Structural Steel Design (6th Edition)
6th Edition
ISBN: 9780134589657
Author: Jack C. McCormac, Stephen F. Csernak
Publisher: PEARSON
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Chapter 7, Problem 7.14PFS
To determine
The design of square base plate with A36 steel for a
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Design a base plate (rectangular) with A36 steel for a W 10 ≤ 100 column with a dead working load of 120k and a working live load of 410 k: The concrete 28-day strength is 4 ksi. Footing size is 12 by 12 ft. (Use ASD)
Design a 300 mm x 500 mm rectangular beam to carry a dead load moment of 80 kN-m (including its own weight) and a live load moment of 90 kN-m. Assume concrete cover (measured from bar centroid) to be 70 mm in compression and 80 mm in tension. Use fy = 345 MPa and fc = 27.6 MPa.
Find the maximum axial compressive service loads that the column of crosssection shown can carry. The column is short. Assume that the service dead load and live load are equal. Check the ties.Use f′c=4000 psi and fy=60,000 psi.
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Structural Steel Design (6th Edition)
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- Design a 300 mm x 500mm rectangular beam to carry a dead load moment of 80 kN-m (including its own weight ) and a live load moment of 90 kN-m. Assume concrete cover (measured from var centroid) to be 70mm in compression and 80 mm in tension. Use fy= 345 mPa and fc= 27.6 MPa.arrow_forwardThe uniformly distributed live load on the floor plan in Figure P2.4 is 60 lb/ft2 . Establish the loading for mem- bers (a) floor beam B3, (b) floor beam B4, (c) girder G3, and girder G4. Consider the live load reduction if permit- ted by the ASCE standard.arrow_forwardA concrete beam similar to that shown in Figure 13.18 sustains a uniform live load of 1.5 klf and a uniform dead load of 1 klf on a span of 20 ft. Determine the layout for a set of No. 3 U-stirrups using the stress method with fy = 40 ksi and f ′ c = 3000 psi. The beam section dimensions are b = 10 in. and d = 23 in.arrow_forward
- The column consists of a wooden post and a concrete footing, separated by a steel bearing plate. Find the maximum safe value of the axial load P if the working stresses are 1100 psi for wood and 465 psi for concrete.arrow_forwardDesign a round spiral column to support an axial dead load of 950 kN and an axial live load of 1210 kN. Use fy = 276 MPa and f’c = 27.6 MPa. Assume 2% steel ratio and use 28 mm main bars and 10 mm spiral. Assume a steel concrete cover based on NSCP 2015arrow_forwardDesign a pinned base plate for 13 (ft) W12X210 column to support dead loads of 300k and live loads of 300k. The concrete has a compressive strength of 3.5 ksi and the footing has dimensions of 9ft by 8.5 ft. Sketch the final arrangement.arrow_forward
- An eight meter simply supported beam carries a superimposed dead load of 6kN/m and aservice live load of 15kN/m. The beam has a width and total depth of 400mm and 550mm respectively.It is reinforced with five diameter 25mm bars and 10mm stirrups. Material properties are fc'=27.60MPaand fy=421.60MPa. 1 Using the detailed calculation of Vc, determine the nominal shear strength of concrete at 0.60m from the support. a 133.3220 kN b 153.6610 kN c 180.3630 kN d 110.5770 kN 2 Using the detailed calculation of Vc, determine the shear carried by stirrups at 0.90m from the support. * a 53.7734 kN b 65.4637kN c 58.3913 kN d 67.2129 kNarrow_forwardA 7m cantilever beam with a width of 300mm and effective depth of 500 mm isprovided with a 12mm U stirrups with fy = 345 MPa. The beam is to carry a uniformlive load of 15kN/m and uniform dead load of 14 kN/m including itsown weight throughout its entire span. Use compressive strength of concrete = 25MPa.a. Determine the distance from the support where shear reinforcement is notrequired b. Determine the spacing of stirrups at the critical section (c. Determine the spacing of stirrups at the midspanarrow_forwardA simply supported rectangular beam 16'' wide having and effective depth of 22'' carries a total factored load of 9.4 kip/ft on a 20'-0'' clear span. a) If it is reinforced with 7.62 in^2 of tensile steel which continues uninterrupted into the supports and f'c=4000 psi, through what part of the beam is web reinforcement required? b) using vertical U stirrups with Fyt=60,000 psi, design the web reinforcement.arrow_forward
- A singly reinforced rectangular beam 350 mm wide and 450 mm deep is reinforced with 5 -16-mm-diameter bottom bars enclosed with 10-mm-dia stirrups covered with 40 mm of concrete. Calculate the nominal moment strength in kN-m. Use f'c = 21 MPa and fy = 420 MPa.arrow_forward8) The nominal axial strength of an axially loaded reinforced concrete tied column is 0.80[0.85f'cAg + As(fy - 0.85f'c)] True Falsearrow_forwardDetermine the factored axial load for the short, spirally reinforced circular column according to NSCP/ACI Code limitations. Assume the following: f’c=27.6 MPa, fy= 420 MPa, and D= 350 mm. Use 8- D28arrow_forward
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