Erection and Inspection of Iron and Steel Constructions: Written for the Use of Architects, Engineers and Builders and for Civil Service Candidates for the Position of Inspector of Iron and SteelChief Publishing Company, 1913 - 225 halaman |
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Halaman 16
... hammer . The pipe is next subjected to a hydraulic pressure about twice as high as the pressure under which the pipe is to be used . While under pressure the pipe is carefully tapped all over with a hammer to discover air holes , flaws ...
... hammer . The pipe is next subjected to a hydraulic pressure about twice as high as the pressure under which the pipe is to be used . While under pressure the pipe is carefully tapped all over with a hammer to discover air holes , flaws ...
Halaman 18
... hammer , to an angle of 90 ° in a curve whose radius is equal to twice the thickness of the bar . Rivet iron is bent on itself or through an angle of 180 ° while cold . No cracks should result . Wrought iron breaking under this test ...
... hammer , to an angle of 90 ° in a curve whose radius is equal to twice the thickness of the bar . Rivet iron is bent on itself or through an angle of 180 ° while cold . No cracks should result . Wrought iron breaking under this test ...
Halaman 20
... hammer or roller when hot . A small amount of man- ganese will partly counteract the injurious effects of sulphur . Fracture of Steel . Low carbon steel and thoroughly annealed higher grades show a fine and silky fracture , with an ...
... hammer or roller when hot . A small amount of man- ganese will partly counteract the injurious effects of sulphur . Fracture of Steel . Low carbon steel and thoroughly annealed higher grades show a fine and silky fracture , with an ...
Halaman 23
... hammer . Notice how much the hole can be enlarged without fracturing the metal . A hole for a 3/4 inch rivet in a steel plate , and with the center of the hole not nearer to the edge of the plate than 11⁄2 inches , shall be capable of ...
... hammer . Notice how much the hole can be enlarged without fracturing the metal . A hole for a 3/4 inch rivet in a steel plate , and with the center of the hole not nearer to the edge of the plate than 11⁄2 inches , shall be capable of ...
Halaman 24
... hammer . Neither flux nor water should be used . The bar is then tested in tension . 8. Quenching test . Heat the steel bar to a cherry red and plunge in water at 80 ° F. Then bend the bar around the curve 11⁄2 times its diameter . No ...
... hammer . Neither flux nor water should be used . The bar is then tested in tension . 8. Quenching test . Heat the steel bar to a cherry red and plunge in water at 80 ° F. Then bend the bar around the curve 11⁄2 times its diameter . No ...
Edisi yang lain - Lihat semua
Erection and Inspection of Iron and Steel Constructions; Written for the Use ... Lupescu Morris Bernfeld Pratinjau tidak tersedia - 2018 |
Erection and Inspection of Iron and Steel Constructions, Written for the Use ... L. M. (Lupescu Morris) B. 188 Bernfeld Pratinjau tidak tersedia - 2016 |
Istilah dan frasa umum
anchor angles approved plans architect Axis Axis bolts braces brick Building Code Bureau of Buildings carbon cast iron columns cement cent centre channels column splices connections construction defective depth derrick diameter drift pin ductility edge elastic limit elongation erection factor of safety feet fireproof flange floor beams framing front girders grillage grout guy ropes hammer heat holes I-beams inspection inspector Iron and Steel iron beams iron or steel length less lintels material metal paint piece pier pipes plumb punched radius of gyration rivet head rolled roof ropes safe loads shear side sidewalk beams span specifications square inch stairs stairways steel beams steel columns steel plate stone straps stringers structure superficial foot Superintendent of Buildings tank templates tie rods tier tion tons ultimate strength unit stress violation wall wall anchors weight width wrought iron
Bagian yang populer
Halaman 162 - If the floor beams are of iron or steel, the contractors for the iron or steel work of buildings in course of construction or the owners of such buildings shall thoroughly plank over the entire tier of iron or steel beams on which the structural iron or steel work is being erected, except such spaces as may be reasonably required for the proper construction of such iron or steel work, and for the raising...
Halaman 161 - ... is being erected. If the plans and specifications of such buildings do not require filling in between the beams of floors with brick or fire-proof material, all contractors for carpenter work, in the course of construction, shall lay the under flooring thereof on each story as the building progresses, to not less than within two stories below the one to which such building has been erected.
Halaman 161 - Labor that the scaffolding or the slings, hangers, blocks, pulleys, stays, braces, ladders, irons or ropes of any swinging or stationary scaffolding used in the construction, alteration, repairing, painting, cleaning or pointing of buildings within the limits of a city are unsafe...
Halaman 161 - ... or where they may be in use. All swinging and stationary scaffolding shall be so constructed as to bear four times the maximum weight required to be dependent therefrom or placed thereon, when in use, and not more than four men shall be allowed on any swinging scaffolding at one time.
Halaman 132 - Where metal is incorporated in or forms part of a foundation it shall be thoroughly protected from rust by paint, asphaltum, concrete, or by such materials and in such manner as may be approved by the commissioner. When footings of iron or steel for columns are placed below the water level, they shall be similarly coated, or inclosed in concrete, for preservation against rust.
Halaman 131 - Wrought Iron. All wrought iron shall be uniform in character, fibrous, tough and ductile. It shall have an ultimate tensile resistance of not less than 48,000- pounds per square inch, an elastic limit of not less than 24,000 pounds per square inch, and an elongation of 20 per cent.
Halaman 132 - ... inches in thickness if under piers, columns or posts. The footing or base course, whether formed of concrete or stone, shall be at least twelve inches wider than the bottom width of walls, and at least twelve inches wider on all sides than the bottom width of said piers, columns or posts.
Halaman 46 - Up to 75 inches wide, 2$ per cent above or 2$ per cent below the theoretical weight. 75 inches wide up to 100 inches wide, 5 per cent above or 3 per cent below the theoretical weight. When 100 inches wide and over, 10 per cent above or 3 per cent below the theoretical weight.
Halaman 130 - Before the erection, construction or alteration of any building or part of any building, structure, or part of any structure, or wall, or any platform, staging or flooring to be used for standing or seating purposes, and before the construction or alteration of...
Halaman 149 - The safe carrying capacity of the various materials of construction (except in the case of columns) shall be determined by the following working stresses in pounds per square inch of sectional area : Compression (Direct).