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frv - I have attached a quick sketch. The walls are plain masonry walls 12" thick and are 22' tall.http://files.engineering.com/getfile.aspx?folder=caf8c6a6-37d1-44f9-8a74-09a08eb58c62&file=20100609133022322.pdf

I have a trapezoidal building with a wood roof. I am trying to analyze the roof diaphragm but don't really know how to do a flexible diaphragm analysis with the one skewed wall. Three walls form a C-shape and intersect at 90 deg. The fourth wall is at an angle of 125 deg from one wall and 55...

The existing building will be under the new construction. The idea was to have twin tee beams span about 60 across the building to allow for some new columns, footings around the existing. The "shelter" would probably be made integral with the new construction and therefore would become...

We are the structural engineer on a new heavy construction project (7 floors of PT garage with 3 floor of residential aobve). There is a small 150x50 single story build on one edge of the site. The developer is unable to remove one of the tenants and therefore is asking us to design and...

Thanks for the comments. I didnt think there was a limit and I could not find anything in the code but I wanted to know if I was missing anything.

In ASCE7-05 the drift height is calculated by a graph or equation involving the ground snow load and the length of roof upwind of the drift. My question is "Is there a reasonable maximum length of roof upwind to consider in the drift?" This is a result of a maufacturing facility that is adding...

msquared48 - Thanks for the advice. The one that I would really like to know is whether or not the NDS equations are still valid for unconnected plies connected together at certain intervals. For my case I guess what does it take for the NDS equations to be valid for attaching (3) 2x8s flat to...

I currently have a wood plate attached to the top of a concrete wall supportin wood roof trusses. The trusses were built with a heel height that was 4.5" too short. Our solution is raise the trusses and bolt (3) more 2x plates to the existing one. When you analyze this connection using NDS can...

Hello, I am new writing on this forum but I have read many of the problems/questiosn posted by others. I have been asked to design a 100' long X 45' tall banner that will be attached to a structure on the top and two sides. A wire will run along the bottom to hold the banner in place. I have...