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    Understanding Seasonal Thermal Loads and Lift Joint Effects on Concrete Arch Dam Safety Thermal Analysis of a Concrete Arch Dam

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    AI Summary

     This session explores the thermal behavior of concrete arch dams and the impact of seasonal temperature variations on structural performance. Using finite element analysis, it highlights how thermal gradients, reservoir interactions, and lift joint behavior influence stress distribution, displacement, and potential cracking. Attendees will learn how to model temperature-induced effects, evaluate critical areas under summer and winter conditions, and assess long-term safety and stability of aging dams. The session also emphasizes the importance of non-linear material modeling and proper boundary conditions for accurate structural prediction. 

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    Description

     In this session, we will present a practical approach to understanding and evaluating the thermal behavior and seasonal effects on concrete arch dams. The session begins by exploring how temperature gradients, solar radiation, and reservoir interactions influence stress distribution and structural displacement. Participants will then learn how lift joints interact with these thermal effects, potentially becoming critical planes for cracking or localized deformation. Guidance on FEM modeling techniques, boundary conditions, and monitoring strategies will be provided to help engineers assess long-term dam safety, structural performance, and durability under real operational and environmental conditions. 

    Key Points

    Seasonal Thermal Effects on Concrete Dams
    Examine how daily and seasonal temperature variations generate internal stresses and influence structural performance of arch dams.

    Temperature-Induced Stress Gradients
    Understand how uneven heating and cooling across the dam cross-section affects tensile and compressive stress distribution.

    Lift Joint Influence on Structural Response
    Analyze the role of horizontal construction joints in modifying thermal stress transfer and localized deformation.

    Practical FEM Modeling Guidance
    Learn best practices for incorporating thermal loads, boundary conditions, and reservoir interactions to accurately predict dam behavior and evaluate long-term safety.

    Speaker

    Harsha Tadavarthi Geotechnical Team Leader & Technical Manager MIDAS IT Australia
    Harsha Tadavarthi is the Technical Manager for the Oceania region at MIDAS IT, with over 8 years of experience in geotechnical engineering. He specializes in advanced numerical modeling and provides expert support for geotechnical and structural analysis across dams, hydropower, underground, mining, and other critical infrastructure projects. Harsha's expertise also includes thermal and seismic simulation of dams, as well as the design and analysis of complex geotechnical systems. He leads the seamless delivery of solutions in dam engineering, ensuring industry-leading support and innovation in geotechnical modeling. Through consultancy, training, and international workshops, he empowers professionals with both practical insights and theoretical foundations in geotechnical and structural modeling, fostering excellence across the engineering community.
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