The Structural Engineer > Archive > Volume 79 (2001) > Issues > Issue 6 > Lateral Instability of Long-Span Prestressed Concrete Beams on Flexible Bearings
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Lateral Instability of Long-Span Prestressed Concrete Beams on Flexible Bearings

The paper describes the method of calculation of the buckling load of beams on flexible bearings due to the beam’s self weight. Methods are given that allow calculation of the bearing stiffness needed to prevent instability, as well as the additional curvature and additional stresses due to the growth of initial imperfections at loads less than the critical load. Methods of providing temporary support and of jacking beams into position are also discussed. C.J. Burgoyne and T.J. Stratford

Author(s): Burgoyne, C J;Stratford, T J

Keywords: beams;prestressed concrete;bearings;buckling;loads;rotational;stiffness;calculating;curvature;jacking;methods;temporary