TY - JOUR
T1 - Component and cladding wind loads for low-slope roofs on low-rise buildings
AU - Kopp, Gregory
AU - Morrison, M.J.
PY - 2018/4
Y1 - 2018/4
N2 - The component and cladding wind load provisions for low-sloped roofs on low-rise buildings in ASCE 7-10 were examined using measured pressure data from an aerodynamic database. It was found that both the design pressure coefficients and size of the roof zones in ASCE 7-10 are much smaller in magnitude than indicated by the data. The data indicate that building height is the most significant parameter affecting the size of the roof zones, while plan dimensions have a limited impact on this class of buildings. Recommendations for revised roof zones are developed, which include a modification to the shape of the corner zone, the addition of a new interior zone far from the roof edges, and a zone size definition that depends only on building height. However, even with increased roof zone sizes, the measured data indicate that the design pressure coefficients must also be increased in the corners and edges.
AB - The component and cladding wind load provisions for low-sloped roofs on low-rise buildings in ASCE 7-10 were examined using measured pressure data from an aerodynamic database. It was found that both the design pressure coefficients and size of the roof zones in ASCE 7-10 are much smaller in magnitude than indicated by the data. The data indicate that building height is the most significant parameter affecting the size of the roof zones, while plan dimensions have a limited impact on this class of buildings. Recommendations for revised roof zones are developed, which include a modification to the shape of the corner zone, the addition of a new interior zone far from the roof edges, and a zone size definition that depends only on building height. However, even with increased roof zone sizes, the measured data indicate that the design pressure coefficients must also be increased in the corners and edges.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-85041482294&partnerID=MN8TOARS
U2 - 10.1061/(ASCE)ST.1943-541X.0001989
DO - 10.1061/(ASCE)ST.1943-541X.0001989
M3 - Article
SN - 0733-9445
VL - 144
JO - Journal of Structural Engineering (United States)
JF - Journal of Structural Engineering (United States)
IS - 4
ER -