The displacement of tension member under service load is given by(a) PLEAg(b) PLE/Ag(c) PL/EAg(d) P/LEAgI got this question by my college professor while I was bunking the class.This intriguing question comes from Modes of Failure, Slenderness Ratio and displacement in section Design of Tension Members of Design of Steel Structures

The displacement of tension member under service load is given by(a) P

1.	The displacement of tension member under service load is given by(a) PLEAg(b) PLE/Ag(c) PL/EAg(d) P/LEAgI got this question by my college professor while I was bunking the class.This intriguing question comes from Modes of Failure, Slenderness Ratio and displacement in section Design of Tension Members of Design of Steel Structures
Answer» Right choice is (c) PL/EAg The best EXPLANATION: The displacement, that is increase in length of tension MEMBER, under service load is given by Δ = PL/EAg, where Δ = Elongation of member in mm, P= unfactored axial load in N, L = length of member in mm, E = elastic modulus = 2×10^5MPa, AG = GROSS cross sectional AREA of member in mm^2.

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