P2.26. A beam that is part of a rigid frame has end moments and mid-span moments for dead, live, and earthquake loads shown below. Determine the governing load combination for both negative and positive moments at the ends and mid-span of the beam. Earthquake load can act in either direction, generating both negative and positive moments in the beam. End Moments (ft-kip) Mid-Span Moments (ft-kip) Dead Load -180 +90 Live Load -150 +150 Earthquake +80 0

P2.26. A beam that is part of a rigid frame has end moments and mid-span moments for dead, live, and earthquake loads shown below. Determine the governing load combination for both negative and positive moments at the ends and mid-span of the beam. Earthquake load can act in either direction, generating both negative and positive moments in the beam. End Moments (ft-kip) Mid-Span Moments (ft-kip) Dead Load -180 +90 Live Load -150 +150 Earthquake +80 0

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A beam that is part of a rigid frame has end moments and midspan moments for dead, live, and earthquake loads shown below. Determine the governing load combination for both negative and positive moments at the ends and midspan of the beam. Earthquake load can act in either direction, generating both negative and positive moments in the beam. Given X = -190 ft-kip. End Moments (ft-kip) Mid span Moments (ft-kip) Dead Load +90 Live Load +150 0 X -150 Earthquake +80
200 mm 40 mm 100 mm 20 mm FIQURE Q1 (c)
A simply supported beam is subjected to a linearly varying distributed load q(x) = 9, with maximum intensity 9o at B. The beam has a length L = 4 m and rectangular cross section with a width of 190 mm and height of 320 mm. 9(x) A В L- Determine the maximum permissible value for the maximum intensity, 9o, (in kN/m) if the allowable normal stresses in tension and compression are 145 MPa. kN/m
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