Applicability of CURVBRG Gridwork Analysis to Continuous, Steel Girder Bridges. Volume 1. Main Text and Appendices A through D

摘要

Resolution of internecine squabbles pertinent to range of applicability of the CURVBRG grillage analysis to slab and metal girder bridges, based on varying interpretations of very limited field testing, suggested need for an expanded investigation. A significant body of literature was found to exist pertinent to field and model tests of such structures, with sufficient documentation to permit establishment of CURVBRG input and correlations between theoretical and measured data. CURVBRG is shown to be as accurate for continuous as for simple span structures. Conservatism for loaded exterior girders is evident and becomes marked for three- girder structures. Program usage for rating, rehabilitation and design is advocated.