Double angle connection is a type of connection that connects two profiles to each other with two angles (cornier or L profile). Bolt control, weld control and plate control are performed automatically according to the placement of the elements of the connection. Double angle connection design is made automatically according to the Design, Calculation and Construction Principles of Steel Structures (ÇYTHYEDY) (GKT and YDKT) or AISC 360-16 (ASD and LRFD) regulations and the connection report is created.

In the calculation of the connection with double angle plate, the distance control between the bolts, horizontal and vertical edge distance control, weld thickness control, mounting stability controls are made as geometry control. Angle shear yielding, beam and angle shear failure, block slip in beam and angle iron, crushing in beam and angle bolt holes, shear in beam bolts, welding strength are checked as strength control.

Connection Geometry

Geometry Checks

Distance between bolts

smin ≥ 3d       

ÇYTHYEDY 13.3.6

 

 

s

79.5 mm

 

 

d

20 mm

s =79.5 mm > smin = 3*20=60 mm

Horizontal Edge Distance

Leh ≥ Le- min     

ÇYTHYEDY 13.3.7

 

 

Leh

50.75 mm

L eh ≥ 2d = 2 * 20 = 40 mm conformity check for application

Le-min

26 mm

Minimum distance check according to Table 13.9

Vertical Edge Distance

Lev ≥ Le-min     

ÇYTHYEDY 13.3.7

 

 

Lev

40 mm

L eh ≥ 2d = 2 * 20 = 40 mm conformity check for application

Le-min

26 mm

Minimum distance check according to Table 13.9

Weld Thickness

a ≥ amin     

ÇYTHYEDY 13.3.7

 

 

a

6 mm

 

amin

3.5 mm

Table 13.4

Erection Stability

L ≥ hb /  2

ÇYTHYEDY 13.3.7

 

 

L

239 mm

 

 

hb

248.6 mm

L=239 > 248.6/2=124.3 mm

Strength Checks

Angle Shear Yield

Ag

 

Fy

235.359 N/mm2

 

Rn

ÇYTHYEDY 13.17

Rn / Ω

 

Required

Available

Ratio

Control

73.288 kN

540 kN

0.136

Beam Shear Rupture

Anv

 

Fu

362.846 N/mm2

 

Rn

ÇYTHYEDY 13.18

Rn / Ω

 

Required

Available

Ratio

Control

73.288 kN

176.213 kN

0.416

Angle Shear Rupture at Beam

Anv

 

Fu

362.846 N/mm2

 

Rn

ÇYTHYEDY 13.18

Rn / Ω

 

Required

Available

Ratio

Control

73.288 kN

436,286 kN

0.168

Angle Block Shear at Beam

Ag

 

Anv

 

Ae.g.

 

Fy

235.359 N/mm2

 

Fu

362.846 N/mm2

 

Ubs

1

 

 

 

Rn

ÇYTHYEDY 13.19

Rn / Ω

 

Required

Available

Ratio

Control

73.288 kN

505.94 kN

0.145

Bolt Bearing on Beam

dh

20+2=22 mm

 

Lc,edge

 

Rn

ÇYTHYEDY 13.3.13

Equation 13.14a and13.14b

Rn-edge

 

Lc,spacing

 

Rn-spacing

 

Rn

 

 

Rn / Ω

 

Required

Available

Ratio

Control

73.288 kN

185,487 kN

0.395

Bolt Bearing on Angle at Beam

dh

20+2=22 mm

 

Lc,edge

 

Rn

ÇYTHYEDY 13.3.13

Equation 13.14a and13.14b

Rn-edge

 

Lc,spacing

 

Rn-spacing

 

Rn

 

 

Rn / Ω

 

Required

Available

Ratio

Control

73.288 kN

569.505 kN

0.129

Bolt Shear at Beam

Ab

Fn

 

Rn

 

Rn / Ω

Required

Available

Ratio

Control

40.195kN

113,097 kN

0.355

Weld Strength at Support

Fe

480000 kN/m2

in

7.072

Fu

362.846  N/mm2

l

239 mm

Rn

Rn / Ω

Required

Available

Ratio

Control

73.288 kN

171.6 kN

0.427