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I am a licensed structural engineer and design the wall as a conventional reinforced concrete wall. Likewise, with ICF beams when the architect and/or owner wanted to use that system for a roof. I don't let the ICF installer/manufacturer specify the reinforcing. My issue is with the lack of...

I am working with a few architects who are determined to use ICF for storm shelters and other projects. After going through the construction process on a few projects, it is my opinion that ICF contractors are clueless about how to install reinforcing for concrete walls and beams. I am...

thank you!

XR250, the joist question has been raised in the past and was raised during my site visit. It is my understanding that the joists were designed to support the loads imposed by tube hangars. I am not the EOR for the project, so I don't know for certain that is the case. I am a third party...

I am working on renovations to a church constructed in the early 1920's. The attached floor plan shows an unfamiliar joist designation. Looking at the joists through a small hole in the ceiling, the joists appear very similar to two cold-formed metal cee-shapes back-to-back. The existing...

Many of you noticed the lack of bottom chord reinforcing at the tube hanger locations. Apparently, enough people (including me) made comments about it during site visits that the EOR decided that something should be done. He issued a detail showing several steel angles welded to the joists...

dauwerda, what's difficult to see clearly in the photo are vertical steel pickets for the handrail. The portion you circled is the edge of the picket closest to the tube. dold, I commented on the lack of bracing for the bottom chords of the joists at the hanger locations. I was told that the...

Tubes are not galvanized. I am currently reviewing possible torsional effects of bolted connection between bottom of tube and floor beam. Crack in photo is 1/32" wide x 10 inches long. The other affected column is similar.

thread507-508096 I read the referenced thread regarding some 10x10 tubes with a crack in the corner. I was asked to look at some 4x4x1/4 tubes in a building that is not my design. The tubes are used as hangers for an elevated running track in a wellness center. New construction. The steel...

I have been using Revit for several years. I recently started two projects that required a level of development 3 for modeling. I'm finding it's taking many more hours to model detailed connections and other elements in Revit if LOD3 is required. The clients want cold-formed metal trusses to...

JLNJ, that's an option. I need to work it out with the architect exactly where the ledge will be located. Somewhere near each floor level

XR250, I could support the veneer only at the 3rd floor level. But the beams will likely be rather large (deep and wide, i.e. flange width). This architect likes to use steel tube columns and center the grids in the stud wall so he doesn't have to furr out around any columns. It creates a...

phamENG & jayrod12, it's likely this architect hasn't looked into it enough to realize there could be a joint at each floor and how it affects the aesthetics. But I have already mentioned it.

It's a structural steel system. It's my intent to support at every floor level & design the framing accordingly for gravity and lateral. But, I did this approach on a previous project where a different architect didn't want the joints at every floor level. So, I tried to avoid an argument...

I am working on a four story project with brick veneer full height of the building. I asked the architect where he wants to support the veneer at the upper floor levels because the total height exceeds 30 ft. We can do it at every floor level or every other floor level. He says it's my...

Does anyone have experience with the iSpan joist system. www.ispansystems.com A client wants to use these proprietary cold-formed metal joists on a project instead of typical open-web steel joists and metal roof deck. I'm gathering info from the manufacturer and learning about the system...

I have designed several storm shelters per ICC 500 requirements, and per FEMA guidelines prior to ICC 500 being issued. All have been peer reviewed since ICC 500 was issued and a some before then, too. The latest peer reviewer required that the foundation for the shelter be totally separated...

Thanks for the replies. I have learned more since I originally posted. NPCA does not certify for prestressed concrete whereas PCI does.

Does anyone have any knowledge about PCI certifcation versus National Precast Concrete Association certification? Are the two certifications similar? There are different levels of certification for PCI but I'm not finding much online info about NPCA that is allowing me to compare the two.

The long strip of different color sheathing is where the original skylight was removed at some time in the past. There is no one currently working at the school that remembers seeing a skylight, so it must have been removed more than 20 years ago as the current custodian has been there since...