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    Webinar
    Construction Sequence • Time-Dependent Effects • Deflection & Prestress Losses
     
     
    Managing Deflection and Prestress Losses in Balanced Cantilever Bridges
    📅 8th October, 2026 (Thursday) | 🕒 12:00 PM – 1:00 PM (IST) | 📍 Live on GoToWebinar
    Register Now →
       
    📝 OVERVIEW
    Deflection and prestress losses develop continuously during the construction and service life of balanced cantilever bridges, directly influencing deck geometry and long-term performance. This webinar will demonstrate how MIDAS CIVIL NX can be used to simulate the construction sequence, account for time-dependent effects, evaluate stage-wise deflection and prestress losses, and support effective geometry control and prestressing decisions.
    WHAT YOU WILL EXPLORE
    01
    Construction
    Simulate the balanced cantilever construction sequence and track structural behaviour stage by stage.
    02
    Time-Dependent Effects
    Account for time-dependent effects and evaluate their influence on deflection and prestress losses.
    03
    Geometry Control
    Evaluate stage-wise deflection and prestress losses to support effective geometry control and prestressing decisions.
    KEY LEARNING AREAS
    ✓ Balanced cantilever construction sequence
    ✓ Time-dependent effects during construction and service life
    ✓ Stage-wise deflection evaluation
    ✓ Prestress losses and their effects on bridge behaviour
    ✓ Deck geometry and long-term performance
    ✓ Geometry control and prestressing decisions
    Practical Focus: Use MIDAS CIVIL NX to simulate construction stages, account for time-dependent effects, evaluate deflection and prestress losses, and make informed decisions for geometry control and prestressing throughout the bridge lifecycle.
    📌 Agenda
     
    00:00 – 00:05
    Understanding Balanced Cantilever Behaviour
    Introduce the balanced cantilever construction method and its key engineering challenges. Understand why deflection and prestress-loss control are essential for achieving the target bridge profile.
    00:05 – 00:15
    Deflection and Prestress-Loss Mechanisms
    Examine the effects of self-weight, construction loads, prestressing, creep, shrinkage, and tendon relaxation. Understand how these effects interact during construction and long-term service.
    00:15 – 00:30
    Construction-Stage Modelling in MIDAS CIVIL NX LIVE DEMO
    Model segment-wise construction, component activation and deactivation, tendon stressing, and construction loads. Establish realistic assumptions for stage-by-stage analysis.
    00:30 – 00:45
    Evaluating Deflection and Prestress Losses
    Assess cantilever-tip deflection, girder deformation, tendon stresses, and prestress losses across construction stages. Identify critical stages and interpret results for geometry control and structural performance.
    00:45 – 00:55
    Deflection Control and Prestressing Optimization
    Use analysis results to anticipate excessive deformation and account for time-dependent behaviour. Refine the construction sequence, camber, and prestressing strategy to achieve the target bridge profile.
    00:55 – 01:00
    Live Q&A and Closing Remarks
    Open discussion to address attendee questions, clarify key concepts, and recap the main takeaways.
    🎙️ Meet the Speaker
    Eng. Abhishek Chaurasia
    Er. Abhishek Chaurasia
    Technical Support Engineer | MIDAS IT
    Abhishek Chaurasia is a Technical Support Engineer at MIDAS R&D Centre India Pvt. Ltd, with expertise in advanced structural analysis and finite element modelling. He earned his M.E. in Structural Engineering from BITS Pilani and was awarded a silver medal in his B.Tech from SRMU.

    He has previously worked as an Assistant Professor at SRMU Lucknow and as a Software Developer at Arup, gaining strong experience in bridge engineering and computational modelling. He is also a co-author of a research paper on Computational Damage Models published in Theoretical and Applied Fracture Mechanics.

    At MIDAS, he delivers training, resolves technical issues, and provides expert guidance to MIDAS Civil NX users, supporting engineers in improving workflow efficiency and optimizing design processes.
    Technical Skills
    Advanced Structural Analysis  •  Finite Element Modelling  •  Bridge Engineering  •  Computational Modelling  •  MIDAS Civil NX