In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed

RCC Structures Design
In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed

25 mm

15 mm

10 mm

20 mm

25 mm

15 mm

10 mm

20 mm

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RCC Structures Design
The ratio of the breadth to effective depth of a beam is kept

0.75

0.25

0.7

0.5

0.75

0.25

0.7

0.5

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RCC Structures Design
A column is regarded as long column if the ratio of its effective length and lateral dimension, exceeds

25

15

20

10

25

15

20

10

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RCC Structures Design
In a doubly-reinforced beam if ‘c’ and ‘t’ are stresses in concrete and tension reinforcement, ‘d’ is the effective depth and ‘n’ is depth of critical neutral axis, the following relationship holds good

(t + c)/n = (d + n)/n

mc/t = (d - n)/t

(m + c)/t = n/(d + n)

mc/t = n/(d - n)

(t + c)/n = (d + n)/n

mc/t = (d - n)/t

(m + c)/t = n/(d + n)

mc/t = n/(d - n)

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RCC Structures Design
For M 150 grade concrete (1 : 2 : 4) the moment of resistance factor is

8.5

5.8

7.5

0.87

8.5

5.8

7.5

0.87

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RCC Structures Design
The diameter of main bars in R.C.C. columns, shall not be less than

11 mm

15 mm

12 mm

10 mm

11 mm

15 mm

12 mm

10 mm

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RCC Structures Design

RCC Structures Design The ratio of the breadth to effective depth of a beam is kept

RCC Structures Design A column is regarded as long column if the ratio of its effective length and lateral dimension, exceeds

RCC Structures Design In a doubly-reinforced beam if ‘c’ and ‘t’ are stresses in concrete and tension reinforcement, ‘d’ is the effective depth and ‘n’ is depth of critical neutral axis, the following relationship holds good

RCC Structures Design For M 150 grade concrete (1 : 2 : 4) the moment of resistance factor is

RCC Structures Design The diameter of main bars in R.C.C. columns, shall not be less than

RCC Structures Design
The ratio of the breadth to effective depth of a beam is kept

RCC Structures Design
A column is regarded as long column if the ratio of its effective length and lateral dimension, exceeds

RCC Structures Design
In a doubly-reinforced beam if ‘c’ and ‘t’ are stresses in concrete and tension reinforcement, ‘d’ is the effective depth and ‘n’ is depth of critical neutral axis, the following relationship holds good

RCC Structures Design
For M 150 grade concrete (1 : 2 : 4) the moment of resistance factor is

RCC Structures Design
The diameter of main bars in R.C.C. columns, shall not be less than