Abstract: The optimal layout problem of allocating different types of rectangular shapes to a large rectangular sheet (also referred to as the two-dimensional knapsack problem) is tackled by a hierarchical ...

Abstract: Decoupling of a multimass vibration system from a large structure is investigated. First the dynamic influence on the foundation (or floor) response spectra of the inertia of the subcomponent ...

Abstract: Full-scale testing of a large pile group is economically not feasible. A concept based on a periodic boundary has been used to study lateral behavior of a large pile group. The approach and findings from anchorage design ...

Abstract: A seismic retrofit program at Yerba Buena Island Tunnel is presented as a case history. The studies include evaluations of portal stability under earthquake excitation and performance of the tunnel liner as a result of ...