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Computers and Concrete Volume 11, Number 1, January 2013 , pages 75-91 DOI: https://doi.org/10.12989/cac.2013.11.1.075 |
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Cable layout design of two way prestressed concrete slabs using FEM |
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Ahmad Ali Khan, K.K.Pathak and N.Dindorkar
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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 Bspline, 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. | ||
| Key Words | ||
| pre-stressed concrete; cable layout design; finite element analysis; stress; B-spline | ||
| Address | ||
| Ahmad Ali Khan and N.Dindorkar: Dept. Civil Engg. MANIT, Bhopal (M.P.), India 462051; K.K.Pathak: CS&PM Group, AMPRI (CSIR), Bhopal (M.P.), India 462064 | ||