The columns is HSS 8x8. I like the idea of beating it flat and welding a reinf plate. The contractor specifically asked for this type of repair detail as it's what they've been using and what the client was expecting as far as cost. And I am comfortable with it.
I am working on a small project to reinforce the base of an HSS column that was impacted by a forklift 15 years ago......
The tenant is moving out and it's part of their lease agreement to repair it.
Under normal circumstances I would just weld cover plates or angles to the corners and extend...
I am working on a proposal for new design for a 5 story apartment building. First story will be precast concrete with a 4 story wood structure above.
The building is proposed to be 153,000 square feet, about 34k sq ft on each floor. I've attached a few photos below. If I base the fee on approx...
I wanted to provide an update on what I've done so far:
I used TEDDS to calculate the Ix of my joist using the section builder:
Then I did the same thing for 18H8 out of the 1967 Ceco catalog, for which I have the section properties of the chords as a sanity check:
The Ceco catalog has the...
Hey everyone, I received a response from SJI.
Their response:
"The joists you have presented look most similar to Butler (non-SJI) products. Attached is everything we have for this company. The information provided and the comments made concern a company that was not a member of the Steel...
I also came across this Butler joist truss purlin catalog from a friend. Some of the bottom chord thicknesses and web members thicknesses are what I measured but the depths are not. I wouldn't think that the joists would be overstressed sharing 1700# across three joists but they are. I'm basing...
I have a project where the client is planning to add a 1,700 pound RTU on an existing roof. The proposed RTU is 115"x64" with the long direction perpendicular to the roof joists preferred. I've attached a sketch of the layout. There is a 8" CMU wall that can be taken advantage of if necessary...
I am reviewing some architectural plans to provide markups and wanted to get people's thoughts on some roof framing. I've attached a screenshot of the framing. There is a vaulted ceiling at one side of the house and tray at the other. There are some struts provided with H10S connectors for...
In this case, it's a four seasons room sorry. There is an existing three seasons room replacing with four seasons room and they want to potentially add a second story addition at some point. i forgot to mention that, thanks for reminding me.
I'm looking at Table R602.10.5 of 2018 IRC and see the portal header height is 18" for a 9' wall height, for a continuously sheathed portal frame. Idk if I'm interpreting this table correctly but where is it showing the minimum panel length?
So the best approach here is to just have a steel moment frame and have the joists sit on that and everything tied together at the top. I didn't check the shear walls yet, but 1'5" long x 9' high sheathed walls likely aren't adequate even though lateral loading is relatively small.
I'm designed a small three seasons room addition to a house and had a question regarding shear walls. The addition is 20'x9'x9'(H), see attached files. There are windows around the perimeter of the room. At first I was thinking of running headers below and over the windows(between the posts, so...
That is correct the chloride is by eight of the cement. I would say the result of salting during the winter. The building is in the north. The rooms below the affected area are boiler rooms and laundry. I didn't test the humidity in those rooms. To answer your question I think the top of the...
I am showing stainless pins to be installed with a stainless screen along the bottom. My thought is that this will reinforce the repair. I do have petrographic results from testing of 4 cores. In the top two inches the values range between .07 and .126 and decrease to below 0.06% below two...
I have a situation where I'm working with a contractor and owner on repairing concrete at the underside of an existing driveway slab at an apartment building. The concrete under about 60% of the slab had spalled and the exposed bars were corroded with some section loss. it is my understanding...
Thanks for all the comments, the drawing was in progress and prepared by someone helping with drafting. That was fixed. I did change it to LU face mounted hangers as it's much easier to construct. I can't say why in some situations I prefer top mounted hangers, but I believe after reviewing that...
I'm designing a beam to carry the load in place of a bearing wall to be removed. the opening is about 20 long and carrying a parallam and 2x12 floor joists on each side of the beam. I am using a W12x35 with blocking bolted through the web. Using face mounted hangers seems to be the easy solution...
RPGs...so you are saying you set the second story on the masonry or on the added interior wood framed walls? I'm in the Chicago area, low risk seismic. I just received a call today from someone looking to qualify a foundation for additional second story addition loads. I was sent the drawing and...
Thanks for the input. From a practical standpoint, I agree with milkshake. I see a lot of two wythe buildings unreinforced that are two to three stories tall and still standing, but performing analysis with todays building codes is another issue. I don't personally like the idea of a second...
