The Reinforced Concrete Core To Strengthen The Column Pier Ductility Test

To the present, most experiment researches and earthquake damage indicate that most structures enter elasto-plasticity condition in the strong motion earthquake. Construction displays elasto-plasticity deforming which is nonlinear deformation most concentrating in piers, structural shock-resistant performance is related to the ductility and power-wasting ability of piers, the ability of nonlinear deformation mainly depends on the ability of ductility in the areas of plasticity hinge. So, it has important theory and practicable significance to the research of ductility and bearing capacity of piers.In order to improve structural ductility and bearing capacity, a kind of new mode reinforced concrete construction is improved in the article, which is center reinforced concrete column, CRC. On the testing, the strength and ductility and main influencing factors of CRC is analyzed, experimental result indicates CRC has higher intensity and preferable deformability.Moreover, the procedure of moment of flexure and curvature to study the ductility ability of concrete piers is worked out, which is jointed to AutoCAD. This is convenient to dealing graph. Numerical calculation shows that the result of procedure and testing is very concordant.The research results in the paper are practical in engineering, and can be referenced for revising the seismic design specification of bridges.