Problem 3: The concrete post (E, = 3.6 x 10° psi and a, = 5.5 x 10 / F) is reinforced with six steel bars, each of 7/8-in. diameter (E, = 29 x 10° psi and a, = 6.,5 x 10/°F). a) Determine the normal stresses induced in the steel and in the concrete when a compressive load equal to 200 kips is applied at the top of the post. b) Determine the normal stresses induced in the steel and in the concrete by a temperature rise of 65°F (without the compressive load). c) Determine the normal stresses induced in the steel and in the concrete when a compressive load equal to 200 kips is applied at the top of the post and there is a temperature rise of 65°F. 10 in 10 in.
Problem 3: The concrete post (E, = 3.6 x 10° psi and a, = 5.5 x 10 / F) is reinforced with six steel bars, each of 7/8-in. diameter (E, = 29 x 10° psi and a, = 6.,5 x 10/°F). a) Determine the normal stresses induced in the steel and in the concrete when a compressive load equal to 200 kips is applied at the top of the post. b) Determine the normal stresses induced in the steel and in the concrete by a temperature rise of 65°F (without the compressive load). c) Determine the normal stresses induced in the steel and in the concrete when a compressive load equal to 200 kips is applied at the top of the post and there is a temperature rise of 65°F. 10 in 10 in.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Problem 3:
The concrete post (E. = 3.6 x 10° psi and a. = 5.5 x 10/°F) is reinforced with six steel bars, each of
7/8-in. diameter (E, = 29 x 10 psi and a, = 6.5 x 10/°F).
a) Determine the normal stresses induced in the steel and in the
concrete when a compressive load equal to 200 kips is applied at
the top of the post.
b) Determine the normal stresses induced in the steel and in the
concrete by a temperature rise of 65°F (without the compressive
load).
c) Determine the normal stresses induced in the steel and in the
concrete when a compressive load equal to 200 kips is applied at
the top of the post and there is a temperature rise of 65°F.
10 in.
10 i
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