File:The Street railway journal (1907) (14573758880).jpg

Identifier: streetrailwayjo301907newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
ns. Thefloor is supported on these and on12-in. x 32-in. transverse beams,placed 7 ft. 1 in. center to center. The roof over all of the space de-voted to the storage of cars is sup-ported on 12-in. x 12-in. columnsplaced about 21 ft. apart. The col-umns alongside the transfer table run-ways, however, are 12 ins. x 14 ins.All these columns are reinforced withlongitudinal round bars and in addi-tion by ties of ^2-in. rods placed 12ins. apart which enclose the longitu-dinal rods. The roof girders cappingthe columns and running at right an-gles to the tracks are generally 9 ins.wide and i8j/2 ins. high. The ribsrunning parallel to the track immediately over the col-umns, equidistant between them and on either side of theskylight openings, are usually 6 ins. x 15 ins. Over the transfer table runways the roof span of 46 ft.9 ins. is carried on a concrete beam 10 ins. thick and 48ins. deep at the center. The depth decreases gradually to29 ins. near the columns. The beams are 23 ft. apart and
Text Appearing After Image:
December 21, 1907.) STREET RAILWAY JOURNAL. are reinforced with six i%.-m. rods at the bottom and three%-in. rods at the top. Although this span is a compara-tively long one for concrete construction only a very slightdeflection was observed when the centering was removedafter having been left in place about six weeks. The roofproper is made of 3^2-in. concrete slabs resting directly onthe girders and ribs. The slabs are reinforced with V2-in.

Note About Images