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table_2

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_2

Table 2 of EN 338:2016.

Classes:

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_2.SoftwoodStrengthClassTension

Bases: Enum

Enumeration for softwood strength classes based on tension tests.

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_2.Table2StrengthClassesSoftwoodTension dataclass 

Table2StrengthClassesSoftwoodTension(
    timber_class: SoftwoodStrengthClassTension,
)

Implementation of table 2 from EN 338:2016.

Strength classes for softwood based on tension 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_t_0_mean : MPA Mean characteristic value of modulus of elasticity in tension parallel to grain in N/mm² e_t_0_k : MPA 5-percentile characteristic value of modulus of elasticity in tension parallel to grain in N/mm² e_t_90_mean : MPA Mean characteristic value of modulus of elasticity in tension 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 timber class is provided

Examples:

>>> table = Table2StrengthClassesSoftwoodTension(SoftwoodStrengthClassTension.T14)
>>> table.f_t_0_k
14
>>> table.e_t_0_mean
11.0
>>> table.rho_mean
420

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_2.Table2StrengthClassesSoftwoodTension.e_t_0_k property 

e_t_0_k: MPA

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

Returns:

  • MPA –

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

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_2.Table2StrengthClassesSoftwoodTension.e_t_0_mean property 

e_t_0_mean: MPA

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

Returns:

  • MPA –

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

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_2.Table2StrengthClassesSoftwoodTension.e_t_90_mean property 

e_t_90_mean: MPA

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

Returns:

  • MPA –

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

codes.eurocode.en_338_2016.chapter_5_classification_of_structural_timber.table_2.Table2StrengthClassesSoftwoodTension.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_2.Table2StrengthClassesSoftwoodTension.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_2.Table2StrengthClassesSoftwoodTension.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_2.Table2StrengthClassesSoftwoodTension.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_2.Table2StrengthClassesSoftwoodTension.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_2.Table2StrengthClassesSoftwoodTension.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_2.Table2StrengthClassesSoftwoodTension.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_2.Table2StrengthClassesSoftwoodTension.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_2.Table2StrengthClassesSoftwoodTension.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