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Connection Design As Per Bs en 1993-1-8:2005

This document summarizes the design checks for bolted and welded connections according to BS EN 1993-1-8:2005. It provides the design data for material properties and loads. It then describes checks performed for bolt shear, bolt bearing, bolt tension, combined bolt shear and tension, and weld capacity. All checks confirm the connection design is sufficient and safe based on the given structural steel grade, bolt diameter, plate thickness, and loading.

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609 views2 pages

Connection Design As Per Bs en 1993-1-8:2005

This document summarizes the design checks for bolted and welded connections according to BS EN 1993-1-8:2005. It provides the design data for material properties and loads. It then describes checks performed for bolt shear, bolt bearing, bolt tension, combined bolt shear and tension, and weld capacity. All checks confirm the connection design is sufficient and safe based on the given structural steel grade, bolt diameter, plate thickness, and loading.

Uploaded by

waquarstr
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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CONNECTION DESIGN AS PER BS EN 1993-1-8:2005

DESIGN DATA

Structural steel grade = S275


Yeid Strength = 275 N/mm²
Ultimate Tensile Strength = 360 N/mm²
Modulus of elasticity of steel , E = 210000 N/mm²

Max tension = 4.71 KN Refer Attahed staad out put


Max Shear = 7.7 KN
Max MZ = 0.62 KNm
BOLT CHECK FOR SHEAR
Design Criteria = Fv,Ed < Fv,Rd
Total Design Shear Force = 7.7 KN
Shear Due To moment = 0
= 0.00 KN
Number Bolt provided = 2
Dia of Bolt = 16 mm
Area of rod = 201.0619 mm²
Design Shear per Bolt (Fv,Ed) = 3.85 KN

Design shear resistance per bolt ( Fv,Rd) =

fub = 800 N/mm² Refer Table 3.1 BS EN 1993-1-8:2005


ƳM2 = 1.25 Refer Table 2.1 BS EN 1993-1-8:2005
Fv,Rd = (0.6 x 800 x 0.75 x A )/1.25
= 57.91 KN
(Fv,Ed) 3.85 KN < 57.91 KN ( Fv,Rd)
HENCE BOLT SAFE SHEAR
BOLT CHECK FOR BEARING
Design Criteria = Fv,Ed < Fb,Rd
Plate thickness (t) = 12 mm
Design Bearing Resistance per bolt ( Fb,Rd) =

Ultimate Tensile Strength (fu) = 510 N/mm²


ɑb = 1 Refer Table 3.4 BS EN 1993-1-8:2005
( Fb,Rd) = 109.6704 KN
(Fv,Ed) 3.85 KN < 109.67 KN ( Fb,Rd)
HENCE BOLT SAFE BEARING

BOLT CHECK FOR TENSION


Design Criteria = Ft,Ed < Ft,Rd

Design Tension Resistance per bolt ( Ft,Rd) =

K2 = 0.63 Refer Table 3.4 BS EN 1993-1-8:2005


Design Tension Resistance per bolt ( Ft,Rd) 60.80 KN
Design of Tensile force per rod ( Ft,Ed)
Direct Tension = 4.71 KN
Direct Tension Per bolt = 4.00
= 1.18 KN
Tension Due To moment = 0.271/(0.05X1)
= 5.42 KN
Total Tension per rod = 6.60 KN
( Ft,Ed) = 6.60 KN
( Ft,Ed) 6.60 KN > 60.80 KN ( Ft,Rd)
HENCE BOLT SAFE TENSION

BOLT COMBINE SHEAR AND TENSION CHECK


Fv,Ed + Ft,Ed <1
Fv,Rd 1.4x Ft,Rd
3.85 + 6.60 = 0.14
57.91 85.12
HENCE BOLT SAFE IN COMBINE SHEAR AND TENSION

WELD CAPACITY CHECK


Design Criteria = Fw,Ed < Fw,Rd
Design weld resistance per unit length (Fw,Rd) = fvw.d x a
fvw.d = 220 0 Refer clause 4.5.3.3 BS EN 1993-1-8:2005
a = 6 mm
Fw,Rd = 1320 N/mm
Length of the weld = 150 mm
Total weld resistance (Fw,Rd) = 198 KN
> 4.71 KN
HENCE OK

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