Staad Reinforced Concrete Str. 3 floors
Staad Reinforced Concrete Str. 3 floors
(OP)
Hi i need some help. I'm currently designing a 3-storey reinforced concrete house in Staad.pro 2007. Problem is I worked as a design engineer for about one year and then as proj manager for 3 years. So now i'm a bit rusty with my designing. Can someone please look at my design and let me know what i'm doing wrong.
I need help with the following:
1. I know that i have to adjust some of the beams sizes but what about everything else? Is there a way to design the pad footings (individually) without inputting the dimensions for the footing and only the bearing capacity of the soil? Can I use fixed supports and design the footings by hand or will this affect the design significantly?
2. I can't remember if i need to release moments and when do i have to release moments.
3. Is there a way for staad to automatically adjust individual beam sizes that fail? I would normally create a beam spec and add it to all the beams in the structure. Will i have to adjust each beam individually and add each individual dimensions as a beam specification?
I need help with the following:
1. I know that i have to adjust some of the beams sizes but what about everything else? Is there a way to design the pad footings (individually) without inputting the dimensions for the footing and only the bearing capacity of the soil? Can I use fixed supports and design the footings by hand or will this affect the design significantly?
2. I can't remember if i need to release moments and when do i have to release moments.
3. Is there a way for staad to automatically adjust individual beam sizes that fail? I would normally create a beam spec and add it to all the beams in the structure. Will i have to adjust each beam individually and add each individual dimensions as a beam specification?





RE: Staad Reinforced Concrete Str. 3 floors
I'm not trying to fob you off; but seriously, if you (the designer) are not sure where you should or should not be modelling pins, this suggests you have a very limited understanding of structural behaviour, and the chance of getting a meaningful analysis and design is very small!
RE: Staad Reinforced Concrete Str. 3 floors
Thanks for no help at all :S
Anyone care to give actual advice?
RE: Staad Reinforced Concrete Str. 3 floors
2. You have to release moments in your analytical model wherever the construction details cannot carry the bending moments whcih would be genertaed in a fixed connection - this depends upon the construction details you are using. We cannot give guidance on this issue based on the Staad.Pro model you uploaded.
3. Yes, Staad.Pro can be used to iteratively check beam and column sections, pick new complying sections, and re-run the analysis until all sections pass the design check - assuming you have the code design check module installed.
Hope this helps! If you need further assistance, please refer back to my first post for guidance.