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 9.8.2P
To determine
(a)
The design strength of the member when using 44 studs per beam.
To determine
(b)
The design strength of the member when using 24 studs per beam.
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A rectangular beam having b=250mm and d=480mm is reinforced with five 25-mm diameter tension bars. If fc'=21MPa and fy=345MPa, what is the design flexural strength? Use 2001 NSCP
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a simply-supported rectangular concrete beam with a width of 300mm wide, 600 mm total depth, and a 5.8m long, is needed to accommodate both ceiling height clearance below and the superimposed loads. if f'c = 28mpa and steel fy = 415 mpa Compute the allowable resisting moment of the section shown using transformed area if allowable stresses are fc = 0.45, fs = fs- = 0.60, and n = 8. whats the allowable resisting moment of beam using strength design method?
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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- A rectangular beam has b = 350 mm and d = 430 mm with concrete compressive strength f’c = 30 MPa and steel yield strength fy = 345 Mpa. If compression steel area is required, it will be placed 70 mm from its cg up to extreme fiber. Calculate the following: a) Required steel area if the beam is subjected to dead load moment of 30 kN-m and live load moment of 25 kN-m b) If the beam has 5-16 mm diameter rebars, determine if it is compression-controlled, transition or tension-controlled. c) Required tension steel area at factored moment of 400 kN-m.arrow_forwardA 6-m clear-span simply supported beam carries a uniform dead load of 47.5 kN/m and a live load of 25 kN/m. The dimensions of the beam section are b = 350 mm, d = 550 mm. The beam is reinforced with four bars 25mm diameter in one row. It is required to design the necessary shear reinforcement. Given: f’c = 28 MPa and fy = 280 MPa.arrow_forwardPROBLEM 2: A reinforced concrete beam has a simple span of 4.5 m. and carries a dead load, including self-weight of 20KN/m and a live load of 35 KN/m. Steel covering is 75mm. Using fc’ = 28 MPa and fy = 415 MPa. What is the maximum moment due to the factored loads? What should be the bea`m width if ρ=0.50ρmax and d=1.5b? What is total area of steel required? Please explain where the values will be coming from. Thanks!arrow_forward
- A rectangular beam has b = 250 mm, d = 330 mm, fy = 414 MPa, f’c = 20.7 MPa. Determine the required steel area if the beam is required to carry a dead load moment of 50 kN-m and a live load moment of 30 kN-m. Use the 2015 NSCP.arrow_forwardA rectangular beam has a width of 300mm and depth of 330 mm with a steel cover of 70 mm. Using f'c=28 Mpa, fy=415 Mpa and width applied loadings of the following: • Wo = 50 kN/m • L = 15 m 1. Determine the required area of the bottom bars in mm2. 2. Determine the required area of the top bars (if needed) in mm2.arrow_forwardQ1- the reinforced flat plate roof slab system that shownin figure. Supports a service live load of 1.5 kN / m2 and a service superimposed dead load of 3.4 kN / m? in addition to its own weight. The slab is supported along its outer edges by a brick wall. Slab thickness is 200mm and wall thickness is 240mm. all interior columns are 300x600 mm. Using the ACI direct design method, design and detail the column strip top bars required at the continuous edges of strip A shown in the plan. Use fe-22 MPa andf-400MP.arrow_forward
- 11.A beam is to be designed for loads causing a maximum factored shear of 134.2 kN, using concrete with f'c = 35 MPa. Proceeding on the basis that the concrete dimensions will be determined by diagonal tension for a beam in which no web reinforcement is to be used. Determine the appropriate gross depth (mm) of the beam. Let d = 2b. Use db = 20mm and ds = 10 mm. Round up your answer to nearest whole number.arrow_forwardThe dimensions for a reinforced concrete beam are given as: b = 300mm d = 400mm d’ = 75mm It is to be designed for a service dead load moment of 30kN-m and a service live load moment of 40kN-m. Suppose f’c = 21MPa and fy = 276MPa, how many 20-mm bars are required to reinforced the beam in terms of steel area?arrow_forwardThe shear strength Vc of a normal weight beam cross section, given concrete strength fc, width of beam b and effective depth d is: a. 2/6 Vif^* c) b d b. 0.17 febd c. ½fcbd d. 0.17 Vife)bdarrow_forward
- 1. The singly reinforced concrete beam shown below is made of C35/45 concrete and is required to resist an ultimate sagging bending moment of 150kNm. The breadth, b is 250mm. Choose a suitable beam depth and determine the area of reinforcement required.2. Based on the propose design in Q1, make a design check.arrow_forwardUsing the Ultimate Strength Design Method, determine the required size (b x h)of a 6m rectangular simple beam and the amount of tension bars to sustain the following service loads. db= 16 mm fy = 420 MPa, fc’ = 21 MPa , wDL= 7 kN/m , wLL= 10 kN/m.arrow_forwardDesign a rectangular reinforced concrete beam to resist service moments of 120 kNm from dead loads and 110 kNm from live loads. The beam dimension are (b x d) 0.25m x 0.6m. Assume fck = 25 N/mm2 and fyk = 500 N/mm2.arrow_forward
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