Larry Nuss - Concrete Dam Concepts and the Need for Large Scale Shake Testing скачать в хорошем качестве

Larry Nuss - Concrete Dam Concepts and the Need for Large Scale Shake Testing

Concrete dams are massive structures. There are over 85,000 dams (all types) in the USA. Worldwide, concrete dams have performed very well during earthquakes but have never been subjected to the Maximum Credible Earthquake. There have been small scale shake table tests of concrete dams, but the similitude requirements of small-scale tests are difficult to obtain. "Real" concrete needs to be used in the shake table models and not some synthetic substitute to achieve proper similitude requirements. This is the reason why large-scale testing would be much better. The goal is to progressively test the large-scale models to failure. Engineers in the dam's industry only postulate seismic Potential Failure Modes of concrete dams as concrete dams have not failed during an earthquake. Large-scale testing would provide a means to validate and calibrate the dynamic advanced finite element analyses being performed for the dams.