I'm looking for a "best practices" type recommendation. I'm designing a couple of rectangular concrete water filtration tanks with rectangular concrete open channel supply and return channels. My longest uninterrupted straight run for the tanks is 30' and 42' for the channels. Wall height is...
Thank you all for your input. The roof in question is an existing roof designed in 1967. At that time our building code did not require the consideration of localized drift load. The multi-level roof configuration, however, is very common, an example being a gymnasium adjacent to a single...
For calculating snow drift on the windward side of a lower roof, ASCE 7-05 tells you to use the length of the lower roof in Fig 7-9 (ASCE 7-05 7.7.1). If you have a situation where there is a long higher roof, followed by a relatively short lower roof, followed by another high roof, would you...
