RCC Structures Design
If p1 is the vertical intensity of pressure at a depth h on a block of earth weighing w per unit volume and the angle of repose φ, the lateral intensity of pressure p2 is

w (1 - cos φ)/h (1 + sin φ)
wh (1 - cos φ)/(1 + sin φ)
wh (1 - sin φ)/(1 + sin φ)
wh (1 - tan φ)/(1 + tan φ)

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

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