Structural Steel Design (6th Edition)
6th Edition
ISBN: 9780134589657
Author: Jack C. McCormac, Stephen F. Csernak
Publisher: PEARSON
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Chapter 2, Problem 2.5PFS
Structural steel beams are to be placed at 6 ft on center under a reinforced concrete floor slab. If they are to support a service dead load
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Structural steel beams are to be placed at 7 ft 6 in on center under a reinforced concrete floor slab. If they are to support a service dead load D = 64 psf of floor area and a service live load L = 100 psf floor area, determine the factored uniform load per foot which each beam must support.
An 8.5m simply supported beam is subjected with a uniformly distributed load of50KN/m. If the beam is laterally braced at third points and both ends, determine itsunbraced length in meters.
Using the tributary area method, compute the floor dead loads supported by columns Al and B2 in Figure 1. The floor system consists of a 6in thick reinforced concrete slab weighing 75 Ib/ft^2. Allow 15 Ib/ft^2 for the weight of floor beams, utilities, and a ceiling suspended from the floor. In addition, allow 10 Ib/ft^2 for lightweight partitions. The precast exterior wall supported by the perimeter beams weighs 600 Ib/ft.
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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
- The partial plan layout for the framed structure of a multistory building is shown below. The vertical structure consists of columns and the horizontal floor structure of a one-way deck and beam system. The uniformly ultimate (factored) distributed load for the one-way-spanning deck is equal to 0.14 kip/ft2. Ignore the own weights of beams and walls. L1 = 22 ft, L2 = 22 ft, L3 = 32 ft. Compute the load on column 1. Compute the value of distributed load on beam A. Compute the value of concentrated loads on beam C. Draw the shear and bending moment diagrams for beam C (with values) – Assume beam C as simply supported.arrow_forwardStructural steel beams are to be placed at 7 ft 6 in on center under a reinforced concrete floor slab. If they are to support a service dead load D = 64 psf of floor area and a service live load L = 100 psf floor area, determine the factored uniform load per foot which each beam must support USING THE ASD EXPRESSIONS.arrow_forwardCompute the total elongation caused by an axial load of 183 kN applied to a square bar, tapering from a width of 120 mm to 40 mm in a length of 10 m as shown. Assume E = 220 GPa. Answer must be in mm.arrow_forward
- A simple beam with a span of 15 ft supports a uniform load of 800 plf, which includes its own weight. What are the reactions of R2? A. 23,760 B. 23,120 C.22, 480 D.21, 840arrow_forwardStructural steel beams are to be placed at 7 ft 6 in on center under a reinforced concrete floor slab. If they are to support a service dead load D = 64 psf of floor area and a service live load L = 100 psf floor area, determine the factored uniform load per foot which each beam must support. (KEY ANSWER: 1776 plf)arrow_forwardWhat is the equivalent concentrated load of a triangular load which varies from 0 at one support and 9 kN/m at the other support carried by a 6-m simply supported beam? (Answer must be in kN.)arrow_forward
- Determine the dead weight (in pounds per linear foot) of the reinforced concrete t-beam with the cross section shown. Assume the beam is constructed of lightweight concrete with a unit weight of 120 pcf.arrow_forwardThe floor of a classroom is to be supported by the bar joists shown. Each joist is 15 ft long and they are spaced 2.5 ft on centers. The floor itself is to be made from lightweight concrete that is 4 in. thick. Neglect the weight of the joists and the corrugated metal deck, and determine the load that acts along each joist.arrow_forwardA plank, 12-ft long and of negligible weight is supported and carries the horizontal and vertical loads shown. The coefficient of friction is 0.25. If T = 320 lb, determine the value of P to start motion downward. What is the normal force developed between the pole and horizontal surface?arrow_forward
- A reinforced concrete beam as shown in the figure below has a flange width of350mm, flange thickness of 120mm, and an effective depth of 600 mm. It is reinforced with 3-32 mm ∅ at the bottom. If fc’ = 28MPa, and fy = 275 MPa, determine the following:a. Balance steel ratiob. Depth of compression block.c. Moment capacity of the beam.arrow_forwardA 500-mm-diameter, non-slender, spiral column is symmetrically reinforced with six 25 mm vertical bars. Calculate the nominal strength (kN) of this column if subjected to axial load only. Given f’c = 27 MPa and fy = 414 MPa. 4,526 5,657 4,809 3,607arrow_forwardDetermine the deadweight of a 1-ft-long segment of the prestressed, reinforced concrete tee-beam whose cross section is shown in Figure P2.1. Beam is constructed with lightweight concrete which weighs 120 lbs/ft3arrow_forward
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