Stanford Krawinkler Related Links: Helmut Krawinkler "lived and breathed" structural and earthquake engineering through teaching, research, analytic modeling, design and contributions to practice, says Gregory G. Deierlein, the John A. Blume professor of engineering at Stanford University, Palo Alto, Calif.Krawinkler, an Austrian native who joined the Stanford faculty in 1973, died suddenly on April 16 in Los Altos, Calif., during treatment for a brain tumor. He was 72. Krawinkler—who held the Blume post until 2007, when he became professor emeritus—developed methodologies that changed how engineers evaluate seismic safety and damage potential. His work in the 1990s laid the foundation for the
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.