2.29. A framework consists of three pinned hars AD, BD, and CD as shown in Fig. 2-46. The load F = 8 kN acts vertically at D. The cross-sectional areas of bars D①DC: CCACHE: ③ are each 200 V5 mm², the area of bar ②is 400 mm², L=3m, the elastic moduli are E₁ = 200 GPa, E₁ = 80 GPa, and E, 100 GPa. Determine the horizontal and vertical components of displacement of point D as well as the axial force in bar ②. Ans. -0.136 mm, -0.204 mm, 2.182 kN B Di L/2 F=8kN Fig. 2-46
2.29. A framework consists of three pinned hars AD, BD, and CD as shown in Fig. 2-46. The load F = 8 kN acts vertically at D. The cross-sectional areas of bars D①DC: CCACHE: ③ are each 200 V5 mm², the area of bar ②is 400 mm², L=3m, the elastic moduli are E₁ = 200 GPa, E₁ = 80 GPa, and E, 100 GPa. Determine the horizontal and vertical components of displacement of point D as well as the axial force in bar ②. Ans. -0.136 mm, -0.204 mm, 2.182 kN B Di L/2 F=8kN Fig. 2-46
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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