Skandar Mokni | Mechanical & Software Engineer
Structural Engineering // Completed

Metal Structure Design & Welded Joint Analysis

Technical Datasheet

MECH-004

Project Overview

A complete structural analysis and design project for a welded steel cantilever support, performed within the course Metal Structures in Mechanical Engineering. The project consisted of determining the load-bearing capacity of the cross-section, selecting and dimensioning structural elements, calculating stress distributions, and verifying the static strength of both the beam and column.

The project also included a full analytical verification of four welded joints, following simplified and advanced weld design methods. The design was modeled according to standard engineering practices for steel structures made of S355 structural steel and checked against prescribed safety factors.

Key Engineering Tasks

  • Cross-Section Resistance: Determined allowable normal/shear stresses and analyzed geometry.
  • Cantilever Beam Analysis: Calculated max bending (28 MPa) and shear stresses (2.85 MPa).
  • Column Analysis: Verified combined axial load + bending (σmax ≈ 92.5 MPa).
  • Welded Joint Verification: Checked normal, shear, and combined stresses for all 4 joints.
  • Weld Sizing: Designed throat dimensions and effective lengths satisfying σw,Ed < fvw,d.
  • Documentation: Created full structural dimensioning and manufacturing drawings.

Tools & Technologies

Manual Structural Analysis
S355 Standards
Weld Strength Calculations
Stress Diagrams

3D Assembly Model

Project Gallery

Technical Documentation

Specifications

Material S355 structural steel
Applied Load F = 7.3 kN
Cantilever Length L = 200 mm
Column Profile SHS 160 × 160 × 5.6 mm
Yield Strength (fy) 355 MPa
Ultimate Strength (fu) 490 MPa
Design Stress Limits σRd = 355 MPa, τRd ≈ 205 MPa
Weld Design Strength fvw,d ≈ 251 MPa
Max Bending Moment 1497 kN·cm (Column)
Safety Factor Verified per Eurocode (γM0=1.0, γM2=1.25)