Hi, question about a steel shade canopy (with solar panels) being put on top of an existing concrete parking garage (4-story SMF). The canopy is an ordinary cantilever column system but the plan reviewer is requiring that I design the canopy under section 13 of the ASCE for seismic purposes. He...
Hi! I'm looking for old allowable load tables or legacy ICBO report (PFC-4544) for this I-joist. I found out that they were bought by Weyerhaueuser a while back and the only old literature I can find is for I-joists up to 16" deep. The ICC site is not showing anything even for legacy reports...
Steel beam framing to another beam with a typical shear tab and 1 row of bolts in ssl holes. Where the end of the beam is at a concrete wall, it is connected to the wall with an embed plate and welded shear plate also with 1 row of bolt in ssl holes.
I have a reviewer telling me that these...
Hope someone can help me ID this steel joist.
It looks like a Butler joist with very similar hat channels as chords (with lips) but the end is not quite the same. The joist has square ends and attached to the side of the girder joist.
Also, I was told that Butler's are typically spaced at 5'...
Hi! I have a project where I have to design a small concrete containment pit for hydraulic oil. In case of a spill (we're talking about a small volume of oil, probably in the 10-20 gals range), the owner wanted a second layer of protection by putting a liner below and around the concrete pit...
I just read the news about the top Medicare billers and this story from years ago is somewhat linked to the Medicare billing story.
How is this practice not illegal? It amounts to a kick back scheme.
http://www.nytimes.com/2010/11/04/business/04eye.html?pagewanted=all&_r=0
If we do this on...
I would really appreciate if anyone here can ID this roof joist system It looks proprietary to me. The building is in NC. THANKS!http://files.engineering.com/getfile.aspx?folder=8fb16eaf-2c9f-47a5-a2ca-fc1ca3cccfbf&file=image_(2).jpg
Hi guys!
I'm looking for load tables or any info that I can find for Inland steel deck. The existing drawings dated around 1979 called it out as 'Inland 3" W-18 ga.' being used for composite floor slab. Wondering if the "W" designation would be similar to what the SDI has now for 3" deep deck...
Wondering how others do this.
Do you generate all your CD's (GSN, details, plans) from the Revit model or do you limit the CD generation to the plans and do your GSN and details in 2D CAD?
First time being involved in a project entirely being done in Revit and it is very frustrating.
I have...
Wondering if anyone here can ID this roof system and the manufacturer. It looks like a space frame system to me but not sure since the top members are only running in 1 direction. In typical space frames that I have seen, they normally run in both directions.
The girders are at 40' o.c. (top...
I think I read this here before but I can't find it anymore.
What is the absolute minimum steel plate thickness I can use for a tapped hole to put a 1/2" dia. A307 bolt? I mean minimum from a fabrication stand point only.
I'm not looking to develop the bolt capacity. Very lightly loaded, if...
I was wondering if someone here can point me to the right direction.
I'm trying to get the specs for an old piece of equipment (CNC) that is discontinued and no longer in production. The manufacturer has closed down so there is really no new company that took over the technology and IP rights...
I have this project where we are putting in a new folding partition at an existing 2nd floor (steel joists, steel deck & concrete). The folding partition mfr. stated that they don't need input from structural as their system is specifically designed for that reason.
It is a system where they...
I just got a new project (thru the architect) with a very big defense contractor. Now, to get access to the site we're being asked to submit to a background check, provide personal info and documents and answer a bunch of very detailed questions. I think what they are asking is very similar to...
I'm submitting structural plans to a jurisdiction where they have an option to go thru a normal plan review process (30-45 days) or I can get someone to peer review my plans and if the peer reviewer certifies the plans as complete and generally follows the intent of the building code, the...
If you're coming in with a new equipment enclosure screen wall on top of an existing building, are you allowed to use section 6.5.14 of the ACSE 7-05 (free standing walls and signs) to generate the design wind load?
In a new building construction, I simply use the generated wind load per...
I'd like to get a second opinion from guys who've done seismic evaluations of existing buildings before.
I'm working on a 4-story building with 1 level of basement. It's a type S4 building. The basement level footprint is wider at 4 sides to the typical floor footprint of the building (offset...
If you have it in a footing per AASHTO code(std. specs for highway signs, luminaires), do you need to somehow mitigate that condition or you just need to show that the OT factor is more than 1.5 and it does not exceed 25% of the footing bearing area? thanks!
Can someone kindly post the load factor table off the 17th edition of the AASHTO book? Not sure what the table number is. I have the 16th edition and just wanted to check if there's a difference from what is shown in Table 3.22.1A.
I would greatly appreciate any help.
Is there a significant difference? I was under the impression that AASHTO is patterned and in general compliance with ACI. This is for sign and light pole footing design. Thanks!
