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RCC Structures Design

RCC Structures Design
The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept

0.9
0.8
0.7
0.2

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RCC Structures Design
If d and n are the effective depth and depth of the neutral axis respectively of a singly reinforced beam, the lever arm of the beam, is

n
d + n/3
d
d - n/3

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RCC Structures Design
The system in which high tensile alloy steel bars (silica manganese steel) are used as pre-stressing tendons, is known as

Freyssinet system
Magnel-Blaton system
Lee-McCall system
C.L. standard system

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RCC Structures Design
The width of the flange of a T-beam, which may be considered to act effectively with the rib depends upon

All of the listed here
Centre to centre distance between T-beams
Breadth of the rib
Overall thickness of the rib

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RCC Structures Design
The stresses developed in concrete and steel in reinforced concrete beam 25 cm width and 70 cm effective depth, are 62.5 kg/cm² and 250 kg/cm² respectively. If m = 15, the depth of its neutral axis is

30 cm
20 cm
35 cm
25 cm

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RCC Structures Design
For initial estimate for a beam design, the width is assumed

1/25th of span
1/20th of span
1/30th of span
1/15th of span

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