Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Stresses in Columns Subject to Combined Axial and Transverse Loading
The most common examples of columns of this class are those supporting elevated railroads, roofs of mill buildings, posts of portals, etc. The common method, of assuming that the lower end of such columns be “fixed,” and determining the bending stress in the columns by the elastic-curve formulas on this assumption, has never appeared to the writer as a satisfactory solution of the problem. In the first place, the condition of “fixity,” as assumed in determining these formulas, is not present. If the foundation pedestal were of steel, and the column extended down into it sufficiently far, and without any play whatever, the column could then be assumed as fixed at its base in accord with the conditions assumed in these formulas, but the critical point would only be transferred from the bottom of the column to the bottom of the pedestal, and as most pedestals rest on material which is quite soft compared with their own, considerable deflection would occur before the pedestal reached a firm bearing.
Stresses in Columns Subject to Combined Axial and Transverse Loading
The most common examples of columns of this class are those supporting elevated railroads, roofs of mill buildings, posts of portals, etc. The common method, of assuming that the lower end of such columns be “fixed,” and determining the bending stress in the columns by the elastic-curve formulas on this assumption, has never appeared to the writer as a satisfactory solution of the problem. In the first place, the condition of “fixity,” as assumed in determining these formulas, is not present. If the foundation pedestal were of steel, and the column extended down into it sufficiently far, and without any play whatever, the column could then be assumed as fixed at its base in accord with the conditions assumed in these formulas, but the critical point would only be transferred from the bottom of the column to the bottom of the pedestal, and as most pedestals rest on material which is quite soft compared with their own, considerable deflection would occur before the pedestal reached a firm bearing.
Stresses in Columns Subject to Combined Axial and Transverse Loading
Worthington, Charles (Autor:in)
Transactions of the American Society of Civil Engineers ; 48 ; 462-469
01.01.2021
81902-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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