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S-Frame 2026 Update - Errors and missing steel database
Hello, My 2025 S-frame was working but when I updated to 2026 I encountered several errors: I can't create new models. It gives me the following error and I can't proceed: When I open existing models, the steel database is missing from the sections tab and settings… Should I just revert back to 2025? Thank you, Kendrick
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Runtime Error 381 - S-FRAME, S-STEEL & ICD 2026.0 (Windows 10 and 11 64bit)
Description: I have installed the above S-Frame student edition software. However, when I try to click New 2D Model I get Runtime Error 381. I then need to use task manager to kill the application. I have tried reinstalling multiple times and various other methods. Product/Topic Name : S-FRAME, S-STEEL & ICD 2026.0…
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S-frame unexpected reaction forces
G'day all, Just looking for some assistance with the attached s-frame model. I am trying to assess a trailer chassis when raising a drilling mast. I have applied supports at ground level only. After running the analysis, for some reason I am getting reaction forces in the middle of the mast structure where there are no…
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Unable to create file due to "Run-time error '381': Invalid property array index"
Hi there, after finally fixing the HOST-ID issue I was receiving, I now have this run-time 381 error. I've uninstalled and reinstalled more than 10 times now. I've deleted the cnf file every time, and there is no inf file from what I can see on my end. Tried installing older versions, and I'm getting the same issue. If a…
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S-Frame Moment Z
I have analysed a simply supported truss in S-Frame, and in the reactions for the truss, I keep getting a very high value for Moment Z in the table of values. There is no sign of the moment in my graphical display of the reactions I am confident I have modelled the truss correctly, as the other results are what I would…
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license already activated using different HOSTID
Hey i tried to activate my key, i tried downloading 2026 s-frame and i kept getting the time error which couldn't resolve, downloaded 2025 got the same run time error 3 something and i couldn't resolve it. I deleted every file related to s-frame and some admin files now i downloaded 2026 and im getting this error.
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Roof-Level Retrofit Beam, Anchoring to Lower Floors, and Column Removal Modelling in S-FRAME
I am a BEng (Hons) Civil Engineering student conducting research on the structural robustness of existing buildings through roof-level retrofitting. Using S-FRAME, my work focuses on modelling a roof-level retrofit beam, its anchorage to the 1st and 2nd floors, and the simulation of a ground-floor column removal scenario.…
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S-Calc custom section .tbl export is unsupported, way to get around this?
Hello, running S-Frame 2023.1 and S-Calc 2023.1, i have made custom parametric sections in scalc, input their properties via custom database writer into custom database and able to apply the section from the new database to members in s-frame then code check in s-steel. However id like to be able to see the rendered…
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Instalation and activation problem
Hi Dear, We are using the S-Frame , V2026 student version in our Structural mechanics class. Some of the students got this error after installation and activation when they want to lunch the software. " Altair s frame for windows run time error 381 invalid property array index" Can you guide us?
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Existing license key not working on new laptop
I have a license key that I used on an old laptop that I no longer have. I tried activating my replacement laptop with the license key and it does not work. Also, I am able to login to the software I am looking to use (S-Frame), but when I try to create a file, there is a "run time error 381" message. I don't know if the…
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Releasing Moments from 2D Shell Element supported by Beam Element.
Hello, How do I release moments that are transferred from a 2D finite element shell onto a beam element supporting the shell elements (i.e. releasing the moment that is causing torsion on the beam)? Thank you, KC
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DXF import renderer not working
when i try to import DXF files from AutoCAD i keep getting this error, and cant view the model before importing it. How can i fix this?
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S-FRAME Suite 2026 Release Overview
S-FRAME suite v2026 is now available, and this version adds building codes, looking to improve the everyday workflow for its users. Keep reading this article so you can know all of these implementations! Structural Design 2 major implementations were added to this S-FRAME version, being the support for the South Korean KDS…
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Do not have access to old PC that has activated student license
I used my student license key on an old PC and have upgraded to a new one this year. I have tried to activate the software (S-Framev2026) on my current PC but cannot as it says it has been activated using different Host IDs. Is there a way to remotely deactivate the license on my older PC?
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S Frame Shell Analysis_Strip integration Lines
Hi. I am trying to model a basement walls which is supported on 3 side (2 sides by perpendicular walls and one side by the foundation and the slab on grade. I am getting the wall integration lines results and can go to S concrete directly by clicking concrete design. But when I am trying this with strip integration lines ,…
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Buckling Studies of a Short-Span Steel Girder Bridge Part 2
For Part 1, see here: https://community.altair.com/discussion/64350/buckling-studies-of-a-short-span-steel-girder-bridge-part-1 What Have We Learned: The Nonlinear Static analyses, an inherently more accurate analysis type than the P-Delta types, predicts that buckling will occur at approximately 5x of the “Dead + Self…
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Buckling Studies of a Short-Span Steel Girder Bridge Part 1
This document aims to introduce the various ways one can study buckling behavior in S-FRAME. We will examine this using a generic steel girder bridge structure, which has been deliberately altered to weaken it, hence allowing us to illustrate buckling behavior. The modifications from the original design include: Reduction…
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Why am I getting deflection that isn't possible?
I'm working with S-Frame and I have a dead load and a moving load for a bridge crane. See photos attached. The deflection I'm getting makes no sense. It's showing discontinuous deflection. See photos.
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Short Webinar - Tapered Section Modeling and Analysis using S-FRAME
Continuing with the Short Webinars initiative from the AEC Global Technical Team (GTT), on May 29th a new instance took place. This event, titled "Tapered Section Modeling and Analysis using S-FRAME," focused on a highly illustrative workflow that demonstrates how this feature can be used effectively. Starting from the…
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How to Use S-FRAME's Move Tool
In this video we walk through the various functions of S-FRAME's Move Tool. This includes translation of geometry, rotation, reflection/mirroring, scaling, sloping, and more. https://www.youtube.com/embed/PHdhY6YSlKU?si=RiiPq-Luwx91Fs58
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How to Use S-FRAME's Copy and Paste Command
In this video we will explore the helpful copy and paste command in S-FRAME which can be invaluable for replicating geometry throughout your model. https://youtu.be/I-G2hH4UAVw
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S-FRAME Suite 2025.1 Release Overview
S-FRAME suite v2025.1 has been released, and with this, some additions and enhancements aimed at improving the everyday workflow for its users. In the next paragraphs, you can find the main features. Concrete Design As part of the advances on including GFRP design within the S-FRAME suite, S-CONCRETE now supports…
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Short Webinar - Using S-CALC Section Properties for Your Structural Analysis and Design
As part of the AEC Global Technical Team (GTT) strategies for this year, it was decided to perform short webinars covering some topics that might not be extensive enough for a 1-hour discussion. April 24th was the starting date to perform these short webinars. Presenting the event called "Using S-CALC section properties…
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Join the Insightful Discussion on Efficient Steel Structures at ATCx AEC!
Altair will host our first global ATCx AEC, a one-day virtual event dedicated to transforming the architecture, engineering, and construction (AEC) sector on April 30, 2025. This engaging event will convene esteemed thought leaders and industry experts from around the world to delve into the trends, technologies, and…
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ATCx AEC 2025 is coming up on April 30, 2025. Register Now!
Altair will host our first global ATCx AEC, a one-day virtual event dedicated to transforming the architecture, engineering, and construction (AEC) sector. This dynamic event will bring together world renowned thought leaders and industry experts to explore the trends, technologies, and opportunities shaping the future of…
