RCC Structures Design
As the percentage of steel increases

Depth of neutral axis decreases
Depth of neutral axis increases
Lever arm increases
Lever arm decreases

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RCC Structures Design
In a beam the local bond stress Sb, is equal to

Leaver arm/(Shear force × Total perimeter of reinforcement)
Total perimeter of reinforcement/(Leaver arm × Shear force)
Shear force/(Leaver arm × Total perimeter of reinforcement)
Leaver arm/(Bending moment × Total perimeter of reinforcement)

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RCC Structures Design
An R.C.C. lintel is spanning an opening of 2 m span in a brick wall. The height of the roof is 2.9 m above the floor level and that of the opening is 2.1 m above the floor level. The lintel is to be designed for self weight plus

Triangular load + load from the roof
UDL of wall
Triangular load of the wall
UDL of wall + load from the roof

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