A simply supported beam deflects by 5 mm when it is subjected to a concentrated load of 10 kN at its centre. What will be deflection in a 1/10 model of the beam if the model is subjected to a 1 kN load at its centre ?
A. 5 mm
B. 0.5 mm
C. 0.05 mm
D. 0.005mm
Answer: Option A
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A. 5 mm less than the minimum clear distance between the main bars
B. 5 mm less than the minimum cover to the reinforcement
C. Smaller of A and B
D. Greater of A and B
The fixed support in a real beam becomes in the conjugate beam a
A. Roller support
B. Hinged support
C. Fixed support
D. Free end
A. The centre of gravity of the load system is midway between the centre of span and wheel load under consi-deration
B. The centre of span is midway between the centre of gravity of the load system and the wheel load under consideration
C. The wheel load under consideration is midway between the centre of span and the centre of gravity of the load system
D. None of the above
For each 1/10 have a force 1kN
So for 10/10 will have a 10 kN
The deflection will be 5mm
For each 1/10 have a force 1kN
So for 10/10 will have a 10 kN
The deflection will be 5mm
PL^3/48EI P and L becomes 1/10 and b and d becomes 1/10 so deflection remains the same
•0005
how
If the specified thickness of a footing is 100 cm, the depth of the form work may be tolerated from
0.05*100=5cm how 0.05