Faculty Publications
Permanent URI for this communityhttps://idr.nitk.ac.in/handle/123456789/18736
Publications by NITK Faculty
Browse
Search Results
Item The behaviour of class-3 type prestressed concrete beams, at the limit states of cracking, deflexion and collapse are investigated by experiments on pretensioned beams with mild steel as supplementary reinforcement. Several methods of calculating the width of cracks are examined in the light of experimental results and an empirical formula, which includes the effect of percentage of untensioned reinforcement is suggested. The deflexions of beams, based on the method of Beeby and Taylor, were marginally conservative when compared with the experimental results. The ultimate moment capacity of concrete sections with tensioned and untensioned reinforcement, was underestimated by as much as 10, 15 and 25 per cent by the Indian, British and American Code recommendations. © 1973.(Flexural behaviour of pretensioned concrete beams with limited prestress) Krishna Raju, N.; Basavarajaiah, B.S.; Ahamed Kutty, U.C.1973Item Concrete constructions exposed to marine environments eventually suffer from corrosion of embedded steel rods. In its advanced state, this corrosion can crack the concrete and weaken the structure. The authors studied the behaviour of paint-coated reinforcements in cement concrete containing different amounts of chloride through an electrode polarization technique. Coated steel rods perform better as far as corrosion of rebar is concerned.(ELECTRO-CHEMICAL BEHAVIOUR OF COATED REINFORCEMENT IN CEMENT CONCRETE.) Patil, B.T.; Gajendragad, M.R.; Ramchandran, T.; Ranganna, G.; Nayak, H.V.S.1987Item This paper presents an experimental study of the ferrocement V-shaped folded plate units with ribs in the valley portion. The units with different plate angles and different percentages of steel consist of two layers of hexagonal wire meshes and mild steel bars. Deflections, strains and crack observations are made at various stages of loading. Predicted cracking loads, ultimate loads and deflections are compared with the experimental results. The suitability of the units for precast floor and roof purposes is discussed.(FERROCEMENT PRECAST RIBBED ROOF ELEMENTS: AN EXPERIMENTAL STUDY.) Venkatakrishna, H.V.; Venkatachala, C.1986