A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Across-wind and torsional acceleration of prismatic high rise buildings
Abstract A simple empirical formula for the estimation of across-wind and torsional acceleration of prismatic high rise buildings is examined through a wind tunnel test. In the wind tunnel test, the side ratios (D/B, D:depth, B:breath) of the models are between 0.3 and 5, and the aspect ratio H/√A H:building's height, A:plan area) are between 4 and 8. As to the approaching flows, two kind of boundary layers representing open and urban flow conditions are applied. In the formula the response acceleration is expressed in proportion to the power of the mean wind velocity. The characteristics values derived from the formula are compared with the values from the test, the codes and other studies. Furthermore an expression for the power spectral density of the across-wind overturning moment is suggested for better estimation of the across-wind acceleration. There is a difference of less than 10% between the estimated value obtained through the use of the proposed equation and the value from the wind tunnel test.
Across-wind and torsional acceleration of prismatic high rise buildings
Abstract A simple empirical formula for the estimation of across-wind and torsional acceleration of prismatic high rise buildings is examined through a wind tunnel test. In the wind tunnel test, the side ratios (D/B, D:depth, B:breath) of the models are between 0.3 and 5, and the aspect ratio H/√A H:building's height, A:plan area) are between 4 and 8. As to the approaching flows, two kind of boundary layers representing open and urban flow conditions are applied. In the formula the response acceleration is expressed in proportion to the power of the mean wind velocity. The characteristics values derived from the formula are compared with the values from the test, the codes and other studies. Furthermore an expression for the power spectral density of the across-wind overturning moment is suggested for better estimation of the across-wind acceleration. There is a difference of less than 10% between the estimated value obtained through the use of the proposed equation and the value from the wind tunnel test.
Across-wind and torsional acceleration of prismatic high rise buildings
Marukawa, H. (author) / Ohkuma, T. (author) / Momomura, Y. (author)
Journal of Wind Engineering and Industrial Aerodynamics ; 42 ; 1139-1150
1992-01-01
12 pages
Article (Journal)
Electronic Resource
English
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