Design of Circularcolumn

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DESIGN OF CIRCULAR COLUMN 1.DATA: Axial load 5000 KN Size of column D= 1000 mm Eff length of column L= 8 m 20 415 2. SLENDERNESS RATIO: (L/D)= 8.00 <12 Hence the column is short column 3.FACTORED LOAD: 7500 KN 4.MINIMUM ECCENTRICITY: 33.35 mm <20mm also 0.05D = 50 mm <20mm 4.MAIN REINFORCEMENT: 4517.68 6280 dia of ma hence ok hence provide 6 nos of 22mm diameter with 3 bars d 5.LATERAL TIES: Dia = dia of main bar /4= 6.25 <6mm dia of ti hence provide 6mm dia lateral ties 6.PITCH: Least lateral dimension = 1000 mm 16 times of dia of main b 400 mm minimum 300 mm whichever is less hence adopt 6mm dia bar a 230 mm c/c fck= N/mm 2 fy= N/mm 2 Pu = 1.5*P = emin=(L/500+D/30)= Pu = 0.4fck*A Asc= mm 2 Astmin =0.8*Ag/100 = mm 2

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design of coloumn

Transcript of Design of Circularcolumn

Sheet1DESIGN OF CIRCULAR COLUMN1.DATA:Axial load P =5000KNSize of columnD=1000mm

Eff length of column L=8mfck=20N/mm2fy=415N/mm22. SLENDERNESS RATIO:(L/D)=8.00