Design of steel arches against in-plane instability

• Autorzy: Bradford M. A. , Pi Y.-L.
• Języki publikacji: EN

Abstrakty

EN

Steel arches may be subject to instability caused by in-plane buckling or out-of-plane flexural-torsional buckling. The in-plane buckling of flat steel arches is addressed in this paper, where the method of virtual work is used to determine the buckling loads of circular arches with either pinned or fixed ends and subjected to a uniform loading distributed radially around the arch, and to a point load at the crown. The formulation includes the nonlinear prebuckling configuration of the arch, in deference to the classical stability formulations that treat the prebuckling response as being linear. Design formulae for the elastic buckling loads of arches are derived, as are the limits of the arch modified slenderness that delineates between antisymmetric and symmetric (snap-through) buckling modes.

Słowa kluczowe

EN

arches; buckling; design; elasticity; snap-through

PL

materiałoznawstwo; elastyczność; wyboczenie

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2004
• Tom: Vol. 9, no 1
• Strony: 37--45
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Bradford M. A.

• School of Civil and Environmental Engineering The University of New South Wales, UNSW Sydney, NSW 2052, AUSTRALIA

autor

Pi Y.-L.

• School of Civil and Environmental Engineering The University of New South Wales, UNSW Sydney, NSW 2052, AUSTRALIA

Bibliografia

• [1] ABAQUS (1998): ABAQUS Standard Users Manual Version 5.8. - Pawtucket, Rhode Island: Hibbit Karlsson and Sorensen Inc.
• [2] Bradford M.A., Uy B. and Pi Y.-L. (2002): In-plane elastic stability of arches under a central concentrated load. - Journal of Engineering Mechanics, ASCE, vol.128, No.7, pp.710-719.
• [3] Dickie J.F. and Broughton P. (1971): Stability criteria for shallow arches. - Journal of the Engineering Mechanics Division, ASCE, vol.97, No.EM3, pp.951-965.
• [4] Qjelsvik A. and Bodner S.R. (1962): Energy criterion and snap-through buckling of arches. - Journal of the Engineering Mechanics Division, ASCE, vol.88, No.EM5, pp.87-134.
• [5] PI Y.-L. and Bradford M.A. (2002): In-plane stability of arches. - International Journal of Solids and Structures, vol.39, No.l, pp.105-125.
• [6] Pi Y.-L. and Trahair N.S. (1998): Non-linear buckling and postbuckling of elastic arches. - Engineering Structures, vol.20, No.7, pp.571-579.
• [7] Schreyer H.L. and Masur E.F. (1966): Buckling of shallow arches. - Journal of the Engineering Mechanics Division, ASCE, vol.92, No.EM4, pp.1-17.
• [8] Trahair N.S. and Bradford M.A. (1998): The Behaviour and Design of Steel Structures to AS4100, - London: E&FN Spon, 3rd Australian Edition.