This study presents the experimental study on the seismic performance of bridge column with high strength concrete and reinforcements, called New RC column. Given a specified plastic moment strength resulted from a predetermined RC column with ordinary materials, the design objective of New RC column is to provide same plastic moment strength but reducing the cross section, quantities of longitudinal and lateral reinforcement simultaneously. Total of one RC and five New RC square columns were carried out by cyclical loading tests. For New RC specimens, the design compressive strength of concrete, yielding strength of longitudinal and lateral reinforcement are 68.7, 686.7, and 784.8 MPa, respectively, while RC column are 27.5, 412.0, and 274.7 MPa. Experimental results demonstrated that New RC column can reduce cross section up to 30%, eliminate 25% number of longitudinal bars, and 20% of the lateral reinforcement without changing its flexural-dominate failure mode. In addition, the pushover curve can be well predicted by the proposed program. It is because of enhanced shear capacity and low axial load ratio that New RC is superior to RC bridge column and its application can be expected in the future.
|Number of pages||10|
|Journal||Journal of the Chinese Institute of Civil and Hydraulic Engineering|
|Publication status||Published - 2013 Jan 1|
All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering