Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN: 9781337094740
Author: Segui, William T.
Publisher: Cengage Learning
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Chapter 9, Problem 9.7.2P
To determine
The flexural strength of the composite section.
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From load analysis, the following are the factored design forces result: Mu = 440 KN-m, Vu = 280 KN. The beam has a width of 400 mm and a total depth of 500 mm. Use f’c = 20.7 MPa, fy for main bars is 415 MPa, concrete cover to the centroid of the bars both in tension and compression is 65 mm, steel ratio at balanced condition is 0.02, lateral ties are 12 mm diameter. Normal weight concrete. Calculate the required area of compression reinforcement in mm2 due to the factored moment, Mu. Express your answer in two decimal places.
Determine the ultimate moment capacity of a reinforced concrete T-Beam with the following properties: Flange Width, bf = 1500 mm Slab Thinckness, tf = 100 mm Beam Width , bw = 250 mm Effective depth, d = 600mm Stength of Concrete, f’c = 20.7 MPa Strength of Steel, fy = 415 MPa Beam is reinforced with 6 – 28mm dia. RSB
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Q/for simple supported beam rectangular shown in fig find or design reinforcement for the beam (in cluding self weight), (WD=11kN/m), (WL=24KN/m) , (fc'=35MPa) and (fy=420MPa).
Chapter 9 Solutions
Steel Design (Activate Learning with these NEW titles from Engineering!)
Ch. 9 - Prob. 9.1.1PCh. 9 - Prob. 9.1.2PCh. 9 - Prob. 9.1.3PCh. 9 - Prob. 9.1.4PCh. 9 - Prob. 9.1.5PCh. 9 - Prob. 9.1.6PCh. 9 - A W1422 acts compositely with a 4-inch-thick floor...Ch. 9 - Prob. 9.2.2PCh. 9 - Prob. 9.3.1PCh. 9 - Prob. 9.3.2P
Ch. 9 - Prob. 9.4.1PCh. 9 - Prob. 9.4.2PCh. 9 - Prob. 9.4.3PCh. 9 - Prob. 9.4.4PCh. 9 - Prob. 9.4.5PCh. 9 - Prob. 9.5.1PCh. 9 - Prob. 9.5.2PCh. 9 - Prob. 9.5.3PCh. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Prob. 9.7.1PCh. 9 - Prob. 9.7.2PCh. 9 - Prob. 9.7.3PCh. 9 - Prob. 9.7.4PCh. 9 - Prob. 9.8.1PCh. 9 - Prob. 9.8.2PCh. 9 - A beam must be designed to the following...Ch. 9 - Prob. 9.8.4PCh. 9 - Prob. 9.8.5PCh. 9 - Prob. 9.8.6PCh. 9 - Prob. 9.8.7PCh. 9 - Prob. 9.8.8PCh. 9 - Use the composite beam tables and select a W-shape...Ch. 9 - Prob. 9.8.10PCh. 9 - Prob. 9.10.1PCh. 9 - Prob. 9.10.2P
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- Note For Problems 9.6-1 through 9.6-5, use the lower-bound moment of inertia for deflection of the composite section. Compute this as illustrated in Example 9.7. 9.6-4 For the beam of Problem 9.4-1, a. Compute the deflections that occur before and after the concrete has cured. b. If the total deflection after the concrete has cured exceeds L240 select another steel shape using either LRFD or ASD.arrow_forwardA reinforced concrete T-beam has the following properties: Flange width, bf = 1,200 mm Width of web, bw = 300 mm Gross depth, h = 500 mm Effective depth, d = 420 mm Concrete strength, f’c = 21 MPa Steel strength, fy = 415 MPa Calculate the design moment strength of a typical interior beam. = [M] kN⋅m (whole number)arrow_forward13. A floor slab 100 mm thick is cast monolithically with beams 250 mm wide 450 mm deep spaced 1.2 m on centers, on simple supports over a span of 5.0 m. The floor supports a service live load of 2.1 kPa. Using ?c= 21 MPa, rebar strength fy = 415 MP, calculate the following if a typical interior beam is reinforced with 3- 16-mm-dia. flexure bars at the bottom enclosed with 10-mm-dia. stirrups: 1. Nominal moment capacity (kN:m) of a typical interior beam in positive bending considering T-beam geometry. A. 96.66 B. 86.99 C. 91.10 D. 81.99 2. Maximum factored uniformly distributed load (kN/m) a typical interior beam can sustain against positive bending. A. 30.93 B. 27.83 C. 26.23 D. 29.15 3. Maximum service superimposed dead load in kPa. A. 17.73 B. 11.08 C. 16.52 D. 14.77arrow_forward
