10 Jan Software, Software Tips, Technical Deflection Check for Out-of-Plane Walls January 30, 2023 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... Continue reading
11 Jun Bug Notification, Technical Change Notification: Lambda Values for Beam Density and Shear June 25, 2021 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 ... Continue reading
21 Apr Bug Notification, Technical Bug Notification: Drift Values instead of Elastic Deflections used for Inelastic Rotational Demand April 21, 2021 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... Continue reading
19 Apr Bug Notification, Technical Bug Notification: Seismic reinforcement spacings applied to all shear walls resisting an earthquake load August 11, 2021 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... Continue reading
09 Mar Bug Notification Notification: Seismic Shear Forces Amplification Change for Elements Above Critical Section June 17, 2021 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... Continue reading
08 Feb Bug Notification Bug Notification: Non-Seismic Lateral Companion Loads Amplified for Seismic Effects April 19, 2021 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... Continue reading
12 Jan Announcements, Software Tips Version 4.0 Feature Spotlight: Ductility Verification January 11, 2021 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-... Continue reading
11 Jan Announcements, Software Tips Version 4.0 Feature Spotlight: Simplified National Building Code Seismic Design February 9, 2021 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... Continue reading
11 Nov Bug Notification, Technical Bug Notification: Out-of-Plane Shear Resistance checked only at location of maximum shear January 13, 2021 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... Continue reading
07 Apr Technical Why is masonry shear resistance reduced for seismic effects in a shear wall design? May 12, 2020 Posted by Brad Crumb 0 comments When Shear Resistance is Reduced, Have No Fear! Seeing the masonry component of a shear wall's shear resistance is a part of everyday ... Continue reading
01 Apr Technical Bonus Post: What happens when you treat a Multi-Storey Design as an Element when Increasing Factored in-Plane Shear ? May 12, 2020 Posted by Brad Crumb 0 comments Does changing the analysis method effect the final results? The process shown here is how MASS internally performs the analy... Continue reading
01 Apr Technical Checking Vf,seismic for a Shear Wall Element May 12, 2020 Posted by Brad Crumb 0 comments Taking seismic effects into account in MASS can be confusing. Seeing factored shear forces scaled up by over 100% in some cases may see... Continue reading
01 Apr Technical Why is the Factored Shear Force Scaled Up for Seismic Considerations on a Shear Wall Design? April 23, 2021 Posted by Brad Crumb 1 comment Explaining these clauses and how they are applied Questions about the seismic effects on shear resistance? Click here for a ... Continue reading
01 Apr Technical Checking Vf,seismic for a Multi-Storey Shear Wall May 12, 2020 Posted by Brad Crumb 0 comments Taking seismic effects into account in MASS can be confusing. Seeing factored shear forces scaled up by over 100% in some cases may see... Continue reading