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Tip
  • Joining plate connection limit states and geometry checks are done 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
d: Characteristic diameter of the stem of the bolt (the diameter of the non-threaded stem of the bolt)
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
s: Distance between bolt-holecenters
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
tp: Plate thickness
Pt: Bolt tensile strength
Rn: Characteristic strength
w: Size of weld leg, in. (mm)

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Connection Geometry

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GEOMETRY CHECKS

Horizontal Edge Distance

The distance from the center of the hole to the edge of the connected part in the horizontal direction is checked per AISC 360-16.

Leh ≥ Le-min     

AISC 360-16 J3.4

 

 

Leh

55 mm

Leh ≥ 2d = 2 * 24 = 48 mm conformity check for application

Le- min

30 mm

Minimum distance check according to Table J3.4

Vertical Edge Distance

The distance from the center of the hole to the edge of the connected part in the vertical direction is checked per AISC 360-16.

Lev ≥ Le-min     

AISC 360-16 J3.4

 

 

Lev

51.519 mm

L eh ≥ 2d = 2 * 24 = 48 mm conformity check for application

Le-min

32 mm

Minimum distance check according to Table J3.4

...

Weld Size

The minimum size of fillet welds is checked according to AISC 360-16 Table J2.4

w ≥ wmin     

AISC 360-16 J2.4

 

 

w

8.487 mm

 

wmin

5 mm

Table J2.4

STRENGTH CHECKS

Bolt Tension at Support

Bolt tensile strength is checked due to axial force and bending moment interaction effect.

Ft

750000 kN/m2

 

Ab

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_b = \dfrac%7B \pi d%5e2%7D %7B4%7D = \dfrac%7B \pi 24%5e2%7D %7B4%7D = 452.389 \; \mathrm%7Bmm%5e2%7D $$

AISC DG-4-2nd

3.7

Pt

Image Removed

Mathinline
body--uriencoded--$$ \normalsize P_t = F_%7Bt%7DA_b = 750 \times 10%5e%7B-3%7D \times 452.389 = 339.292 $$

 

h0

473.038 mm

 

h1

315.271 mm

 

dm

394.154 mm

 

Mreq

119.655 kNm

 

Nreq

-27.504 kN

 

Rreq

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Breq%7D = \dfrac%7B M_%7Breq%7D %7D%7Bd_m%7D + \dfrac%7B N_%7Breq%7D %7D%7B2%7D = \dfrac%7B 119.655 %7D%7B394.154 \times 10%5e%7B-3%7D %7D + \dfrac%7B -27.504 %7D%7B2%7D = 289.822 \; \mathrm%7BkN%7D $$

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_n = \dfrac%7B 2 P_t ( h_o + h_1 ) %7D%7B d_m %7D $$

Mathinline
body--uriencoded--$$ \normalsize R_n = \dfrac%7B 2 \times 339.292 \times (473.038 + 315.271 ) %7D%7B 394.154 %7D =1357.17 \; \mathrm%7BkN%7D $$

 

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.75 \times 1357.17 = 1017.876\; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

289.822 kN

1017.876 kN

0.285

End Plate Thickness

The required end plate thickness, tp, for four bolts stiffened end plate connection is checked according to AISC 358-16 §6.8

Ab

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_b = \dfrac%7B \pi d%5e2%7D %7B4%7D = \dfrac%7B \pi 24%5e2%7D %7B4%7D = 452.389 \; \mathrm%7Bmm%5e2%7D $$

 

Pt

Image Removed

Mathinline
body--uriencoded--$$ \normalsize P_t = F_%7Bt%7DA_b = 750 \times 10%5e%7B-3%7D \times 452.389 = 339.292 \; \mathrm%7BkN%7D $$

 

Mn

Image Removed

Mathinline
body$$ \normalsize M_n = 2 P_t ( h_o + h_1 ) $$
Mathinline
body--uriencoded--$$ \normalsize M_n = 2 \times 339.292 ( 473.038 + 315.271 ) \times10%5e%7B-3%7D = 534.934 \; \mathrm%7BkNm%7D $$

AISC 358-16 (6.8-5)

Fyp

235000 kN/m2

 

