Calculate the force in members BC, CH, and GH by method of sections 8000 kN A₂ = 0 A B H 6m A,= 7500KN FBC 6m FCH FGH G 8m = 0 ΣFx = 6 FGH + FCH+ FBC = 0 10 = 0 ΣFy = Ay + 8 10 FCH 80000 8 10 FCH = 625 kN (T) 7500+ FCH - 8000 = 0 + Mc = 0 -Ay(12)+8000 (6)+FGH (8) = 0 = 0 -7500 (12)+8000 (6)+FGH (8) FGH = 5250 kN (T) 6 5250 + 625+ FBC=0 10 FBC = -5625 kN FBC = 5625 kN (C)

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Loads and Reactive Forces

Loads are the external influences that a beam experiences under its working conditions. For instance, a beam may be subjected to shear loads, twisting loads, bending moment, and axial loads during its working conditions. Engineers primarily deal with beams and trusses in the civil engineering domain. Due to the influence of loads, it is very crucial to determine the induced stresses and deformation values. These values give an insight into the critical area of the beam that needs to be worked upon to make it fail-safe.