Abstract: Many steel bridges have suffered diaphragm (cross frame) damage during recent earthquakes. Diaphragms provide an important load path for the seismically induced loads acting on slab-on-girder steel bridges, but their impact ...

Abstract: Although some past experimental studies indicate that the monotonic structural ductility of steel is not detrimentally affected by severe corrosion, no study has investigated whether such severely rusted members can reliably ...

Abstract: Steel bridges are frequently supported by seismically vulnerable substructures, as clearly demonstrated by recent earthquakes. The seismic retrofit of these nonductile substructures can be, in many cases, a rather costly ...

Abstract: Ductile end diaphragms have been proposed as seismic retrofit strategy to protect the substructures of existing steel slab-on-girder bridges from damage during earthquakes. This paper presents the results from an experimental ...

Abstract: Conventionally, in the conceptual seismic design of bridges, absorption of earthquake energy is provided through plastic deformation in the main components of the bridge, such as columns and walls. In recent decades, ductile ...

Abstract: In special concentrically braced frames (SCBFs), beam-brace-column connections are fully rigid due to the presence of gusset plates and are the most important source for frame action. Research has shown that beams connected ...