# Brace Center Connection Design

The brace center connection is formed by bolting and welding the steel brace member to the column, beam or column-to-beam connection point by bolting and welding. Bolt control, weld control, plate control and connection application limits control are performed automatically according to the placement of the elements of the connection. Brace center connection design is made automatically according to the Design, Calculation and Construction Principles of Steel Structures (ÇYTHYEDY) or AISC 360-16 regulations and a connection report is created.

In the brace center connection calculation, horizontal and vertical bolt distances, butt plate weld thickness, continuity plate weld thickness and application limits are checked under geometry control. In strength control, cross bolt slip, plate bolt hole crushing, ski control, Whitmore section buckling, plate pressure leakage are checked.

## Brace - Gusset Connection

### Geometry Checks

#### Bolt Spacing

 s min ≥ 3d ÇYTHYEDY 13.3.6 s 60 mm d 20 mm s =60 mm > smin = 3*20=60 mm √

#### Horizontal Edge Distance

 L eh ≥ L e- min ÇYTHYEDY 13.3.7 L eh 57 mm √ L e- min 26 mm Minimum distance check according to Table 13.9 √

#### Vertical Edge Distance

 L ev ≥ L e- min ÇYTHYEDY 13.3.7 L ev 45 mm Conformity check for L eh ≥ 2d = 2 * 20 = 40 mm application √ L e- min 26 mm Minimum distance check according to Table 13.9 √

#### Weld Size

 a ≥ a min ÇYTHYEDY 13.3.7 a 4 mm √ a min 3.5 mm Table 13.4 √

### Strength Checks

#### Bolt Shear at Brace

 A b Fn Rn ΦRn

Required

Available

Ratio

Control

169.593 kN

212.058 kN

0.800

#### Bolt Bearing on Plate

 d h 20+2=22 mm Lc,edge Rn ÇYTHYEDY 13.3.13Equation 13.14a and13.14b Rn-edge Lc,spacing Rn-spacing Rn ΦRn

Required

Available

Ratio

Control

169.593 kN

456.84 kN

0.371

#### Bolt Bearing on Gusset

 d h 20+2=22 mm Lc,edge Rn ÇYTHYEDY 13.3.13Equation 13.14a and13.14b Rn-edge Lc,spacing Rn-spacing Rn ΦRn

Required

Available

Ratio

Control

169.593 kN

304.56 kN

0.557

#### Weld Strength

 Fe 490000 kN/m2 w The weld thickness taken from the combination menu is 0.707 * w value. 4 / 0.707 = 5.658 mm F u-plate 469.999  N/mm2 F u-brace 410 N/mm2 tplate 15 mm t brace 15 mm lw 150 mm R nw Rn-plate Rn-brace RnBM Rn ΦRn

Required

Available

Ratio

Control

169.593 kN

529.2 kN

0.320

#### Whitmore Section Compression Yield

 K 0.65 L 0 mm r 2.887 mm KL / r 0 Fy 355 N/mm2 Ag 1292.82 mm2 Rn ÇYTHYEDY 13.20 ΦRn

Required

Available

Ratio

Control

169.593 kN

413,056 kN

0.411

#### Gusset Compression Yield

 K 0.65 L 65 mm r 4.33 mm KL / r 9.76 Fy 355 N/mm2 Ag 2009.999 mm2 Rn ÇYTHYEDY 13.20 ΦRn

Required

Available

Ratio

Control

169.593 kN

642,195 kN

0.264

JavaScript errors detected