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IJsing transformed area, what allowable uniform load, w, can the beam below support in addition to...
Problem 2.17 Using transformed area, what allowable uniform load can this beam support in addition to...
Problem 2.17 Using transformed area, what allowable uniform load can this beam support in addition to its own weight for a 28-ft simple span? Concrete weight = 150 lb/ft 24,000 psi, and fe = 1800 psi. (Ans. 2.757 k/ft) 8 in. 16 in. 6 in. 4 in. 8 in. 32 in. n=8 17 in. 5 #10 3 in 20 in.
Concrete design Problem #1: Design a rectangular beam section, i.e. select b, d, h, and the...
Concrete design
Problem #1: Design a rectangular beam section, i.e. select b, d, h, and the required area of tension steel, A, at mid-span for a 22 ft-span simply supported beam that support its own weight, a superimposed service dead load of 1.25 kip/ft, and a uniform service live load of 2 kip/ft. Start by assuming the self-weight of the beam W-410 lbs/ft, b-0.7d, and use fc4500 psi and fy-60, 000 psi Note: Provide a detailed sketch for the final...
8:. Determi t, ne the nominal uniform load that this beam can support,including its own weight,if - 60,000 psi and...
8:. Determi t, ne the nominal uniform load that this beam can support,including its own weight,if - 60,000 psi and f. 4000 psi. (10 pts.) 23" 26" 3#9 18'
14.54 A simply supported rectangular beam with a span of 6 ft has a concentrated load of 4.1 kip ...
14.54 A simply supported rectangular beam with a span of 6 ft has a concentrated load of 4.1 kip at midspan. Se- lect the lightest rectangular wood beam that can safely support the loads (neglect the weight of the beam). The allowable stress in bending is 1200 psi and in shear parallel to the grain 100 psi
14.54 A simply supported rectangular beam with a span of 6 ft has a concentrated load of 4.1 kip at midspan. Se- lect...
. Design a beam for a 30-ft simple span to support the working uniform loads of...
. Design a beam for a 30-ft simple span to support the working uniform loads of wo 1.25 k/ft (includes beam self-weight) and wi-1.75 k/ft. The maximum permissible total load deflection under working loads is 1/360 of the span. Use 50 ksi steel and consider moment, shear and deflection. The beam is to be braced laterally at its ends and the mid-span only. (25-POINTS)
Figure 2 shows a simply supported beam and the cross section at mid span. The beam...
Figure 2 shows a simply supported beam and the cross section at mid span. The beam supports a uniform service (unfactored) dead load consisting of its own weight plus 1.4 kips/ft and a uniform service (unfactored) live load of 1.5 kips/ft. The concrete strength is 3500 psi, and the yield strength of the reinforcement is 60,000 psi. The concrete is normal-weight concrete. For the midspan section shown in Figure 2, compute фМп and show that it exceeds Mu. WD 1.4...
The simply supported beam shown spans 20 ft and, in addition to its own weight carries...
The simply supported beam shown spans 20 ft and, in addition to its own weight carries a uniformly distributed service dead load of 1.75 kips/ft and a uniformly distributed live load of 3.0 kips/ft. Five no. 9 bars running the full length of the beam arc used as flexural reinforcement. Assume f,-60,000 psi and fc4000 psi, No. 3 stirrups are used. a. Determine the theoretical spacing of stirrups at the critical section using the detailed expression for the shear strength...
Problem 2: the most economical (lightest) W shape to support a uniformly distributed load of 4k/ft...
Problem 2: the most economical (lightest) W shape to support a uniformly distributed load of 4k/ft (This load includes the weight of the beam) on a simply supported span of 25 ft as shown. Assume the yield stress of the steel to be 50 ksi. The deflection limit (Allowable) is Select 360 w 4 kips/ft 25'-0" R 50 kips RB 50 kips
A steel I-beam with a span of 20 feet will support both a concentrated load of...
