Civil Engineering :: RCC Structures Design
- If C is creep coefficient, f is original pre-stress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is:
- The percentage of minimum reinforcement of the gross sectional area in slabs, is
- If R and T are rise and tread of a stair spanning horizontally, the steps are supported by a wall on one side and by a stringer beam on the other side, the steps are designed as beams of width
- If ‘W’ is the uniformly distributed load on a circular slab of radius ‘R’ fixed at its ends, the maximum positive radial moment at its centre, is
- The stem of a cantilever retaining wall which retains earth level with top is 6 m. If the angle of repose and weight of the soil per cubic metre are 30° and 2000 kg respectively, the effective width of the stem at the bottom, is
- The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept
- An R.C.C. column is treated as short column if its slenderness ratio is less than
- A ribbed slab is provided for
- The thickness of the topping of a ribbed slab, varies between
- The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel rods but not less than