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Atlas TubeAtlas TubeWhere you can use this: Atlas Tube HSS Connections Hub onlyStatus: Released
The HSS Connections Hub is Atlas Tube’s free platform for designing hollow structural section connections. It is powered by Calcs.com, so the calculators behave the same way as calculators elsewhere on the platform: live inputs, expandable calculations, code references on every line, and exportable reports. The Hub brings together three things.

Typical details

A library of fabrication-ready connection details in PDF, DWG and Revit (RVT) formats.

Connection calculators

Design and check HSS shear, moment, splice, truss, bracing, base plate and composite column connections to AISC 360-22.

Engineering support

Access to Atlas Tube’s HSS engineering team when a connection falls outside what the calculators cover.

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Video introduction

The full HSS Connections Hub playlist on the Zekelman Industries channel carries the walkthroughs, the webinars and the monthly Connection of the Month series. Individual videos are embedded in the articles they relate to.

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Who it is for

Structural engineers detailing HSS connections in the United States, working to AISC 360-22, the AISC Steel Construction Manual (16th edition) and the AISC Design Guides, mainly Design Guide 24 for HSS connections. Accounts are complimentary. Sign up at connectionshub.atlastube.com.

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What is covered

The calculator library spans the following families. Each has its own article.
New connections and feature updates are released roughly every two weeks, so this list grows. Articles marked Beta describe calculators that are released but still being validated.

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Where to start

Getting started

Create an account, set up a project, add your first calculation.

Anatomy of a calculation

How Key Properties, Summary, Bolt Inputs and Applied Loads fit together.

Exporting reports and details

PDF reports with your logo, plus DWG, Revit and PDF details.

Browse the calculators

Full reference for every connection calculator.

Getting Started

Which Platform Am I Using?

The HSS connection calculators run on two platforms. What is the same, what differs, and how to read the availability box on every page.

Anatomy of a Calculation

How Key Properties, Summary, Bolt Inputs, Applied Loads and the expandable calculations fit together in every Connections Hub sheet.

Calculators

General HSS Truss Connection (T, K, Y, X, KT)

Auto-classify and design HSS truss joints, including gapped and overlapped KT, to AISC 360-22 and Design Guide 24.

Column Bracing Connection: Double Gusset Configurations

Design internal and external double gusset brace connections, where the brace force is split between two gusset plates.

HSS Steel Base Plate

Design HSS column base plates for compression, uplift and brace loading, with anchor rod, concrete breakout and weld checks.

Working with Calculations

Exporting Reports and Typical Details

Export PDF calculation reports with your company logo, and download typical connection details in DWG, Revit and PDF.

HSS Availability

See how easily an HSS section can be sourced while you are still choosing it, in the member selector and next to the selected member.

Bulk Import Calculations from Excel

Create many connection calculations in one go by importing a filled-in Excel template.

Linking Column Bracing to Shear Connection Calculators

Pass member properties, design method and demands from Column Bracing and Cast Connex bracing sheets into HSS and WF shear connection calculators.