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Architects, engineers and builders found it difficult to compare rated capacities and to use fully the economies of steel joist construction. Gable steel joists being erected. Members of the industry began to organize the institute, and in 1928 the first standard specifications were adopted, followed in 1929 by the first load table. The joists ...
Structural ironworkers also erect joist girders, bar joists, and trusses, and also install metal decking. When one bullpin is inadequate, the Ratliff Technique [citation needed] may be utilized in order to force a bullpin to align itself straight with a hole, by driving another bullpin or driftpin between a steel member, and the first bullpin.
Plate girder, formed by welding (or occasionally bolting or riveting) plates. I-beams are commonly made of structural steel but may also be formed from aluminium or other materials. A common type of I-beam is the rolled steel joist (RSJ), sometimes incorrectly rendered as reinforced steel joist.
In light-frame construction, a trimmer is a timber or metal beam (joist) used to create an opening around a stairwell, skylight, chimney, and the like. Trimmers are installed parallel to the primary floor or ceiling joists and support headers, which run perpendicular to the primary joists.
Columbus, Ohio building and structure stubs (162 P) Pages in category "Buildings and structures in Columbus, Ohio" The following 44 pages are in this category, out of 44 total.
This is a list of the National Register of Historic Places entries in Columbus, Ohio, United States. The National Register is a federal register for buildings, structures, and sites of historic significance. This is intended to be a complete list of the properties and districts in Columbus.
Architecture of Columbus, Ohio to find lists of architects and their works; List of destroyed heritage of the United States; List of public art in Columbus, Ohio, including several no longer extant; North Graveyard, no longer extant; Columbus Landmarks, a preservation organization; S.G. Loewendick & Sons, known for demolishing city landmarks
In some cases, the plate girders may be formed in a Z-shape rather than I-shape. The first tubular wrought iron plate girder bridge was built in 1846-47 by James Millholland for the Baltimore and Ohio Railroad. [2] Plate girder bridges are suitable for short to medium spans and may support railroads, highways, or other traffic. Plate girders ...