*Prob. 2.3-9. A “rigid" beam AD is supported by a smooth pin at D and by vertical rods attached to the beam at points A, B, and C. The rods are all strain free when the beam is horizontal (0 = (0). Subsequently, rod (2) is heated until its extensional strain reaches the value e = (a) Determine the value of the (counterclockwise) beam angle 0 that corresponds to the strain e, = 80.0(10¬") . (b) Determine the corresponding extensional strains e and €3. 80.0(10-") im. L1 = L3 = 30 in., L2 = 40 in., a = 20 in., b 60 in. L2 (2) L1 |(1) -"Rigid"| |A В L3 (3) P2.3-9

*Prob. 2.3-9. A “rigid" beam AD is supported by a smooth pin at D and by vertical rods attached to the beam at points A, B, and C. The rods are all strain free when the beam is horizontal (0 = (0). Subsequently, rod (2) is heated until its extensional strain reaches the value e = (a) Determine the value of the (counterclockwise) beam angle 0 that corresponds to the strain e, = 80.0(10¬") . (b) Determine the corresponding extensional strains e and €3. 80.0(10-") im. L1 = L3 = 30 in., L2 = 40 in., a = 20 in., b 60 in. L2 (2) L1 |(1) -"Rigid"| |A В L3 (3) P2.3-9

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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Question

*Prob. 2.3-9. A “rigid" beam AD is supported by a smooth
pin at D and by vertical rods attached to the beam at points
A, B, and C. The rods are all strain free when the beam is
horizontal (0 = 0). Subsequently, rod (2) is heated until its
extensional strain reaches the value e =
(a) Determine the value of the (counterclockwise)
beam angle 0 that corresponds to the strain e2 = 80.0(10¬")
: (b) Determine the corresponding extensional strains e
and e3.
80.0(10-") in.
in.
in.
= L3 = 30 in., L2 = 40 in., a = 20 in., b = 60 in.
%3D
L2
|(2)
L1
|(1)
-"Rigid"
A
В
a
L3
P2.3-9

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