The city office of VIKRANT
GROUP OF INSTITUTIONS is under construction at Gwalior. The area of city office is (12.5m x 27.5m) . The head room for
each floor sanctioned by the Municipal Corporation of Gwalior is only 3
meters . As the head room is not sufficient to accommodate RCC beams for 12.5 meter of span. Due to this problem of
less head room, our students were instructed to design the structure without
beams. Therefore our students gave an
innovative idea to introduce prestressed solid roof slab to solve this problem of lesser head room. As such a solid
prestressed slab has been designed giving less thickness for slab to provide
efficient dimensions (i.e. minimum thickness of slab).Under prestressing the
area of the concrete below neutral axis (N.A.) is also utilized fully as
compared to ordinary RCC work, thus providing most economical structure with
minimum dimension for required strength .
M-35
Mix design , High tension wires (HT steel ) with required sheathing have been
provided. After casting the process of post tensioning have been
implemented successfully .For
prestressing hydraulic jacks have been
used then the cement (OPC) slurry was injected into the hollow sheathings
The following test have been done :-
(a)
Aggregate
grading test .
(b)
Impact
test for coarse aggregate
(c)
Water
absorption test for coarse aggregate .
(d)
Cube
crushing of M-35 Mix.
It is the First Building Constructed in Gwalior Region on
the principle of prestressing, designed by our students of M.Tech. (Structural Engineering) and checked
by the Dept. of Civil Engg., VITM, Gwalior, (M.P.).
Prof. J.S. Kushwah, Head, Dept of Civil Engineering., VITM, Gwalior
