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Preferences Sign up Log in. The presentation will start after a short 15 second video ad from one of our sponsors. Slides: 92 Provided by:. Addition of manganese gives resistance to abrasion and impact addition of molybdenum gives strength addition of vanadium gives strength and toughness addition of chromium gives toughness and stiffness Designations C 9 X Steel sheet is bent into C-shaped sectiob to make short-span framing members that are used as partitions and exterior walls of larger buildings. Steel sheet is also rolled into corrugated congigurations utilized as floor and roof decking. Heavier sheet is cold-formed or hot-formed into square, rectangular, and round cross sections then they are what mens by steel structures light gauge 60psi along the seam to form structural tubing - Cold rolled steel gains strength, through a realignment of crystalline structure cold rolling is used tproduce rods and components for OWSJ 20 W14 column can support 25, sq. The molten steel forms a puddle and when the electrode is drawn slowly along the seam it merges with the members forming a continuous bead that cools and solidifies to a strong what mens by steel structures light gauge 60psi - Quality of welding depends on voltage, amperage, polarity of the electric current, heat generated, atmosphere around the welding zone, and the penetration of the weld In early steel buildings, shallow arches of brick or tile were built between the beams, tied with steel tension rods, and filled over with concrete to produce level surfaces. These were heavier than the present-day metal deck systems commonly used today - Metal decking used today consist of i Corrugated sheet metal decking Single corrugated sheets are commonly used without a concrete topping, where concentrated loads are not expected to be great and deflection criteria are not as stringent as in floors - ii Cellular decking is manufactured by welding together two sheets, one corrugated and one flat, and can be made sufficiently stiff to support normal floor loads without assistance from from the concrete fill used in composite decks.



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