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 9.8.10P
To determine
(a)
The W-shape and stud anchors by using composite beam tables and LRFD.
To determine
(b)
The W-shape and stud anchors by using composite beam tables and ASD.
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A composite floor system consists of steel beams supporting a formed steel deck and concrete slab. The deck is shown in Figure P, and the total depth from bottom of deck to top of slab is 61⁄2 inches. Lightweight concrete is used (unit weight =115 pcf), and the 28-day compressive strength is 4 ksi. The deck and slab combination weighs 53 psf. The beams are spaced at 12 feet, and the span length is 40 feet. There is a 20psf construction load, a partition load of 20 psf, other dead load of 10 psf, and a live load of 160 psf. The maximum permissible live-load deflection is Ly/360. Use the composite beam tables and select a W-shape with Fy= 50 ksi. Design the stud anchors. Use partial composite action and a lowerbound moment of inertia. a. Use LRFD. b. Use ASD
Design using the yield-line theory a simply supported square slab of size 5 m tosupport a service-imposed load of 3 kN/m2. Assume floor finishing load to be 1 kN/m2.Adopt M20 concrete and Fe 415 grade reinforcement. Assume diameter of bars used as10 mm, cover = 25 mm.
Use NSCP 2015:
design a one way slab based on the figure shown below. the slab has superimposed dead load 2.8 kpa and live load of 2.4 kpa. use 12mm diameter bars. also, use f'c=28 mpa and grade 60 rebars. the typical beam width is 300 mm. the beam spacing for the exterior span is 4.2 m while the typical beam spacing for the exterior spans is 4.5 m.
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 t-beam has the following properties; bf = 820mm, bw = 250mm, d = 470mm and tf = 100mm. Concrete compressive strength is 20.70 MPa and the steel yield strength is 414 MPa. Determine the number of bars need if MDL = 150 kN-m and MLL = 120 kN-m. Use 25 mm bar. What is the steel area needed?arrow_forwardA rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with 4-20-mm-diameter bars and at the top with 2-16-mm bars. Concrete cover to bar centroid at the top is 80 mm and at the bottom is 70 mm. Use concrete strength f'c = 21 Pa and steel yield strength fy = 415 MPa for 20-mm bars and fy = 275 MPa for 16-mm bars Determine the limiting tensile steel ratio for a tension controlled condition in positive or negative bending with the given material strengths.arrow_forward*Subject: Reinforced prestressed concrete - Civil Engineering *Please refer for my attached formula or guidelines solve this problem A one way cantilever slab having a simple span of 2.0 m. The slab is to carry a uniform dead load of 2.5 KPa and uniform live load of 1.5 Kpa. Fc’=27.6 MPA, fy= 276 MPA for for main bars and temperature bars. Concrete weighs is 23.5 kN/m3. Determine the spacing of the main bars.arrow_forward
- A simply supported one way reinforced concrete floor slab has a span of 4 m. It carries a service live load of 9 kPa and a service dead load of 2 kPa. =21 MPa, =415 MPa. Use clear concrete cover of 20 mm.a) Determine the spacing of 16 mm main bars of the slab for minimum thickness as specified by the NSCP 2015.b) Determine the spacing of the 12 mm shrinkage and temperature bars for minimum thickness of slab.c) Determine the spacing of the 16 mm main bars of the thinnest possible slab allowed by the NSCP 2015.arrow_forwardA simply supported one way reinforced concrete floor slab has a span of 4 m. It carries a service live load of 9 kPa and a service dead load of 2 kPa. =21 MPa, =415 MPa. Use clear concrete cover of 20 mm.Determine the spacing of 16 mm main bars of the slab for minimum thickness as specified by the NSCP 2015.Determine the spacing of the 12 mm shrinkage and temperature bars for minimum thickness of slab.Determine the spacing of the 16 mm main bars of the thinnest possible slab allowed by the NSCP 2015.arrow_forwardA concrete one-way slab has a total thickness of 120 mm. The slab will be reinforced with 10 mm diameter reinforcing steel bars with fy = 276 MPa. Concrete Strength f’c= 21 MPa. Determine the required spacing of 10 mm RSB if the total factored moment acting on 1-meter width of slab is 25 kN-m. Clear cover is 25mm. Reduction factor is 0.9. Show the graph.arrow_forward
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