Welded connections: fillet and butt welds

About this calculation

Fillet and butt weld groups of any layout under N, Q, M and torsion: elastic method, checks to EN 1993-1-8, SP 16 and AISC 360, detailing, required leg size, fatigue; angle heel/toe welds.

Design basis

EN 1993-1-8, Section 4; EN 1993-1-9; SP 16.13330.2017, Sections 12, 14; AISC 360-22, Chapter J, Appendix 3

Input data

• Design code: Design code
• Joint layout: Weld layout; Weld length h (along z); Distance b (along y); I-section depth h; Flange width bf; Flange thickness tf; Web thickness tw; Welds on the inner faces of flanges; Web welds (both sides); Tube outer diameter D; Segments: y₁ z₁ y₂ z₂; … (mm); Angle leg width b; Number of angles; Force share of the heel weld α; Heel weld length l1; Toe weld length l2
• Weld: Weld type; Fillet weld leg kf (w); Toe weld leg; Butt weld thickness t (thinner part); PJP effective throat a; Lap joint: long-weld reduction; Full-size weld ends (run-off tabs, end returns)
• Materials: Steel of the connected parts; Thinner part tmin; Thicker part tmax; Correlation factor βw; Partial factor γM2; Partial factor γM0; Welding process; Weld position; Welding consumable (Table G.2); Material factor γm; Service factor γc; Physical (NDT) inspection of butt welds; Electrode (FEXX); Directional strength increase (J2-5)
• Design force: Normal force N (along x, tension +); Axial force in the member N; Shear Qz (down +); Shear Qy (right +); Lever of Qz from the weld plane ex (bracket); In-plane offset of Qz ey; In-plane torque Mx (counter-clockwise +); Bending moment My (tension at z > 0); Bending moment Mz (tension at y > 0)
• Fatigue: Check fatigue; Maximum cyclic forces as a share of the design forces k; Stress ratio ρ = σmin/σmax; Number of cycles n, million; Detail category, normal stress ΔσC; Detail category, shear ΔτC (m = 5); Partial factor γMf; Fatigue group (Annex K); AISC Appendix 3 category

Output

• Results with intermediate values
• Charts and diagrams
• PDF, Word, Excel report

FAQ