2R + T = 60
2R + T = 30
R + 2T = 60
R + 2T= 30

## RCC Structures Design The load stress of a section can be reduced by

Replacing smaller bars by greater number of greater bars
Decreasing the lever arm
Increasing the total perimeter of bars
Replacing larger bars by greater number of small bars

## RCC Structures Design Long and short spans of a two way slab are ly and lx and load on the slab acting on strips parallel to lx and ly be wx and wy respectively. According to Rankine Grashoff theory

(wx/wy) = (ly/lx)
(wx/wy) = (ly/lx)⁴
None of these
(wx/wy) = (ly/lx)²

## RCC Structures Design Bottom bars under the columns are extended into the interior of the footing slab to a distance greater than

42 diameters from the inner edge of the column
24 diameters from the centre of the column
42 diameters from the centre of the column
42 diameters from the outer edge of the column

0.7
0.9
0.8
0.6

## RCC Structures Design The number of treads in a flight is equal to

Risers plus one
Risers in the flight
None of these
Risers minus one