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Moving load on inclined slab

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Message 1 of 13
Rafacascudo
966 Views, 12 Replies

Moving load on inclined slab

slab has  a smooth  grade .

If vehicle with concentraded loads run in the perfect longitudinal direction , load components are perfectly created.

 

If this same vehicle run in an inclined route in relation to the longitudinal direction(as shown in the picture) , load components of this part of the route are not created or at least they´re not applied to the slab.

 

If vehicle is created with planar loads , load components are perfectly created in every route segments. Is there a way to make a concentrated loads vehicle work on this route/structure geometry combination??Inclined slab 1.jpgInclined slab 2.jpg

Rafael Medeiros
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12 REPLIES 12
Message 2 of 13

Could you attach this model?



Artur Kosakowski
Message 3 of 13

TT5 load case. Change the vehicle to caminhão 36tf(concentrated loads)

Rafael Medeiros
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Message 4 of 13
Rafacascudo
in reply to: Rafacascudo

Still in the moving loads subject.

 

1- Is there a way to show envelope diagrams for panel cuts displaying max/min values as it happens on regular bar diagrams??

 

2- Is it possible to show envelope values,max/min for reduced forces/moments from custom cuts in the "panel cuts" dialog ,like it is shown on reactions? it would be something like

 

Reduced Forces (X,Y,Z) = -1.2/5.5 , 2.4/7.0 , 12.4/32.5 (tf)

 

It takes some time to find max/min values manually checking several load case components one by one.

 

3- Is it possible to show results from custom cuts in tabular format???

 

Will you surprise me on these or is it everything to the wish list???Smiley Happy

Rafael Medeiros
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Message 5 of 13
Rafacascudo
in reply to: Rafacascudo

Hi, any ideas for the doubts on this thread?

Rafael Medeiros
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Message 6 of 13

TT5 load case. Change the vehicle to caminhão 36tf(concentrated loads)

 

The concentrated forces defined in the definition of a vehicle are applied to a panel as concentrated forces in a point. These are the geometrical load and to be correctly recognized they have to be defined exactly in the plane of the panel. The 'plane' of the vehicle is defined as perpendicular to the local z axis of each segment of the polyline (route). When it turns the direction of the local Z of its segments is no longer perpendicular to the panel and the outer loads miss its target application plane (this is why you can see only two forces which are exactly on the polyline to be applied correctly). You could deal with this applying the gamma angle to the polyine's segments but this will not solve the positions where the route changes its direction (two different gamma angles for each of the neighboring segments).

 

 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

 

 

 



Artur Kosakowski
Message 7 of 13

So the best solution in this case is what I´ve done.Use planar loads vehicle. What about the other questions? all of them to the wish list or are there any workarounds?

Rafael Medeiros
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Message 8 of 13

See the pictures.

 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.



Artur Kosakowski
Message 9 of 13

Thx Artur,

 

questions 1 and 3 - Ok, not  as bar diagrams or tables ,but that´s fine

 

question 2  - I´m more interested on envelopes for reduced forces (axial force, in-plane shear and moment) like those acting on the large wall shown in this thread initial post.

 

Diagram analysis table from reduced forces tab shows zero values when more than 1 load case, or moving load + or - is selected

 

Also , reduced forces and reduced moments show on screen in format (X,Y,Z) =5.5 , 7.0 , 32.5 disappear when more than one load case is selected . It would be nice to visualize something like

 

Reduced Forces (X,Y,Z) = -1.2/5.5 , 2.4/7.0 , 12.4/32.5 (tf)

Rafael Medeiros
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Message 10 of 13

On the wish list Smiley Happy



Artur Kosakowski
Message 11 of 13

Artur ,

 

regarding the user´s panel cut reduced results table from diagram analysis.

 

is there a way so send it to printout composition??Only the 1st tab table goes into a screen capture.

 

I´m not even able to copy and paste in excel!!

Rafael Medeiros
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Message 12 of 13

I have made a test and as far as I can see the screen captures from the first two tabs are correctly visible in the Printout Composition whereas the Reduced Results tab is 'relaced' with the Values one. The only solution I can think of is to make a Windows Print screen instead and insert t into the final printout.



Artur Kosakowski
Message 13 of 13

So ,one more thing for the wish list!

Smiley Happy

 

thx

Rafael Medeiros
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