The influence of steel ductility on the ductility of partially prestressed concrete beams

In Australia discussions of the importance of steel ductility and its influence on structural member ductility have been in focus for some time. While member ductility has been extensively studied for reinforced concrete beams, ductility limits of partially prestressed concrete (PPC) beams have not been studied as extensively. The development of safe ductility limits for design and for designers to gain an understanding of the parameters that effects member ductility is an important aspect of sound structural design. This paper provides a summary of the influence of steel ductility on the deformation capacity of PPC beams, accounting for varying steel percentages, ductility and slenderness. A crack analysis for PPC is utilised to accurately take into account local effects at cracks and between. The results obtained show that steel ductility is a primary determinant of the overall ductility of PPC elements. The results also provide a better understanding of the influence of PPC beam design parameters on the member ductility of such elements. (a) For the covering entry of this conference, please see ITRD abstract no. E214936.

Language

  • English

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Filing Info

  • Accession Number: 01051014
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Jun 11 2007 1:08PM