Transcription of Practical Design to Eurocode 2
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Practical Design to Eurocode 2
EC2 Webinar Autumn 20177/1 Practical Design to Eurocode 2 Lecture 7 ColumnsThe webinar will start at order effectsWhat other 1storder effects are there?What is MEd?ColumnsLecture 72ndNovember 2017EC2 Webinar Autumn 20177/2 The Column Design ProcessAllow for imperfectionsin the columnDetermine slenderness, , via effective length loDetermine slenderness limit, limIs lim?YesNoColumn is not slender, MEd = Max (M02, NEde0)Column is slenderMEd = Max(M02;M0e+M2;M01+ ;NEde0)Calculate As( using column chart)Check detailingrequirementsDetermine the actionson the columnActionsActions on the columns are determined using one of the analysis methods we looked at for flexural the analysis obtain the following data: Ultimate axial load, NEd Ultimate moment at the t
taken as 1.0 i.e. θi = θ0 = 1/200 Actions Effective length, l0 Imperfections Slenderness, λλλλ Slenderness limit, λλλλlim Is λλλλ ≥≥≥≥ λλλλlim? Yes No Design Moments, MEd Slen-der Calculate A s Detailing Cl. 5.2 (7) & (9) 5.6.2.1 For isolated members at ULS, the effect of imperfections may be taken into account in two ...
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