RCC Structures Design
If d is the diameter of a bar, ft is allowable tensile stress and fb, is allowable bond stress, the bond length is given by

ft .d/4fb
(π/4). (ft .d/fb)
(π/4). (ft .d3/fb)
π ft .d²/fb

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

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