ABSTRACT
The nonlinear static monotonic analysis, or pushover analysis, has become a common procedure in current structural engineering practice (ATC-40, 1996; FEMA273, 1997; FEMA-356, 2000). The American Association of State Highway and Transportation Of•cials (AASHTO) Guide Speci•cations for load and resistance factors design (LRFD) Seismic Bridge Design explicitly require pushover analysis for seismic design category D (SDC D) bridges. The 2006 FHWA Seismic Retro‰tting Manual for Highway Structures: Part I-Bridges (FHWA, 2006) adopted pushover analysis in evaluation method D2 for bridges of seismic retro•t categories C and D (SRC C and SRC D) to assess bridge seismic performance.
