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- WSP engineers present a real-world case study of half joint assessment on UK bridges using MIDAS Civil NX and FEA NX, covering both a multi-span post-tensioned bridge and a steel composite bridge.
- The session addresses key practical challenges including modelling strategy, local stress analysis, and how assessment findings drive engineering decision-making on live infrastructure projects.
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Description
In this session, Rajeshwaran M, Luke Fox, and Neeraj Kulkarni from WSP present a detailed, practice-based case study on the assessment of half joint details in existing UK bridge structures using MIDAS Civil NX and MIDAS FEA NX. Half joints are a critical and often vulnerable detail in older concrete bridge decks, and their accurate assessment requires a carefully considered workflow that bridges global structural behaviour and highly localised stress conditions.
The WSP team walks through two representative project types — a multi-span post-tensioned concrete bridge and a steel composite bridge — demonstrating how the assessment was structured from initial global modelling through to local FEA analysis of the half joint region. The session covers the real engineering challenges encountered on these projects, including decisions around modelling strategy, interpretation of local stress results, and how those results informed assessment outcomes and strengthening decisions.
Attendees will gain direct insight into how experienced bridge engineers apply MIDAS tools within a rigorous UK assessment framework.
Key Points
Real UK bridge case studies from WSP: half joint assessment of a multi-span post-tensioned bridge and a steel composite bridge using MIDAS Civil NX and FEA NX
Practical modelling strategy for capturing both global structural behaviour and localised half joint stress conditions within a single integrated workflow
Challenges of local stress analysis at half joint details, including shear transfer, reinforcement interaction, and interpretation of FEA results
How assessment findings directly influenced engineering decisions including strengthening recommendations and structural re-rating on live projects
Benefit
Official CIVIL NX License
Issued upon session completion
Speaker