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. W24x94- 8' 0.c. typical I[ 11 5" 5" Normal weight slab fc=4000 psi Span length = 30' Service Live Load = 100 psf 3/4" Diameter Shear Connectors Fu=60 ksi (shear connectors)

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. W24x94- 8' 0.c. typical I[ 11 5" 5" Normal weight slab fc=4000 psi Span length = 30' Service Live Load = 100 psf 3/4" Diameter Shear Connectors Fu=60 ksi (shear connectors)

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter9: Composite Construction

Section: Chapter Questions

Problem 9.7.4P

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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. 9.6-5 For the beam of Problem 9.4-2. a. Compute the deflections that occur before and after the concrete has cured. b. It the live toad deflection exceeds L360 , select another steel shape using either LRFD or ASD.
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. 9.6-2 Compute the following deflections for the beam in Problem 9.2-2. a. Maximum deflection before the concrete has cured. b. Maximum total deflection after composite behavior has been attained.
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.
Use the composite beam tables and select a W-shape and stud anchors for the following conditions: Span length = 18 6 Beam spacing = 9 ft Total slab thickness = 51 2 in. (the slab and deck combination weighs 57 psf). Lightweight concrete with a unit weight of 115 pcf is used Construction load = 20 psf Partition load = 20 psf Live load = 225 psf Fy=50 ksi and fc=4 ksi A cross section of the formed steel deck is shown in Figure P9.8-9. The maximum live-load deflection cannot exceed L/360 (use a lower-bound moment of inertia). a. Use LRFD. b. User ASD.
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.
Homework3 A simply supported concrete slab given the section depth is 100mm, concrete grade is C30 and reinforcement grade is HPB300. The span of slab is 19=2.38m. The live load applied on the slab is ge=2kN/m2 and the dead load include: 1. Its self-weight given concrete (include reinforcement) bulk density is 28kN/m3 2. Terrazzo floor and fine stone cushion layer is 30mm(bulk density is 22kN/m) and the ceiling plaster mortar is 12mm(bulk density 17kN/m²).
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?
A beam has a width of 300 mm and an effective depth of 480 mm strength Pc= 34 MPa. Steel yield strength fy=415 MPa. The section is to be reinforced for tension only and the effective concrete cover is 70 mm. Deadload moment is 140 kN-m and the liveload moment is 180 kN-m. Use 2010 NSCP with t= 0.005. A. What is the governing steel ratio? B. What is the maximum number of bars needed for a 25mm diameter reinforcements? C. What is the minimum number of bars needed for a 25mm diameter reinforcements?
Please double check your final answer. Subject - reinforced concrete A simply supported rectangular beam has a width of 300mm and the distance to the centroid of tension reinforcement is 330mm. The tension reinforcement has an area of 2463mm.2 and the area of compression reinforcement placed 70mm from the compression face of the beam is 1231.5mm.2, fy = 415MPa, fc'=30MPa, balanced steel ratio of 0.031.The design strength using 0.90 as the reduction faction is Choices A. 282kN.m B. 245kN.m C. 254kN.m D. 228kN.m
*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.
UPVOTE will be given! Please write the solutions completely and legibly. Box the final answer. Use two decimal places. A 300mm x 500mm beam section is used for a 4.2 m simple span is reinforced with 2-20mmØ at the top and 4-20mmØ at the bottom. The beam is carrying a total ultimate of 302 kN/m. The 10mmØ 3-legged stirrups are detailed 1 @ 50 mm, 10 @ 150mm, REST @ 250mm O.C. The concrete used has strength of 27.6 MPa and the yield strength of 415 MPa for both main and shear reinforcement. a. Determine the design shear capacity of the beam section using simplified method b. Determine the design shear capacity of the beam section using detailed method c. Multiple Choice: Encircle the correct answer. Evaluate the beam section against shear A. The beam is adequate against shear using simplified method B. The beam is adequate against shear using detailed method C. Both A and B D. Neither A nor B
Determine the LRFD moment capacity (φbMn) of a composite section that is comprised of a W30x99 with a 5-inch, (f’c = 4 ksi) slab on top of it. The beam span is 30-ft and the spacing of the beams is 8-ft. Show all work. Determine how many 3/4-inch shear studs would be required to ensure that this section is fully composite. Refer the figure below for the general cross-section.