Calc. Resultant Increase in Length of 5m Steel Roof Tie Rod Under 80 KN Load

AI Thread Summary
To calculate the resultant increase in length of a 5m steel roof tie rod under an 80 KN tensile load, the formula for elongation due to tensile stress can be used, which is ΔL = (F * L) / (A * E). Here, F is the force applied (80,000 N), L is the original length (5m), A is the cross-sectional area of the rod (calculated from the diameter), and E is Young's modulus (210,000 N/mm²). The cross-sectional area for a 25mm diameter rod is approximately 490.87 mm². The calculation will yield the elongation, providing the increase in length under the specified load.
prettys073
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the question is:-

calculate the resultant increase in lenth of a 5m long roof tie rod made of 25mm diameter steel when subject to a tensile load of 80 KN. (assume E=210KM/mm2)

does anybody know how to solve this or what the calculation is that i got to use? help apprecited thanks in advance!
 
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