# Double Angle Connection

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.

### 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 13.3.13Equation 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 13.3.13Equation 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

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