Contractor on my project is asking if he could have an opening in base plate to run some conduits. Is there any calc that anybody could share which I can use to check my base plate design incorporating the opening?
Engineers, If I have a beam sitting on top of column with four bolts that are in bearing and take shear (no uplift in my case), should I just check bolts capacity in bearing and shear separately based on AISC tables or is there an interaction that I need to worry about? I know I need to consider...
I am involved with billboard renovation project. The owner wants to reuse the exisitng steel columns. But they are a bit rusted. I'd like to know if there is any place where I can send those columns to where they can be scraped off the rust and prepped appropriately and make it like new and re...
What should I consider when designing Post Tensioned beam with pour strip in it? Can anyone provide typical detail or design info? Do I design it just like a regular beam as id there is no break but provide pour strip where the tendons stop at CGC of concrete section and call it a day? How do I...
I was wondering if any of you could share any spreadsheet that you may have to design embed plate with studs for steel beam to concrete connection. Has anyone tried using other procedures other than D.3.3.4 (ductility controlling design) for seismic considerations? If I were to use D.3.3.5, how...
Are there any concerns with extending structural steel columns (Fy=50ksi) below grade? The footings on one side of the building are 7 feet lower than the rest and so, I am taking my steel columns to the footing while the slab on grade is 7 feet above the top of footing. Is there anything I...
I am evaluating an existing steel structure for current loads. I modeled the structure only to realize that the whole structure is failing, while in reality the structure is doing just fine. There is not explicit note on the drawings saying it is Fy=50 ksi structural steel and hence, I modeled...
There is a box culvert over which I am designing a one-way slab to take pedestrian loading (85 psf). I am also designing strip footings to support the slab. However, I'd like to take the footings to the bottom of the box culvert so that the footings do not impart any loads to the box culvert. Am...
I am adding a column onto an existing spread footing. It is not the bearing capacity that I am worried about but the differential settlement due to additional load that I need to check. Can someone enlighten me how I can check this? How much additional load on a spread footing (in terms of...
