So do you think using bond beams under wall A with top reinforcement lap into back span sounds okay? I think it can be done if it is RC, not sure about blockwork.
I have this blockwork stair core as below. The architect wants it to be cantilever at landing. I am wondering if the blockall can be cantilever? If so can I simply use the bottom reinforcement Top reinforcement in cantilever wall 'A' to support wall 'B' (like stru-tie deep beam method?) Or do I...
Yeah you are right. Didn't think of that. I misunderstood what KootK said as cantilever behavior.
So what happens if I had already designed them as straight lines. (KootK reckon it should be fine but I still cannot fully understand the mechanism when it was designed as simplified straight lines...
400mm thick slab is because there are two more stories above and I didn't establish the full model. I just created this floor model only to see what happened.
I understand it will create a more stiff support with two close rigid restraint but what causes the uplift? I didn't expect one will be...
Slab is 400mm thick. I simply modelled them as rigid supports. Please find below M11 & M22 contours.
But... I don't get why the internal slab will be cantilevered considering there are internal supports?
Below is the 3D view. (I have also uploaded the Etabs model above). What happened was the architect make the RHS basement walls offset a bit and back then I didn't think that was a major change so did not bother re-calculate on this until yesterday.
It is just flat slab sitting on top of capping...
I don't understand this. So you are saying that the internal slab is being cantilevered by these two piers and thus making the loads on external piers to be uplift? What if I treat them as one support like normal as what I simplified? what will happen? This is killing my monkey brain now as the...
The units are all in kN.
That's why I get confused.
They are normal 150mm walls below. And I do have slab in the model.
I didn't include shrinkage or temp in the model.
I still cannot figure out why so I have upload the Etabs model.Link Can anyone please have a look...
Below is the screenshot of a basement I did and I have done some simplified hand calculation on the bored piers design by making the left hand side 'capping beam - shotcrete wall' straight instead of offset as shown and then when I use FEA analysis I realise that the reactions at the corner...
I have this 3 story residential house that contains a portal frame together with plywood and metal strap bracing at the ground floor. My question is how do I work the proportion of lateral load that will apply on the portal frame either by a simplified method or 3D computer model? Is it based on...
