A two-storey apartment building designed by Engr. Sang Woo has a brace system of main structural member shown in the figure. Considering that the bars are stressed - free the time it was assembled at 25°C. Determine the normal stresses in MPA of rods given that: Bronze (1) Aluminum (2) E= 100 GPa E= 70 GPa a = 16.8 x10 6 / °C Ø = 21mm a = 22.8 x10 6/°C Ø = 15 mm 350 mm Note: After assembly it has been observed that the bronze rod 250 mm (1) temperature remains the same while aluminum rod decreased by 42°C. Round off your answers to nearest whole number 200 mm (2) 500 mm
A two-storey apartment building designed by Engr. Sang Woo has a brace system of main structural member shown in the figure. Considering that the bars are stressed - free the time it was assembled at 25°C. Determine the normal stresses in MPA of rods given that: Bronze (1) Aluminum (2) E= 100 GPa E= 70 GPa a = 16.8 x10 6 / °C Ø = 21mm a = 22.8 x10 6/°C Ø = 15 mm 350 mm Note: After assembly it has been observed that the bronze rod 250 mm (1) temperature remains the same while aluminum rod decreased by 42°C. Round off your answers to nearest whole number 200 mm (2) 500 mm
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![A two-storey apartment building designed by Engr. Sang Woo has a brace system of main
structural member shown in the figure. Considering that the bars are stressed - free the time it
was assembled at 25°C. Determine the normal stresses in MPA of rods given that:
Bronze (1)
Aluminum (2)
E= 100 GPa
E= 70 GPa
a = 16.8 x10 6 / °C
Ø = 21mm
a = 22.8 x10 6/°C
Ø = 15 mm
Note: After assembly it has been observed that the bronze rod
350 mm
250 mm
(1)
temperature remains the same while aluminum rod decreased by
42°C. Round off your answers to nearest whole number
200 mm
(2)
500 mm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F457d1776-c374-404d-b52c-edbf19f988c1%2Fc87f2f95-948a-4445-8fd7-61be8ec44d72%2Fsqtjl5y_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A two-storey apartment building designed by Engr. Sang Woo has a brace system of main
structural member shown in the figure. Considering that the bars are stressed - free the time it
was assembled at 25°C. Determine the normal stresses in MPA of rods given that:
Bronze (1)
Aluminum (2)
E= 100 GPa
E= 70 GPa
a = 16.8 x10 6 / °C
Ø = 21mm
a = 22.8 x10 6/°C
Ø = 15 mm
Note: After assembly it has been observed that the bronze rod
350 mm
250 mm
(1)
temperature remains the same while aluminum rod decreased by
42°C. Round off your answers to nearest whole number
200 mm
(2)
500 mm
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