Steel Design (Activate Learning with these NEW titles from Engineering!)
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 9.4.1P
To determine

(a)

Whether the beam W21×57 is satisfactory by using LFRD method.

To determine

(b)

Whether the beam W21×57 is satisfactory by using ASD method.

To determine

(c)

Number of studs required.

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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.
= 1. The beam shown is interior exposure and is reinforced with 4-#8 Grade 60 bars. 11" cover over #3 stirrup, also fy = 60 ksi in the region of the beam where the #8 bars are developed, these stirrups are at 6" centers. f = 4.5 ksi, lightweight concrete, no fct splitting tensile strength is given. #8 bars are epoxy coated. (1) Find the value for Ktr using ACI 318-22 Equation (25.4.2.4b) (2) Find la using ACI 318-22 Equation (25.4.2.4a) 4-#8 GR 60 16 in. #3 stirrup at 6" on center 24 in
2. Determine if the composite beam pictured below is adequate for this application (this includes bending, shear, deflection and shear stud limit states). The dead load for this beam is 10 psf plus the weight of the deck, which is made from normal weight concrete. I 5" 5" Normal weight slab fc=4000 psi W24x94 Span length = 30' Service Live Load = 100 psf 3/4" Diameter Shear Connectors 8' o.c. typical Fu=60 ksi (shear connectors)
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Steel Design (Activate Learning with these NEW ti...
Civil Engineering
ISBN:9781337094740
Author:Segui, William T.
Publisher:Cengage Learning