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Dr. Keith Macbain, P.E., M.ASCE

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Contributions

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RE: Building Roof Plan, Figure 29.4-7

Posted By Keith Macbain 08-03-2022 10:54 AM
Found In Community: Peer-to-Peer Standards Exchange \ view thread
Hi Thomas, My first take is similar to yours, that it might be an error. However note that for this section the commentary explicitly acknowledges that the zones are larger (see the last 2/3 of the first paragraph C29.4.3). Also I note that the figure in the commentary C29.4-1 repeats the dimension 2h ...

wind C&C Chapter 30, Part 4

Posted By Keith Macbain 08-03-2022 09:08 AM
Found In Community: Peer-to-Peer Standards Exchange \ view thread
Hi all, My question is about ASCE 7-16, Part 4 of Chapter 30 (C&C) and particularly how to apply Notes 3 and 4 of Table 30.6-2. As an example, let’s consider a gable roof with the following details: h = 70’ Θ = 10 deg Exposure C V = 100 mph Zone 3e (edge corner of roof) Effective Area = 10 ft2 Note 3 ...