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 9.3.1P
To determine
(a)
To check:
If the beam satisfies the provisions of AISC or not.
To determine
(b)
To check:
If the beam satisfies the provisions of AISC or not.
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Situation:
A beam has a width of 300 mm and total depth of 600 mm strength f'c-36 MPa. Steel yield strength fy=415 MPa
The section is to be reinforced for tension only and the effective concrete cover is 65 mm.
Which of the following most nearly gives the value of our balanced steel ratio?
a. 0.00370
b. 0.03456
C. 0.02860
d. 0.03522
Which of the following most nearly gives the value of our balanced distance of the cuter most fiber of
compression fiber to our neutral axis?
a. 313.256 mm
b. 354.68 mm
C.
333.333 mm
d. 322.435 mm
Which of the following most nearly gives the value of our balanced depth of compression block?
a. 248.412 mm
b.
266.2676 mm
C.
301.478 mm
d. 281.261 mm
A 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.
A beam cast monolithically has the following properties: bf=1200mm, t or hf = 110mm, bw=380mm and h=800mm. It is reinforced with 10D32mm grade 420MPa bars. Concrete strength is assumed to be 27.5MPa and the centroid of tension reinforcement is located 665mm from the outermost compression fiber.
i.Determine the design strength in kN-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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
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- Design a one-way slab with a simple span of 3.0m. The slab is to carry a uniform live load of 7.15 kPa. Assume f’c = 27.6 MPa and fy = 276 MPa for main and temperature bars. use: -12 mm dia RSB for main reinforcement -10 mm dia RSB for temperature and shrinkage reinforcement hello please answer this thanks ☺️arrow_forwardRCC.arrow_forwardA simply supported beam is reinforced with 5-p25 mm at the bottom and 2-020 mm at the top of the beam. Concrete covering to centroid of reinforcement is 70 mm at the top and 64 mm at the bottom of the beam. The beam has a gross depth of 450 mm and gross width of 300 mm. fc'= 28 MPa, fy = 415 MPa. Assume bars laid out in single layer. Calculate the following if the limiting tensile steel strain is 0.004 for a ductile failure: Depth of the neutral axis from the extreme concrete compression fiber to the nearest whole number = mm Design strength of the beam section to the nearest whole number = kN -m Maximum service uniform live load over the entire span in addition to a DL = 20 kN/m (including the weight of the beam) if it has a span of 6 m = kN/m (to the nearest whole number)arrow_forward
- concrete floor slab 100 mm thick is cast monolithic with concrete beam 2.0 m on centers. The beams have a span of 4.2 m and have a web width of 250 mm, and overall depth of 450 mm. The tensile reinforcement consists of 4-25 mm bars in two rows with 25 mm vertical clear spacing. Use material strength f’c = 21 MPa and fy = 415 MPa. Calculate the following considering a T-geometry; a) effective flange width of an interior beam in mm b) depth of uniform stress block at ultimate stage in mm ( round of to nearest whole number) c) tensile steel strain compatible with concrete strain if 0.003 ( round if 3 decimal places)arrow_forwardA 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 ASDarrow_forward1. A two span beam subjected to shear and flexure only is reinforced as follows: SECTION: TOP BARS @ MIDSPAN: 2-⌀20mm @ FACE OF SUPPORTS: 5-⌀20mm SECTION: BOTTOM BARS @ MIDSPAN: 3-⌀20 mm @ FACE IF SUPPORTS: 2-⌀20 mm Given: Stirrup diameter, ds = 10 mm Concrete f'c = 21 MPa Steel rebar fy = 415 MPa Stirrup fy = 275 MPa Beam size b x h = 270 mm x 450 mm Assume all bars laid out in single layer. Calculate the following: a. Design Moment strength of section at midspan for positive bending = ______ kN·m (nearest whole number)arrow_forward
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