Consider a beam with a width of 14 IN and an effective depth of 24 IN....
Consider a beam with a width of 14 IN and an effective depth of 24 IN. What is the maximum area of reinforcement which can be used? The concrete strength f’c = 4000 PSI and the yield strength of the reinforcing steel fy = 60,000 PSI. (Hint: the maximum steel will have a strain of 0.004).
Homework Answers
For beams, Maximum area of reinforcement
= 4% of cross section area of beam
= 0.04 *b*d
=0.04*14*24
= 13.44 in2
Thank you :)
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Consider a beam with a width of 14 IN and an effective depth of
24 IN....
A reinforced concrete beam has the following properties: Beam width, b = 320 mm Effective depth,...
A reinforced concrete beam has the following properties:
Beam width, b = 320 mm
Effective depth, d = 640 mm
Concrete strength, f’c = 21 MPa
Reinforcing steel strength, fy = 400 MPa
If the factored shear force at the critical section is 210,000 N,
compute the nominal shear carried
by the shear reinforcement.
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A reinforced concrete beam has the following properties:
Beam width, b = 320 mm
Effective depth, d = 640 mm
Concrete strength, f’c = 21 MPa
Reinforcing steel strength, fy = 400 MPa
If the factored shear force at the critical section is 210,000 N,
compute the nominal shear carried
by the shear reinforcement.
EXERCISE - USD SHEAR 1. A reinforced concrete beam has the following properties: Beam width, b = 320 mm Effective depth, d = 640 mm Concrete...
Find the effective flange width.
Left side: 24 feet apart
Bottom: 32 feet apart
T-Beam: 24 in x 36 in
2t's 321 24 Use a 24" x 36" beam h=360 concrete density = 150 per LL = 50. pst fc = 4000 psi! Grade led (fy = 60.000 psi)
Problem 2 (25 points) A rectangular reinforced concrete beam has a width b-15 inches and effecti Concrete com ve depth d-24 inches. orcement fy- 60 ksi. imate load - 6 k/R pressive strength fe -4,000 psi and yield stress of steel reinf The beam is simply supported and subjected to a uniformly distributed ulti that includes the weight of the beam. Span is 28 feet. Assume interior exposure. s and show the proposed shear reinforcement Design the beam for shear...
A reinforced concrete beam shown in Figure below is 15-in. wide and has effective depth of31 in. The factored loads are shown. (The factored uniform load includes the weight of the beam). Design the web reinforcement using the Vu diagram shown in the Figure (for a symmetric half). Assume No. 3 stirrups,fc '-4000 psi and fy=fyt-60000psi. 100 kip 100 kip d-31 in. 15 ft clear span As s) 102.5 kip se 2.5 ki @y、阪、もw cl.* 3..-K: ps
A reinforced concrete...
Problem 2 Determine the nominal moment capacity for the reinforced concrete beam shown. The beam cross section has a width 10 inch and a depth 20 inch. The beam is reinforced with a tension steel reinforcement of 3#8 with an area of steel # 2.37 inch Assume grade 60 steel with a yield strss, Fy 60 ksi d 20 3#8 2.37/ 2 As B-10"
Problem 2 Determine the nominal moment capacity for the reinforced concrete beam shown. The beam cross...
Problem 3 (5 points) A rectangular concrete beam of width b 24 in. is limited by architectural considerations to a maximum total depth h - 17 in. It must carry a design moment demand, M 400 kips-ft. Design the flexural reinforcement for this member. Use compression steel if needed. The concrete material has compressive strength of fe- 4 ksi. The steel conforms to ASTM A615 Gr. 60. Select reinforcement to provide the needed areas and show a sketch of your...
A three-span continuous beam shown below has an effective depth of d = 600mm, and width of bw = 300mm. In the transverse direction, the beams spacing are 4m and slab thickness hq = 180mm, and the supports have a width of 300mm. Wų = 190KN/m, use material strength f1 = 28MPa and fy = 420MPa, Find the following: a) Compute maximum bending moment and maximum shear forces? b) Design the beam A-C and provide sketches that indicates reinforcement positions?...
15 points 9. A rectangular concrete beam of width b=24 in. is limited by architectural considerations to a maximum total depth h=16 in. It must carry a total factored load moment Mu 400 k-ft. Design the flexural reinforcement for this member, using compression steel if necessary. Allow 3-in, to the center of the bars from the compression or tension face of the beam. Material strengths are fy=60 ksi and fc=4 ksi. Select reinforcement to provide the needed areas, complete necessary...
2. A rectangular beam, 400 x 600 mm gross dimension, is cast using a concrete strength of fc 30 MPa, reinforced with 5-25 mm diameter steel bar at the effective depth of 500 mm. If is subjected to a moment, M 130 kN-m. Determine the following: Magnitude of the bending moment that cracks the singly-reinforced beam section. (10 pts) b. For the computed cracking moment, determine the maximum compressive stress in the concrete and the stress in the tension steel....
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