Several years ago I did quite a bit of research for a presentation on wind loading. During that research I discovered that the probability of a 50 year storm occurring over a period of a 50 year structure lifetime was about 66%. This was considered unacceptable but it was understood that the...
A little off topic but when I started designing 3000 psi concrete was pretty much the minimum standard. Now days in my area 4000 psi concrete has become the minimum standard due to the minimal cost difference. When I was working in the electric utility industry we used a lot of threaded rebar...
Thanks so much for the response. This is a small building used to house equipment for a large satellite antenna which is our primary business. The building is as I said about 15' x 60' supported on 4 wooden timbers equally spaced across the long dimension. The building is 'sheltered' with a shed...
I am a structural engineer in Texas. Normally a foundation for a small building (15' x 50') would be a monolithic slab with a thickness of 6 inches and grade beams around the perimeter that are 12" wide by 18-24" deep. I have a project in Maryland where the frost line is shown as 29". If someone...
I’ve obviously behind the times as we have been using the 1990 version of the aluminum welding code which has details for bevels on pre-qualified partial penetration welds. When we got the 2003 version there were no details for partial penetration welds. Are there now no requirements for bevels...
