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(d) Check the minimum steel requirements A, criteria 1 = min in? A min criteria 2 = in? in? (governing criteria) %3D min (e) Check the strain of steel in extreme tension to verify the beam is tension- controlled. Compression block thickness, a , with the selected bars = Neutral axis of the beam (measure from top), c, = in in %3D (strain of steel in extreme tension) (strain limit for tension controlled) Et = &t_lim (f) Verify the final design moment capacity is adequate ft*kip ft*kip Mn -

(d) Check the minimum steel requirements A, criteria 1 = min in? A min criteria 2 = in? in? (governing criteria) %3D min (e) Check the strain of steel in extreme tension to verify the beam is tension- controlled. Compression block thickness, a , with the selected bars = Neutral axis of the beam (measure from top), c, = in in %3D (strain of steel in extreme tension) (strain limit for tension controlled) Et = &t_lim (f) Verify the final design moment capacity is adequate ft*kip ft*kip Mn -

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Please answer d,e,f

Design for a simply supported 30 ft span interior T-beam, as shown in figure below, to safely carry 495 psf of additional dead load (self-weight not included) and 400 psf of live load. The thickness of the slab or flange is 4" and the beams are spaced at 10 ft on-center. The dimensions of the T-beam have been selected for architectural reasons (see figure). Limit your design to #10 bar(s) placed in two layers (see figure for the locations of the two layers of rebars). Use Grade 60 steel and 3 ksi concrete. Assume density of reinforced concrete 150 pcf when computing the self-weight. %3D slab is continuous to next beam T-beam 10 ft o.c. slab is continuous to next beam 30 ft o.c. column / support br 2 layers of #10 bars 30" Gr. 60 steel 3000 psi concrete -2.5" 3" 18"
Transcribed Image Text:Design for a simply supported 30 ft span interior T-beam, as shown in figure below, to safely carry 495 psf of additional dead load (self-weight not included) and 400 psf of live load. The thickness of the slab or flange is 4" and the beams are spaced at 10 ft on-center. The dimensions of the T-beam have been selected for architectural reasons (see figure). Limit your design to #10 bar(s) placed in two layers (see figure for the locations of the two layers of rebars). Use Grade 60 steel and 3 ksi concrete. Assume density of reinforced concrete 150 pcf when computing the self-weight. %3D slab is continuous to next beam T-beam 10 ft o.c. slab is continuous to next beam 30 ft o.c. column / support br 2 layers of #10 bars 30" Gr. 60 steel 3000 psi concrete -2.5" 3" 18"
(d) Check the minimum steel requirements A min A, A, criteria 1 = in? criteria 2 = min in? in? (governing criteria) min (e) Check the strain of steel in extreme tension to verify the beam is tension- controlled. Compression block thickness, a , with the selected bars = Neutral axis of the beam (measure from top), c, = B1 = in %3D in %3D (strain of steel in extreme tension) (strain limit for tension controlled) Et = Et_lim (f) Verify the final design moment capacity is adequate ft*kip ft*kip Mn = Mn
Transcribed Image Text:(d) Check the minimum steel requirements A min A, A, criteria 1 = in? criteria 2 = min in? in? (governing criteria) min (e) Check the strain of steel in extreme tension to verify the beam is tension- controlled. Compression block thickness, a , with the selected bars = Neutral axis of the beam (measure from top), c, = B1 = in %3D in %3D (strain of steel in extreme tension) (strain limit for tension controlled) Et = Et_lim (f) Verify the final design moment capacity is adequate ft*kip ft*kip Mn = Mn
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