For a ribbed slab

RCC Structures Design
For a ribbed slab

Clear spacing between ribs shall not be greater than 4.5 cm

Width of the rib shall not be less than 7.5 cm

All listed here

Overall depth of the slab shall not exceed four times the breadth of the rib

Clear spacing between ribs shall not be greater than 4.5 cm

Width of the rib shall not be less than 7.5 cm

All listed here

Overall depth of the slab shall not exceed four times the breadth of the rib

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RCC Structures Design
If K is a constant depending upon the ratio of the width of the slab to its effective span l, x is the distance of the concentrated load from the nearer support, bw is the width of the area of contact of the concentrated load measured parallel to the supported edge, the effective width of the slab be is

K/x (1 + x/d) + bw

Kx (1 - x/l) + bw

Kx (1 + x/l) + bw

All listed here

K/x (1 + x/d) + bw

Kx (1 - x/l) + bw

Kx (1 + x/l) + bw

All listed here

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RCC Structures Design
For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed

10

20

25

15

10

20

25

15

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RCC Structures Design
If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre distance of beams 3 m, effective span of beams 6 m, the effective flange width of the beam, is

100 cm

300 cm

200 cm

150 cm

100 cm

300 cm

200 cm

150 cm

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RCC Structures Design
If p₁ and p₂ are effective lateral loadings at the bottom and top exerted by a level earth subjected to a super-load on the vertical face of height h of a retaining wall, the horizontal pressure p per unit length of the wall, is

[(p₁ + p₂)/2] h

[(p₁ - p₂)/2] h

(p₁ - p₂) ⅔h

[(p₁ + p₂)/4] h

[(p₁ + p₂)/2] h

[(p₁ - p₂)/2] h

(p₁ - p₂) ⅔h

[(p₁ + p₂)/4] h

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RCC Structures Design
If longitudinally spanning stairs are casted along with their landings, the maximum bending moment per metre width, is taken as

\frac{w l^{2}}{4}

\frac{w l^{2}}{12}

\frac{w l^{2}}{8}

\frac{w l^{2}}{10}

$\frac{w l^{2}}{4}$

$\frac{w l^{2}}{12}$

$\frac{w l^{2}}{8}$

$\frac{w l^{2}}{10}$

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RCC Structures Design

RCC Structures Design For a ribbed slab

RCC Structures Design For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed

RCC Structures Design If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre distance of beams 3 m, effective span of beams 6 m, the effective flange width of the beam, is

RCC Structures Design If p₁ and p₂ are effective lateral loadings at the bottom and top exerted by a level earth subjected to a super-load on the vertical face of height h of a retaining wall, the horizontal pressure p per unit length of the wall, is

RCC Structures Design If longitudinally spanning stairs are casted along with their landings, the maximum bending moment per metre width, is taken as

RCC Structures Design
For a ribbed slab

RCC Structures Design
For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed

RCC Structures Design
If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre distance of beams 3 m, effective span of beams 6 m, the effective flange width of the beam, is

RCC Structures Design
If p₁ and p₂ are effective lateral loadings at the bottom and top exerted by a level earth subjected to a super-load on the vertical face of height h of a retaining wall, the horizontal pressure p per unit length of the wall, is

RCC Structures Design
If longitudinally spanning stairs are casted along with their landings, the maximum bending moment per metre width, is taken as