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table_3

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3

Table 3 of EN 338:2016.

Classes:

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.HardwoodStrengthClass

Bases: Enum

Enumeration for hardwood strength classes based on edgewise bending tests.

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending dataclass 

Table3StrengthClassesHardwoodBending(timber_class: HardwoodStrengthClass)

Implementation of table 3 from EN 338:2016.

Strength classes for hardwoods based on edgewise bending tests - strength, stiffness and density values.

Parameters:

Properties

f_m_k : MPA 5-percentile characteristic value of bending strength in N/mm² f_t_0_k : MPA 5-percentile characteristic value of tensile strength parallel to grain in N/mm² f_t_90_k : MPA 5-percentile characteristic value of tensile strength perpendicular to grain in N/mm² f_c_0_k : MPA 5-percentile characteristic value of compressive strength parallel to grain in N/mm² f_c_90_k : MPA 5-percentile characteristic value of compressive strength perpendicular to grain in N/mm² f_v_k : MPA 5-percentile characteristic value of shear strength in N/mm² e_m_0_mean : MPA Mean characteristic value of modulus of elasticity in bending parallel to grain in N/mm² e_m_0_k : MPA 5-percentile characteristic value of modulus of elasticity in bending parallel to grain in N/mm² e_m_90_mean : MPA Mean characteristic value of modulus of elasticity in bending perpendicular to grain in N/mm² g_mean : MPA Mean characteristic value of shear modulus in N/mm² rho_k : KG_M3 5-percentile characteristic value of density in kg/m³ rho_mean : KG_M3 Mean characteristic value of density in kg/m³

Raises:

  • ValueError –

    If an invalid hardwood class is provided

Examples:

>>> table = Table3StrengthClassesHardwoodBending(HardwoodStrengthClass.D40)
>>> table.f_m_k
40
>>> table.e_m_0_mean
13.0
>>> table.rho_mean
660

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.e_m_0_k property 

e_m_0_k: MPA

Get the 5-percentile characteristic value of modulus of elasticity in bending parallel to grain.

Returns:

  • MPA –

    The 5-percentile characteristic value of modulus of elasticity in bending parallel to grain in N/mm²

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.e_m_0_mean property 

e_m_0_mean: MPA

Get the mean characteristic value of modulus of elasticity in bending parallel to grain.

Returns:

  • MPA –

    The mean characteristic value of modulus of elasticity in bending parallel to grain in N/mm²

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.e_m_90_mean property 

e_m_90_mean: MPA

Get the mean characteristic value of modulus of elasticity in bending perpendicular to grain.

Returns:

  • MPA –

    The mean characteristic value of modulus of elasticity in bending perpendicular to grain in N/mm²

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.f_c_0_k property 

f_c_0_k: MPA

Get the 5-percentile characteristic value of compressive strength parallel to grain.

Returns:

  • MPA –

    The 5-percentile characteristic value of compressive strength parallel to grain in N/mm²

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.f_c_90_k property 

f_c_90_k: MPA

Get the 5-percentile characteristic value of compressive strength perpendicular to grain.

Returns:

  • MPA –

    The 5-percentile characteristic value of compressive strength perpendicular to grain in N/mm²

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.f_m_k property 

f_m_k: MPA

Get the 5-percentile characteristic value of bending strength.

Returns:

  • MPA –

    The 5-percentile characteristic value of bending strength in N/mm²

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.f_t_0_k property 

f_t_0_k: MPA

Get the 5-percentile characteristic value of tensile strength parallel to grain.

Returns:

  • MPA –

    The 5-percentile characteristic value of tensile strength parallel to grain in N/mm²

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.f_t_90_k property 

f_t_90_k: MPA

Get the 5-percentile characteristic value of tensile strength perpendicular to grain.

Returns:

  • MPA –

    The 5-percentile characteristic value of tensile strength perpendicular to grain in N/mm²

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.f_v_k property 

f_v_k: MPA

Get the 5-percentile characteristic value of shear strength.

Returns:

  • MPA –

    The 5-percentile characteristic value of shear strength in N/mm²

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.g_mean property 

g_mean: MPA

Get the mean characteristic value of shear modulus.

Returns:

  • MPA –

    The mean characteristic value of shear modulus in N/mm²

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.rho_k property 

rho_k: KG_M3

Get the 5-percentile characteristic value of density.

Returns:

  • KG_M3 –

    The 5-percentile characteristic value of density in kg/m³

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_3.Table3StrengthClassesHardwoodBending.rho_mean property 

rho_mean: KG_M3

Get the mean characteristic value of density.

Returns:

  • KG_M3 –

    The mean characteristic value of density in kg/m³