A timber column, 8 in. by 8 in. in cross section, is reinforced on all four sides by steel plates, each plate being 8 in. wide and t in. thick. Determine the smallest value of t for which the column can support an axial load of 300 kips if the working stresses are 1200 psi for timber and 20 ksi for steel. The moduli of elasticity are 1.5 x 10“ psi for timber and 29 x 10 psi for steel. SUMMARY OF ANSWERS In.
A timber column, 8 in. by 8 in. in cross section, is reinforced on all four sides by steel plates, each plate being 8 in. wide and t in. thick. Determine the smallest value of t for which the column can support an axial load of 300 kips if the working stresses are 1200 psi for timber and 20 ksi for steel. The moduli of elasticity are 1.5 x 10“ psi for timber and 29 x 10 psi for steel. SUMMARY OF ANSWERS In.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:05. A timber column, 8 in. by 8 in. in cross section, is reinforced on all four sides by steel plates, each plate
being 8 in. wide and t in. thick. Determine the smallest value of t for which the column can support an
axial load of 300 kips if the working stresses are 1200 psi for timber and 20 ksi for steel. The moduli of
elasticity are 1.5 x 10° psi for timber and 29 x 10° psi for steel.
SUMMARY OF ANSWERS
In.
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