<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Wind loads on cylindrical free-standing canopy roofs were investigated in a wind tunnel. First, the overall aerodynamic forces and moments were measured using a force balance. The distributions of net wind pressures provided by the difference between wind pressures on the top and bottom surfaces of the roof were then measured along two representative arc lines. Based on the results, the net wind-pressure coefficients for designing such roofs are proposed as a function of the rise-to-span ratio for two representative wind directions: one perpendicular to the eaves, the other inclined at an angle of 45° to the eaves. The roof is divided into three zones and constant net wind-pressure coefficients are specified for these zones. Two load cases providing the maximum tension and compression in the columns supporting the roof are considered as the most important load effect for discussing the design wind loads.</p></abstract>

Wind loads on cylindrical free-standing canopy roofs were investigated in a wind tunnel. First, the overall aerodynamic forces and moments were measured using a force balance. The distributions of net wind pressures provided by the difference between wind pressures on the top and bottom surfaces of the roof were then measured along two representative arc lines. Based on the results, the net wind-pressure coefficients for designing such roofs are proposed as a function of the rise-to-span ratio for two representative wind directions: one perpendicular to the eaves, the other inclined at an angle of 45° to the eaves. The roof is divided into three zones and constant net wind-pressure coefficients are specified for these zones. Two load cases providing the maximum tension and compression in the columns supporting the roof are considered as the most important load effect for discussing the design wind loads.

Wind Loads for Designing the Main Wind-Force Resisting Systems of Cylindrical Free-Standing Canopy Roofs

Department of Architecture and Building Science

Technical Transactions

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Wind loads on cylindrical free-standing canopy roofs were investigated in a wind tunnel. First, the overall aerodynamic forces and moments were measured using...

Wind Loads for Designing the Main Wind-Force Resisting Systems of Cylindrical Free-Standing Canopy Roofs

Published Online: May 16, 2020

Page range: 125 - 143

Received: May 29, 2019

DOI: https://doi.org/10.4467/2353737XCT.19.076.10727

Keywords
cylindrical free-standing canopy roof, wind load, main wind-force resisting system, wind tunnel experiment, dynamic load effect

© 2019 Yasushi Uematsu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Wind Loads for Designing the Main Wind-Force Resisting Systems of Cylindrical Free-Standing Canopy Roofs

Published Online: May 16, 2020

Page range: 125 - 143

Received: May 29, 2019

DOI: https://doi.org/10.4467/2353737XCT.19.076.10727

Keywordscylindrical free-standing canopy roof, wind load, main wind-force resisting system, wind tunnel experiment, dynamic load effect

© 2019 Yasushi Uematsu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Keywords
cylindrical free-standing canopy roof, wind load, main wind-force resisting system, wind tunnel experiment, dynamic load effect