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I get your idea of assigning restraints to vertical transferred members. But what happens if you have more than one level of transfer slabs? Lets say level 2 and level 3 are both transfer slabs. To design level 3 I can assign restraints to vertical transferred members above level 3 but what do...

It is because of crack is not predictable that I am not confident to use this 'reducing stiffness' method especially when more than one transfer slab is involved and prefer a load rundown method to 'peace my mind'. So how do you normally design the transfer slabs?

Is this the approach that you use to design transfer slabs? I did think of revising the stiffness to say 0.25 for slabs in the full model but still not confident to use the loads directly from the full 3D model. Can anyone please confirm that this method has been used in your projects without...

I am not familiar with Ram structural System to be honest. Ram concept doesn't allows me to import any loads or the like. The only way I can think of is importing Ram Structural System and that's why I mentioned it? I am not sure how can tributary area load rundown be done (floor by floor) when...

I think the Strategy 2 in the link cannot apply to concrete structure because it doesn't take the behavior of cracked concrete into consideration unless you run non-linear analysis, and this will affect the loads applied on transfer members. Another concern is like what rapt mentioned -...

Thanks for your reply Rapt. If I do load run down, is there any quick way to applied the reactions from upper floor as loads? I find it very time-consuming to manually put the loads. Not sure if there is any quick method that I don't know.

Thanks retired13, by outdated do you mean the floor by floor load run load method? I do use 3D FEA package but my concern is that we cannot use the loading from the full 3D model for transfer slab design because of the non-linear behaviour of concrete. What software do you use? thank you.

Hi guys hope you all safe during this hard time. I have a structure that contains many levels of transfer slab and I am looking for a convenient way to build the model in FEA package, say Ram Concept. This is what I am doing now Analyse and design the slab based on floor by floor load run down...