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Chapter B - Design Requirements

B4. Member Properties

Classification of Sections for Local Buckling

AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case1 — Method
case1(b, t, E, F_y)

Classifies the section of a member subject to axial compression.

Description of applicable member: Flanges of rolled I-shaped sections, plates projecting from rolled I-shaped sections, outstanding legs of pairs of angles connected with continuous contact, flanges of channels, and flanges of tees.

Arguments

  • b: width of the plate or half the width of the flange.
  • t: thickness of the flange.
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • CompressionBucklingType enum whose value is either Nonslender or Slender

Reference

  • AISC Table B4.1a
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case10 — Method
case10(b, t, E, F_y)

Classifies the compressive elements of a member subject to flexural.

Description of applicable member: Flanges of rolled I-shaped sections, channels, and tees.

Arguments

  • b: width of the plate or half the width of the flange.
  • t: thickness of the flange.
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • FlexureBucklingType enum whose value is either Compact, Noncompact, or Slender

Reference

  • AISC Table B4.1b
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case11 — Method
case11(b, t, E, F_L, k_c)

Classifies the compressive elements of a member subject to flexural.

Description of applicable member: Flanges of built-up I-shaped sections (singly or doubly symmetric).

Arguments

  • b: width of the plate or half the width of the flange.
  • t: thickness of the flange.
  • E: elastic section modulous.
  • F_L: nominal compression flange stress above which the inelastic buckling limit states apply (ksi)
  • k_c:

Returns

  • FlexureBucklingType enum whose value is either Compact, Noncompact, or Slender

Reference

  • AISC Table B4.1b
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case12 — Method
case12(b, t, E, F_L, k_c)

Classifies the compressive elements of a member subject to flexural.

Description of applicable member: Flanges of built-up I-shaped sections (singly or doubly symmetric).

Arguments

  • b: width of the plate or half the width of the flange.
  • t: thickness of the flange.
  • E: elastic section modulous.
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • FlexureBucklingType enum whose value is either Compact, Noncompact, or Slender

Reference

  • AISC Table B4.1b
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case13 — Method
case13(b, t, E, F_y)

Classifies the compressive elements of a member subject to flexural.

Description of applicable member: Flanges of all I-shaped sections and channels bent about their minor axis.

Arguments

  • b: width of the plate or half the width of the flange.
  • t: thickness of the flange.
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • FlexureBucklingType enum whose value is either Compact, Noncompact, or Slender

Reference

  • AISC Table B4.1b
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case14 — Method
case14(d, t, E, F_y)

Classifies the compressive elements of a member subject to flexure.

Description of applicable member: Webs of doubly-symmetric I-shaped sections and channels.

Arguments

  • d: depth of the WT section
  • t_w: thickness of the web.
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • FlexureBucklingType enum whose value is either Compact, Noncompact, or Slender

Reference

  • AISC Table B4.1b
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case15 — Method
case15(b, t, E, F_y)

Classifies the compressive elements of a member subject to flexural.

Description of applicable member: Webs of doubly-symmetric I-shaped sections and channels.

Arguments

  • h:
    • For rolled sections: the clear distance between flanges less the fillet at each flange.
    • For built-up sections: clear distance between flanges when welds are used.
  • t_w: thickness of the web.
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • FlexureBucklingType enum whose value is either Compact, Noncompact, or Slender

Reference

  • AISC Table B4.1b
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case17 — Method
case17(b, t, E, F_y)

Classifies the compressive elements of a member subject to flexural.

Description of applicable member: Webs of doubly-symmetric I-shaped sections and channels.

Arguments

  • b: width of the flat wall of the flange HSS (inch)
  • t: thickness of the flange (inch)
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • FlexureBucklingType enum whose value is either Compact, Noncompact, or Slender

Reference

  • AISC Table B4.1b
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case19 — Method
case19(h, t, E, F_y)

Classifies the compressive elements of a member subject to flexural.

Description of applicable member: Webs of doubly-symmetric I-shaped sections and channels.

Arguments

  • h: height of the flat wall of the web HSS (inch)
  • t: thickness of the web (inch)
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • FlexureBucklingType enum whose value is either Compact, Noncompact, or Slender

Reference

  • AISC Table B4.1b
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case20 — Method
case20(D, t, E, F_y)

Classifies the compressive elements of a member subject to flexural.

Description of applicable member: Webs of doubly-symmetric I-shaped sections and channels.

Arguments

  • D: outer diameter of the round HSS (inch)
  • t: thickness of the wall (inch)
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • FlexureBucklingType enum whose value is either Compact, Noncompact, or Slender

Reference

  • AISC Table B4.1b
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case3 — Method
case3(b, t, E, F_y)

Classifies the section of a member subject to axial compression.

Description of applicable member: Legs of single angles, legs of double angles with separators, and all other unstiffened elements.

Arguments

  • b: length of the angle leg.
  • t: thickness of the flange.
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • CompressionBucklingType enum whose value is either Nonslender or Slender

Reference

  • AISC Table B4.1a
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case4 — Method
case4(d, t_w, E, F_y)

Classifies the section of a member subject to axial compression.

Description of applicable member: Flanges of rolled I-shaped sections, plates projecting from rolled I-shaped sections, outstanding legs of pairs of angles connected with continuous contact, flanges of channels, and flanges of tees.

Arguments

  • h: depth of WTShape.
  • t_w: thickness of the web.
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • CompressionBucklingType enum whose value is either Nonslender or Slender

Reference

  • AISC Table B4.1a
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case5 — Method
case5(h, t_w, E, F_y)

Classifies the section of a member subject to axial compression.

Description of applicable member: Flanges of rolled I-shaped sections, plates projecting from rolled I-shaped sections, outstanding legs of pairs of angles connected with continuous contact, flanges of channels, and flanges of tees.

Arguments

  • h:
    • For rolled sections: the clear distance between flanges less the fillet at each flange.
    • For built-up sections: clear distance between flanges when welds are used.
  • t_w: thickness of the web.
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • CompressionBucklingType enum whose value is either Nonslender or Slender

Reference

  • AISC Table B4.1a
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case6 — Method
case6(b, t, E, F_y)

Classifies the section of a member subject to axial compression.

Description of applicable member: Walls of rectangular HSS

Arguments

  • b: width of the flat wall.
  • t: thickness of the wall.
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • CompressionBucklingType enum whose value is either Nonslender or Slender

Reference

  • AISC Table B4.1a
source
AISCSteel.ChapterBDesignRequirements.B4.TableB4⬝1a.case9 — Method
case9(D, t, E, F_y)

Classifies the section of a member subject to axial compression.

Description of applicable member: Walls of round HSS

Arguments

  • D: outside diameter of round HSS or pipe
  • t: thickness of the wall.
  • E: elastic section modulous.
  • F_y: yield strength of steel.

Returns

  • CompressionBucklingType enum whose value is either Nonslender or Slender

Reference

  • AISC Table B4.1a
source