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How to make ETABS
models
Email: [email protected] : +2/012/6227563
Note : for intermediate student in computer program not beginner
Please any note call me to discuss it .
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Example :Our example residentialbuilding consist of 20story need to makeANALYSIS & DESIGNwith ETABS program :
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we choose default of program
Starting ETABS.
At start convert unit to the unit you work with
From file list
new model we get this massage
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Define the Grid. When chose default thiswindow appears
choose grid only
in our examplenumber of stories 20 story height 3m units kN -M
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Plan View / 3D View.
Your screen should
show one window
with a grid plan view
of your model and one
window with a grid
3D view of your
model.
Make sure the KN-M
is selected as your
units in the lower right
hand side of the
window.
Now is a good time to
save your model, so
click on the File/Save
and find a suitable
location for your file.
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Now import your DXF file from *file / import / DXF floor plan
Choose your file and open it
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Choose layers to
each element
(beams ,floors
,etc.)
Choose the story you insert
DXF in it
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Define the Materials.
Next, we will define the
materials used in the model.
Concrete 40 & 60 grade will
be used.
The two materials will be
defined in successive steps.
ClickMaterial Properties
from the Define pull down
menu.
ClickAdd New Material
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For concrete 40 N/mm-Type C40for the Material
Name.
-Select I sotropicfor the Type
of Material.
-Type 2.5for the Mass perunit Volume.
-Type 25for the Weight per
unit Volume.
-Type 28E06for the Modulus
of Elasticity.
-Type 0.2for Poissons Ratio.
-Type 9.900E-06for the
Coeff of Thermal Expansion.
-Select Concretefor the Type
of Design.
-Type 32000for fc.
-Type 460000for fy
-Type 460000for fys.
-ClickOK
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For concrete 60 N/mm
The difference here
Modulus of elasticity equal
0.2*60(grade ) + 20 = 32
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Define the columns.
Next, we will define the
concrete columns used in the
model. 25x80 cm columns
will be used.
The two concrete materials
defined in the previous step
will be used to define the
columns.
ClickDefine/FrameSections from the pull
down menu.
Select Add Rectangular.
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Define the 25x80 Cm column.
Type C25X80C60 as the
Section Name.
Select C60 as the
Material.
Type 0.8mfor the Depth.
Type 0.25m for Width.
ClickOK.
Cracked section
design
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Define the Shear walls.
Next, define the concrete shear
walls used in the model.
C60shear walls will be used.
The concrete material defined
earlier in the tutorial will be
used to define the shear walls.
ClickWall/Slab/Deck
Sections from the Define
pull down menu.
Select Add New Wallfrom the
Click to: menu.
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Define the C60 shear wall.
Type W25C60 as the Section Name.
Select C60 as the Material.
Type .25 for the Membrane Thickness.
Type .25 for the Bending Thickness.
Select Shell as the Type.
ClickOK.
Cracked section
design
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Define the slab.
Next, define the concrete slabs
used in the model.
C40slabs will be used.
ClickWall/Slab/Deck
Sections from the Define
pull down menu.
Select Add New slabfrom the
Click to: menu.
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Define the slab 22 cm post tension C40.
Type S22CMPT as the Section Name.
Select C40 as the Material.
Type .22 for the Membrane Thickness.
Type .22 for the Bending Thickness.
Select Shell as the Type.
ClickOK.
Important note:-
The slab is post tension so
there is no cracked section
design that mean no
modifiers
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Drawing & assigning column and shear wall
First drawing column Select the point u want to be a column
ClickExtrude points to lines from
Edit menu.
Type -3 for dz.
ClickOK.
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Assigning column sectionSelect the column
ClickFrame section from frame/line
From Edit menu.
Select C25x80.
ClickOK.
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Second drawing shear wall
-Select the lines u want to be a shear
wall
-ClickExtrude lines to Areas from
Edit menu.
-Type -3 fordz.
-clickDelete Source Objects.
ClickOK.
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Assigning shear wall sectionSelect the shear wall
Clickwall/slab/deck sectionfrom
shell/areaFromassignmenu..
Select W25C60.
ClickOK.
Save your model.
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Assigning Biers for wall sectionsSelect the shear wall each part alone
If the shear wall consist of HZ & VL
part (core) select HZ alone and VL
alone
Clickpier label from shell/area from
assign menu
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Each wall appears its name on it