A steel I-beam with a span of 20 feet will support both a concentrated load of 15 kips at the beam center and a uniformly distributed load of 2 kips/ft along the entire beam length. The steel beam is Grade 50 (Fy= 50,000 psi). i) Calculate for the lightest W-shape section that will safely carry the load, with the depth not to exceed 17 inches. Provide sketches. ii) The analysis is to include (a) bending strength, (b) shear strength, and...
A reinforced concrete beam shown in Figure below is 15-in. wide and has effective depth of31 in. ...
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 2.17 Using transformed area, what allowable uniform load can this beam support in addition to its own weight for a 28-ft simple span? Concrete weight = 150 lb/ft 24,000 psi, and fe = 1800 psi. (Ans. 2.757 k/ft) 8 in. 16 in. 6 in. 4 in. 8 in. 32 in. n=8 17 in. 5 #10 3 in 20 in.
Concrete design
Problem #1: Design a rectangular beam section, i.e. select b, d, h, and the required area of tension steel, A, at mid-span for a 22 ft-span simply supported beam that support its own weight, a superimposed service dead load of 1.25 kip/ft, and a uniform service live load of 2 kip/ft. Start by assuming the self-weight of the beam W-410 lbs/ft, b-0.7d, and use fc4500 psi and fy-60, 000 psi Note: Provide a detailed sketch for the final...
8:. Determi t, ne the nominal uniform load that this beam can support,including its own weight,if - 60,000 psi and f. 4000 psi. (10 pts.) 23" 26" 3#9 18'
14.54 A simply supported rectangular beam with a span of 6 ft has a concentrated load of 4.1 kip at midspan. Se- lect the lightest rectangular wood beam that can safely support the loads (neglect the weight of the beam). The allowable stress in bending is 1200 psi and in shear parallel to the grain 100 psi
14.54 A simply supported rectangular beam with a span of 6 ft has a concentrated load of 4.1 kip at midspan. Se- lect...
. Design a beam for a 30-ft simple span to support the working uniform loads of wo 1.25 k/ft (includes beam self-weight) and wi-1.75 k/ft. The maximum permissible total load deflection under working loads is 1/360 of the span. Use 50 ksi steel and consider moment, shear and deflection. The beam is to be braced laterally at its ends and the mid-span only. (25-POINTS)
Figure 2 shows a simply supported beam and the cross section at mid span. The beam supports a uniform service (unfactored) dead load consisting of its own weight plus 1.4 kips/ft and a uniform service (unfactored) live load of 1.5 kips/ft. The concrete strength is 3500 psi, and the yield strength of the reinforcement is 60,000 psi. The concrete is normal-weight concrete. For the midspan section shown in Figure 2, compute фМп and show that it exceeds Mu. WD 1.4...
The simply supported beam shown spans 20 ft and, in addition to its own weight carries a uniformly distributed service dead load of 1.75 kips/ft and a uniformly distributed live load of 3.0 kips/ft. Five no. 9 bars running the full length of the beam arc used as flexural reinforcement. Assume f,-60,000 psi and fc4000 psi, No. 3 stirrups are used. a. Determine the theoretical spacing of stirrups at the critical section using the detailed expression for the shear strength...
Problem 2: the most economical (lightest) W shape to support a uniformly distributed load of 4k/ft (This load includes the weight of the beam) on a simply supported span of 25 ft as shown. Assume the yield stress of the steel to be 50 ksi. The deflection limit (Allowable) is Select 360 w 4 kips/ft 25'-0" R 50 kips RB 50 kips
A steel I-beam with a span of 20 feet will support both a concentrated load of 15 kips at the beam center and a uniformly distributed load of 2 kips/ft along the entire beam length. The steel beam is Grade 50 (Fy= 50,000 psi). i) Calculate for the lightest W-shape section that will safely carry the load, with the depth not to exceed 17 inches. Provide sketches. ii) The analysis is to include (a) bending strength, (b) shear strength, and...
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...
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