fa = 0.35Vfc (fe in MPa), Ecu = 0.003,Yanc = 1.5 (for cast in place), Ymc = 1.7 (cast in place with poor quality control), Ymc = 1.4(for precast), Yms = 1.15,C16C18C20C25C30C35C40С45C50k10.850.850.850.850.82 0.79 0.76 0.73 0.70Characteristiccompressive strength161820253035404550(fck) (MPa)E, = 200 x 10³ MPaSteel gradeS220 S420aB420CCharacteristic yield strength (fyk) (MPa)220420420Requirements of TS500 for the reinforcementBalanced reinforcement ratios (p.ratio of beams: (p= A)Steel Concrete Yme=1.4Yme=1.5Yme=1.7C250.02200.02050.0181p-p< Pmax = 0.85 ppC300.02540.02370.0209P< 0.020.02:C350.02860.0267Pmin = 0.8fctd/ f ydC400.03140.02930.02590.0280p Pmin0.0317C450.0339C500.03620.03380.02980.04790.0423d (1- 1-C/d), C= 0.85 bu fed2MaC550.0513kjc =C600.05370.05010.0442C700.05740.05360.0473jd = 0.9d, jd = d – h/2C800.05990.05590.0494C250.01720.01610.0142Va-VeVer = 0.65 fetabwd, As.0.0164Fwd Xd Vc = 0, 8VC300.01990.0186C350.02240.02090.0184Vmaz = 0.22 x fet × b,, x dC400.02460.02300.0203C450.02660.02480.0219Nor = 0.85 fckAc+ Ast fyk2 AofywkC500.02830.02640.0233foc = fck + 402, 02 =0.0331D-sC550.04020.03750.0347p= Ast/ (bh)0.0393C600.0421С700.04500.04200.0371C800.04700.04380.0387Ahmet TOPÇU, Betonarme I. Eskişehir Osmangazi Üniversitesi, 2019http://mmt2.ogu.edu.tr/atopcuFor steels with fy=500 N/mm?For steels with fyk=420 N/mm? -9un TarihiRevizyon NoSayfa Sayısı00D=250mmQuestion 3) The spiral column given on the right will be constructed onsite with adequate quality control using C30 concrete and B420C steel. Thelongitudinal bars are o16 and the spiral is o12 where the spiral spacing 1ss=75 mm.300mma) What is the ultimate axial load carrying capacity of this column? (5 points)b) What is the strength of this column for the second peak, i.e. after the crushing of theunconfined part of the column? (10 points)c) Based on the results you have found in part (a) and (b) comment on whether the columnis adequately designed or not. (5 points)3300mm

Given : C30 concrete B420C steel 16 mm dia longitudinal bars 12 mm dia spiral bars spacing of spiral…

Question 3) The spiral column given on the right will be constructed on D=250mm site with adequate quality control using C30 concrete and B420C steel. The longitudinal bars are o16 and the spiral is o12 where the spiral spacing 1s s=75 mm. 300mm a) What is the ultimate axial load carrying capacity of this column? (5 points) b) What is the strength of this column for the second peak, i.e. after the crushing of the unconfined part of the column? (10 points) c) Based on the results you have found in part (a) and (b) comment on whether the column is adequately designed or not. (5 points) 300mm

Question 3) The spiral column given on the right will be constructed on D=250mm site with adequate quality control using C30 concrete and B420C steel. The longitudinal bars are o16 and the spiral is o12 where the spiral spacing 1s s=75 mm. 300mm a) What is the ultimate axial load carrying capacity of this column? (5 points) b) What is the strength of this column for the second peak, i.e. after the crushing of the unconfined part of the column? (10 points) c) Based on the results you have found in part (a) and (b) comment on whether the column is adequately designed or not. (5 points) 300mm

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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