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You should see if your work will invest in LPile for pier/pile analysis (if you need to design often). The software is easy to learn/use, but generally will require a geotechnical report done unless you want to make some assumptions. Or if you have STAAD you can use STAAD foundation. I'm not...

Thanks again for all of your input. After getting some drawings and after a site visit, I realized that the top of the coal transfer tower will act as a rigid diaphram and will transfer most of the lateral forces from the conveyer into the main building frame. One clarification for LRFD...

Point taken (and I agree), but i'm not really doing anything with new/existing loads. All i'm doing is matching the new compressive capacity with the old compressive capacity (based on new effective lengths and modified section properties). I have been working with a more experienced engineer...

Also, would like to thank you guys for your time/efforts. Forgot to mention this in my post above but its greatly appreciated :)

apsix- No bracing can be placed in that bay, as the riggers want the area totally clear for monorail cargo. I have already pushed for chevron braces or "K" braces, both of which were rejected. SlideRule- I like your thoughts, and will potentially be the way I go. I did get my hands on some...

I should mention that this structure is the coal unloading transfer mechanism. There is a conveyer (not shown in the photo) that is connected to the top of the building which runs perpendicular to the bracing. This is where significant lateral loads will come from as the span from the conveyer...

Seismic is not an issue at the location as wind will govern. The height of the structure is about 120 ft. See the link below for a picture. You can see the monorail in the photo and where they have removed half of the X-bracing. The lower portion and horizontal beam will also be removed. I...

I do a lot of work with existing structures and a number of retro fitting projects. This particular project I need to remove x-bracing and a horizontal beam in a particular bay of a braced frame to make room for a monorail and clearance for its cargo. Essentially I will be increasing the...