MASS User Documentation

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Ductility

Announcements

Version 4.0 Feature Spotlight: Ductility Verification

Moderately Ductile and Ductile shear walls can now be designed within MASS to satisfy the ductility verification (required by CSA S304-14) Any designers struggling with post-disaster strictures or the axial load limitations of conventional construction masonry will be happy to know that MASS Version 4.0 has the ability to perform Read more…

By Brad Crumb, 3 months3 months ago
Technical

Why ISN’T the Factored Shear Force Scaled up for a Seismic Design?

While you might not have expected it, MASS has it’s reasons for leaving your factored shear alone – even with earthquake loads applied   As covered in a series of posts available here, it is common for designs to be greatly affected by the additional considerations for seismic design. All Read more…

By Brad Crumb, 1 year11 months ago
Technical

Why is the Factored Shear Force Scaled up on a Shear Wall Design?

Explaining these clauses and how they are applied   Questions about the seismic effects on shear resistance? Click here for a separate post. This page covers the scaling up of seismic forces applied to the wall. You may have noticed after running a few designs in the newly released MASS Read more…

By Brad Crumb, 1 year6 months ago
Technical

Understanding the Minimum Boundary Element Length Limits on Strain

While not explicitly listed as a strain limit, the minimum boundary element size can have a large effect on how high maximum compressive strain can be increased.   As part of the process of addressing a shear wall design with inadequate ductility, MASS will increase the maximum compressive strain, εmu Read more…

By Brad Crumb, 1 year1 year ago
Recent Posts
  • Notification: Seismic Shear Forces Amplification Change for Elements Above Critical Section
  • Bug Notification: Non-Seismic Lateral Companion Loads Amplified for Seismic Effects
  • Version 4.0 Feature Spotlight: Ductility Verification
  • Version 4.0 Feature Spotlight: Simplified National Building Code Seismic Design
  • Bug Notification: Out-of-Plane Shear Resistance checked only at location of maximum shear
  • Known Bugs in MASS
  • MASS Version 4.0 is now available – adds multi-storey design and more earthquake design options
  • MASS Version 4.0 Release Notification
  • Version 4.0 Feature Spotlight: Online Activation Restored!
  • Why doesn’t MASS consider Type 6 Structural Irregularities?
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