Computers and Concrete

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Cable layout design of two way prestressed concrete slabs using FEM

  • Khan, Ahmad Ali (Dept. Civil Engg., MANIT) ;
  • Pathak, K.K. (CS&PM Group, AMPRI (CSIR)) ;
  • Dindorkar, N. (Dept. Civil Engg., MANIT)
  • Received : 2010.10.12
  • Accepted : 2012.04.25
  • Published : 2013.01.25
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Abstract

In this paper, a new approach for cable layout design of pre-stressed concrete slabs is presented. To account the cable profile accurately, it is modelled by B-spline. Using the convex hull property of the B-spline, an efficient algorithm has been developed to obtain the cable layout for pre-stressed concrete slabs. For finite element computations, tendon and concrete are modelled by 3 noded bar and 20 noded brick elements respectively. The cable concrete interactions are precisely accounted using vector calculus formulae. Using the proposed technique a two way prestressed concrete slab has been successfully designed considering several design criteria.

Keywords

References

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