An entrance canopy of a building is designed as a slab, where one of its longer sides fixed to the wall. It is 2.50m x 6m in dimension and 225 mm thick. It will carry the following loads: a uniform live load of 2000 Pa, a uniform dead load of 5000 Pa (excluding the slab weight) and a concentrated dead load of 5000 N per meter of the slab, applied at the extreme end of the support. The slab was designed in such a way that the main bars will run parallel to the shorter span. Use the following design properties: f 'c = 21 MPa, fy = 345 MPa, 16- mm-diameter main bars, 10-mm-diameter temperature bars and 20 mm clear cover. Unit weight of concrete is 23, 544 N/m3. a. Determine the ultimate bending moment in the slab due to loads in kN-m b. Determine the spacing of the main bars in mm. c. Determine the spacing of the temperature bars in mm
An entrance canopy of a building is designed as a slab, where one of its longer sides fixed to the wall. It is 2.50m x 6m in dimension and 225 mm thick. It will carry the following loads: a uniform live load of 2000 Pa, a uniform dead load of 5000 Pa (excluding the slab weight) and a concentrated dead load of 5000 N per meter of the slab, applied at the extreme end of the support. The slab was designed in such a way that the main bars will run parallel to the shorter span. Use the following design properties: f 'c = 21 MPa, fy = 345 MPa, 16- mm-diameter main bars, 10-mm-diameter temperature bars and 20 mm clear cover. Unit weight of concrete is 23, 544 N/m3. a. Determine the ultimate bending moment in the slab due to loads in kN-m b. Determine the spacing of the main bars in mm. c. Determine the spacing of the temperature bars in mm
Architectural Drafting and Design (MindTap Course List)
7th Edition
ISBN:9781285165738
Author:Alan Jefferis, David A. Madsen, David P. Madsen
Publisher:Alan Jefferis, David A. Madsen, David P. Madsen
Chapter31: Determining Beam Sizes
Section: Chapter Questions
Problem 31.2Q
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