AMETRA has checked the mechanical solidity of the "Duplex V2" walkway structure according to Eurocodes.

Scope of the service:

• Analysis and appropriation of the existing structure and its documentation:
• Structure diagrams
• Materials used in the structure and mechanical characteristics
• Mass of parts (guardrails, gratings, stairs, etc.)
• Mass of equipment
• Equipment fastening points on the structure
• Description of the assemblies (screws, plates, weldings)
• Description of the anchorings
• Characteristics of anchorings' concrete
• Load loading and lowering from various equipment to be taken into account.
• Checking the mechanical hold of the structure
• Checking the assembly and anchorings
• Drafting the simplified calculation report presenting the preliminary results as well as proposals for possible reinforcements
• Drafting the final calculation report

Approach:

• Modelling the structure
• Excluding weld bead
• In 3D spatial geometry by line and surface elements
• Application of static loads from EUROCODES 0 and 1
• Analysis of constraints and movement within the structure, checked according to EUROCODE 3
• Calculation of reaction to load
• Calculation of assemblies according to EUROCODE 3
• Calculation of anchorings
• Drafting the calculation report and the recommended reinforcements

 Checking the mechanical hold of the structure depending on the load:

• Own weight
• Operating load
• Weight of snow
• Wind
• Combination of loads described above