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Getting Started
Everything you need to know about getting up and running with the MASS software

Getting to Know MASS
An overview of the program and the beam, wall, and shear wall modules.

MASS Modules
Learn more about MASS modules.
MASS DOCUMENTATION
LATEST NEWS
Read the most recent updates, announcements, or articles covering more specific techncial topics which are linked to from the main software documentation
10
Jan
Deflection Check for Out-of-Plane Walls
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Posted by
Gurparam Kang
- 0 comments
When designing out-of-plane cantilever walls subjected to lateral loads, the MASS software can be used to check the wall’s deflection a...
11
Jun
Change Notification: Lambda Values for Beam Density and Shear
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Posted by
Brad Crumb
- 0 comments
Deviating from the CSA Standards to better reflect practical design
While the existing implementation for MASS Versions 3.0 ...
21
Apr
Bug Notification: Drift Values instead of Elastic Deflections used for Inelastic Rotational Demand
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Posted by
Brad Crumb
- 0 comments
The current MASS approach in Version 4.0 means that linear elastic deflections are over-corrected in a way that largely overestimates d...
19
Apr
Bug Notification: Seismic reinforcement spacings applied to all shear walls resisting an earthquake load
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Posted by
Brad Crumb
- 0 comments
While most seismic requirements are triggered by the application of an earthquake load, MASS is too stringent on it's reinforcement spa...
09
Mar
Notification: Seismic Shear Forces Amplification Change for Elements Above Critical Section
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Posted by
Brad Crumb
- 0 comments
The storey-by-storey design approach currently in MASS can excessively amplify shear forces beyond expected results
In cases...
08
Feb
Bug Notification: Non-Seismic Lateral Companion Loads Amplified for Seismic Effects
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Posted by
Brad Crumb
- 0 comments
Be aware of this for shear wall designs resisting lateral earth pressures
In cases where a bug or other issue is found in th...
12
Jan
Version 4.0 Feature Spotlight: Ductility Verification
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Posted by
Brad Crumb
- 0 comments
Moderately Ductile and Ductile shear walls can now be designed within MASS to satisfy the ductility verification (required by CSA S304-...
11
Jan
Version 4.0 Feature Spotlight: Simplified National Building Code Seismic Design
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Posted by
Brad Crumb
- 0 comments
Added to the 2015 National Building Code of Canada is a new design pathway that can be used for areas with very low seismic hazard leve...
11
Nov
Bug Notification: Out-of-Plane Shear Resistance checked only at location of maximum shear
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Posted by
Brad Crumb
- 1 comment
While not always calculated at the critical location of a wall, out-of-plane walls are typically governed by flexure.
In cas...

BEAMS

OUT-OF-PLANE WALLS

SHEAR WALLS

MULTI-STOREY SHEAR WALLS

SHEARLINE
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