The ASD 14th Omega Factors setup window ( Job Settings )
Also see :
- Connection design method (set to ' ASD14 ' to open this window)
- Connection design (omega factors are applied during)
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To open this window :
1 . On the " Design Settings " window, select ' ASD14 ' as the " Connection design method ."
2 . Press the " ASD 14th Omega Factors " button.
3 . The ASD 14th Omega Factors window opens.
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Tension yielding in gross section ( D2 (a) ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section D2.(a), page 16.1-26, formula D2-1.
Tension fracture in net section ( D2 (b) ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section D2, page 16.1-26, formula D2-2.
---- Pin-connected members ----
Tensile rupture on the net effective area ( D5 (a) ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section D5, page 16.1-29, formula D5-1.
Shear rupture on the net effective area ( D5 (b) ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section D5, page 16.1-29, formula D5-2.
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---- Compression ----
General provisions ( E1 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section E1, page 16.1-31.
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---- Flexure ----
General provisions ( F1 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section F1, page 16.1-46.
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---- Shear ----
General provisions ( G1 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section G1, page 16.1-67.
For webs of rolled I-shaped members ( G2 (a) ): Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section G2(a), page 16.1-68.
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---- Double and singly symmetric members in flexure and compression ----
Compression ( H1.1 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section H1.1, page 16.1-74.
Flexure ( H1.1 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section H1.1, page 16.1-74.
---- Double and singly symmetric members in flexure and tension ----
Flexure ( H1.2 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section H1.2, page 16.1-75.
---- Unsymmetric and other members subject to flexure and axial force ----
Compression ( H2 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section H2, page 16.1-75.
Flexure ( H2 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section H2, page 16.1-77.
---- Torsion and combined torsion, flexure ----
Shear, and/or axial force ( H3.1 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section H3.1, page 16.1-77.
Strength of non-HSS members under torsion and combined stress ( H3.3 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Commentary H3.3, page 16.1-79.
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---- Axial strength ----
Encased composite columns :
Compressive strength ( I2.1b ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I2.1b, page 16.1-85.
Tensile strength ( I2.1c ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I2.1c, page 16.1-86.
Filled composite columns :
Tensile strength ( I2.2c ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I2.2c, page 16.1-88.
---- Flexure strength ----
Composite beams with steel headed stud and steel channel anchors :
Positive flexural strength ( I3.2a ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I3.2a, page 16.1-89.
Negative flexural strength ( I3.2b ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I3.2b, page 16.1-89.
Encased composite columns ( I3.3(a) and (b) ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I3.3.(a) and (b), page 16.1-91.
Filled composite columns ( I3.3 (c) ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I3.3.(c), page 16.1-92.
---- Shear strength ----
Reinforced concrete portion: Per AISC, the default omega factor (Ω) is 2.00 .
Steel section plus Reinforced steel: Per AISC, the default omega factor (Ω) is 2.00 .
---- Load transfer ----
Direct bearing of concrete ( I6.3a ): Per AISC, the default omega factor (Ω) is 2.31 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I8.3a, page 16.1-95.
Direct bond interaction in filled composite members ( I6.3c ): Per AISC, the default omega factor (Ω) is 3.33 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I6.3c, page 16.1-95.
---- Steel anchors ----
Shear strength of steel headed stud anchors ( I8.3a ): Per AISC, the default omega factor (Ω) is 2.31 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I8.3a, page 16.1-101.
Tensile strength of steel headed stud anchors ( I8.3b ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I8.3b, page 16.1-102.
Shear strength of steel channel anchors ( I8.3d ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section I8.3c, page 16.1-104.
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---- Partial-joint-penetration groove welds (Table J2.5) ----
Tension on base metal: Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table J2.5, page 16.1-114.
Tension on weld metal: Per AISC, the default omega factor (Ω) is 1.88 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table J2.5, page 16.1-114.
