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Tip
  • Design limit states of welded flange plate connections are calculated automatically according to AISC 360-16.

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Symbols

Ab: Non-threaded bolt web characteristic cross-sectional area
Ag: Gross area
An: Net cross-section area
Ae: Effective net cross-sectional area
Avg: Gross area under shear stress
Anv: Net area under shear stress
Ant: Net area under tensile stress
Aw: Cross-section web area
bbf = width of beam flange, in. (mm)
bp = width of end-plate, in. (mm)
d = depth of connecting beam, in. (mm)
g = horizontal distance between bolts, in. (mm)
dh: Bolt hole diameter
Fy: Structural steel characteristic yield strength
Fu: Structural steel characteristic tensile strength
Fyb: Bolt characteristic yield strength
Fub: Bolt characteristic tensile strength
nsp: Number of slip planes
s: Distance between bolt-holecentersK: Effective length factor
L: Connector distance
Lc: The clear distance between bolt holes
Le: The distance from the center of the bolt hole to the edge of the assembled element
Leh: The horizontal distance from the center of the bolt hole to the edge of the assembled element
Lev: The vertical distance from the center of the bolt hole to the edge of the assembled element
pb = vertical distance between the inner and outer row of bolts in an eight-bolt stiffened connection, in. (mm)
pfi = vertical distance from the inside of a beam tension flange to the nearest inside bolt rowtbf = thickness of beam flange, in. (mm)
tpfo = vertical distance from the outside of a beam tension flange to the nearest outside bolt row, in. (mm)
tbf = thickness of beam flangethickness of end-plate, in. (mm)
tp w = thickness of end-plateSize of weld leg, in. (mm)
Rn: Characteristic strength
Rnwl: Total nominal strength of longitudinally loaded fillet welds
Rnwt: Total nominal strength of transversely loaded fillet welds,

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Connection Geometry

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GEOMETRY CHECK

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L

760 mm

AISC 360-16 J2.4(c) 

Lwt

210 mm

 

Fe

490 N/mm2

 

Rnwl

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Bnwl%7D = min ( R_%7Bnw%7D , R_%7BnBM%7D ) L_%7Bwl%7D = 2352 \times 760 \times 10%5e%7B-3%7D =1787.52\; \mathrm%7BkN%7D $$

 

Rnwt

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Bnwt%7D = min ( R_%7Bnw%7D , R_%7BnBM%7D ) L_%7Bwt%7D = 2352 \times 210 \times 10%5e%7B-3%7D =493.92\; \mathrm%7BkN%7D $$

 

Rnw

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Bnw%7D = 0.6 F_E 0.707 w = 0.6 \times 490 \times 0.707 \times 11.315 =2352\; \mathrm%7BkN%7D $$

 

w

11.315 mm

 

Fu-plate

360 N/mm2

 

Fu-flange

360 N/mm2

 

tp

16 mm

 

tf

17.2 mm

 

RnBM

 

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7BnBM%7D = min ( 0.6 F_%7Bu-plate%7D \times t_p , 0.6F_%7Bu-flange%7D ) $$
Mathinline
body--uriencoded--$$ \normalsize R_%7BnBM%7D = (0.6 \times 360 \times 16; 0.6 \times 360 \times 17.2 ) = 3456\; \mathrm%7BkN%7D $$

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Bn%7D = max ( R_%7Bnwl%7D + R_%7Bnwt%7D , 0.85R_%7Bnwl%7D + 1.5R_%7Bnwt%7D ) = 2281.44\; \mathrm%7BkN%7D $$

 

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.75 \times 2281.44 = 1711.08 \; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

505.682 kN

1140.426 kN

0.296

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The limit state of tension plate yield is checked according to AISC 360-16.

Ag

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_%7Bg%7D = h_p t_p = 280 \times 16 = 4480 \; \mathrm%7Bmm%5e2%7D $$

 

Fy

275 N/mm2

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Bn%7D = F_y A_g = 275 \times 10%5e%7B-3%7D \times 4480 = 1232 \; \mathrm%7BkN%7D $$

AISC 360-16 (J4-1)

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.90 \times 1232 = 1108.8 \; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

505.682 kN

1108.8 kN

0.456

...

The limit state of the flange plate tension rupture is checked according to AISC 360-16.

