But what horizontal deflection is acceptable? In my mind it seems that any horizontal deflection at all won't be acceptable because it will rotate the post and its footing. Am I wrong?
The columns are 6x6 cantilevered steel columns.
So my A-frame can't be designed as a self-contained structure that only places vertical loads onto the column? Please forgive my ignorance. I thought the purpose of the pin-roller design was to prevent thrust from being delivered to the column.
In #2 you are recommending that my columns be...
That's what I've originally done it as, but it creates a 3.5" downward deflection at the peak, and a 2.5" horizontal deflection at the right end. I've got the angled beam bolted to the top of each column so a 2.5" deflection will rotate the column which is unacceptable I'd think.
I mean I only...
Yes, my model is showing a 3.5" downward deflection at the peak, and then a 2.5" horizontal deflection at the roller support on the right end. Do I need to change my design to a pin-pin? Doing so creates a horizontal force of 19 kips at each end!
Thank you all, I appreciate the feedback. Sorry I didn't respond to your messages over the weekend. I got in a minor-ish car accident a couple of days ago and have been dealing with that. Of course it was the other driver's fault and they don't have insurance...
Yes, as you have figured out my...
Hi all. I'm looking at a steel pavilion for a friend and am looking for some confirmation/guidance. I mostly work with wood-framed structures so this easy project is challenging me more than it probably should. As you can see below it is a pavilion with 3 steel a-frames/bents/cranked beams...
Thanks for your thoughts!
They have some angled brackets at the unit and the steel beam, so the rods themselves don't go through at an angle.
They are spaced at 16'-0".
Yeah, that was my thought as well. With the trapeze, the rods would miss the wide flange and have to attach to the z-purlins.
Hi everyone, I've got an interesting project here that I'd like to see if anyone has any insight on.
The owner of an auto shop hung a 450 lb. furnace from a steel roof beam. The city found out and is now requiring seismic bracing for the furnace, so the owner called us to take a look. See the...
Thank you all for your suggestions. I think I will propose bones's solution with a beefy strap/plate on the bottom and also Kootk's suggestion of some sistered members to the owner and see what route he wants to go.
Here are some additional pictures to hopefully answer some of the questions that have been raised. The crack does go through the full 3" thickness and you can see a knot in the bottom of the joist. The area received the most snow it has seen in any winter since 1983 so I think it definitely was...
Hi everyone,
I'd like to get some input on this project I am working on. The client owns an A-frame cabin that was built in the 1960s in an extremely high snow load area (around 250 psf ground snow load). The A-frame is constructed with 3x10 beams spaced at 48" o.c. with 2x6 T&G running...
Ah sorry, it IS a 2X4 framed wall that sits on top of the 8"x9' concrete foundation wall.
The more I think about this the more I'm thinking that the only way to get a new joist or LVL in would be to cut through the rim at the back of the home and then thread through all the way to the garage...
Thank you all for your responses!
To answer a question that a couple of you have asked about why we don't want to go with a BEAM...The main reason is actually budget. There is another part of the project that I haven't shown because it's not relevant to my question above, but it they are...
Thank you all for your thoughts.
This solution would be amazing, but it also makes me queasy just thinking about it. The new joist would be transferring the bending and shear load back into the two separate existing joists and I'm not sure how that kind of connection could even be calculated...
Hi everyone, I've got a situation here with a proposed fix that I'm curious if anyone has some input on. I have posted a picture below of the second floor framing plan for a home that is going to be remodeled. The two bubbled walls are to be removed to open up the kitchen. When I was at the home...
Thank you everyone for your feedback, I appreciate it!
Unfortunately this beam runs across the garage in such a way that any column put in would be right in the way of where the cars would drive into the garage.
Yeah when I saw the pictures I couldn't believe my eyes
Hi all, wanted to get some feedback on this. A potential client approached me saying that they are wanting to buy this home, but the inspector noticed that the 5 1/8" x 16 1/2" glulam beam in the garage has some large holes drilled through it for the garage door opener. See the drawing below for...
Thank you all for your input. I didn't like the idea either but I wanted to do some due diligence before coming out with a knee-jerk NO.
Lol yeah...the wonderful world of residential engineering.
Would like to get some feedback on this. Client has an approx. 27' long LVL beam across his family room to bear the second floor joists above. The beam currently breaks over a bearing post at approx. 9'. The client would like to remove the bearing post.
Another engineer wrote a report for the...
Hi everyone,
I have been asked to engineer a set of floating stairs for a residential project. I have attached the PDF from the steel fabricator below. The idea is that the treads are HSS 10x2x1/4, and each tread is to weld to a 1" thick x 10" tall "spandrel" plate that forms the exterior...
