MAIN JOINT DATA

Configuration Beam to Beam

Beam IPE 200

Beam UPN 200

Type of connection Fin plate connection

Materials S275

DETAILED DATA

Beam dataBEAM IPE 200 UPN 200

TYPE supporting supported

Depth,hb/mm 200 200

Thickness of web,tbw/mm 5.6 8.5

Width,bf/mm 100 75

Thickness of flange,tcf/mm 8.5 11.5

Root radius, r/mm 12 6

Yield strength,Fy/N/mm2 275 275

Ultimate tensile strength,Fu/N/mm2 410 410

Gap,gh/mm 10

Depth,hp/mm 130

Width,bp/mm 85

THICKNESS,tp/mm 6

Notch length,ln/mm 45

Notch distance dnt /mm 20

Notch distance dnb /mm 20

Bolt detailDiameter,d/mm 16

Hole diameter,do/mm 18

End distance,e1/mm 35

Edge distance,e2 /mm 50

Edge distance,e2b, e1b /mm 35

distance from centre of bolt to supporting beamZ/mm 50

Vertical bolt spacing, p1/mm 60

Number of bolt, n 2

Ultimate tensile strength , Fub/N/mm2 800

Yield strength,Fy/N/mm2 640

Stress tensile area, As/mm2

157

Force acting on structure

VEd/kN 5.4

VEd /2/kN 2.7

check 1 Recommended detail

hp>0.6hbok

Bolt grade

8.8

check 2 Supported beam- Bolt group

Bolt shear

BASIC REQUIREMENT VEd < VRd

VRd/kN 62

Checked OK

Bolt bearing in fin plate

BASIC REQUIREMENT VEd < VRd

VRd/kN 133

Checked OK

ok

CALCULATION NOTE FOR STRINGER AND PLATFORM

Plate thickness,tp< 0.5d

Fin plate data

End edges > 2d plate(long or short)ok Long plate

Bolt bearing in supported beam web

BASIC REQUIREMENT VEd < VRd

VRd/kN 141

Checked OK

check 3 Supported beam- fin plateShear

BASIC REQUIREMENT VEd < VRd,min

VRd,min = min(VRd,g ,VRd,n, VRd,b)

Gross section

VRd,g /Kn 98

Net section

VRd,n /kN 121

Block shear

VRd,b/kN 111

VRd,min/kN 98

Checked OK

Bending

BASIC REQUIREMENT VEd < VRd

hp > 2.73Z NO

VRd/kN 93

Checked OK

Lateral torsional buckling of fin plate

BASIC REQUIREMENT VEd < VRd

VRd/kN 93

Checked OK

check 4 Supported beam-web in shear

Shear

BASIC REQUIREMENT VEd < VRd,min double notch

VRd,min = min(VRd,g ,VRd,n, VRd,b)

Gross section

VRd,g /kN 194

Net section

VRd,n /kN 198

Block shear

VRd,b/kN 133

VRd,min/kN 133

Checked OK

check 5 Supported beam-local stability of notched beam

When beam is restrained against lateral torsional buckling, no account need to be taken of notch stabilityprovided that

the following conditions are met.

dnt < hb/5 ok

ln< hb/twb ok

check 6 Supporting beam-column weld

a > 0.5 tp ok a-effective weld throat thickness

check 7 Supporting beam shear and bearing

Local shear

BASIC REQUIREMENT Ved /2 < FRd

FRd/kN 116

Checked OK

Punching shear

Provided that the requirement given below is satisfied, yielding of fin plate occurs before punching shear failure of supporting

member.

If requirement is not satisfied, strenghtening will be necessary.

BASIC REQUIREMENT

Checked OK

Recommended geometry for fin plate connection

When detailing the joint, the main requirements are as follows:

Av - Shear area of element

As Tensile stress area

W- Section modulus (subscript E1-elastic modulus, P1- plastic modulus)

mo- Partial factor for resistance of cross-section

m1- Partial factor for resistance of members to instability assessed by member checks

m2- Partial factor for resistance of bolt, weld, Partial factor for cross-section to fracture

tf- Thickness of flange

tw- Thickness of web

tp- Thickness of plate

V- Shear (subscript Ed- design effect force, Rd-design resistant force)

n- Total number of bolt

n1- Number of horizontal bolt rows

p1- Vertical bolt spacing for fin plate

r- Radius of section

s- Leg of fillet weld

Fu- Ultimate tensile strength

Fub- Ultimate tensile strength of bolt

F- Tying force or resistance (subscript Ed- design effect force, Rd-design resistant force)

h- Depth of section

hp- Height of plate

d0- Diameter of hole

e1- End distance

e2- edge distance

e2b- Edge distance on beam side

Fy- Yield strength of steel

5. All end and edges distances on plate and beam web are atleast 2do

Major symbol used for connection design

a - Effective throat of weld

b - Width of section

d - Diameter of bolt

Fin plate connection according to Eurocode 3(BS EN 1993-1-8)

1. Fin plate positioned close to top flange in order to provide positional restraint.

2. Fin plate depth is atleast 0.6 times supported beam depth, in order to provide beam with adequate torsional restraint.

3. Thickness of fin plate, tp 0.5d

4. Property class 8.8 bolt used, non-preloaded in clearance hole