A reinforced concrete slab is built integrally with its supports and consists of two equal spans,each with a clear span of 14 ft. The service live load is 100 psf and service dead load (whichincludes selfweight) is 81 psf. Considering the following information:fy = 60000 psif'c = 4000 psib = 12 in (assume we are designing for a 12' strip)h = 6.5 ind = 5.5 ina) Find the factored critical moments based on ACI moment coefficients.b) Find Pmaxc) Find Pmin and As,min = Pmin × b × dd) Assuming we are providing 1#6 at every slab strip (every 12" on center), check theprovided reinforcement with Pmax and Pmin:e) Assuming maximum factored moment is 5.6 kip-ft. check if 1#6 at every 12" on center isadequate to carry the maximum factored moment.

"Since you have posted a question with multiple sub-parts, the first three sub-parts will be only…

Answered: a) Find the factored critical moments…

a) Find the factored critical moments based on ACI moment coefficients. b) Find Pmax c) Find pmin and As,min = Pmin × b ×d

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter9: Composite Construction

Section: Chapter Questions

Problem 9.1.3P

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Question

A reinforced concrete slab is built integrally with its supports and consists of two equal spans,
each with a clear span of 14 ft. The service live load is 100 psf and service dead load (which
includes selfweight) is 81 psf. Considering the following information:
fy = 60000 psi
f'c = 4000 psi
b = 12 in (assume we are designing for a 12' strip)
h = 6.5 in
d = 5.5 in
a) Find the factored critical moments based on ACI moment coefficients.
b) Find Pmax
c) Find Pmin and As,min = Pmin × b × d
d) Assuming we are providing 1#6 at every slab strip (every 12" on center), check the
provided reinforcement with Pmax and Pmin:
e) Assuming maximum factored moment is 5.6 kip-ft. check if 1#6 at every 12" on center is
adequate to carry the maximum factored moment.

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