Versions

INTRODUCTION

Welcome to Modulo Software and Jabacus.

Following is a description of each calculator's version and respective updates.
Note that previous versions of these calculators have been released and have been continuously updated. These version numbers may not shown here. This list only details changes made once this list was made public.

Loads(NBCC 2015)

Roof Snow Load
  • V1.0.0 Full Release of 2015 Snow Load calculator.
  • V1.0.1 Added note for Prince George Bylaw No. 8922, 2018.
Roof Drift Load (Step)
    V1.0.0 Full Release of 2015 Snow Load calculator.
  • V1.0.1 Fixed so that both Ca0 and Cb were considered when determining governing case. Added note for Prince George Bylaw No. 8922, 2018.
Snow drift loading (Adjacent to Roof Obstructions)
    V1.0.0 Full Release of 2015 Snow Load calculator.
  • V1.0.1 Added explanatory note explaining why Ca(0)=1.0 at times and cannot go below 1.0.
  • V1.0.2 Added note for Prince George Bylaw No. 8922, 2018.
Specified Wind Load (Figure 4.1.7.6.-A)
    V1.0.0 Full Release of 2015 Wind Load calculator.
  • V1.0.0 Added note stating that calculator does not apply to building greater than 20 m tall.
Specified Wind Load (Figure 4.1.7.6.-B)
    V1.0.0 Full Release of 2015 Wind Load calculator.
Specified Wind Load (Figure I-12) Free-Standing Plates, Walls, and Billboards
    V1.0.0 Full Release of 2015 Wind Load calculator.
  • V1.0.1 Minor Updates. Fixed importance factor.
Earthquake Load (Equivalent Static Method)
    V1.0.0 Full Release of 2015 Earthquake Load calculator.
Earthquake Load (Element of Structure, Non-structural Component and Equip.)
    V1.0.0 Full Release of 2015 Seismic Component calculator.

Loads(NBCC 2010)

Roof Snow Load
  • V1.0.0 Full Release of 2010 Snow Load calculator.
Roof Drift Load (Step)
    V1.0.0 Full Release of 2010 Snow Load calculator.
  • V1.0.1 Updated F so that when square root was zero it used just the Cb portion of the formula instead of NAN.
Snow drift loading (Adjacent to Roof Obstructions)
    V1.0.0 Full Release of 2010 Snow Load calculator.
  • V1.0.1 Added explanatory note explaining why Ca(0)=1.0 at times and cannot go below 1.0.
Specified Wind Load (Figure I-7)
    V1.0.0 Full Release of 2010 Wind Load calculator.
Specified Wind Load (Figure I-8)
    V1.0.0 Full Release of 2010 Wind Load calculator.
Specified Wind Load (Figure I-24) Free-Standing Plates, Walls, and Billboards
    V1.0.0 Full Release of 2010 Wind Load calculator.
  • V1.0.1 Minor Updates. Fixed importance factor.
Earthquake Load (Equivalent Static Method)
    V1.0.0 Full Release of 2010 Earthquake Load calculator.
Earthquake Load (Element of Structure, Non-structural Component and Equip.)
    V1.0.0 Full Release of 2010 Seismic Component calculator.

Loads(NBCC 2005)

Roof Snow Load
  • V1.0.0 Full Release of 2005 Snow Load calculator.
Roof Drift Load (Step)
    V1.0.0 Full Release of 2005 Snow Load calculator.
  • V1.0.1 Fixed F so that it does not result in NAN.
Snow drift loading (Adjacent to Roof Obstructions)
    V1.0.0 Full Release of 2005 Snow Load calculator.
Specified Wind Load (Figure I-7)
    V1.0.0 Full Release of 2005 Wind Load calculator.
Specified Wind Load (Figure I-8)
    V1.0.0 Full Release of 2005 Wind Load calculator.
Specified Wind Load (Figure I-23) Free-Standing Plates, Walls, and Billboards
    V1.0.0 Full Release of 2005 Wind Load calculator.
Earthquake Load (Equivalent Static Method)
    V1.0.0 Full Release of 2005 Earthquake Load calculator.
Earthquake Load (Element of Structure, Non-structural Component and Equip.)
    V1.0.0 Full Release of 2005 Seismic Component calculator.

Materials

Steel

Steel Sections
    V1.0.0 Full Release of calculator.
Steel Column (Axial compression)
    V1.0.0 Full Release of calculator.
  • V1.0.1 Fixed minor solver issue. For certain cases, it would find an incorrect column.
Steel Section (Web Crippling - Webb Stiffener)
    V1.0.0 Full Release of calculator.
Steel Column Base Plate
    0.0.3 Correct the printed equation for n to reflect b instead of d and removed the round sections since cantilever does not apply correctly to round.
  • V1.0.0 Full Release of calculator.
Weld Connection
    V0.0.1 Beta Release of calculator.
  • V1.0.0 Full Release of calculator.

Timber CSA O86-14

Timber Sections
    V1.0.0 Full Release of calculator.
  • V1.0.1 Fixed Kc_x so that Pr did not = NAN when Fire-retartdent treated selected.
Structural Panel (Plywood & OSB)
    V1.0.0 Full Release of calculator.
  • V1.0.1 Minor Fixes (Vrp result fixes, tp value displays correctly, etc.)
  • V1.0.2 Coming Soon! Layout improvements, added functionality
Timber Bolted Connection
    V1.0.0 Full Release of calculator.
  • V1.0.1 Fixed min PrQr and Nr check.
  • V1.0.2 Expanded results output so easier to follow procedure.
  • V1.0.3 Fixed area for tension calcs which was not always totally accurate depending on the angles of the various members. Formulated procedure to approximate number of bolts (and resultant area for tension calcs) when at any angle.
Timber Lag Screw Connection (Withdrawal Resistance)
    V1.0.0 Full Release of calculator.
  • V1.0.1 Minor Updates.
Timber Lag Screw Connection (Lateral Resistance)
    V1.0.0 Full Release of calculator.
  • V1.0.1 Minor Updates.
Timber Nailed Connection
    V0.0.1 Beta Release of calculator.
  • V1.0.0 Full Release of calculator.

Timber CSA O86-01

Timber Sections
    V1.0.0 Full Release of calculator.
Timber Bolted Connection
    V1.0.0 Full Release of calculator.
Timber Lag Screw Connection (Withdrawal Resistance)
    V1.0.0 Full Release of calculator.

Concrete

Reinforced Concrete Bending
    V1.0.0 Full Release of Reinforced Concrete Bending calculator.
Reinforced Concrete Shear
    V1.0.0 Full Release of Reinforced Concrete Shea calculator.
2-Way Shear
    V1.0.0 Full release of short column calculator.
  • V1.0.1 Minor updates. Increased solver speed. Limited number of digits when solving for unknown. Removed ability to solve for λ.
Short Columns
    V1.0.0 Full release of short column calculator.

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