Yp

2517.347 mm

 

tp

Image Removed

Mathinline
body--uriencoded--$$ \normalsize t_%7Breq%7D = \sqrt%7B \dfrac%7B 1.11 \varphi M_n %7D %7B \varphi F_%7Byp%7D Y_p %7D %7D =\sqrt%7B \dfrac%7B 1.11 \times 0.75 \times 534.934 \times10%5e6 %7D %7B 0.9 \times 235 \times 2517.347 %7D %7D =28.921 $$

 

Required

Available

Ratio

Control

28.921 mm

30 mm

0.964

End Plate Shear Yield

The shear strength of connecting elements in shear is the minimum value obtained according to the limit states of shear yielding and shear rupture. Shear yielding is checked according to AISC 360-16.

Fyp

235000 kN/m2

 

Ag

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_%7Bg%7D = L_p \times t_ p = 420 \times 30 =12600 \; \; \mathrm%7Bmm%5e2%7D $$

AISC 360-16 J4-3

dm

394.154 mm

 

Mreq

119.655 kNm

 

Nreq

-27.504 kN

 

Rreq

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Breq%7D = \dfrac%7B M_%7Breq%7D %7D%7Bd_m%7D + \dfrac%7B N_%7Breq%7D %7D%7B2%7D = \dfrac%7B 119.655 %7D%7B394.154 \times 10%5e%7B-3%7D %7D + \dfrac%7B -27.504 %7D%7B2%7D = 289.822 \; \mathrm%7BkNm%7D $$

 

Rn

Image Removed

Mathinline
body$$ \normalsize R_n = 0.6 F_y A_g = 0.6 \times 235 \times 12600 = 1776.6 $$

 

ΦRn

Image Removed

Mathinline
body$$ \normalsize \varphi R_n = 1 \times 1776.6 = 1776.6 $$

 

Required

Available

Ratio

Control

289.822 kN

1776.6 kN

0.163

End Plate Shear Rupture

The shear strength of connecting elements in shear is the minimum value obtained according to the limit states of shear yielding and shear rupture. Shear rupture is checked according to AISC 360-16.

Fu

360000 kN/m2

 

An

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_%7Bn%7D = 30 ( 420 - 4 \times ( 24 + 2 + 3 ) ) =9120 \; \mathrm%7Bmm%5e2%7D $$

AISC 360-16 J4-4

dm

394.154 mm

 

Mreq

119.655 kNm

 

Nreq

-27.504 kN

 

Rreq

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_%7Breq%7D = \dfrac%7B M_%7Breq%7D %7D%7Bd_m%7D + \dfrac%7B N_%7Breq%7D %7D%7B2%7D = \dfrac%7B 119.655 %7D%7B394.154 \times 10%5e%7B-3%7D %7D + \dfrac%7B -27.504 %7D%7B2%7D = 289.822 \; \mathrm%7BkNm%7D $$

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_n = 0.6 F_u A_n = 0.6 \times 360 \times 9120 = 1969.92\; \mathrm%7BkN%7D $$

 

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.75 \times 1969.92 = 1477.44\; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

289.822 kN

1477.44 kN

0.196

Bolt Shear at Support

The calculation is made using the Elastic method, one of the methods selected in the steel analysis settings tab. For the details of this check, AISC Manual 14th 7-8 is used as a reference. In this check, the operation is performed on half of the symmetry axis and is calculated to form a force pair with the required force.

Ab

Image Removed

Mathinline
body--uriencoded--$$ \normalsize A_b = \dfrac%7B \pi d%5e2%7D %7B4%7D = \dfrac%7B \pi 24%5e2%7D %7B4%7D = 452.389\; \mathrm%7Bmm%5e2%7D $$

 

Fnv

Image Removed

Mathinline
body--uriencoded--$$ \normalsize F_n = 0.450 F_%7Bub%7D = 0.450 \times 1000 =450\; \mathrm%7BN/mm%5e2%7D $$

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_n = F_n A_b = 4 \times 450 \times 452.389 \times 10%5e%7B-3%7D = 814.3\; \mathrm%7BkN%7D $$

