Cost Comparison and Performance of Different Types of Reinforcement for Two –Way Slabs


Ahmed Heidayet Muhamed

College of Engineering, Salahaddin University




Abstract

The effectiveness of the member should not take only from strength point of view, but also from other considerations. A cost analysis of two-way concrete slabs was studied. The variables were type of reinforcement (bars,fibers, and wire meshes),and cost of materials (including cost of labors). The results indicated that the variation of steel content and labor prices seems to have a significant contribution in the cost objective function. Cost of ferrocemnt slab panels is high relative to its performance, while fibrous slab panels have more ductility with less cost.


Keywords: slabs, cost, ferrocement, steel finer, two-way slab, labor cost, ductility, reinforced concrete



References
  1. Al-Ta’an, S.A and AI-Feel, J.R., “ Role of Steel Fiber Reinforcement in Flexural Failure.” Proceeding, 3rd RII, Em Introductional Symposium on Developments in finer Reinforced Cement and Concrete, University of Sheffield, V.2, July 1986.
  2. Muspartt, M.A., “Destructive tests on rationally designed slabs, “Magazine of Concrete Research, March, 1970, 22, No.70, 25-36.
  3. Jain, S.C. and Kennedy, J.P., “ Yield criterion for reinforced concrete Slabs,” journal of the structural Division March 1974, pp.631-644.
  4. Ghalib, M.A., “ Moment capacity of steel finer reinforced small concrete Slabs.” ACI journal, July-Aug 1980.247-25.
  5. Austriaco, N.G,Lee, S.L. and Pama. R.P., “ Inelastic Behaviour of ferrocement Slas in bending,” Magazine of Concrete Research, 1975,27, No.93, Dec, 193-203
  6. Al Rifai. W.N. and Trikha, D.N., “ Effect of Arrangement and Orientation of Hexagonal mesh on the Behaviour of Two-Way Ferrocement Slabs,”proc.3rd Int Conf. Ferrocement, Civil Engineering Department, University of Roorkee, New Delhi, 1988, pp. 219-233.
  7. Aziz, I.F, “ Flexural Strength and Behaviour of Ferrocement Slabs, “M.Sc. Thesis, University of Salahaddin , Iraq, July 1994.
  8. Swamy, R.N. and Kent, B., “Some Practical Structural Applications of Steel finer reinforced concrete, Proc. of the intern. Symp. on finer Reinforced concrete, Ottawa, Canada, Oct. 1973, ACI Publication, SP-44, 319-336.
9. Irons, M.E,"Cos Comparison-Ferrocement and Concrete versus Steel," Concrete  International, Design and construction,11, Nov, 1983,5,45,50.
10.Chakrabarty, B.K.,"Models for Optimal Design of Reinforced Concrete Beams,"  Computers and Structures, 1992,42(3), 447-452.
11.Ezeldin, A.S., and Hsu, C.T., "Optimization of Reinforced Fibrous Concrete Beams," ACI-Structural Journal, 1992, 89 (1),106-114.
12.Al-Salloum, Y.A and Siddiqi, 1992,89(1),106-114.
13. ACI 318 M-95". Concrete International, Dec.1994, 16(12),77,128.
14. Parl, R. adn Paulay, T.,"Reinforced concrete Structures," 1st edition, Wiely  interscience Publication, John Wiley and Sons, New York, 1975,761.
15. Prawel, S.P. and Reinborn, A., " Properties in Flexure of under-Reinforced Ferrocement panels in Two-way bending," Journal of Ferrocement, July. 1992,12(3).237-250.
16- Gastro , J. " Ferrocement Roofing Manufactured on a self0help Basis," Journal of Ferrocement, No.1, July. 1977(7), 17-27.