(e) Select the smallest bar size for the stirrup and calculate the inside radius. (f) If the concrete beam is not exposed to weather and ground contact, what is the minimum cover? Check if the bottom cover provided is adequate. (g) Determine the minimum spacing for the primary reinforcing bars. Using the inside radius and minimum cover determined from part (e) and (f), calculate the available spacing, S . State clearly whether the spacing is enough?
(e) Select the smallest bar size for the stirrup and calculate the inside radius. (f) If the concrete beam is not exposed to weather and ground contact, what is the minimum cover? Check if the bottom cover provided is adequate. (g) Determine the minimum spacing for the primary reinforcing bars. Using the inside radius and minimum cover determined from part (e) and (f), calculate the available spacing, S . State clearly whether the spacing is enough?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
please answer e,f,g
![Problem 3)
14"
Gr. 60 steel
4500 psi concrete
stirrup size?
24"
27"
cover = ?
3 #11 bars
S
3"
cover = ?
inside radius = ?
), minimum (P ), balanced (P), and maximum (P ) steel ratios
(a) Determine the provided (p,
(for tension controlled or ø =0.9).
min
max
prov
(b) Calculate the nominal moment capacity, Mn.
(c) Calculate the strain in steel (ɛ, ) when concrete reaches its ultimate strain ( ɛ, =0.003) and determine
if the reduction factor (ø) is equal to 0.9 [refer to ACI 318-19 Fig R21.2.2b]
(d) Calculate the design moment capacity, ØM,.
(e) Select the smallest bar size for the stirrup and calculate the inside radius.
(f) If the concrete beam is not exposed to weather and ground contact, what is the minimum cover? Check
if the bottom cover provided is adequate.
(g) Determine the minimum spacing for the primary reinforcing bars. Using the inside radius and minimum
cover determined from part (e) and (f), calculate the available spacing, S . State clearly whether the
spacing is enough?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2867fa33-d354-46d8-b33d-713eb0a8e48f%2F5233e6a6-6b05-4c6b-a2ce-954002e69690%2Fzkqij6p_processed.png&w=3840&q=75)
Transcribed Image Text:Problem 3)
14"
Gr. 60 steel
4500 psi concrete
stirrup size?
24"
27"
cover = ?
3 #11 bars
S
3"
cover = ?
inside radius = ?
), minimum (P ), balanced (P), and maximum (P ) steel ratios
(a) Determine the provided (p,
(for tension controlled or ø =0.9).
min
max
prov
(b) Calculate the nominal moment capacity, Mn.
(c) Calculate the strain in steel (ɛ, ) when concrete reaches its ultimate strain ( ɛ, =0.003) and determine
if the reduction factor (ø) is equal to 0.9 [refer to ACI 318-19 Fig R21.2.2b]
(d) Calculate the design moment capacity, ØM,.
(e) Select the smallest bar size for the stirrup and calculate the inside radius.
(f) If the concrete beam is not exposed to weather and ground contact, what is the minimum cover? Check
if the bottom cover provided is adequate.
(g) Determine the minimum spacing for the primary reinforcing bars. Using the inside radius and minimum
cover determined from part (e) and (f), calculate the available spacing, S . State clearly whether the
spacing is enough?
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