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During the construction of the LRT railroad track, hot rolled structural steel A36 of 10-m-long rails were used. The steel ra

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Answer #1

Solution :- 3 AL PLA(AT) = 10% 11.7 10G x60-20) *10 2.34mm &ince, AL <5mm, so thermal expansion does not get constrained. So,

Thus there is no normal stress in the rails.

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