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, I am running a 7-story steel framed building with flexible diaphragms for all floors. I get the following instability.: I assume I should not run P-Delta with flexible diaphragms so when I turn off P-Delta under Criteria -> General, the instability…

The "Steel Beam Design" module of RAM Structural Systems (CONNECT Edition v17.04.184 SES) keeps crashing as I use the "View/Update Beam" tool on members. Does anyone know how to resolve / avoid this? This issue takes this form: I open the RAM Beam…

Hello, I have a few concrete columns modeled in Ram SS that are failing due to high moments. I don't understand why they are seeing moment at all if they are pinned at the top and at the bottom. The structure in formed by concrete columns taking gravity…

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

I am running the seismic analysis for a 3 story structure and have questions about how to determine the appropriate building period to use for the seismic analysis. Gravity system is typical steel frame, with composite slab/framing at 2nd and 3rd Floors…

Hi everyone, I am trying to export the analytical model from revit to RAM SS. I have the following softwares with versions indicated: 1) RAM Structural System v17.00.01 2) Revit 2021 21.0.0.383 3) ISM Revit Link x64 11.02.01.007 4) Structural…

Hi, I'm building a new RAM SS model and looking at sizing columns in RAM Concrete Column. In 'Edit bar patterns' the bars are prefixed with #, eg #3, #4, #5..., they should be H10, H12 etc. I presume this is pre-set / dictated by the code. I had this…

I have a 2 story building where the lower portion of the floor plan must cantilever out due to existing conditions. I modeled the cantilever using a combination of gravity extensions and stubs as shown in the floor plans. When I run RAM SS and go through…

I am trying to analyze a building with CMU and CFMF shear walls. The diaphragm is a metal deck with 3" of concrete supported by CFMF floor trusses. I understand that RAM SS does not design CMU and CFMF shear walls but is there a way I could at least get…

I am modeling a building with bottom two levels concrete, and 4 levels of wood above that. I am modeling the wood floors as 'other' type members as a test to get forces from, rather than hand calcs. Problem is when I go from the top concrete floor up…

Trying to apply nodal loads to a frame that is skewed and it seems the options are limited to X and Y only. Applying with X and Y components at frame end did not produce expected results.

Hello Everyone For a while, I was using an Advanced Concrete Design (RCDC) for the design of a solid slab. Today I tried to learn the RAM concept for the slab designs but I saw a design of strips that had never seen before (When I was using RCDC and…

Hi everyone, For one of the gravity beams in our project, I saw that the controlling moment does not match either the pre-composite or the post-composite moment (both demand and capacity are different). I am trying to understand why this would be happening…

Hi, In RAM Steel Column, when I turn off the Skip-load the Live Load around column, it still shows skip load case as a controlling axial load in the report.

I am trying to bring a model from RAM into Revit using ISM, however whenever trying to create a repository it gets stuck on the first step and stays at 0%. I let it run all night and this morning it was still at 0%. Is there a way to get this to run?

While analyzing the cantilever deflections, RAM SS does pattern loading for the cantilever only and the back span only, to check the worst effect. Is there a way to understand the deflection when the live load is on both the cantilever as well as back…

Does RAM SS check the compactness of sections for steel gravity design (beams & columns) ? That is compact/ non-compact/ slender member per Chapter B (AISC 340 SCM). Chap G & F also uses some equations to correct the capacities ( based on flexure or compression…

Hey, Does RAM check gravity columns for deformation compatibility for seismic design categories D through F per ASCE 7-10 12.12.5 ? Also, I read something about ASCE 7 Stability coefficients from RAM 15 release notes ( pic below) what is this about?

For whatever reason the commands to get unbraced beam lengths are returning 0 for any beam I try. Any advice? I'm trying to print values from IBeam.dUnbracedLengthAxialLX, IBeam.dUnbracedLengthAxialLY, etc.Is there something I'm missing that must be…

I saw this note below in the RAM 17.00 Release Notes, could you please let me know what is this about? Is this feature in RAM SS? Defaults Utility STEEL COLUMN SCHEDULE LAYER: The values specified for Misc Symbols Color No and for Layer Name were…

We are following ASCE 7, AISC 360, and the Direct Analysis Method in the RAM Structural System to analyze a building with direct analysis method. In step 6, it mentioned "As stated previously, it is generally felt that the building period used in…

Is there a report which would give me the column size, grid label, and foundation loads? The foundation loads report is correlated with column number, and the column design/size report is correlated with grid/location. This makes it really difficult…

I have an issue where I have a concrete column that is shown as failing due to kl/r>100. The code reference for this error is given as 10.13.5. The problem with this is that I'm using ACI318-11, and that is an invalid code reference. In 318-11, 10.13…

I'm modeling with RAM Structural System v14.06. I know that it is possible to have a column supported by a diaphragm. Is it possible to have a wall supported by a diaphragm and transferred through the (thick) slab to an offset wall below?