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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

Dileep Kumar Chandragiri Hydropower & Dam Engineering Specialist

Dileep is a Chartered Professional Engineer and hydropower & dam engineering specialist with over 18 years of experience across civil and structural engineering projects in India, Nepal, Bhutan, Afghanistan, Africa, and Australia.

He has extensive expertise in hydropower project design, dam and headworks structures, tunnels, powerhouses, spillway upgrades, and dam safety risk assessments, with project experience ranging from 2.60 MW to 1680 MW.

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