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Materials and Database
  1. Nordic Lam Material Properties

    The following changes have been made to Nordic Lam design properties based on Nordic’s APA PR-L294 Product Report

    1. 24F-ES/NPG Column Bending Strength Fb (Change 83)

      For 24F-ES/NPG columns, the allowable bending stress in tension Fb has changed to 2400 psi from 1950 psi.

    2. 13F-1.7E Joist Properties

      The following changes have been made for 13F-1.7E Joists

      1. Tension Face Perpendicular Compression Strength Fcp (Change 91)

        For 13F-1.7E joists, the allowable compression stress perpendicular to the grain on the tension face Fcp has changed to 450 psi from 600 psi.

      2. Compression Strength Fc (Change 92)

        For 13F-1.7E joists, the axial compression capacity Fc has been changed to to 450 psi, the value of compression perpendicular to the grain, from 1150 psi, a value typical of Nordic column materials.

        This value is used only for the calculation of bearing capacity of sloped joists from NDS 3.10.3, and this change was made in the interests of conservatism.

      3. Volume Factor Cv (Change 93)

        For the volume factor Cv for bending strength Fb of 13F-1.7E joists 1.5" or greater in width, the program uses 12/d1/9 rather than the one from NDS 5.3.6. For custom widths less than 1.5", the NDS volume factor is still used. The new volume factor is no longer limited to 1.0 as the NDS volume factor is.

    3. Cfu Factor (Change 94)

      In the flat-use factor Cfu = (12/d)1/9, the program now uses a depth d = 3" for all depths less than 3", as per Note 8 of Table 2, APA PR-L294,. This factor is used to modify the weak-axis bending strength Fby for all Nordic Lam materials.

  2. Unavailable Material Project File Crash (Bug 3357)

    Sizer would sometimes show two messages and then crash when it could not find the material database file when opening a saved project file. One reason this occurred was a mismatch between the material name listed in the initialization file and the one in the database file.

    Now, if a material is not found in the database, the program picks the first available material and species, shows just one message, and does not crash.

See Also

Sizer 11.2

Engineering Design

Loads and Analysis

Program Operation

Graphics

Output