A nominal 10 × 40 in concrete masonry beam built from lightweight CMU is reinforced with two No. 5 Grade 60 bars for tension. The centroid of reinforce- ment is located at 6 in. from the bottom of the...

A nominal 10 × 40 in concrete masonry beam built from lightweight CMU is

reinforced with two No. 5 Grade 60 bars for tension. The centroid of reinforce-

ment is located at 6 in. from the bottom of the beam (Fig. P4.7). The beam carries

a service live load of 1000 lb/ft in addition to its own weight over an effective

span of 15 ft 8 in. The grout weight is 140 lb/ft3. f ′ = 1500 psi. Check if the beam m

is adequate to carry the imposed loads.

9.63" (10" nominal)

40"

FIGURE P4.6

d = 34"

2#5

40"

FIGURE P4.7

d = 34"

Sep 06, 2022

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