How to Model Steel Frame Members

Frame members are a new generation of elements, independent of the axis, allowing for easy manipulation of definition points and offsets, providing great convenience in modeling.  Finite element method can be used to transfer loads to frame elements from slabs, and restraints and end-releases can be assigned at both ends. The desired load profile can be defined on frame elements utilizing ProtaStructure's interactive load editor. 

These members are automatically assigned to different drawing layers according to their types, and they are displayed in different colors in the model. Furthermore, in ProtaSteel, suitable connections and detail drawings can be created for these types.

Frame Groups

For steel floor and decking systems, "Frame Groups" have been developed to quickly insert secondary beams or parallel steel beams. With ProtaStructure, steel frames can be inserted in groups, and the properties of the inserted frames and their layout options can be changed from a single properties window. 

For further details of the modelling process, the video given below is recommended.

• Related Articles

• Steel Member Design

  Before the steel members can be designed, you have to model the steel members and perform the building analysis. Currently, ProtaStructure allows you to model and design for the following steel members: Steel Frame Steel Column Steel Brace Steel Girt ...

• Working with Steel Frame

  The “Frame Member” option enables users to model steel beams, composite beams, girts, purlins, braces and frame groups (to model multiple frames). This allows users flexibility to model steel structures anywhere in the model. Frame member sections ...

• Structural Modelling Overview

  Techniques for member creation and loading are described in this section. Also described here are those other modelling related functions contained on the “Member” pulldown. Additional modelling related topics can be found in the preceding Graphic ...

• Model Options

  Options to be used in analysis can be specified in “Model Options” page of “Building Analysis” form. “Model Options” comprises of four tab pages namely, Model, Shear Wall Model, Slab Model, and Settings. Any modifications made in this page can be ...

• Analytical Model

  Physical Model vs Analytical Model The 3D model you built is a physical model with actual member size rendered visually. The analysis converts the physical model into the analytical model (as shown below). The analytical model is essentially a ...