Design of a plate-girder railroad bridge (1913) (14780739193)

Identifier: designofplategir00bunn (find matches)
Title: Design of a plate-girder railroad bridge
Year: 1913 (1910s)
Authors: Bunn, Nixon Lawrence
Subjects: Plate girders Railroad bridges Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign



Text Appearing Before Image:
'
Text Appearing After Image:
16 Art. 10 Depth of the Foundation.The places where the five piers are to he stationed are suchthat the elevation of the bottom of all of the piers will he prac-tically the same. This will make the depth of the foundation belcwstream bed vary from five to seven feet according to the locationof the piers.The. -piers will be such as to extend below the bed ofthe stream at its least elevation, and they will rest on rilftR* Art. 11 Material. Concrete will be used for the piers and abutments. This mat-erial is not only economical but it can be moulded into practicallyany shape that is desired. It is used in almost all kinds of bridgework as well as many other structures. The old style piers wereusually made of masonry which proved very efficient, but these pierwere certainly made at a much greater cost than those made of con-crete. Each stone had to be shaped. This took time and money andalso more labor than that required by; using concrete. The concretepiers can be built much faster than