Answered: The ABC steel rod is attached to rigid…

Fundamentals Of Construction Estimating

4th Edition

ISBN:9781337399395

Author:Pratt, David J.

Publisher:Pratt, David J.

Chapter3: Measuring Quantities Generally

Section: Chapter Questions

Problem 15RQ

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Note: Choices also given. please show your work with clearly The ABC steel rod is attached to rigid supports and is unstressed at a temperature of 20°C. The steel is assumed to be elastoplastic, with E = 200 GPa and Sy 300 MPa. The temperature of both portions of the rod is then raised to 150°C. Knowing that the coefficient of thermal expansion for the steel is = 11.7 × 10-6/°C and assuming that it removes the redundant support at B. Determine the thermal stresses in each span. 1) thermal stress in AC given in Pa 2) thermal stress in CB given in Pa 3) Reaction in the redundant support in N

esfuerzo
Reacción en el
térmico entérmico en 3) apoyo
AC dado enCB dado en redundante en
esfuerzo
Puntuación
Pa
Pa
N
2.429×10E6
0/4
4.048×10E6
0/4
Aswers
2.549×10E6
/0
4.249X10E6
/0
1.275×10E3
/0
1.214X10E3
0/4

A = 500 mm2
A= 300 mm²
| A
C
150 mm
250 mm
B

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