Compression on connections finished-to-bear, base metal: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table J2.5, page 16.1-114.
Compression on connections finished-to-bear, weld metal: Per AISC, the default omega factor (Ω) is 1.88 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table J2.5, page 16.1-114.
Compression on connections not finished-to-bear, base metal: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table J2.5, page 16.1-114.
Compression on connections not finished-to-bear, weld metal: Per AISC, the default omega factor (Ω) is 1.88 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table J2.5, page 16.1-114.
Shear on weld metal: Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table J2.5, page 16.1-114.
---- Fillet welds (Table J2.5) ----
Shear on weld metal: Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table J2.5, page 16.1-115.
---- Plug and slot welds (Table J2.5) ----
Shear on weld metal: Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table J2.5, page 16.1-115.
Fillet welds loaded in-plane ( J2.4 ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J2.4, page 16.1-115.
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Tension and shear strength of bolts ( J3.6 ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J3.6, page 16.1-125.
Combined tension and shear in bearing-type connections ( J3.7 ): Per AISC, the omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J3.7, page 16.1-125.
---- Slip resistance of high-strength bolts in slip-critical connections (J3.8) ----
Standard size and short-slotted holes perpendicular to the direction of the load: Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J3.8, page 16.1-126.
Oversized and short-slotted holes parallel to the direction of the load: Per AISC, the default omega factor (Ω) is 1.76 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J3.8, page 16.1-126.
Long-slotted holes: Per AISC, the default omega factor (Ω) is 2.14 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J3.8, page 16.1-126.
Bearing strength at bolt holes ( J3.10 ): Per AISC, the default omega factor (Ω) for the design bearing strength at bolt holes is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J3.10, page 16.1-127.
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---- Elements at connection ----
Tensile yielding ( J4.1 (a) ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J4.1(a), page 16.1-128.
Tensile rupture ( J4.1 (b) ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J4.1(b), page 16.1-129.
Shear yielding ( J4.2 (a) ): Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J4.2(a), page 16.1-129.
Tensile rupture ( J4.2 (b) ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J4.2(b), page 16.1-129.
Block shear strength ( J4.3 ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J4.3, page 16.1-129.
Strength in compression ( J4.4 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J4.4, page 16.1-113.
Bearing strength ( J7 ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J7, page 16.1-131.
Column bases and bearing on concrete ( J8 ): Per AISC, the default omega factor (Ω) is 2.31 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J8, page 16.1-132.
Anchor rods and embedments ( J9 ): Per AISC, the default omega factor (Ω) is 2.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J9, page 16.1-132.
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---- Elements at connection ----
Flange local bending ( J10.1 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J10.1, page 16.1-133.
Web local yielding ( J10.2 ): Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J10.2, page 16.1-134.
Web crippling ( J10.3 ): Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J10.3, page 16.1-134.
Web sidesway buckling ( J10.4 ): Per AISC, the default omega factor (Ω) is 1.76 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J10.1, page 16.1-135.
Web compression buckling ( J10.5 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J10.1, page 16.1-136.
Web panel zone shear ( J10.6 ): Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section J10.6, page 16.1-137.
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---- Plate-to-Round HSS connections (Table K1.1) ----
Transverse plate, HSS local yielding, plate axial load: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.1, page 16.1-142.
Transverse plate, HSS plastification, plate axial load: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.1, page 16.1-142.
Cap plate, local yielding of HSS axial load: Per AISC, the default omega factor (Ω) is 1.5 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.1, page 16.1-142.
---- Plate-to-Round HSS connections (Table K1.2) ----
Transverse plate, local yielding of plate: Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.2, page 16.1-143.
Transverse plate, HSS shear yielding (punching): Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.2, page 16.1-143.
Transverse plate, local yielding of HSS sidewalls: Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.2, page 16.1-143.
Transverse plate, local crippling of HSS sidewalls for T-connections: Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.2, page 16.1-143.