An

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_%7Bg%7D = h_p t_p = 280 \times 16 = 4480 \; \mathrm%7Bmm%5e2%7D $$

 

Ae

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_%7Be%7D = A_%7Bn%7D U = 4480 \times 1.0 = 4480\; \mathrm%7Bmm%5e2%7D$$

 

Fu

410 N/mm2

 

U

1.00

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Bn%7D = F_%7Bu%7D A_%7Be%7D = 410 \times 10%5e%7B-3%7D \times 4480 = 1836.8 \; \mathrm%7BkN%7D $$

AISC 360-16 (J4-2)

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.75 \times 1836.8 = 1377.6 \; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

505.682 kN

1377.6 kN

0.367

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The block shear limit state is checked according to AISC 360-16.

Ag

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_%7Bg%7D = 2 \times 16 \times(400 - 20) = 12160 \; \mathrm%7Bmm%5e2%7D $$

 

Anv

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_%7Bnv%7D = 12160 - 0 = 12160 \; \mathrm%7Bmm%5e2%7D $$

 

Ant

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_%7Bnt%7D = 210 \times 16 = 3360 \; \mathrm%7Bmm%5e2%7D $$

 

Fy

275 N/mm2

 

Fu

410 N/mm2

 

Ubs

1.0

 

 

Image Removed

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize U_%7Bbs%7D F_u A_%7Bnt%7D = 1 \times 410 \times 10%5e%7B-3%7D \times 3360 = 1377.6 $$

Mathinline
body--uriencoded--$$ \normalsize 0.6 F_%7Bu%7D A_%7Bnv%7D = 0.6 \times 410 \times 10%5e%7B-3%7D \times 12160 = 2991.36 $$

Mathinline
body--uriencoded--$$ \normalsize 0.6 F_%7By%7D A_%7Bg%7D = 0.6 \times 275 \times 10%5e%7B-3%7D \times 12160 = 2006.4 $$

 

Rn

Mathinline
body--uriencoded--\begin%7Baligned%7D \normalsize R_n = \mathrm%7Bmin%7D \left[\begin%7Bmatrix%7D 0.6F_uA_%7Bnv%7D \\0.6F_yA_%7Bg%7D \end%7Bmatrix%7D\right] \end%7Baligned%7D + U_%7Bbs%7DF_uA_%7Bnt%7D

Mathinline
body--uriencoded--\normalsize R_%7Bn%7D =2006.4 + 1377.6 = 3384\; \mathrm%7BkN%7D

AISC 360-16 (J4-5)

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.75 \times 3384 = 2538 \; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

505.682 kN

2538 kN

0.199

...

The limit state of compression plate yield is checked according to AISC 360-16.

K

0.65

 

L

20 mm

 

r

4.619 mm

 

KL / r

2.81

 

Fy

275 N/mm2

 

Ag

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_%7Bg%7D = h_p t_p = 280 \times 16 = 4480 \; \mathrm%7Bmm%5e2%7D $$

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Bn%7D = F_%7By%7D A_%7Bg%7D = 275 \times 10%5e%7B-3%7D \times 4480 = 1232 \; \mathrm%7BkN%7D $$

AISC 360-16 (J4-6)

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.90 \times 1232 = 1108.8 \; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

505.682 kN

1108.8 kN

0.456

...

The nominal and design strength of the weld is checked according to AISC 360-16

w

11.315 mm

FE

490 N/mm2

l

260 mm

e

117.5 mm

Rn

Image Removed

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_n = \dfrac%7B w l F_E %7D%7B\sqrt %7B2.25 + 12 \left ( \dfrac%7Be%7D%7Bl%7D \right )%5e2 %7D %7D = \dfrac%7B 11.315 \times 260 \times 490 \times 10%5e%7B-3%7D %7D%7B\sqrt %7B2.25 + 12 \left ( \dfrac%7B117.5%7D%7B260%7D \right )%5e2 %7D %7D =664.86 \; \mathrm%7BkN%7D $$

ΦRn

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.75 \times 664.86 = 498.65 \; \mathrm%7BkN%7D $$

Required

Available

Ratio

Control

135.975 kN

498.69 kN

0.273

...

