N/A
Standard: £10 + VATMembers/Subscribers: Free
Members/Subscribers, log in to access
The Structural Engineer, Volume 62, Issue 3, 1984
The design of slabs is dependent on an understanding of the manner in which internal forces and moments are mobilised. The paper examines linear slab behaviour in zones near free edges. It is shown that analysis based on ‘thick-plate’ theory provide predictions consistent with test data and 3-dimensional analysis, whereas analyses based on classical or ‘thinplate’ theory do not. Two cases are examined in which design against shear failure can be critical. These are a skew bridge slab and a flat building slab. In both cases, the internal actions are shown to be different to those commonly assumed. It is shown that finite element analysis, using the heterosis formulation for ‘thick-plate’ theory, requires a mesh considerably finer than that commonly used in edge zones for reliable results to be provided. R.J. Cope and P.V. Rao
Mr G. F. J. Nash (Constrado): The author has shown in his paper the means by which the design strength of bolts is calculated for friction, shear, and bearing, at both ULS and SLS.
The legal implications of ground heave and subsidence and of damage to relatively new buildings and to old buildings will tend to be somewhat different. Russell G. Grahame