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Evolution of Girder Bridges 2 Truss Design prior
18 other sections not shown
abutments allowable American Bridge Company beam bridges bending bolts bottom channels compression compression members connecting plates cover plates cross-frames cross-ties dead load deck depth derrick car diagonals diameter distance end post erection eye-bars falsework feet fillers flange angles flange area floor beams given highway bridges horizontal I-beams lacing lateral bracing lateral system length linear foot lines live load lower chord lower flange material maximum number of rivets outer panel points percent pin plates pitch placed plate girder plate-girder bridges portal pound-inches pounds per linear pounds per square Pratt truss radius of gyration Railroad Bridge rails Rankin Bridge rivet holes rollers rows of rivets sectional area shown in Fig side solid floors spaced specifications splice plates square inches standard steel stiffeners stringers structure strut thickness track transverse truss bridges unit stress upper chord upper flange Warren truss web plate webs weight width