understanding local axes in one way ribbed hollow block slab

[Anonymous]

I have one way ribbed hollow block slab. I want to represent this ribbed slabs using deck slab (one way) on orthotropic slab with ribbs in y-global direction with beams around. After calculation made, in the resutls maps how can I understand Mxx and Myy so no moments in x-global direction?

[Rafacascudo · Accepted solution]

On Results/maps set direction X to cartesian X global.
this way Mxx will be moment in the xz plane and Myy will be moment in the yz plane.
before that ,be sure you set the orthotropic direction correctly.

[Anonymous]

But how to set the orthotropic direction correctly?

Another question please:- why Mxx or Myy is in negative sign in mid panel and +ve at edges ?

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@Rafacascudo wrote:
On Results/maps set direction X to cartesian X global.
this way Mxx will be moment in the xz plane and Myy will be moment in the yz plane.
before that ,be sure you set the orthotropic direction correctly.

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[Anonymous]

I want the ribbed slab moments resulted from RSA the same as calculated manually. then the loads to be transferred to surrounded beams as manual. 

Is there any method to make load patterns (live load combinations in slabs) in RSA like SAFE program?

[Rafacascudo]

for orthotropy direction see below

moment sign in maps  is according to panel local Z direction . If it is positive , the moment is tensioning the panel Z+ direction side.

[Anonymous]

thank you very much.

How can I delete moments in non-continuous edges of slabs?

[Rafacascudo]

Delete or make it zero? I dont clearly understand what you want.
Maybe a screenshot would help!

[Anonymous]

In end spans slabs, how can eleminate the moments (zero moments) to be similar to manual calculations?

[AhmedZA · Accepted solution]

Add linear releases to Edge of slab