Three identical bars support a rigid beam that has negligible weight. Each of the three bars has a cross-sectional area of 800 mm2 and is made of 304 stainless steel for which E = 193 GPa and a = 17 x 10-6/ °C. The bars are initially free of stress when P = 0 and T1 = 20°C. If two vertical loads of P = 75 kN are applied as shown and simultaneously bar CD is cooled to a temperature of T2 = 5°C while bars AB and EF remain at 20°C, determine the axial force developed in each bar. Set d = 1 m and L = 3 m. The steel will be in the linear elastic range. D F LLI P E þ▬▬d▬▬❖▬▬d▬▬★▬▬d▬▬★▬▬d▬▬★

Three identical bars support a rigid beam that has negligible weight. Each of the three bars has a cross-sectional area of 800 mm2 and is made of 304 stainless steel for which E = 193 GPa and a = 17 x 10-6/ °C. The bars are initially free of stress when P = 0 and T1 = 20°C. If two vertical loads of P = 75 kN are applied as shown and simultaneously bar CD is cooled to a temperature of T2 = 5°C while bars AB and EF remain at 20°C, determine the axial force developed in each bar. Set d = 1 m and L = 3 m. The steel will be in the linear elastic range. D F LLI P E þ▬▬d▬▬❖▬▬d▬▬★▬▬d▬▬★▬▬d▬▬★

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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