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Evaluation of Wind Pressure Distribution on Single and Multi-Span Cylindrical Canopy Roofs Using Wind Tunnel Testing
https://orcid.org/https://orcid.org/0000-0001-6514-1304
https://orcid.org/https://orcid.org/0000-0003-3726-757X
https://orcid.org/https://orcid.org/0000-0001-8429-4664
Wind tunnel tests are carried out to measure pressure distribution on single and multi-span (two, three, and four span) cylindrical canopy roofs (CCRs) with wind incidence angles (WIAs) ranging from 0° to 90° at 30° intervals. The velocity and turbulence intensity inside the wind tunnel are measured as per terrain category II given in IS 875 (part3) (2015). Wind pressure on both the upper and lower surfaces of the single and multi-span CCR is measured and plotted as contour lines in SURFER 14.0 software. The net wind pressure coefficient is calculated in three pressure zones of CCR namely windward (A), ridge (B) and leeward (C). Additionally, this study includes a comparison of the findings with previous wind tunnel studies conducted by other researchers on CCR. The study shows that the maximum positive pressure could be found in windward side (zone A) and maximum negative pressure i.e. suction could be found on ridge (zone B) at WIAs of 0° and 30° for single span CCR. It is to be noted that, regardless of the WIAs and number of spans, the ridge (Zone B) is always under suction. For multi-span CCRs, significant amount of suction is observed on leeward side (zone C) for a 30° WIA.
Evaluation of Wind Pressure Distribution on Single and Multi-Span Cylindrical Canopy Roofs Using Wind Tunnel Testing
https://orcid.org/https://orcid.org/0000-0001-6514-1304
https://orcid.org/https://orcid.org/0000-0003-3726-757X
https://orcid.org/https://orcid.org/0000-0001-8429-4664
Wind tunnel tests are carried out to measure pressure distribution on single and multi-span (two, three, and four span) cylindrical canopy roofs (CCRs) with wind incidence angles (WIAs) ranging from 0° to 90° at 30° intervals. The velocity and turbulence intensity inside the wind tunnel are measured as per terrain category II given in IS 875 (part3) (2015). Wind pressure on both the upper and lower surfaces of the single and multi-span CCR is measured and plotted as contour lines in SURFER 14.0 software. The net wind pressure coefficient is calculated in three pressure zones of CCR namely windward (A), ridge (B) and leeward (C). Additionally, this study includes a comparison of the findings with previous wind tunnel studies conducted by other researchers on CCR. The study shows that the maximum positive pressure could be found in windward side (zone A) and maximum negative pressure i.e. suction could be found on ridge (zone B) at WIAs of 0° and 30° for single span CCR. It is to be noted that, regardless of the WIAs and number of spans, the ridge (Zone B) is always under suction. For multi-span CCRs, significant amount of suction is observed on leeward side (zone C) for a 30° WIA.
Evaluation of Wind Pressure Distribution on Single and Multi-Span Cylindrical Canopy Roofs Using Wind Tunnel Testing
https://orcid.org/https://orcid.org/0000-0001-6514-1304
https://orcid.org/https://orcid.org/0000-0003-3726-757X
https://orcid.org/https://orcid.org/0000-0001-8429-4664
Wind tunnel tests are carried out to measure pressure distribution on single and multi-span (two, three, and four span) cylindrical canopy roofs (CCRs) with wind incidence angles (WIAs) ranging from 0° to 90° at 30° intervals. The velocity and turbulence intensity inside the wind tunnel are measured as per terrain category II given in IS 875 (part3) (2015). Wind pressure on both the upper and lower surfaces of the single and multi-span CCR is measured and plotted as contour lines in SURFER 14.0 software. The net wind pressure coefficient is calculated in three pressure zones of CCR namely windward (A), ridge (B) and leeward (C). Additionally, this study includes a comparison of the findings with previous wind tunnel studies conducted by other researchers on CCR. The study shows that the maximum positive pressure could be found in windward side (zone A) and maximum negative pressure i.e. suction could be found on ridge (zone B) at WIAs of 0° and 30° for single span CCR. It is to be noted that, regardless of the WIAs and number of spans, the ridge (Zone B) is always under suction. For multi-span CCRs, significant amount of suction is observed on leeward side (zone C) for a 30° WIA.
Evaluation of Wind Pressure Distribution on Single and Multi-Span Cylindrical Canopy Roofs Using Wind Tunnel Testing
KSCE J Civ Eng
Rani, Neelam (author) / Pratap, Ajay (author) / Ahuja, Ashok Kumar (author)
KSCE Journal of Civil Engineering ; 28 ; 3344-3358
2024-08-01
15 pages
Article (Journal)
Electronic Resource
English
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