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willjvizcaya
Posts: 29
Registered: ‎09-25-2012
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Trapezoidal preasure load and friction loads on Silos

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12-05-2012 12:28 PM

Good Afternoon.

 

Ive been modeling a cilindrical Silo. wich is supposed to have 2 different kinds of loads according to ACI 313-97:

 

Heres is a description of what im intending to do.

SILO LOADS.jpg

 

1. Blue Load: is a Frictional Load, wich goes increasing according to the Silo Depth.

2.Yellow Load: A linear Load on surface, wich increases for the Ganmma * Height like hidrostatic Load.

 

I tried to assign de 2nd case as a hidrostatic preassure load, with the boundaries of 8meters (top of material). for this case, i have no idea what the program is assigning, as for the 1st case, i couldnt find a load type that fits my needs.

 

What do you suggest?.

 

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Artur.Kosakowski
Posts: 4,769
Registered: ‎12-17-2010

Re: Trapezoidal preasure load and friction loads on Silos

12-06-2012 01:50 AM in reply to: willjvizcaya

See the attached pictures.

 

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Artur Kosakowski
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jorge.lopera
Posts: 39
Registered: ‎09-21-2006

Re: Trapezoidal preasure load and friction loads on Silos

12-10-2012 08:02 AM in reply to: Artur.Kosakowski
Dear Artur, Could you explain how to select the right A, B, C points to apply that frictional load? Thanks,
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Nexsys de Colombia
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Artur.Kosakowski
Posts: 4,769
Registered: ‎12-17-2010

Re: Trapezoidal preasure load and friction loads on Silos

12-10-2012 08:12 AM in reply to: jorge.lopera

E.g.

A: on the axis of the silo with Z being the coordinate where the load 'starts' (e.g. 0,0,10)

B and C: symmetrical on 'both' sides of this axis at the point where you know the value of load (e.g. -4, 0, 0 and 4,0,0)



Artur Kosakowski
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willjvizcaya
Posts: 29
Registered: ‎09-25-2012

Re: Trapezoidal preasure load and friction loads on Silos

12-10-2012 08:17 AM in reply to: willjvizcaya

good morning Artur.

 

I have the same problem, cant find how to make tha A, B, C definition, is there any chance you could make it graphically?

 

Thx.

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Artur.Kosakowski
Posts: 4,769
Registered: ‎12-17-2010

Re: Trapezoidal preasure load and friction loads on Silos

12-11-2012 12:00 AM in reply to: willjvizcaya

 

I have the same problem, cant find how to make tha A, B, C definition, is there any chance you could make it graphically?

 


ABC.png



Artur Kosakowski
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