Recent content by dcredskins

DaveAtkins, I agree with you on item 1. However, this is an example. I just want to see how you do it (calculations please, if possible). Also, in item 2, I would like to see how you show design calculations with tracks and PDFs condition.

I would like to know how different engineers design: 1. Stud splice (only for lateral/wind load) 2. Base connection design (thicker track or stiffclip if necessary) for cantilever (parapet) studs including the fasteners design (we specify STEEL NETWORK STIFFCLIPS under these circustances...

We specify self compacting soil (#57 normally) at the back of the retaining walls. Does it mean, we do not have to compact at all? BTW, I am structural engineer. Please help.

nutte, I have 13th ed manual. I could not find any detail (HSS to HSS moment frame connections) on it.

structuresguy, Is there any way, I could download this manual right now? I am AISC member. I could not see this manual online on AISC website.

I am looking for a reference (design and detailing) for HSS to HSS moment frame connections. I called AISC, and was not that helpful. Do we have any manual or book, I could look into? I know this is not very common practice. I would appreciate your help.

JAE, Most of what you mentioned, I agree. However, refer to my sketch, you see the failure wedge line defines how much x distance is required to get full lateral pressure. There is difference between water and soil. Water is frictionless, however, soil is not (except some frictionless soil). In...

Countervail, If you refer to the sketch, the client would like to raise the ground level in front of the existing sheet pile. The retaining wall is there to retain the backfill between the front of the sheet pile and back of the retaining wall (distance x as indicated in the sketch). FYI...

I have a retaining wall located in front of the sheet piles as shown in the attached PDF, how much soil/lateral pressure do I consider in designing the retaining wall? To the point, how do I design the retaining walls? The sheet piles are already existing.

Thanks UcfSE. This makes sense. Also, thanks for PDF.

I found an abbreviation BTS in steel shop drawing, what does it mean? I know FS (far side) and NS (near side). I would appreciate your help.

I agree with MiketheEngineer. This is what we do in east-coast. I have done it so many times.

csd72, in ASCE 7-05, pp. 37-74, only thing I see is h = mean roof height, in feet (meters), except that eave height shall be used for theta less or equal to 10 degree. I did not find any section talking about parapets/penthouses/screen walls. Am I missing anything?

WillisV, You got my point. In ASCE, I did not find any specific section dealing with this issue, if we need to consider parapet/penthouse/secreen wall as a part of building height, to my knowledge. I understand the "engineering judgement call" part. However, I am looking for any documented proof.

Per ASCE 7, what is the mean roof height (h) of a bldg as follows? 1. Office BLDG, flat roof (40'-0") with 2'-6" parapet. 2. Office BLDG, flat roof (40'-0") with 2'-6" parapet, and 12'-0" penthouse (penthouse covers only 25% of the roof plan). 3. Office BLDG, flat roof (40'-0") with 2'-6"...