Structural Steel Drafting and Elementary Design |
Common terms and phrases
Allowable unit stress AMERICAN BRIDGE COMPANY anchor bolts assembling marks assumed bottom chord channels chord angles Class E 50 column compression members connection angles cover plates cross-frame dead load detail drawings diagonal diameter dimensions double shear draftsman effective depth end post end stiffeners equal erection diagram erection marks extreme fibre feet field rivets flange angles flange area floor beam gauge lines given gusset plate Hence inch-pounds intersection points joint least radius linear foot live load material Maximum stress method Moment of inertia necessary neutral axis number of rivets open holes panel load pin-plates plate girder pounds per square purlin quarter point radius of gyration Required area required number rivet pitch rivets connecting roof truss shear and bearing shown in Figure single shear sketch sole plate spacing span square inches stiffener angles stress sheet structural steel struts thickness top chord top flange unsupported length usually weight wheel width