The nominal and design strength of the weld is checked according to AISC 360-16

Fe

490000 kN490 N/mmm2

w

11.315 mm

Fu

360  N/mm2

t

11.1 mm

Rnw

Image Removed

RnBM

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Bnw%7D = 0.6 F_E 0.707 w $$
Mathinline
body--uriencoded--$$ \normalsize R_%7Bnw%7D = 0.6 \times 490 \times 0.707 \times 11.315 \times 10%5e%7B-3%7D =2351.79 \; \mathrm%7BkN%7D $$

RnBM

Mathinline
body--uriencoded--$$ \normalsize R_%7BnBM%7D = 0.6 F_u t = 0.6 \times 360 \times 11.1 =2397.6\; \mathrm%7BkN%7D $$

AISC Manual 14th 8-12

Rn

Image Removed

Rn

Mathinline
body--uriencoded--$$ \normalsize R_%7Bn%7D = min ( R_%7Bnw%7D , R_%7BnBM%7D ) =2351.79\; \mathrm%7BkN%7D $$

ΦRn

 

 

Mathinline

Image Removed

body--uriencoded--$$ \normalsize \varphi R_n = 0.75 \times 2351.79 = 1764 \; \mathrm%7BkN%7D$$

Required

Available

Ratio

Control

579.254 kN/m

1764 kN/m

0.328

...

The nominal and design yield strength of the web plate is checked according to AISC 360-16

Ag

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_%7Bg%7D = L_p t_p = (260 \times 10) = 2600 \; \mathrm%7Bmm%5e2%7D $$

 

Fy

275 N/mm2

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Bn%7D = 0.6 F_y A_g = 0.6 \times 275 \times 10%5e%7B-3%7D \times 2600 =429\; \mathrm%7BkN%7D $$

AISC 360-16 J4-3

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 1 \times 429 = 429 \; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

135.975 kN

429 kN

0.317

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The limit state of the web plate shear rupture is checked according to AISC 360-16.

Anv

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_%7Bnv%7D = t_p (d_b - n_b d_e) = 10 \times ( 260 - 2 \times 29 ) =2020 \; \mathrm%7Bmm%5e2%7D $$

 

Fu

410 N/mm2

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Bn%7D = 0.6 F_u A_%7Bnv%7D = 0.6 \times 410 \times 10%5e%7B-3%7D \times 2020 =496.92 \; \mathrm%7BkN%7D $$

AISC 360-16 J4-3

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.75 \times 496.92 = 372.69 \; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

135.975 kN

372.69 kN

0.365

...

The limit state of the web plate shear yield is checked according to AISC 360-16.

dp

260 mm

Fy

275 N/mm2

tp

10 mm

a

117.5 mm

Rn

Image Removed

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_n = \dfrac%7B F_y d_p t_p %7D%7B\sqrt %7B2.25 + 16 \left ( \dfrac%7Ba%7D%7Bd_p%7D \right )%5e2 %7D %7D = \dfrac%7B 275 \times 10%5e%7B-3%7D \times 260 \times 10 %7D%7B\sqrt %7B2.25 + 16 \left ( \dfrac%7B117.5%7D%7B260%7D \right )%5e2 %7D %7D =304.387 \; \mathrm%7BkN%7D $$

ΦRn

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.90 \times 304.387 = 273.948 \; \mathrm%7BkN%7D $$

Required

Available

Ratio

Control

135.975 kN

273.948 kN

0.496

Column Panel Zone Shear

The welded flange plate connection's panel zone shear limit statefor the bolted flange plate connection is checked according to AISC 360-16.

Pr

1621.397 kN

AISC 360-16 J10-9

Py

Image Removed

Mathinline
body--uriencoded--$$ \normalsize P_%7By%7D = F_y A_g = 275 \times 10%5e%7B-3%7D \times28634.759 = 7874.559 \; \mathrm%7BkN%7D $$

 

Fy

275000 kN/m2

 

Ag

28634.759 mm2

 

dc

650 mm

 

tw

16 mm

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_n = 0.6F_%7By%7D d_c t_w = 0.6 \times 275 \times 10%5e%7B-3%7D \times 650 \times 16 = 1716 \; \mathrm%7BkN%7D $$

 

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.90 \times 1716 = 1544.4 \; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

56.746 kN

1544.4 kN

0.037

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