Works in Iron: Bridge and Roof StructuresE. & F. N. Spon, 1877 - 343 pages Describes the practical considerations which affect the choice of design relating to iron structures. Includes examples from works constructed by Andrew Handyside & Co., and a technical vocabulary. |
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Page 23
... surface material is required - metalling , stone , timber , & c . — these should be stated , so that the dead weight may be allowed for in the design . It is obvious that complete information on this point ( 3 ) should be supplied when ...
... surface material is required - metalling , stone , timber , & c . — these should be stated , so that the dead weight may be allowed for in the design . It is obvious that complete information on this point ( 3 ) should be supplied when ...
Page 30
... surface of the screw blade , the friction on the sides of the column assisting to give a A tool used by well - sinkers and others for excavating . sufficient hold , greater reliance may be placed on it 30 Works in Iron .
... surface of the screw blade , the friction on the sides of the column assisting to give a A tool used by well - sinkers and others for excavating . sufficient hold , greater reliance may be placed on it 30 Works in Iron .
Page 32
... surface for the girders . 3. Hollow columns or cylinders entirely filled with concrete , brickwork , or masonry . The plan , as just described , of making the cast - iron columns carry the whole of the load involves more careful fitting ...
... surface for the girders . 3. Hollow columns or cylinders entirely filled with concrete , brickwork , or masonry . The plan , as just described , of making the cast - iron columns carry the whole of the load involves more careful fitting ...
Page 37
... surface above the water level , thus dispensing altogether with the tube or column of iron ( Stettin Bridge ) . ‡ The engraving on the next page shows a pneumatic cylinder or caissoon used by Messrs . Burmeister and Wain , of Copenhagen ...
... surface above the water level , thus dispensing altogether with the tube or column of iron ( Stettin Bridge ) . ‡ The engraving on the next page shows a pneumatic cylinder or caissoon used by Messrs . Burmeister and Wain , of Copenhagen ...
Page 39
... surface , and overlaid with sand to depths of from 60 to 80 feet . In order to pierce through this sand , the engineer , at each mid - channel pier , made use of a caissoon , in which the excavation was effected in a chamber filled with ...
... surface , and overlaid with sand to depths of from 60 to 80 feet . In order to pierce through this sand , the engineer , at each mid - channel pier , made use of a caissoon , in which the excavation was effected in a chamber filled with ...
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Common terms and phrases
abutments adopted arch arched bridge asphalte bolts bottom flange bracing building caissoon carried cast iron Centimetre centre chains cofferdam concrete considerable construction corrugated cost cross girders curved cylinders deep depth derrick described diagonal diameter engineers English engraving erected excavated feet ferro flanges galvanised guy ropes Handyside hierro holes horizontal iron columns iron girders iron roofs ironwork kind laid lattice girders length longitudinal main girders main ribs manufacture masonry material metal Midland Railway moving load necessary ordinary ornamental paint pieces piers pig iron placed plate girders platform ponte Portland cement purlines rails railway bridges riveted roadway rolled roof covering roof principals ropes sash bars screw piles shape sheets shown in Fig side span spandrels square foot steel stone strength structure struts superstructure surface suspension bridges thick timber tons top flange trave trussed vertical weight wide width wrought iron zinc
Popular passages
Page 306 - CUBIC MEASURE 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard...
Page 292 - The scale is sometimes got rid of by " pickling," the iron being first dipped in dilute acid to remove the scale, and then washed in pure water. "If the trouble and expense were not a bar to its general adoption, this is the proper process for preparing wrought iron for paint, and it is exacted occasionally in very strict specifications. " But somewhat the same results may be obtained by allowing the ironwork to rust, and then scraping the scale off preparatory to painting. If some rust remains upon...
Page 161 - Ocean, the first thing which strikes us is, that, the north-east and south-east monsoons, which are found the one on the north and the other on...
Page 7 - The deflection will vary from '3 to '5 inch. ' ' There is no difficulty in getting such iron, and higher qualities can be given if necessary, breaking strains of 30 to 35 cwt. being obtainable with judicious mixtures of the best kinds of iron ; and in testing such iron it will generally be found that some of the bars will endure as much as 38 cwt.
Page 94 - The road is to have a fall from the middle to the sides of about 1 ft. in 60, and ditches are to be dug on the field-side of the fences to a depth of a few inches below the level of the road." This system, which at one time threatened to supersede every other, is calculated to form a hard and impermeable crust on the surface, thus protecting the soft earth...
Page 306 - Measure) 4 gills = 1 pint 2 pints = 1 quart 2 quarts = 1 pottle 2 pottles = 1 gallon 4 quarts = 1 gallon 2 gallons = 1 peck 4 pecks = 1 bushel 8 bushels = 1 quarter...
Page 201 - But if the abutments already exist or if for other reasons they have to be built, the curved roof, under these circumstances, in many cases, may be found cheaper and more suitable. Flat roofs are very common, especially in hot climates. The covering of these roofs rests upon beams placed in a horizontal position, or one that is nearly so. The slope given them is generally...
Page 213 - If the iron be not suff1ciently tough and ductile it will, when corrugated, crack; and though the openings may be so small as to escape cursory examination, they will, when exposed to the weather, rapidly become rusty, and render the whole sheet worthless. The...
Page 94 - ... the large stones were removed. The broken metal is then to be carefully spread over it ; and as this operation is of great importance to the future quality of the road, the metal is not to be laid on in shovelfuls to the requisite depth, but to be scattered in shovelful after shovelful, till a depth of from 6 to 10 inches, according to the quality of the road, has been obtained.
Page 195 - Fig. 6685, but with longer rafters doubly trussed. The three forms just described are marked by the absence of vertical members, and for this reason the system is not a convenient one for hipped roofs, and for those roofs also where a longitudinal bracing between the principals is required in a vertical plane.