Joining Plates Design per AISC 360-16

How does ideCAD design joining plate connection according to AISC 360-16?

Joining plate connection limit states and geometry checks are done automatically according to AISC 360-16.

Symbols

A_b: Non-threaded bolt web characteristic cross-sectional area
A_g: Gross area
A_n: Net cross-section area
d: Characteristic diameter of the stem of the bolt (the diameter of the non-threaded stem of the bolt)
d_h: Bolt hole diameter
F_y: Structural steel characteristic yield strength
F_u: Structural steel characteristic tensile strength
F_yb: Bolt characteristic yield strength
F_ub: Bolt characteristic tensile strength
s: Distance between bolt-hole centers
L_c: The clear distance between bolt holes
L_e: The distance from the center of the bolt hole to the edge of the assembled element
L_eh: The horizontal distance from the center of the bolt hole to the edge of the assembled element
L_ev: The vertical distance from the center of the bolt hole to the edge of the assembled element
t_p: Plate thickness
P_t: Bolt tensile strength
R_n: Characteristic strength
w: Size of weld leg, in. (mm)

Connection Geometry

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.

L_eh ≥ L_e-min	AISC 360-16 J3.4
L_eh	55 mm	L_eh ≥ 2d = 2 * 24 = 48 mm conformity check for application	√
L_{e- 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.

L_ev ≥ L_e-min	AISC 360-16 J3.4
L_ev	51.519 mm	L _eh ≥ 2d = 2 * 24 = 48 mm conformity check for application	√
L_e-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 ≥ w_min	AISC 360-16 J2.4
w	8.487 mm		√
w_min	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.

F_t	750000 kN/m2
A_b		AISC DG-4-2^nd 3.7
P_t
h₀	473.038 mm
h₁	315.271 mm
d_m	394.154 mm
M_req	119.655 kNm
N_req	-27.504 kN
R_req
R_n
ΦR_n

Required	Available	Ratio	Control
289.822 kN	1017.876 kN	0.285	√

End Plate Thickness

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

A_b
P_t
M_n		AISC 358-16 (6.8-5)
F_yp	235000 kN/m²
Y_p	2517.347 mm
t_p

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.

F_yp	235000 kN/m2
A_g		AISC 360-16 J4-3
d_m	394.154 mm
M_req	119.655 kNm
N_req	-27.504 kN
R_req
R_n
ΦR_n

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.

F_u	360000 kN/m2
A_n		AISC 360-16 J4-4
d_m	394.154 mm
M_req	119.655 kNm
N_req	-27.504 kN
R_req
R_n
ΦR_n

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.

A_b
F_nv
R_n		AISC 360-16 J3-1
ΦR_n

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.

d_h	24+3=27 mm
L_c,edge
R_n		AISC 360-16 J3-6a
R_n-edge
L_c,spacing
R_n-spacing
R_n
ΦR_n

Required	Available	Ratio	Control
5.313 kN	1672.2kN	0.003	√

Weld Size

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

F_yp	235000 kN/m²	AISC DG-4-2 ^nd 2.1.7
t_bw	9 mm
F_e	480000 kN/m²
w

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
F_E	480 N/mm²
l_e	190.193 mm
R_n		AISC DG-4-2 ^nd 2.1.8
ΦR_n

Required	Available	Ratio	Control
5.313 kN	492.981 kN	0.011	√

Joining Plates Design Report

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Joining Plates Design Report

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