Isolation of shear strength components in reinforced concrete beams:An innovative experimental method
The shear resistance(V)of reinforced concrete(RC)beams consists of two components: contribution from concrete(Vc)and that from transverse reinforcement(Vs).Traditional tests can only provide the total shear strength V,while,till now,no existing experimental methods could isolate the Vc and Vs with reasonable accuracy.The current paper reports an experimental method that is able to quantify the two components in conventional shear tests of RC beams.This was achieved by extensive measurement of the strains in all of stirrups without disturbing the bond.Beam tests using this method show that not all the transverse bars intersecting the critical shear crack yields at the onset of shear strength.The value of Vc is not constant under increasing deformation: it first increases and slightly drops after it reaches a peak,followed by a relatively stable plateau until final shear failure.
Reinforced concrete Shear strength Test Shear strength component of concrete
Biao Hu Yu-Fei Wu
Dept.of Architecture and Civil Engineering,City Univ.of Hong Kong,Hong Kong SAR,China School of Engineering,RMIT University,Australia;formerly,Dept.of Architecture and Civil Engineering,
国际会议
新加坡
英文
1-5
2017-07-19（万方平台首次上网日期，不代表论文的发表时间）