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normal stresses in the concrete and in the

normal stresses in the concrete and in the

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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4-87 Nine 4-in.-diameter steel (E = 30,000 ksi) rein- forcing bars were used when the short concrete (E = 4500 ksi) pier shown in Fig. P4-87 was constructed. After a load P of 150 kip was applied to the pier, the temperature increased 100°F. The coefficients of ther- mal expansion for steel and concrete are 6.6(106)/°F and 6.0(106)/°F, respectively. Determine (a) The normal stresses in the concrete and in the steel bars after the temperature increases. (b) The change in length of the pier resulting from the combined effects of the temperature change and the load. 10 in. 10 in. P = 150 kip Rigid cap 24 in.
Transcribed Image Text:4-87 Nine 4-in.-diameter steel (E = 30,000 ksi) rein- forcing bars were used when the short concrete (E = 4500 ksi) pier shown in Fig. P4-87 was constructed. After a load P of 150 kip was applied to the pier, the temperature increased 100°F. The coefficients of ther- mal expansion for steel and concrete are 6.6(106)/°F and 6.0(106)/°F, respectively. Determine (a) The normal stresses in the concrete and in the steel bars after the temperature increases. (b) The change in length of the pier resulting from the combined effects of the temperature change and the load. 10 in. 10 in. P = 150 kip Rigid cap 24 in.
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