4. The three-bar truss ABC shown in the figure has a span L = 3 m and is constructed of steel pipes having cross sectional area A= 3900 mm? and modulus of elasticity E = 200 GPa. Identical loads P act both vertically and horizontally at joint C, as shown. (a) If P= 650 kN, what is the horizontal displacement of joint B? (b) What is the maximum permissible load value Pmax if the displacement of joint B is limited to 1.5 mm?

4. The three-bar truss ABC shown in the figure has a span L = 3 m and is constructed of steel pipes having cross sectional area A= 3900 mm? and modulus of elasticity E = 200 GPa. Identical loads P act both vertically and horizontally at joint C, as shown. (a) If P= 650 kN, what is the horizontal displacement of joint B? (b) What is the maximum permissible load value Pmax if the displacement of joint B is limited to 1.5 mm?

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.3.2P: A long, rectangular copper bar under a tensile load P hangs from a pin that is supported by two...

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