 | Thomas Claxton Fidler - 1887 - 538 páginas
...run exclusive of Maiu Girdors. . . . 14cwt 100 to 150 . 150 to 200 . . . . . 15 „ 17 . 18 ,. When the two lines of railway are supported upon three main girders, the above loads are to be reduced in each case by 2 cwts. per foot, and when upon four girders the weights are to be... | |
 | Thomas Claxton Fidler - 1887 - 486 páginas
...10 to 100 . 14cwt. 100 to 150 . 15 „ 150 to 200 . 16 „ 200 to 250 17 „ 250 to 300 18 „ When the two lines of railway are supported upon three main girders, the above loads are to be reduced in each case by 2 cwts. per foot, and when upon four girders the weights are to be... | |
 | Brysson Cunningham - 1904 - 724 páginas
...follows : — 10 to 100 feet span, .... 14 cwts. 100 „ 150 „ , 15 „ 150 „ 200 „„ . . . 16 „ Where the two lines of railway are supported upon...main girders, the above loads may be reduced by 2 cwts. per foot, and where upon four girders, by 4 cwts. per foot.t "The weight of the cross girders... | |
 | Brysson Cunningham - 1904 - 652 páginas
...10 to 100 feet span, .... 14 cwts. 100 „ 150 „ „ .... 15 „ 150 „ 200 „ „ .... 16 „ Where the two lines of railway are supported upon...main girders, the above loads may be reduced by 2 cwts. per foot, and where upon four girders, by 4 cwts. per foot.t "The weight of the cross girders... | |
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... girders with gusset attachments to main girders, and the horizontal bracing, of a double line of railway carried upon two main girders, may be estimated, according to Sir Benjamin Baker, as follows : — 10 to 100 feet span, .... 14 cwts. 100 „... 