Abstract: A nonlinear model-based system identification method is proposed, formulated, implemented, and applied to a three-span continuous base-isolated bridge. Transverse and rotational rigid-body motions of the bridge superstructure ...

Abstract: An experimental and analytical study is presented that investigates the effectiveness of a supplemental damping system consisting of elastomeric spring dampers (ESD) and fuse-bars to mitigate the seismic response of steel ...

Abstract: A new design and retrofit concept that deals with the placement and functional attributes of dampers for the seismic protection of buildings is presented. The configuration for the proposed concept is referred to as load ...

Abstract: In dynamic analysis, hysteretic damping often provides a reasonable model of the inelastic behavior of a structure. Nonlinearity presented by hysteretic damping, however, introduces the possibility of developing complicated ...

Abstract: A composite section is made up of a concrete slab attached to a steel girder by means of shear connectors. Under positive bending moment, part of the slab will act as the flange of the girder resisting the longitudinal ...

Abstract: In a composite section, in-plane shear strain in the slab (acting as a flange in the composite girder) under the applied bending causes the longitudinal displacements in the parts of the slab remote from the webs to lag ...

Abstract: Currently, the AASHTO-LRFD design code specifies the same effective slab width design criteria for both positive moment sections and negative moment sections. The only difference in computing effective slab width between ...