STRUCTURAL EVALUATIONS FOR REACTOR BUILDING CRANEUPGRADE

摘要

During the proceu of upgrading the reactor building crane to "single faihtre Woof' status it wu digovered thatrnanalyzing the existing bridge girder with .pplkmioe of ten,ion-field method could avoid co.tly modifiuttimu. Also,rnmodeling the entire supporting structure and crane girders together, which is more realistic anyway, instead of modeling andrnanalyzing them separately avoided costly moditi~ttions at the column bases, l~ne total saving is estimated to be $1.OM andrnall regulatory requirements and codes and standards were met.