Transverse plate, local crippling of HSS sidewalls for cross-connections: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.2, page 16.1-143.
Longitudinal plate, plate axial load, HSS plastification: Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.2, page 16.1-144.
Longitudinal through plate, plate axial load, HSS wall plastification: Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.2, page 16.1-144.
Cap plate under axial load, local yielding of sidewalls: Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.2, page 16.1-145.
Cap plate under axial load, local crippling of sidewalls: Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K1.2, page 16.1-145.
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---- Round HSS (Table K2.1) ----
General check, shear yielding (punching): Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.1, page 16.1-148.
T- and Y-connections, chord plastification: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.1, page 16.1-148.
Cross connections, chord plastification: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.1, page 16.1-148.
K-connections with gap or overlap, chord plastification :
Compression: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.1, page 16.1-148.
Tension: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.1, page 16.1-148.
---- Rectangular HSS (Table K2.2) ----
T-, Y-, and cross connections :
Chord wall plastification: Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.2, page 16.1-150.
Shear yielding (punching): Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.2, page 16.1-150.
Local yielding of chord sidewalls: Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.2, page 16.1-150.
Local crippling of chord sidewalls for T- or Y-connections: Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.2, page 16.1-150.
Local crippling of chord sidewalls for cross-connections: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.2, page 16.1-150.
Local yielding of branch: Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.2, page 16.1-150.
Gapped K-connections :
Chord wall plastification: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.2, page 16.1-151.
Shear yielding (punching): Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.2, page 16.1-151.
Local yielding of branch: Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.2, page 16.1-151.
Overlapped K-connections :
Local yielding of branch: Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K2.2, page 16.1-152.
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---- Round HSS (Table K3.1) ----
Branch under in-plane bending, T- and cross-connections :
Chord plastification: Per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K3.1, page 16.1-155.
Shear yielding (punching): Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K3.1, page 16.1-155.
Branch under out-of-plane bending, T-, Y- and cross-connections :
Chord plastification: per AISC, the default omega factor (Ω) is 1.67 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K3.1, page 16.1-155.
Shear yielding (punching): Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K3.1, page 16.1-155.
---- Rectangular HSS (Table K3.2) ----
Branch under in-plane bending, T-, Y- and cross-connections :
Chord wall plastification: Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K3.2, page 16.1-157.
Sidewall local yielding: Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K3.2, page 16.1-157.
Local yielding of branch: Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section K3.3b.(c), page 16.1-157.
Branch under out-of-plane bending, T- and cross-connections :
Chord wall plastification: Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K3.2, page 16.1-157.
Sidewall local yielding: Per AISC, the default omega factor (Ω) is 1.50 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K3.2, page 16.1-157.
Local yielding of branch: Per AISC, the default omega factor (Ω) is 1.58 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Table K3.2, page 16.1-157.
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---- Rectangular HSS ( K4 ) ----
Fillet welds: Per AISC, the default omega factor (Ω) is 2.00 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section K4, page 16.1-159.
PJP groove welds: Per AISC, the default omega factor (Ω) is 1.88 . Refer to the AISC Steel Construction Manual , Fourteenth Edition, Section K4, page 16.1-159.
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---- Other factors ----
Flexural rupture strength of connection elements ( page 9-6 ): Per AISC, the default omega factor (Ω) is 2.00 .
Flexural strength of a coped beam ( page 9-7 ): Per AISC, the default omega factor (Ω) is 1.67 .
Flexural strength of an extended configuration shear tab ( page 10-105 ): Per AISC, the default omega factor (Ω) is 1.67 .
Shear strength of an extended configuration shear tab ( page 10-105 ): Per AISC, the default omega factor (Ω) is 1.50 .
Stabilizer plate strength to resist lateral displacement ( page 10-105 ): Per AISC, the default omega factor (Ω) is 1.67 .
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To close ASD 14th Omega Factors :
"OK" (or the Enter key) closes the ASD 14th Omega Factors window (this window).
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