Export from ETABS into Perform3D

**Page Still Under Construction** 

Versions 19.0 and newer of ETABS allow the Exporting of ETABS models into Perform3D models.


When performing an export from ETABS, you have the following choices: 


Information about export of Perform3D model from ETABS can be broken into the following main sections: 

Perform3D Model Units

Program select units based on ETABS current database Force and Length Units. Value of gravitation acceleration is calculated based on these two units.   

ETABS

Perform3D

ETABS

Perform3D

in

in

kgf

kgf

ft

ft

kip

kip

micron

NOT SUPPORTED

kN

kN

mm

mm

lbs

lbs

cm

cm

N

N

m

m

Mgf

Mgf

An example of how the export report file documents the units translation is shown below: 

1 - Perform3D Model Units

     Force Unit = kN

     Length Unit = mm

     g = 9814.6 mm/s^2

Reading ETABS Model

The export routine reads the ETABS model to convert the it into an equivalent Perform3D Data as described in the.  

An example of how the export report file documents the translation of the Materials, Frame Sections, Shell Properties, Joints, Constraints, and Frame Releases (sections 2a through 2g) are shown below: 

2 - Reading ETABS Model
a) Materials

     Total Concrete Materials = 12

     Total Steel Materials = 2

     Total Rebar Materials = 2

     Total Materials = 8

b) Frame Sections   

     Total Frame Sections = 5

c) Shell Properties

    Total Shell Properties = 19

d) Joints

    Total Nodes = 127

    Nodes are sorted w.r.t Z, Y and X coordinates.

e) Constraints

    Total Constraints = 51

f) Frames

    Total Frames = 3495

g) Frame Releases

    Total Frames haves Releases = 1089

    Total Frames Releases = 2030

h) Shells

The export routine reads the Area Objects and checks to see if they cam be exported to Perform3D.

Perform3D only allows quadrilateral area objects and has strict checks for element shape and connectivity. All triangular area objects are meshed into three equivalent quads. The program documents the warnings and errors about export of shells as shown in the following example of the export report file: 

    SHAPE WARNING - Area creation warning for nodes 273C,273-12,2051and 273-31.

    SHAPE ERROR - Area creation Error for nodes 273C,273-23,3459and 273-12.

h) Shells

    Total 4-Noded Shells Object = 3679

    Total 4-Noded Shells Object = 64

    ** Triangle Shell Objects (64) are present in model. **

When the report file issues a "SHAPE WARNING" message (as shown above) it means that the area object was exported.  However, when the report file issues a "SHAPE ERROR" it means that area object was not not Exported into Perform3D.

An example of how the export report file documents the translation of the Load Patterns, Joint Loads, Frame Distributed Loads, Frame Point Loads, Check Frame Points, Shell Loads, Shell Point Loads, Frame Sections, Shell Sections, Sections in Frames, Section in Shells, Frame Type, Shell Orientation, and Mass Source (Sections 2i through 2v) is shown below:

i) Load Patterns

   Total Load Patterns = 6

j) Joint Loads

   Total Nodal Loads = 277

k) Frame Distributed Loads

   Total Frame Distributed Loads = 0

l) Frame Point Loads

   Total Frame Point Loads = 0

m) Check Frame Points

n) Shell Loads

    Total Shell Loads = 0

o) Shell Point Loads

    Total Shell Point Loads = 0

p) Frame Sections

q) Shell Sections

r) Section in Frames

s) Section in Shells

t) Frame Type

    Total Concrete Frames (Beams) = 2751

    Total Concrete Frames (Columns) = 616

    Total Steel Frames = 0

    Total Other Frames = 0

u) Shell Orientation

v) Mass Source

    Total Mass-X = 74.674898969553 kN/mm-s^2

    Total Mass-Y = 74.674898969553 kN/mm-s^2

    Total Mass-Z = 74.6748989695533 kN/mm-s^2

w) Time History

     Total Time History Functions = 8

x) Load Patterns Checks

    Total Load Patterns Empty = 5

y) Merging Diaphragms

z) Drift Nodes

aa) Frame Hinges

     Total Frame Hinges = 0

ab) Embeded Beams

      Total Areas Connected to Embedded Beams = 878

Perform3D Model Initialize

3 - Perform3D Model Intialize

     Control variables ... OK

     Frame data ... OK

     Node data ... OK

     Element data ... OK

     Nodel Load patterns ... OK

     Element Load patterns ... OK

     Self-Weight Load patterns ... OK

     Structure sections ... OK

     Drifts and Deflections ... OK

     Limit states and Limit state groups ... OK

     inelastic components ... OK

     Elastic components ... OK

     Materials ... OK

     Cross sections ... OK

     Strength sections ... OK

     Compound components ... OK

     Load cases and analysis series ... OK

     Load case combinations ... OK

     Set up default end zone ... OK


Perform3D Nodes

4 - Perform3D Nodes

     Total Nodes Exported = 7100

     ETABS and PERFORM 3D models have same Joints/Nodes names.

     Node Export ... OK

Perform3D Constraints

5 - Perform3D Constraints

     Total Constraints Exported = 51

     Constraints Export ... OK

Perform3D Materials

For material concrete f’c is taken from its property and maximum Fu is checked from stress strain curve. If maximum Fu is greater than f’c then maximum Fu will be used for f’c.

For steel and rebar materials fy, fu and effective fy and fu are taken from their properties.

