Sawn Lumber Strengths and Resistances

This calculation provides the Moment capacity, Shear capacity, Compression capacity, Tension capacity, and Stiffness of Sawn Lumber Sections according to CSA O86.


Geometry:

Material:

Factors:

Output:

    Definitions
    • ϕ = Resistance factor
    • width, b = 38 mm
    • depth, d = 140 mm
    • Z-axis: horizontal axis parallel to "b"
    • Y-axis: Vertical axis parallel to "d"
    • Duration Factor, KD = 1
    • Service Factor, KSb = 1
    • Treatment Factor, KT = 1
    • System Factor, KH = b:1, v:1, c:1, t:1
    • Size Factor, KZ = b:1.4, v:1.4, t:1.3
    Look up the species parameters
    • S-P-F No.2 grade

      --> Table 6.4 - Structural joists and planks, structural light framing, and studs

      --> fb: 11.8MPa, fv: 1.5MPa, fc: 11.5MPa, fcp: 5.3MPa, ft: 5.5MPa, E: 9500MPa, E05: 6500MPa

    Moment Resistance
    Mrz=1.8 kNm Mry=0.5 kNm
    • mm3
    • mm3
    • MPa
    • kNm
    • kNm
    Shear Resistance
    Vr=6.7 kN
    • mm2
    • MPa
    • kN
    Compression Resistance
    Pr=29 kN
    • mm2
    • MPa
    • kN
    • kN
    • kN
    Tension Resistance
    Tr=34.2 kN
    • mm2
    • MPa
    • kN
    Stiffness
    • mm4
    • mm4
    • MPa
    • x109 N mm2
    • x109 N mm2
    User Notes: