Thermal Analysis of a Steel Section (I-Profile)#
This tutorial deals with a Thermal Analysis of a Steel Section I-profile. The geometry of the cross section is entered graphically via cross-section editor CSE in SOFiPLUS.
A basic SOFiSTiK knowledge is required for this tutorial. Inside this tutorial we show only the project specific workflows, which are different from the basic workflow.
Starting a new project
Define Cross Section via CSE
Define Fire Load via Thermal Analysis
This tutorial is based on Eurocode DIN EN 1993.
Step by Step Instructions#
Create a new SSD project based on DIN EN 1993
Create the required materials
Create a new solid cross section with task
Generate Cross Section inside SOFiPLUS with Cross Section Editor
Insert a standard rolled steel profile into the current section
For Fire Design you have to save the mesh in a subdirectory
Save the section
In SSD insert the task
Define fire curve, time, protection class, etc.
With OK you can start the thermal analysis
Starting a new project#
See chapter Start New Project in General Workflow description.
Generate all necessary materials listed above. Follow the procedures explained in chapter Material Definition in General Workflow description.
Defining cross sections#
The steel section will be defined graphically with the cross-section editor in SOFiPLUS(-X).
Cross Sections -> New Solid Section -> Composite or Steel
SOFiPLUS(-X) will open and you are asked to provide a name and define the material for the section:
To enable the section for thermal analysis, it is necessary to save the mesh in a subdirectory.
After setting up the cross section properties, insert a standard Rolled Steel Shapes profile into the current section.
Insertion point is (0.00, 0.00)
For I-profiles there are already predefined flammable edges (Z-,Z+,Y-…). For other steel profiles, these edges still need to be defined.
Defining fire load via thermal analysis#
In SSD insert the task Thermal Analysis. Then define the fire curve, time, protection class, etc.
With OK you can start the thermal analysis. The result of calculation is now available in the Report.
Since version 2020 it is now possible to check the graphical results (GRAPHIC) of the subsystem directly.