6 - Perform3D Materials

     Total Inelastic Fiber Rebar Material = 1

     Total Inelastic Fiber Concrete Material = 6

     Total Inelastic Shear Concrete Material = 6

     Total Elastic Fiber Concrete Material = 6

     Total Elastic Fiber Steel Material = 1

     Total Elastic Shear Concrete Material = 6

     Total Elastic Shear Steel Material = 1

     Total Elastic Slab Concrete Material = 6

     Total Elastic Slab Steel Material = 1

     Material Export ... OK

Perform3D Cross Sections

7 - Perform3D Cross Sections

    Total Steel Beam Sections Exported = 0

    Total Concrete Beam Sections Exported = 53

    Total Embedded Beam Sections Exported = 67

    Total Steel Column Sections Exported = 0

    Total Concrete Column Sections Exported = 53

    Total Elastic Concrete Shear Wall Sections Exported = 13

    Total Elastic Concrete Shear Wall Sections Exported = 0

    Total General Shear Wall Sections Exported = 0

    Total Inelastic Concrete Shear Wall Sections Exported = 13

    Total Elastic Concrete Slab Sections Exported = 19

    Total Elastic Steel Slab Sections Exported = 0


    Cross-Sections Export ... OK

Perform3D Elastic Properties

8 - Perform3D Elastic Properties

     Total Releases Exported = 2


     Elastic-Properties Export ... OK

Perform3D Inelastic Properties

9 - Perform3D Inelastic Properties

     Total Inelastic FEMA Concrete Beams = 0

     Total Inelastic FEMA Steel Beams = 0

     Total Inelastic FEMA Concrete Columns = 0

     Total Inelastic FEMA Steel Columns = 53

     Inelastic-Properties Export ... OK

Perform3D Inelastic Hinge Properties

10 - Perform3D Inelastic Hinge Properties

       Total Frame Hinges = 582

       Inelastic Frame Hinges Export ... OK

       Total Wall Hinges = 427

       Inelastic Wall Hinges Export ... OK

Perform3D Compound Properties

11 - Perform3D Compound Properties

       Total Elastic Steel Beam Sections = 0

       Total FEMA Steel Beam Sections = 0

       Total Elastic Steel Column Sections = 0

       Total FEMA Steel Column Sections = 0

       Total Elastic Concrete Beam Sections = 0

       Total FEMA Concrete Beam Sections = 0

       Total Elastic Concrete Column Sections = 53

       Total FEMA Concrete Column Sections = 53

       Total Concrete Beam Hinges = 292

       Total Concrete Frame End Releases = 2030

       Total Embedded Beams = 67

       Total Compound Walls = 13

       Total Concrete Wall Hinges = 427

       Total Compound General Walls = 0

       Compound Properties Export ... OK

Perform3D Elastic Property Support Spring

12 - Perform3D Elastic Property Support Spring

       Total Elastic Property Support Springs = 0

       Elastic Property Support Springs Export ... OK

Perform3D Elements

13 - Perform3D Elements

       Total Concrete Columns = 1184

       Total Concrete Beams = 2302

       Total Concrete Braces = 9

       Total Steel Columns = 0

       Total Steel Beams = 0

       Total Steel Braces = 0

       Total Concrete EWalls = 1618

       Total Concrete Walls = 0

       Total Concrete GWalls = 0

       Total Steel Walls = 0

       Total Steel Slabs = 0

       Total Concrete Slabs = 2253

       Total Embedded Beams - 1 = 829

       Total Embedded Beams - 2 = 896

       Total Support Springs = 0

       Elements Export ... OK

Perform3D Mass

14 - Perform3D Mass

       Total Mass  X = 73.9947835654403kN/mm-s^2

       Total Mass  Y = 73.9947835654403kN/mm-s^2

       Total Mass  Z = 73.9947835654407kN/mm-s^2

       Total Mass RX = 74.674898969553kN/mm-s^2

       Total Mass RY = 74.674898969553kN/mm-s^2

       Total Mass RZ = 74.6748989695533kN/mm-s^2

       Mass Source Export ... OK     

In Perform 3D model mass is not applied to supports.    

Perform3D Self-Weight Load Patterns

15 - Perform3D Self-Weight Load Patterns

       Selfweight Pattern 'SelfWeight-DEAD'

           Total weight = 729021.79491532 kN

       Self-Weight Load Patterns Export ... OK

Perform3D Nodal Loads

16 - Perform3D Nodal Loads

   Load Pattern 'LLR' total loads

      Force 1 = 0 kN

      Force 2 = 0 kN

      Force 3 = -3065.82339173456 kN

      Moment 1 = 0 kN -N

      Moment 2 = 0 kN -N

      Moment 3 = 0 kN -N

   Load Pattern 'SDL' total loads

      Force 1 = 0 kN

      Force 2 = 0 kN

      Force 3 = -2844.40956961833 kN

      Moment 1 = 0 kN -N

      Moment 2 = 0 kN -N

      Moment 3 = 0 kN -N

   Load Pattern 'LLNR' total loads

      Force 1 = 0 kN

      Force 2 = 0 kN

      Force 3 = -1471.96535014929 kN

      Moment 1 = 0 kN -N

      Moment 2 = 0 kN -N

      Moment 3 = 0 kN -N

    Nodal Loads Export ... OK

Perform3D Element Loads

17 - Perform3D Element Loads

     Element Loads Export ... OK

Perform3D Frame

18 - Perform3D Frame Views

     Total Frame Views = 56

     Frame Views Export ... OK

    Total Frame Views = 56

    Frame Views Export ... OK

Perform3D Sections

19 - Perform3D Section Cuts

     Total Section Cuts = 52

     Section-Cuts Export ... OK

Perform3D Drifts

20 - Perform3D Drifts

     Total Drifts = 98

     Drifts Export ... OK

Perform3D Load Cases

21 - Perform3D Load Cases

     Total Gravity Load Cases = 12

     Total Earthquake Load Cases = 11

     Load Cases Export ... OK

Perform3D Model Saving

22 - Perform3D Model Saving

     Model Saved ... OK