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

10 mm

20 mm

25 mm

15 mm

10 mm

20 mm

25 mm

15 mm

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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

Magnel-Blaton system

C.L. standard system

Freyssinet system

Lee-McCall system

Magnel-Blaton system

C.L. standard system

Freyssinet system

Lee-McCall system

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RCC Structures Design
The amount of reinforcement for main bars in a slab, is based upon

Minimum bending moment

Maximum bending moment

Minimum shear force

Maximum shear force

Minimum bending moment

Maximum bending moment

Minimum shear force

Maximum shear force

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RCC Structures Design
If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and σc are the modular ratio and maximum stress in the configuration of concrete, the strength of column is

σcAc + m σcAsc

All listed here

σc[A + (m - 1)Asc]

σc(A - Asc) + m σcAsc

σcAc + m σcAsc

All listed here

σc[A + (m - 1)Asc]

σc(A - Asc) + m σcAsc

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RCC Structures Design
If ‘W’ is weight of a retaining wall and ‘P’ is the horizontal earth pressure, the factor of safety against sliding, is

1.0

3.0

2.0

1.5

1.0

3.0

2.0

1.5

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RCC Structures Design
A pre-stressed concrete member is preferred because

All listed here

Its dimensions are not decided from the diagonal tensile stress

Large size of long beams carrying large shear force need not be adopted

Removal of cracks in the members due to shrinkage

All listed here

Its dimensions are not decided from the diagonal tensile stress

Large size of long beams carrying large shear force need not be adopted

Removal of cracks in the members due to shrinkage

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RCC Structures Design

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

RCC Structures Design The amount of reinforcement for main bars in a slab, is based upon

RCC Structures Design If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and σc are the modular ratio and maximum stress in the configuration of concrete, the strength of column is

RCC Structures Design If ‘W’ is weight of a retaining wall and ‘P’ is the horizontal earth pressure, the factor of safety against sliding, is

RCC Structures Design A pre-stressed concrete member is preferred because

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

RCC Structures Design
The amount of reinforcement for main bars in a slab, is based upon

RCC Structures Design
If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and σc are the modular ratio and maximum stress in the configuration of concrete, the strength of column is

RCC Structures Design
If ‘W’ is weight of a retaining wall and ‘P’ is the horizontal earth pressure, the factor of safety against sliding, is

RCC Structures Design
A pre-stressed concrete member is preferred because