Current Revision posted to Structural Analysis Wiki by Seth Guthrie on 2/11/2016 12:47:15 AM
Product(s): | RAM Structural System | ||
Version(s): | Any | ||
Environment: | N/A | ||
Area: | Modeling | ||
Original Author: | Bentley Technical Support Group |
How can I model a 2D frame in Ram Structural System?
Ram Structural System models are typically full 3D buildings, but it is possible to model a 2D frame following these steps.
- Define at least one layout type to model the beams. If the frame is multi-story but the beams are the same length on all levels, then a single layout type will suffice.
- Model a grid system with grids, typically in the X direction, at each column line. There also needs to be one Y grid. (Tip - the Modeler tends to zoom to the limits of the grid system, so use the manual grid extents control to extend the grids a few feet from the origin so that the default view is not zoomed in too closely)
- Add lateral columns and beams on grid.
- Define the story data.
- In the elevation view:
- Model any braces that are needed
- Assign the desired member end fixity. The column bases should be fixed against out of plane rotation
- Add nodal load cases and nodal loads.
- Foundations can also be modeled if desired.
A sample model is available here:
See Also
RAM Frame Criteria - Diaphragms
Tags: frame, RAM Structural System, Modeling, 2D