12-21-2009, 02:35 PM
(This post was last modified: 12-21-2009, 02:38 PM by jcoronellr.)
Continuing the example
greetings
Lets start by discussing a previous step, as is the pressure to generate lateral thrust from either land or water.
to generate lateral pressure of earth or water on the walls of example, we can model different distributed loads, according to the depth of the walls and each elevation level with the height of the mesh applied, ie for each horizontal strip of areas .
Another way is to manually generate the charges is the general equation = Ax By Cz D
for the field P = 0.50 * specific gravity of the plot * h2 * Ka
Ka = 0.41, specific gravity = 1.8 h = 1.70, then Pt = 1.07 t/m2. this burden to implement the model we must divide the number of shell elements for the example is 7 nodes then 1.07 -0.15 = 0.92, 0.92 to 0.15 = 0.77, etc..
For water with c = -1, and the constant d = 1.70 m ...... that define the direction and height of water to the walls, P = [-1 * Z 7] x specific gravity of water = - 1000 * Z + 1700 = kgm / m2, vary the heights of water = Z, [1.7, 1.7-0.15 = 1.55, 1.55 - 0.15 = 1.4 and so Sucec
now the burden is placed on the wall nodes.
If I'm wrong please correct me thanks
Well, before hand that Sap2000 is easier to perform the exercise, as it brings the general formula implied, but the idea is to see that with ETABS can also be done and ETABS steels us more directly on the walls . because gender as piers.
continue after I leave here with a different image of the burdens placed into the model.
jcoronellr
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Hi, you develop this practice or proposed to be developed by forum members?
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greetings
The idea is to show that with ETABS can model this type of structures and obtain good results, can say that its logical
Jcoronellr