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几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量 (http://www.dimcax.com/hust/index.php)
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-   -   canopy wind loads (http://www.dimcax.com/hust/showthread.php?t=22512)

huangyhg 2009-09-07 10:32 PM

canopy wind loads
 
canopy wind loads
i'm not sure exactly which factors to apply in determining the uplift load on a canopy attached to a retail building in accordance with ubc 97. currently i am using a factor of 2.0. which came from 2.3(overhangs, slope < 2:12) + 0.5 (canopies) - 0.8 (100sf trib. area) = 2.0 for 100mph wind i am getting a pressure of 54.3psf. i am not that familiar with the ubc 97 wind loading determinations, this just seemed high. any help would be greatly apprecieated.
canopies have very high uplift pressures. 54 psf uplift doesn't sound too high for 100 mph wind to me.


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