- The three parts of this problem refer to the floor plan shown in the figure. Assume that the entire floor system isconstructed sand normal weight concrete that has compressive strength, fc= 4000psi. Also assume that thelongitudinal steel has a yield strength, fy=40 ksi, and that the transverse steel has a yield strength off yt= 40ksi. The slab thickness is 6”, with a superimposed dead load of 18 psf and live load of 26 psf.a).Design the spandrel beam between columns B1 and C1 for bending, shear, and torsion. Check that all of theappropriate ACI Code requirements for strength, minimum-reinforcement area, and reinforcement spacing are satisfied.b): Design the spandrel beam between columns A1 and A2 for bending, shear, and torsion. Check that all of theappropriate ACI Code requirements for strength, minimum-reinforcement area, and reinforcement spacing are satisfied.c). Design the spandrel beam between columns B2 and C2 for bending, shear, development length, andsplicing. Check that all…arrow_forward5. A doubly reinforced rectangular beam has 3 - 20 mmɸ compression bars and 6 - 28 mmɸ.The breadth and overall depth are 410 mm and 650 mm respectively. Use 10 mmɸ stirrups,40 concrete cover, fc’ = 20.7 MPa, and fy = 345 MPa. Calculate the following(a) d (b) As’ (c) cbalance(d) a (e) fs’ (f) Cc(g) Cs(h) Abalance(i) check if compression steel yields (fs’ > fy)(j) design strength of the beam ( ? Mn)arrow_forwardA 4.5m simply supported rectangular reinforced concrete beam has a width of 300 mm, effective depth of 530 mm and total depth of 600 mm. The beam is to be reinforced with 20 mm diameter bars. The concrete strength fc' = 21 MPa and the steel yield strength fy = 275 MPa. The beam carries a 100-mm-thick concrete slab that is 4m wide. The unit weight of concrete is 24 kN/m3. Floor live load is 2.4 kPa. At ultimate condition, U = 1.2 DL + 1.6 LL 2.1 Calculate the factored moment * 2.2 Determine the governing steel ratio following the requirements of NSCP. * 2.3 Determine the minimum number of 20 mm diameter bars required for tension reinforcement.arrow_forward
- Given the following elements of T-Beam Flange Width, bf = 1000 mm Flange Thickness, tf = 150 mm Width of Beam, bw = 350 mm Effective Depth , d = 480 mm Concrete Strength, f’c = 28 Mpa Steel Strength, fy = 415 Mpa If the beam is reinforced for tension only, determine the following: (a.) Balanced steel area. (b.) Nominal and ultimate balanced moment capacity. (c.) Maximum steel area (d.) Nominal and ultimate maximum moment capacity. hello please answer this thank youarrow_forwardA composite floor system uses formed steel deck of the type shown in Figure . The beams are W18 x 50, and the slab has a total thickness of 41⁄2 inches from top of slab to bottom of deck. The effective slab width is 90 inches, and the span length is 30 feet. The structural steel is A992, and the concrete strength is f,c= 4 ksi. Compute the nominal flexural strength with two 3⁄4-inch 3 31⁄2-inch studs per rib.arrow_forward*Subject: Reinforced prestressed concrete - Civil Engineering *Please refer for my attached formula or guidelines solve this problem A one-way both ends continuous slab is to support the moments tabulated. Consider L= 5m. Fc’ = 21MPa and fy = 415MPa. Dead load Moments: +42KN.m at midspan ;-67KN.m at support; Live Load Moment: +40KN .m at midspan; -44KN.m at support. Determine the spacing of the temperature bars.arrow_forward
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