Seismic performance assessment of high asphalt concrete core rockfill dam considering shorter duration and longer duration

The particular interest produced by the seismological characteristics impacting structural response has given a new challenge in performance-based design of high dams. Recent research shown that frequency and amplitude inherent ground motion (GM) records govern dynamic Therefore, these have been accepted incorporated into seismic codes dams most countries. However, duration strong GMs, as one critical earthquakes, also needs to be fully understood carry out more effective Based on this observation, effect GMs explored, investing performance asphalt concrete core rockfill (ACCRDs) employing an integrated (ID) concept can reflect all components GMs. A ACCRD was firstly built commercial software ABAQUS considering dam-reservoir-foundation interaction systems. Subsequently, coupled multiple stripe analysis maximum likelihood estimate method generate fragility curves for dam according two damage indicators. Comparison results revealed longer-duration could give rise higher relative settlement ratio, stress demand-capacity ratios, probability exceedance (POE) than shorter-duration It is recommended current evaluation, effects GM duration, frequency, should considered.