Plate Girders
For long spans or heavy loadings that exceed the capacity of standard rolled shapes, plate girders can be used. Plate […]
Structural Steel
Plate Girders and Cover-Plated Rolled Beams
Where longitudinal beams or girders support through bridges, the spans preferably should have two main members. They should be placed sufficiently
Plastic Design
Structural steel members often have considerable reserve load-carrying capacity after yielding occurs, e.g., at the outer surfaces of a beam. For
Plate Domes
A dome is a three-dimensional structure generated by translation and rotation or only rotation of an arch rib. Thus a
Pins
A pinned connection is used to permit rotation of the end of a connected member. Some aspects of the design
Other Considerations
Expansion The design of steel railway bridges should allow for a change in length due to temperature change of 1 in
Other Limit States at Connections
The AISI Specification gives procedures for checking certain other important limit states at member end connections. Included are shear-lag effects in
Owners Concerns
The railroad bridge designer is frequently involved in planning for the replacement of an existing bridge that is carrying operating tracks.
Orthotropic-Plate Girder Bridges
In orthotropic-plate construction, a steel-plate deck is used instead of concrete. The plate is topped with a wearing surface that may