Strange RC reinforcement required output

[Anonymous]

Hi,

I am trying to model an existing slab on Robot and there are some strangely high reinforcement requirements around some of the supports. I have turned one corner which was meant to be linearly supported into a series of node supports and this has reduced this effect. The overall slab rebar requirement seems to be overly high over the entire model also, as most locations in both top and bottom layers requires 1257mm2 of rebar.

As I say, the slab was built a few years ago and is H20@200mm both bottom and H10@200mm both top. I have double checked the support and loading locations.

I have attached the model, made on robot 2018.

Thanks,

Joe

[ledinhchinh0409]

hi @Anonymous 

I have checked your model. Was it what you wanted?

[Anonymous]

Hi,

What I was wondering is why all the reinforcement requirement in the middle is 1257mm2. It doesn't seem right that that amount is needed near uniformly over the top AND bottom layers.