The bending stiffness of reinforced concrete slabs has been studied using finite difference equations to simulate the development of deformations over time. The theoretical stiffness model incorporated a sophisticated model of concrete deformation and accounted for the effects of non- prestressed steel reinforcement. For a normal class of slabs, a set of independent model parameters was established, the range of each variable was estimated, and uncracked slab-element behaviour was simulated to establish the typical flexural rigidity and the sensitivity of rigidity to the variability of each parameter. The study methodology is briefly reviewed. A simple predictive equation for an effective (long-term) gross modulus of elasticity is given, together with an estimate of the expected equation error, and the role of compression steel in stiffening slabs is examined in view of the results. The number of the covering abstract for the conference is TRIS no 394142. (Author/TRRL)

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 83-87

Subject/Index Terms

Filing Info

  • Accession Number: 00394151
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 0-85825-201-5
  • Report/Paper Numbers: 83/12
  • Files: ITRD, TRIS, ATRI
  • Created Date: Aug 31 1985 12:00AM