1999 Volume 9 Pages 355-360
Concrete-filled tubular steel columns are generally used as center piles in underground rail station constructed by open cut method. However, as underground rail stations tend to be constructed at deeper place below the ground, the axial force over the column tends to increase, and due to the increase of steel pipe thickness and a size of bearing plate cost becomes a problem. Therefore, to lower costs, we suggest a new type concrete-filled tubular steel column.
This article reports that the result of specimen loading test at a reduction model to confirm a validity of an investigation and suggestion by analysis. Also according to the results of the test we will suggest a method of design of concrete-filled steel columns.
