The EOR calculated the required profiles and we make the calculations of the details. The stresses are a bit lower then yielding but in my example i said yielding to get my point across.
In the situation that the column flange is close to yielding the thicker beam flange would not increase the...
In a normal hole the bolt is supported under the entire bolthead. with a slotted hole this is not the case. You can check the shear force under the bolthead with the red area in picture below as an indication how strong the slotted hole may be:
Thank you all for the replies.
Yes indeed this is a short but heavy column where buckling is still governing but the stresses are very high(in both the beam and the column). This was the detail given by the EOR and architect.but we need to make the calculations.
Software we use for detailing...
Yea the stress is at a different angle. But combined and the calculated with lets say von mises the total exceeds the limit of the material. So why shouldnt it be checked? Is it stated somewhere?
Im from eu but will check the aisc
Hello,
Lets say i have the situation in the image below.
Lets say that the stress in the column is near yielding. The compression force has to go trough the plate, then the flange and then the stiffeners down to the other column.
Wouldnt this mean that the flange under the column is also...
Thank you. I still have a lot to learn.
I have talked about my mentor about the issues we have discussed here and he says that yes everyone in this thread is correct. But as you said we do not make the general structural design. And the people that do ,do not consider moments in the column to...
I thought so already. But this is what my mentor tought me. We only make the details and not the main calculations. In the main calculation the beam is simply suppported at the center of the profile and no moments are taken in consideration. That is why we see the connection as part of the beam...
I really like this design. Tommorow i am going to try to recreate it.
The beam were the frame brace is connected to will now be loaded with an extra moment like discussed before. Would it be better to move this point up to the middle of the beam or is this actually the location that you prefer?
The bracing element is a UNP180 and is indeed the yellow element. And the HEA beams introduce the force to the UNP's. I have moved the centerlines to allign with eachother.
One thing that wasnt clear to me is the following:
Why is it expected to move the column to the top?
And sadly the link...
Thanks for the detailed answer. But to make sure i understand correctly (english not my main language)
The connection moment talked about in (#4) is the moment induced by the eccentric diagonal. And is applied to the beam to check it. In reality the force goes to all components related to the...
Thanks for the detailing example! There are no normal forces between the 2 beams. the normal forces of the truss are all internal.
I also looked up UFM. Thats definitly something I have to look at more closely.
But now the diagonal of the truss is hanging freely untill it is bolted to the...
The column with beam and wind diagonal. The column in question is the middle one:
Normal forces of the truss:
moments of the truss:
Moment and reaction force of HEB550 (533 kN)
It is supposed to be a pinned connection. But the load is high. Just for the shearforce i need atleast 8 M30 bolts. So there is no room for that kind of detail? And if the connection is brought out the bolts need to take an extra moment in the connection.
I just started out and this is the...
The person that is teaching me prefers the location of the diagonal like this because then the connection is more compact and the welds of the plate that connects member4 are loaded with just shear force and no moments.
I will move the UNP up as there is no reason not to. Its more about the...
I am still learning about connection design and everything will be checked by a senior constructor but i have some questions regarding eccentricity's.
It is about the following joint:
With the following normal forces:
The diagonal is eccentric towards the upper beam of the truss. This will...
