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A beam carrying a uniformly distributed load rests on two supports ‘b’ apart with equal overhangs ‘a’ at each end. The ratio b/a for zero bending moment at mid-span is
- a)1/2
- b)1
- c)3/2
- d)2
Correct answer is option 'D'. Can you explain this answer?
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A beam carrying a uniformly distributed load rests on two supports &ls...
This point is also the point of contra-fiexure and it will be zero at b = 2a.
So, answer is (d).
Most Upvoted Answer
A beam carrying a uniformly distributed load rests on two supports &ls...
, one at each end. The load on the beam is distributed evenly over its entire length, creating a constant load per unit length.
The supports at both ends of the beam provide a reaction force to counteract the weight of the load and keep the beam in equilibrium. The reaction force at each support is equal to half of the total load on the beam.
To calculate the reaction forces, we need to find the total load on the beam first. This can be done by multiplying the load per unit length by the length of the beam. For example, if the load per unit length is 50 N/m and the length of the beam is 10 m, then the total load on the beam is 500 N.
Once we have the total load, we can find the reaction force at each support by dividing the load by 2. In the example above, the reaction force at each support would be 250 N.
It's important to note that the supports must be strong enough to handle the reaction forces and prevent the beam from collapsing or bending. The size and strength of the supports will depend on the weight and length of the beam, as well as the material it is made of.
The supports at both ends of the beam provide a reaction force to counteract the weight of the load and keep the beam in equilibrium. The reaction force at each support is equal to half of the total load on the beam.
To calculate the reaction forces, we need to find the total load on the beam first. This can be done by multiplying the load per unit length by the length of the beam. For example, if the load per unit length is 50 N/m and the length of the beam is 10 m, then the total load on the beam is 500 N.
Once we have the total load, we can find the reaction force at each support by dividing the load by 2. In the example above, the reaction force at each support would be 250 N.
It's important to note that the supports must be strong enough to handle the reaction forces and prevent the beam from collapsing or bending. The size and strength of the supports will depend on the weight and length of the beam, as well as the material it is made of.
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A beam carrying a uniformly distributed load rests on two supports ‘b’ apart with equal overhangs ‘a’ at each end. The ratio b/a for zero bending moment at mid-span isa)1/2b)1c)3/2d)2Correct answer is option 'D'. Can you explain this answer?
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