Architectural Drafting and Design (MindTap Course List)
7th Edition
ISBN: 9781285165738
Author: Alan Jefferis, David A. Madsen, David P. Madsen
Publisher: Cengage Learning
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Chapter 31, Problem 31.3P
If the soil-bearing pressure is 1500 psf and the concrete has a strength of 2500 psi, what size pier is needed to support a load of 4600 lb?
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Chapter 31 Solutions
Architectural Drafting and Design (MindTap Course List)
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- Two metric rolled-steel channels are to be welded along their edges and used to support the loading shown. Knowing that the allowable normal stress for the steel used is 150 MPa, determine the most eco-nomical channels that can be used.arrow_forward1. What is the value of Vu at a distance "d" from the face of the support? 2. What is the value of Tu at a distance "d" from the face of the support? 3. What is the value of the nominal shear strength of the concrete?arrow_forward10. A simply supported beam 300 mm wide, 500 mm deep and spans 5.0 m supports a service super imposed dead load of 6 kN/m and service live load of 9 kN/m. Concrete strength f’c = 21 MPa and steel yield strength fy = 415 MPa. Concrete cover to bar centroid is 70 mm. Determine the required amount of tensile reinforcement in mm^2 as per provisions of NSCP 2015. Write your final answer to the nearest whole number.arrow_forward
- A simply supported beam 300 mm wide, 500 mm deep and spans 5.3 m supports a service super imposed dead load of 8 kN/m and service live load of 6 kN/m. Concrete strength f’c = 21 MPa and steel yield strength fy = 415 MPa. Concrete cover to bar centroid is 70 mm. Determine the required amount of tensile reinforcement in mm^2 as per provisions of NSCP 2015.arrow_forwardWhat is the main value in pre-stressing pre-cast concrete columns?arrow_forwardWhat are the classification of reinforcement bar support? Give and describe 10 examples for each classification.arrow_forward
- A square column with dimensions of 300mm x 450mm will be constructed to support a balcony. Thecalculated loads acting on the column equal 3400kN. Using a factor of safety of 1.25, determine thecompressive strength (MPa) required for the concrete which will safely handle the factored loads.arrow_forward1) It is not necessary to install reinforcing steel in concrete under compression? Tor F 2) Nominal steel sizes are greater than the actual steel sizes. T or F 3) American Standard beams have superseded the Wide Flange beams in today's steel construction? T or Farrow_forwardA short plain concrete column with dimensions of 12"x12"x36" is to be constructed. If the compressive strength of the concrete is 5000 psi, what is the maximum load that can be applied to this column using a factor of safety of 1.2?arrow_forward
- In prestressed concrete beams, draped or harped tendons are usually used instead of straight tendons. Why? Explain.arrow_forwardLoad = 3000 lb Q:Find Stresses at: Section A-B & Section D-C "18.0"- "5,5" Plain Concrete: D Compressive Strength : 280 (Psi) "12.0"- "0.5"-arrow_forwardWhat is the reinforcement ratio for a beam with f'c = 4000 psi and fy = 40000 psi if the kbar = 0.4323 ksi? Type your answer...arrow_forward
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