Overview - Example 1

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The first example is a two-story, two-bay concrete frame which is shown in the figure below.

 

Example1Model

 

 

The properties of the Model are the following:

 

Materials

The material of the Model is Concrete with the following properties:

Elastic Modulus E = 29 GPa

Density d = 2500 kg/m3

 

Sections

There are different sections for the Columns and Beams:

Columns: Square section, 50 cm * 50 cm

Beams: Rectangular section, 50 cm * 25 cm (bending in the major axis - 50 cm is the height of the beam (along the Global Y axis) and 25 cm is its width (perpendicular to the screen))

 

Member geometry (Nodes and Elements)

As shown in the Figure above, where the Grid is 1 m. So the height of each floor is 3 m and each bay has a span of 5 m. The total height of the structure is 6 m, while the total width is 10 m.

Elements' orientation is also shown in the figure (It is not very important to define the elements' orientation as shown above).

 

Nodal Loads

There is a FX=30 kN Load acting on Node 2 and also a FX=50 kN Load acting on Node 7, as shown in the figure above.

 

Elemental Loads

All the beams have a uniform elemental load of 10 kN/m at the direction -Y (Global axes), as shown in the figure.

 

Body (Acceleration) Loads

The self-weight of all the structural elements (columns and beams) has to be taken into consideration in the analysis.

The earth gravitational acceleration is given equal to g=9.81 m/s2 (a typical value).