AISC 360-16 J3-1

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.75 \times 814.3 = 610.725 \; \; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

5.313 kN

610,725 kN

0.009

Bolt Bearing on End Plate

Bearing strength limit states of the connection plate that are “shear tear out” and “ovalization of bolt hole” for both end and inner bolts are checked according to AISC 360-16.

dh

24+3=27 mm

 

Lc,edge

Image Removed

Mathinline
body--uriencoded--$$ \normalsize L_%7Bc,edge%7D = L_e - 0.5d_h = 51.519 - 0.5 \times 27 = 38.019\; \mathrm%7Bmm%7D $$

 

Rn

Image Removed

Mathinline
body--uriencoded--\begin%7Baligned%7D \normalsize R_n = \mathrm%7Bmin%7D \left[\begin%7Bmatrix%7D 1.2L_c \times t \times F_u \\2.4d \times t \times F_u \end%7Bmatrix%7D\right] \end%7Baligned%7D

AISC 360-16 J3-6a

Rn-edge

Image Removed

Mathinline
body--uriencoded--\begin%7Baligned%7D \normalsize R_n = \mathrm%7Bmin%7D \left[\begin%7Bmatrix%7D 1.2(38.019)(30)(360 \times 10%5e%7B-3%7D) \\2.4(24)(30)(360\times 10%5e%7B-3%7D) \end%7Bmatrix%7D\right] \end%7Baligned%7D =492.72\; \mathrm%7BkN%7D

 

Lc,spacing

Image Removed

Mathinline
body--uriencoded--$$ \normalsize L_%7Bc,spacing%7D =157.767 - 27 = 130.767\; \mathrm%7Bmm%7D $$

 

Rn-spacing

Image Removed

 

Rn

Image Removed

Mathinline
body--uriencoded--\begin%7Baligned%7D \normalsize R_n = \mathrm%7Bmin%7D \left[\begin%7Bmatrix%7D 1.2(130.767)(30)(360 \times 10%5e%7B-3%7D) \\2.4(24)(30)(360\times 10%5e%7B-3%7D) \end%7Bmatrix%7D\right] \end%7Baligned%7D =622.08\; \mathrm%7BkN%7D

 

Rn

Mathinline
body--uriencoded--$$ \normalsize R_%7Bn%7D = n_eR_%7Bn,edge%7D + n_sR_%7Bn,spacing%7D $$

Mathinline
body--uriencoded--$$ \normalsize R_%7Bn%7D = 2 \times 492.72 + 2 \times 622.08 = 2229.6 \; \mathrm%7BkN%7D $$

 

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.75 \times 2229.6 = 1672.2\; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

5.313 kN

1672.2kN

0.003

Weld Size

...

The required end weld sizeis checked according to AISC DG-4.

Fyp

235000 kN/m2

AISC DG-4-2 nd

2.1.7

tbw

9 mm

 

Fe

480000 kN/m2

 

w

Image Removed

Mathinline
body--uriencoded--$$ \normalsize w \geq \dfrac %7B \varphi 0.6 F_%7Byp%7D t_%7Bwb%7D%7D %7B2 \varphi_w 0.6 F_e 0.707%7D%7D =\dfrac %7B 1 \times 0.6 \times 235 \times 9%7D %7B2 \times 0.75 \times 0.6 \times 480\times 0.707%7D%7D = 3.97\; \mathrm%7Bmm%7D $$

Required

Available

Ratio

Control

3.97 mm

8.487 mm

0.468

Weld Strength

...

The required end weld strength is checked according to AISC DG-4.

w

8.487 mm

 

FE

480 N/mm2

 

le

190.193 mm

 

Rn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize R_n = 2 \times 0.6 \times 480 \times 10%5e%7B-3%7D \times 0.707 \times 8.487 \times 190.193 = 657.34\; \mathrm%7BkN%7D $$

AISC DG-4-2 nd

2.1.8 

ΦRn

Image Removed

Mathinline
body--uriencoded--$$ \normalsize \varphi R_n = 0.75 \times 657.34 = 493\; \mathrm%7BkN%7D $$

 

Required

Available

Ratio

Control

5.313 kN

492.981 kN

0.011

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