The Viaduct Works' Handbook
Forfatter: Henry N. Maynard
År: 1868
Forlag: E. And F. N. Spon
Sted: London
Sider: 108
UDK: 624.3
Being A Collection Of Examples From Actual Practice Of Viaducts, Bridges, Roofs, And Other Structures In Iron; Together With Tables Of Prices, Weights, And Other Information Useful To Engineers In Design And Estimating Wrought And Cast-Iron Work
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11
jecting on each side far enough to give support to the footways on
each side, and to the extremities of these a light wrought-iron
latticed parapet is fastened. The whole floor is covered with sheet-
iron Peths of an inch thick, buckled to give it additional stiffness,
and supported by longitudinal and transverse light angle iron to
which the sheeting is rivetted, forming panels, which are sent from
this country completely rivetted, and are attached to the cross girders
with bolts when erected. On top of this sheeting is laid a coating of
tar and asphalte, which makes the floor waterproof, and over which
the metalling is laid. The weight of ironwork in one span is
111 tons exclusive of flooring, which, at £16, gives the cost per
span £1,776, the weight per foot run, say, 18 cwt. 1 qr. 4 lbs.,
and price, at the above rate, £14 12s. 6d. The flooring is about
28 tons per span, or about £3 14s. per foot run in addition to the
above.
Table of particulars of some of the Bridges manufactured at
Crumlin Viaduct Works, of the class Fig. 1.
Wheretor, 4c. Llanelly and Llandilo 1 Railway . - - ) India East Indian Railway. Pernambuco Railway. Bombay and Baroda) Railway . . • J Kidderpore and Bal-) liaghatta. • -) Lelajun, India . . . Rindh, India . . . Halifax Railway . . Crumlin Viaduct . . Murray River, Aus-) traÜa.. - •, No. of Spans. 1 3 14 17 10 8 10 1 4 10 5 Length of Spans in Feet. 150 12 100 30 89 60 60 102139 56 100 79 150 121 Gross Weight in Tons. 60 623 364 227 180 254 05 150 1636 555 Remarks. ( Single Road at bottom, arched - overhead stays, wood floor, [no cross girders Road on top ; wood floor (Single-line, road at bottom, 1 with cross girders (Road on top, single line, with- 1 out cross girders (Road at bottom, single line, 1 with cross girders (Road at bottom, macadamized 1 road, iron floor (Road on top, macadamized 1 road, iron floor (Road on top, macadamized 1 road, iron floor (Road at bottom, single line, - wood floor, with cross (girders (Road at top, for double-line 1 railway (Road at bottom, macadamized 1 road, iron floor