We are designing a large warehouse type building with joist girder moment frames in both directions (however no columns are acting biaxially in frames). This is a large footprint building and thus lots of frames. We need to extract end moments (dead…

Hi all, I am working with an industrial structure with Pseudo flexible diaphragm. I observed an unusual displacement at couple of places in the diaphragm due to nodal loads (RAM generated nodal loads). I tried disconnecting that node from diaphragm…

Hello Bentley team member, When analyzing the an ram SS model in Ram frame, the program return an instability error and stopping the analysis. The ram model file is uploaded in the secure file upload. What should be change in the model to correct…

AISC 341-16 section D1-4a requires columns of intersecting frames to be designed considering yielding of frames in both directions simultaneously. Does RAM Frame take this into account? It would appear that the expected BRB forces applied to the column…

How can i see or find the local axis of concrete walls? I see wall forces but need to know major axis direction.

Hi, I am modeling a chevron brace, I would like to know if I need to split the brace the mid beam or can I model it as continuous. There is no diaphragm at mid beam. I wanted to know the correct way to model this? Below are the 2 snips. Please…

Hi, Based on NBCC 2015 4.1.8.11 4) single storey buildings with steel or wood deck as diaphragms can have a higher fundamental period compared to 4.1.8.11 3) as seen in the snap below. However, in the current RAM frame the Ta is only based on clause…

When analyzing a structure in RAM Frame, do the drift results calculated use the ultimate or the service wind load? Also in RAM Frame, do the seismic drift results calculated use an elastic analysis or is the design ratio calculated by multiplying by…

We have created a RAM model from an ISM export from Revit. After cleaning up a multitude of errors associated with the import, we got the model into RAM Frame to analyze for wind loading. When running the model under dead, live, and a user input wind…

Hello all, RAM Manager thinks I have a module open and prevents me from closing Manager. Also, it does not allow me to select a module to continue. This is what it looks like: Can someone help? What is going on? I have version 17.02.01.23 SES. I…

I'm getting some conflicting graphical information and output. I'm designing a special concentrically braced frame (SCBF) with wide flange beams and columns and HSS braces. The frame column webs are oriented in the plane of the frame and all beam and…

Hi, I have a RAM Structural model which is giving me instability error at node at the top of the column. I initially had them all as walls and ran into the instability at node error at the node generated by the program after meshing. Assuming that the…

When cutting sections through the diaphragm - it appears that only the resultants for load cases are reported, and not for the custom load combinations. Am I missing something, or is this functioning as anticipated? If so, I request the function be updated…

As shown in the image above, a project we have has steel beams connected to concrete columns. Based on geometry alone there should be a moment applied to the column during design in the Concrete module. Added to this, the red beam on the left has a gravity…

RAM Frame crashes after opening and reaching 50% during initialization. It was able to open perfectly fine at some point. I went back and added more surface and line loads. Now it crashes. What would be the fix for this? RAM Model 220825.rss Than…

Good morning, I have a little issue with RAM Frame/SS. When I close RAM Frame it starts glitching. A message pops up telling me that a module is open when is not the case. I cannot save my work, I cannot close the program, and even when I close it…

I am using RAM SS Advanced Analysis to design a 1-story Tilt-Up building with gabled roof using semirigid diaphragm. I am getting instabilities and I cannot make it to go away. I have tried many solutions offered throughout bentley website such as below…

I am modeling/analyzing Tilt Up Walls, in RAM structural systems and was wondering a few things: - How do you capture the parapet? I understand you can put wind loads in RAM frame for the parapet, but when designing, you can't design the parapet portion…

I am trying to analyze a multi story concrete building comprised of shearwall core and gravity columns. The analysis runs fine with Direct Solver - In Core. However, when i run the analysis with Sparse Solver In-Core i get an error stating Unstable Structure…

Greetings, I am having the usual Illegal Framing Configuration Issue error on a model I am working on. This time following the other responses to this issue are not helping due to the complexity of the slab edges on the levels. I have tried redrawing…

Hi In special moment frame design, does Ram SS check the column/beam moment ratio (AISC 341-16, Eq 3-1) Thanks

When cutting a semi-rigid diaphragm to find the diaphragm forces, which direction should be cut for X- and Y- load direction? i.e. Looking for diaphragm moment Y-direction to find chord forces, would a cut parallel to Y-axis near "mid-span" of diaphragm…

I have a concrete building with roof at different level acting as a rigid diaphragm. I am getting less building weight (7000kips) in RAM frame compared (10000 kips) to vertical reaction summary for dead load in RAM concrete analysis. II have hand calculated…

Is there an easier way to pull the column-line information for columns designated as "lateral" from RAM Frame? The Steel Column module only prints out gravity members.

Not sure how to reconcile this error, the column has already been assigned and deleting it and bringing it back in doesn't fix the issue either. any help appreciated