Accelerated bridge construction require for urban area, new kind of a column to minimize construction time, work space, traffic control during the construction. A prefabricated composite column with steel tubular reinforcement is developed.
This paper investigates the seismic behavior of a prefabricated composite column which is made by onsite connection of precast composite column segments to accelerate bridge construction. Quasi-static cyclic loading tests were performed on three prefabricated composite columns with different connection details to find their seismic capacity. Test results show that the onsite connections remains in elastic range and no slip is observed as designed in spite of plastic hinge formation at the column. The test results in consideration of construction work in case of non-arrangement of rebar, there is no difference between the structural behavior. Also energy absorption capacity of the prefabricated composite columns is satisfactory. Test results also show that the displacement ductility satisfies. Also indicate that the prefabricated composite column has better overall seismic capacity compared to a conventional reinforced concrete column with seismic details.