports a study on flat roof systems include the layers of structural elements of the roof, types of finish used, flashing, roof edging, drainage, and other details associated with the roof.   © 2018 JASET, International Scholars and Researchers Association

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