One end of a steel girder in a bridge is not fixed,
but is kept on rollers. Give the reason.
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One end of the girder is fixed into the concrete or brick pillars and its other end is not fixed, but it is placed on rollers. The reason is that if there is any rise (or fall) in temperature of atmosphere, the girder can freely expand (or contract) without affecting the pillars.
Answered by
2
Answer:
One end of the girder is fixed into the concrete or brick pillars and its other endis not fixed, but it is placed on rollers. The reason is that if there is any rise (or fall) in temperature of atmosphere, thegirder can freely expand (or contract) without affecting the pillars.
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