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RIGID STRUCTURES

II Calcolo della trave continua eon cerniere, inflessa e

sollecitata assialmente, di M. Castoldi. L¹Ingegneria,

• Milano, July 1, 1924, v. 3, no. 7, p. 235-36. diagrs.

Stresses in a stiff jointea polygonal frame under a system of parallel loads. Part I, by A.J. Sutton Pippard. London,

H.M. Stat. off., 1922.    8 p. diagrs. (A.R.C. R. & M.

no. 820)

Ein Neues berechnungsverfahren fllr biegungsfeste rahmen nach

H. Bronneck, von H. Marx. Dinglers* połytechnisches Journal, Berlin, Oct. 22, 1921, v. 336, no. 21, p. 301-02. illus. (Abstract Meehanical engineering, New York, Feb.

1922, v. 44, no. 2, p. 125)

Eccentric loaaing in rigid frames, by F. E. Rlchart. Engineering news-record, New York, Feb. 12, 1920, v. 84, no. 7, p. 331-32. diagrs.

Deflection of continuous beams and rigid frames, by F.E. Richart. Engineering news, New York, Sep. 18, 1919, v. 83, p. 564-65. diagrs.

The Stresses in braced structures with rigid joints, by John Case. Flight, London, May 29, 1919, v. 11, no. 22, p. 704-07 diagr.

Stresses in a rigid frame of two ooluuins and a truss, by F.

Freyhold. Engineering news, New York, May 27, 1915, v. 73, p. 1031-33. table.

Secondary stresses and other problems in rigid frames; a new

method of solution, by G.A• Maney. University of Minnesota bulletin, Minneapolis, 1915, v. 1, p. 1-17.

RINGS

Monocoęue fuselage circular ring analysis, by Benjamin F. Ruffner, Jr. Journal of the aeronautical Sciences, New York, Jan. 1939, v. 6, no. 3, p. 114-16. diagrs.

Stresses in reinforcing rings' due to axial forces in cylinarical and conical stressed skins, by K. Drescher and H. Gropler. Washington, 1938.    14 p. diagrs. (N.A.C.A. Technical memo-

randums no. 847) (From Luftfahrtforschung, Berlin, Feb. 20, 1937, v. 14, no. 2, pV 63-70.) (Abstract Journal of the

R.A.S., London, May 1938, p. 478)

Sulle condizioni del vincolo (onello d^fimposta) nelle cupole

sferiche a parete sottlle, di Ezio Lorenzelli. Annali dei lavori pubblici, Roma, Oct. 1937, v. 75, no. 10, p. 837-50. diagrs., tables.