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The UKB 610 x 305 x 179 in S275 section is strengthened by welding a 310mmx20 mm plate of S355 to each flange. Determine I, Wpl and Wa about y and z-axis of the resulting section. Calculate the percentage increase in the plastic moment resistance about the y-axis of the section, achieved by welding the plates. Full lateral restraint may be assumed. Considering the beam is simply supported, also comment on serviceability improvement achieved.

The UKB 610 x 305 x 179 in S275 section is strengthened by welding a 310mmx20 mm plate of S355 to each flange. Determine I, Wpl and Wa about y and z-axis of the resulting section. Calculate the percentage increase in the plastic moment resistance about the y-axis of the section, achieved by welding the plates. Full lateral restraint may be assumed. Considering the beam is simply supported, also comment on serviceability improvement achieved.

Steel Design (Activate Learning with these NEW titles from Engineering!)
Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN:9781337094740
Author:Segui, William T.
Publisher:Segui, William T.
Chapter5: Beams
Section: Chapter Questions
Problem 5.12.1P
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The UKB 610 x 305 x 179 in S275 section is strengthened by welding a 310mmx20 mm plate of S355 to each flange. Determine I, Wpl and Wel about y and z-axis of the resulting section. Calculate the percentage increase in the plastic moment resistance about the y-axis of the section, achieved by welding the plates. Full lateral restraint may be assumed Considering the beam is simply supported, also comment on serviceability improvement achieved.
Transcribed Image Text:The UKB 610 x 305 x 179 in S275 section is strengthened by welding a 310mmx20 mm plate of S355 to each flange. Determine I, Wpl and Wel about y and z-axis of the resulting section. Calculate the percentage increase in the plastic moment resistance about the y-axis of the section, achieved by welding the plates. Full lateral restraint may be assumed Considering the beam is simply supported, also comment on serviceability improvement achieved.
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