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Understanding Seasonal Thermal Loads and Lift Joint Effects on Concrete Arch Dam Safety Assessing the Safety of Aging Arch Dam

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AI Summary

 This webinar explores how engineers can assess the long-term safety of aging concrete arch dams through a practical case study of a 100-year-old dam in Australia. Using MIDAS FEA NX, the session covers static, thermal, and seismic evaluation workflows, including dam–foundation interaction, lift and contraction joints, seasonal temperature effects, nonlinear time history analysis, and sliding stability checks. Participants will see how investigation data, load combinations, stress and displacement results are combined to evaluate structural integrity and dam safety with greater engineering confidence. 

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Description

 Explore how finite element analysis can support the safety assessment of aging concrete arch dams through a real-world case study of a 100-year-old dam in Australia. This session highlights how static, thermal, and seismic effects are evaluated using MIDAS FEA NX, covering dam–foundation interaction, joint modeling, seasonal temperature variation, nonlinear seismic analysis, and sliding stability checks to support long-term dam safety decisions. 

Key Points

Safety assessment of a 100-year-old concrete arch gravity dam

Static, flood, thermal, and seismic loading evaluation

Dam–foundation interaction modeling

Unbonded lift joints and vertical contraction joints

Using coring, field investigation, and lab test data for realistic dam safety evaluation

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.
Dev Bharatia Technical Support Engineer MIDAS IT
Dev holds a Master's in Structural Engineering from SVNIT Surat and has experience across bridge and building projects, covering both design and site execution. He enjoys tackling complex engineering problems and improving structural safety and efficiency. At MIDAS, he has worked with clients across the UK, Europe, SEA, India, and the US, and now focuses on supporting projects in the US and UK using MIDAS technology.
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