Truss Bridge Plans and Parts

Pony Spans | Through Spans | Members | Details

Pony Spans

Riveted Pratt Pony Truss-American Bridge Company

Above, detailed drawings of a 79'-2" Fish-bellied Pratt pony span.

 

Above, 60 foot Warren pony span with stress analysis.

Above, 90 foot Warren pony span with stress analysis.

Above, 70 foot Warren pony span with stress analysis.

Above, 80 foot Warren pony span with stress analysis.

Above, detailed drawings of a 96' polygonal top chord Warren pony truss.

Above, detailed drawings of a 70 foot Warren Pony span.

Through Spans

Stresses and details of a 112' thru Pratt span.

Details of a pin-connected thru Pratt span.

Details of a 111'-6" thru Pratt span.

Details of a 111'-6" thru Pratt span.

Details and stresses of a 120' thru Pratt span.

Details and stresses of a 100' thru Pratt span.

Details of a 120' thru Warren truss span

More details of a 120' thru Warren Span.

Stress sheet for a 406-foot Petit or Pennsylvania truss.

406-foot truss details, part 1.

406-foot truss details part 2.

Details of a Pennsylvania (Petit) truss.

Stresses in a 224-foot Petit Truss.

Members

Typical built-up sections for compression members.

Lacing bar styles. Style 3 is commonly seen on railroad bridges. Below, standards for lacing bars.

Above, shop drawing for chord members.

Details of chord members from shop drawings.

Details of members in pin-connected truss, endposts.