In the section shown, a steel diagonal brace has a tension stress on it (from wind load) = 18.12 ksi. Calculate the effect of 55 degree Fahrenheit rise in temperature that affect the diagonal brace (pinned connections). If the total maximum allowed stress due to tension is 21.6 ksi. Is the stress developed due to thermal (in addition to wind) will be safe compared to the max allowed (21.6 ksi)? coef of thermal expansion for steel = 6.5 x 10-6 in/in/F E (modulus of elasticity - steel) = 29,000 ksi Hint for solving: Calculate the total stress from thermal expansion and add it to the tension stress from wind Stress from thermal expansion is given by the equation fthermal in ksi = � x ΔT x E (mod of elasticity)
In the section shown, a steel diagonal brace has a tension stress on it (from wind load) = 18.12 ksi. Calculate the effect of 55 degree Fahrenheit rise in temperature that affect the diagonal brace (pinned connections).
If the total maximum allowed stress due to tension is 21.6 ksi. Is the stress developed due to thermal (in addition to wind) will be safe compared to the max allowed (21.6 ksi)?
coef of thermal expansion for steel = 6.5 x 10-6 in/in/F
E (modulus of elasticity - steel) = 29,000 ksi
Hint for solving:
Calculate the total stress from thermal expansion and add it to the tension stress from wind
Stress from thermal expansion is given by the equation fthermal in ksi = � x ΔT x E (mod of elasticity)
Step by step
Solved in 3 steps with 3 images
