Like others say, I would not put extra load on the existing structure. Design an independent frame to take care of the superimposed RTUs. I use this approach not only with PEMBs, but any existing structure unless it is clearly overdesigned.
Hello. I am looking for a list of expansive soils. Can someone share a link. I have identified the soil as UtD per USDA, I would like to know more types to be aware of. This is for personal reference.
Thanks!
Greetings.
I am going over a nice brit document about portal frame plastic design but is in metric. I was wondering if anyone has come across a table with equivalencies for British UB shapes vs US W wide flange shapes. Any leads will be appreciated.
Happy thanksgiving.
Rare
@BronYAur Thanks for your feedback. In fact I have experience designing systems for residential, restaurants (hoods type I and II) and commercial projects (more like strip malls) using ASHRAE guidelines. As you mentioned, a church with an outdated system needs to account for people, assuming...
Hello All:
Can somebody recommend and online calculator resource or free software to run some basic cooling loads for medium sized church in Dallas Texas.
Thanks a lot.
Hi. Am designing a Flitch beam with (3) 2x12's and two steel plates 8"x5'-0"x1/4" at the heAder bearing location for a garage opening that was increased from 16' to 17'. I determined the moment and distributed the stresses to wood and steel by their stifness ratios. Question I have is how...
BigMig:
have you looked into the possibility to do a continuous longitudinal cut that allows the embedment of a steel beam. Im sure a good mason can do slit the baby.it might even be a vertical plate with a bottom flange or with no flange but drilled through bars staggered for a composite...
Hello:
Am designing a 5000 sf home in NW Dallas metroplex. Soil turned out to be expansive from soil report. Geotech recommended raised concrete slab on piers. Am new to drilled piers but upon looking at some projects that I have seen in the past I was wondering why it has to be a raised...
Hello all:
For curiosity, what soil bearing capacity do you guys use as a benchmark for the need of piles in highly cohesive soil. Geotech is preparing soil report but I was wondering how does this play out when IBC allows for footing design assuming a 1500 psf without a soil report. This is...
I have dealt with this situation before. While a thickened slab is typically sufficient from structural standpoint, code establishes that footings have to go below frost line. So yes, I would advise you to specify a footing to go to that depth otherwise plan examiner will likely reject it and...
NJ:
Thanks for your reply. I had this L/600 on the back of my head and L/240 I agree, is really low even for tempered glass. Door manufacturer is Andersen,so I think is fine on that side. Really appreciate your feedback.
Best,
RarebugRA, Austin TX
Hello All:
Wondering what value do you guys use for something like this. Customer wants a very large area glazed facing his rear yard. He wants the header above doors the skinniest possible. I am running some quick frame FEA with SAP. What allowable out of plane deflection you use. There will be...
Hello all:
Working on a Strip Mall (150' x 35') project where cantilevered parapet is being extended eight feet. 20 psf wind controls. Roof structure is open web bar joists @ 5'. Upon performing structural analysis it is found a 0.9 klf at the roof/wall connection. Largest moment appears there...
In my view, Full grout and properly spaced wall ties take care of differential. I have seen quite a few older buildings mixing these types of masonry without any problems. Maybe its just a commonplace myth.
