SAMPLE PROBLEM 1: USE LRFD The W21 x 93 beam sown in the figure must transmit a total reaction of 1,000kN to the steel base plate over a concrete column. All steels are A36 with Fy = 248MPa. The concrete has f'c = 27MPa and the allowable bearing stress on concrete is 0.3f'e. It is required to determine the size and thickness of the steel base plate. The beam has no bearing stiffeners. a) Determine the required area of base plate. b) Determine the minimum value of N. c) Determine the required plate thickness. W21 x 93 A = 17,613 mm² H = 550 mm tw = 14.7 mm b₁ = 214 mm tf = 23.6 mm k = 40.2 mm k₁ = 27.5 mm r₁ = 55.12 mm
SAMPLE PROBLEM 1: USE LRFD The W21 x 93 beam sown in the figure must transmit a total reaction of 1,000kN to the steel base plate over a concrete column. All steels are A36 with Fy = 248MPa. The concrete has f'c = 27MPa and the allowable bearing stress on concrete is 0.3f'e. It is required to determine the size and thickness of the steel base plate. The beam has no bearing stiffeners. a) Determine the required area of base plate. b) Determine the minimum value of N. c) Determine the required plate thickness. W21 x 93 A = 17,613 mm² H = 550 mm tw = 14.7 mm b₁ = 214 mm tf = 23.6 mm k = 40.2 mm k₁ = 27.5 mm r₁ = 55.12 mm
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Topic: BEAM BEARING PLATES AND COLUMN BASE PLATES - STEEL DESIGN
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