TY - JOUR
T1 - Wind-induced dynamic response and resultant load estimation of a circular flat roof
AU - Uematsu, Yasushi
AU - Watanabe, Keisuke
AU - Sasaki, Akihiro
AU - Yamada, Motohiko
AU - Hongo, Takeshi
N1 - Funding Information:
This study was financially supported by the Japanese Ministry of Education, Culture and Sports, under Grant-in Aid for Scientific Research No. 07650653. We would like to thank Messrs. M. Suzuki and M. Tsuchiya of Kajima Technical Research Institute for help with the wind tunnel experiments and data processing.
PY - 1999/11
Y1 - 1999/11
N2 - The design wind load for the structural frame of a circular flat roof has been investigated, based on a statistical analysis of the dynamic response to turbulent wind forces. The roof structure is supposed to act like an elastic plate under wind loading. Wind pressures were measured simultaneously at some hundred points on the roof of the model building in two kinds of turbulent boundary layers, which simulated the natural winds over typical open-country and urban terrains. The span-to-height ratio of the model was changed from 1 to 8. The dynamic response of the roof is analyzed in the time domain as well as in the frequency domain, using the experimental data of the wind pressures. In the analysis, both the deflection and the bending moment are considered as the most important load effects. The results indicate that the equivalent static pressure, which reproduces the maximum response, can be evaluated by using a gust loading factor approach. The effects of various parameters on the gust loading factor are investigated. Based on the results, an empirical formula for estimating the gust loading factor is provided.
AB - The design wind load for the structural frame of a circular flat roof has been investigated, based on a statistical analysis of the dynamic response to turbulent wind forces. The roof structure is supposed to act like an elastic plate under wind loading. Wind pressures were measured simultaneously at some hundred points on the roof of the model building in two kinds of turbulent boundary layers, which simulated the natural winds over typical open-country and urban terrains. The span-to-height ratio of the model was changed from 1 to 8. The dynamic response of the roof is analyzed in the time domain as well as in the frequency domain, using the experimental data of the wind pressures. In the analysis, both the deflection and the bending moment are considered as the most important load effects. The results indicate that the equivalent static pressure, which reproduces the maximum response, can be evaluated by using a gust loading factor approach. The effects of various parameters on the gust loading factor are investigated. Based on the results, an empirical formula for estimating the gust loading factor is provided.
KW - Circular flat roof
KW - Dynamic response analysis
KW - Gust loading factor
KW - Load effect
KW - Wind load
KW - Wind tunnel test
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U2 - 10.1016/S0167-6105(99)00076-8
DO - 10.1016/S0167-6105(99)00076-8
M3 - Conference article
AN - SCOPUS:0033461777
VL - 83
SP - 251
EP - 261
JO - Journal of Wind Engineering and Industrial Aerodynamics
JF - Journal of Wind Engineering and Industrial Aerodynamics
SN - 0167-6105
IS - 1-3
T2 - Proceedings of the 1997 4th Asia Pacific Symposium on Wind Engineering
Y2 - 14 July 1997 through 16 July 1997
ER -
