学术论文详情

摘要：Aimed at problem of brittle shear failure occurred in the plastic hinge zone of reinforced concrete bridge columns under seismic effect,the shear strength of the column were studied.The pseudo-static tests of 12 reinforced concrete short bridge column were conducted.Existing calculated equations for shear strength of the bridge column around the world were also compared with each other based on experimental results.Using pseudo-static test database of PEER reinforced concrete column,statistical analysis for influencing factor of concrete shear strength in plastic hinge zone under seismic effect was carried out.Finally,according to relative code and research outcome,a calculated equation for shear strength of bridge column in the plastic hinge zone was proposed.Results show that the short bridge columns satisfied with minimum stirrup ratios of current seismic design code in China may suffer shear failure in plastic hinge zone which should pay more attention in the design.