Double Stud and Enable, honestly guys thank you so much... I have been struggling with this, pulling my hair out, over the last few days. You guys are legends!!
Double Stud, could I assume that they have also taken into consideration the 50mm sand the is below the 150mm hardcore? I just use the same principle and used 45deg for the load dispersion into the sand, which gives me an overall base area of 1.369m x 1.369m. That then gets me to the figure of...
Thanks Double Stud for the quick response. Surely 202500 mm^2 is the area of the base plate (450mm x 450mm) alone, before the load disperses into the concrete slab and hardcore?
How does that then result in the figure of 74.54kN/m^2?
Hi All,
I am working through worked examples on designing base plates (based on Eurocodes) for educational purposes. I have come across what seems to be a computer generated example in which case a 450mm x 450mm x 20dp base plate is subject to a factored point load of 207.68kN.
I am getting...
Hi Greenalleycat,
In terms of limiting values, the beam bears in the plane of the wall onto the wall, therefore I am proposing to have the ends of the beam to bear approx 600mm-700mmm onto the wall, as opposed to typical 150-200mm. Just to be clear the beam will sit on the top of the blockwall...
Hi,
I had a question regarding loadings and load bearing walls.
If I have a steel beam with an end reaction of 180kN, would a 3m high wall comprising of 7.3N/mm2 blockwork as the inner leaf be suitable to use? I would assume a concrete padstone of approximately 900mm long x 100mm wide x 300mm...
Hi jayrod12,
Many thanks for your reply. Following on from my previous response I can confirm that the masonry wall will be running bond and I am looking to use 7.3N/mm^2 blockwork.
Forgive my ignorance but I have been using BS-6399 Part 1 for working out load chase downs. I take it I need to...
Hi phamENG,
The wall in question is a 100mm thick blockwork wall so i have assumed a dead load of 2.4kN/m^2, which I have multiplied by the height of 3m to work out the load take down of the wall itself.
Its more about including the end reaction of 25kN which I am stuck on.
Thanks,
S
Hi All,
I think this is bit of an easy one but could definitely use some advise.
What is the correct way to take into account/ calculate the transfer of a load from a beam, onto and down a load bearing wall and subsequently into a foundation?
I have a steel beam with an end reaction of 25kN...
Hi Koot K,
Many thanks for your response and understood.
Just to be clear, when you say back span you are talking about the beam to the right hand side where there will need to be some moment connection designed?
Koot K,
Many thanks for your repsonse. I have a few questions,
1. With regards to the staircase how do you propose the first flight to second fligh junction is supported? (ie. where they meet perpendicularly?)
2. With regards to the area of the loft floor floor that I am struggling to...
Hi
Forgot to add the sketch.. Please see below
https://res.cloudinary.com/engineering-com/image/upload/v1634571784/tips/STAIRS_hfrayi.pdf
https://files.engineering.com/getfile.aspx?folder=077d6945-95dd-4a3d-be56-37fc0389890f&file=STAIRS.pdf
Hi All,
Please see attached a rough sketch I have drawn up. I am proposing to install a precast concrete staircase within the loft space.
If you refer to the pdf attached, the red lines spanning up-down the page refer to load bearing walls. As you can see the shape of the staircase is an l...
Hi,
I have come across a very big problem on site at one of my projects. The bricklayer completed the masonry up to first floor level today and when the building control inspector came to visit he pointed out to me that there are no movement joints on either the inner or outer leaf. I proposed...
Hi,
Just posting to gain a better understanding of the applicability and analysis of rigid frames...
I am a project manager/ developer and I am typically coming across residential properties with proposed single storey wrap around or rear extensions, where the design involves demolishing the...
Jayrod12 - My SE has calculated an end reaction at the junction where the old and new ridges meet of 6kN. He has advised that no post is needed there and that will be a detail the roofer will have to come up with where the ridge beam meets the existing truss and new layboard within the cut...
Honestly guys, this forum has helped me squash all those worrying questions that pop up in my head randomly during the middle of the night! So i can't thank you guys enough!
KootK I spoke with a truss specialist this morning and he said he would typically see valley set truss at junctions if...
J StructSteel - Although that would easily solve my issues, I want to try and avoid disrupting the existing house as much as possible. It is in great condition and honestly needs no internal work to it. Bringing a new post down to a pad footing within the existing footprint is going to exceed my...
Dhengr - Thats what my roofer was saying as well, definitely have a post on the dashed line and to the left of that post have a 'stick built frame'. My only question is even if the new roof over existing roof (right of the post on dashed line) is overbuilt, would you not need another post where...
Thanks for all the responses and apologies for the delayed response.
If everything was to go to plan and I did take on the property to develop I think I would aim to have minimal disruption to the existing house and its roof structure.
I spoke with a roofer who completed the roof on my actual...
