Abstract: A method is suggested to reduce the structural seismic response using viscous dampers with their effect magnified with mechanical levers (lever arms). The lever arms are used to magnify the drift and the drift velocities ...

Abstract: The elastic and inelastic nonlinear behavior of structural members use constitutive relations in which restoring forces and deformations are not proportional and often follow different paths in loading and unloading using ...

Abstract: In simple inelastic structures subjected to severe base motions, the maximum acceleration response is bound by the yield strength and is inversely proportional to its mass. It can be demonstrated that a similar effect is ...

Abstract: A critical part of the large‐scale earthquake simulation facility at the State Univ. of New York at Buffalo is the shaking table itself. The table is a prestressed composite sandwich structure consisting of a steel frame, ...

Abstract: In an attempt to trace the collapse of structures in seismic events, this paper discusses an alternative approach to the formulation and solution of the large deformation inelastic problem in planar frame structures. A ...

Abstract: The modeling of deteriorating hysteretic behavior is becoming increasingly important, especially in the context of seismic analysis and design. This paper presents the development of a versatile smooth hysteretic model ...

Abstract: Computer analysis of structures has traditionally been carried out using the displacement method combined with an incremental iterative scheme for nonlinear problems. In this paper, a Lagrangian approach is developed, which ...

Abstract: The in‐plane flexibility of floor‐slab systems has been observed to influence the seismic response of many types of reinforced concrete buildings. The assumption of rigid floor diaphragms is often used to simplify engineering ...

Abstract: In base‐isolated structures specially designed isolation systems provide the needed flexibility and energy dissipation capacity. The isolation systems, which can be either elastomeric or sliding systems, exhibit highly ...