A load P will be supported by a structure consisting of a rigid bar ABCD, a polymer [E = 2,300 ksi; a = 2.9 x 10°/°F] bar (1) and analuminum alloy [E = 10,000 ksi; a = 12.5 x 10-6/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.². The bars areunstressed when the structure is assembled at 30°F. After a concentrated load of P = 40 kips is applied and the temperature isincreased to 100°F, determine the normal force in bar (1).6 ft2.5 ftO 5.80 kipsO 3.12 kipsO 3.60 kipsO 4.26 kipsO 4.56 kips(1)B3 ft8 ft1.5 ft(2)D

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aluminum alloy [E = 10,000 ksi; a = 12.5 x 10-6/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.2. The bars are 10-07°F] bar (1) and an unstressed when the structure is assembled at 30°F. After a concentrated load of P = 40 kips is applied and the temperature is increased to 100°F, determine the normal force in bar (1). 6 ft 2.5 ft O 5.80 kips O 3.12 kips O 3.60 kips O 4.26 kips O 4.56 kips (1) B 3 ft 8 ft 1.5 ft (2) D 4

aluminum alloy [E = 10,000 ksi; a = 12.5 x 10-6/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.2. The bars are 10-07°F] bar (1) and an unstressed when the structure is assembled at 30°F. After a concentrated load of P = 40 kips is applied and the temperature is increased to 100°F, determine the normal force in bar (1). 6 ft 2.5 ft O 5.80 kips O 3.12 kips O 3.60 kips O 4.26 kips O 4.56 kips (1) B 3 ft 8 ft 1.5 ft (2) D 4

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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