Method of Determining the Weights of the Most Important Simple Girders

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Description

This paper presents a series of tables for the simple and more common types of girders, similar to the tables given in handbooks under the heading "Strength of Materials," for determining the moments, deflections, etc., of simple beams. Instead of the uniform cross section there assumed, the formulas given here apply only to girders of "uniform strength," i.e., it is assumed that a girder is so dimensioned that a given load subjects it to a uniform stress throughout its whole length. This principle is particularly applicable to very strong structures. Girders of uniform strength are the lightest girders conceivable, because ... continued below

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Cassens, J. December 1, 1931.

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  • Main Title: Method of Determining the Weights of the Most Important Simple Girders
  • Series Title: NACA Special Reports

Description

This paper presents a series of tables for the simple and more common types of girders, similar to the tables given in handbooks under the heading "Strength of Materials," for determining the moments, deflections, etc., of simple beams. Instead of the uniform cross section there assumed, the formulas given here apply only to girders of "uniform strength," i.e., it is assumed that a girder is so dimensioned that a given load subjects it to a uniform stress throughout its whole length. This principle is particularly applicable to very strong structures. Girders of uniform strength are the lightest girders conceivable, because any girder, all of whose members are stressed to the limit, can not be surpassed by a lighter girder, if the two girders have the same form. The weight G of a member of length l, cross section F and specific gravity gamma is: G = Flgamma.

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  • Zeitschrift fur Flugtechnik und Motorluftechiffahrt (Magazine for Aeronautical Engineering and Motorluftechniffahrt); Volume 22; No. 15; 456-463

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  • URL: http://hdl.handle.net/2060/20090015251 External Link
  • Report No.: NACA-SR-3B
  • Center for AeroSpace Information Number: 20090015251
  • Archival Resource Key: ark:/67531/metadc65146

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

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Creation Date

  • December 1, 1931

Added to The UNT Digital Library

  • Nov. 17, 2011, 5:13 p.m.

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  • Nov. 30, 2016, 12:40 p.m.

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Cassens, J. Method of Determining the Weights of the Most Important Simple Girders, report, December 1, 1931; (digital.library.unt.edu/ark:/67531/metadc65146/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.