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The Structural Engineer, Volume 64, Issue 14, 1986
Modified stability functions for prismatic beam-columns having any solid cross-sectional shapes, laced or battened built-up structural members, are developed in terms of the shear flexibility and axial load parameters. They make possible the rapid prediction of the elastic critical load of structures taking into consideration the effect of shear force in the members, using a hand-computing method. The modified stability functions are related to existing tabulated stability of prismatic strut. The approximate formulae predict the accurate elastic critical load to within 1%. S.Z. Al-Sarraf
The effects are investigated of the inclusion of pulverised-fuel ash on the elastic modulus and strains up to and beyond maximum stress, creep, creep recovery and post-creep-recovery strength and elastic modulus, drying shrinkage, and thermal expansion, using a wide variety of ashes in a range of concrete mixes designed for the same workability and 28-day strength as a series of control OPC concretes. R.K. Dhir, J.G.L. Munday and L.T. Ong
Mr E. Booth (M) (Ove Arup & Partners): This paper presents test evidence on the failure loads of rc wall beams under various load conditions, which are then compared with the design recommendations of the CIRIA guide (ref. 11 in the paper) and ACI 318 (ref. 16). As the first systematic test of these recommendations since the publication of the CIRIA guide that the writer is aware of, this is an important paper. The authors are also to be congratulated on the clarity of presentation.