Improved Transmission of High - Strength Concrete Column Loads through Normal Strength Concrete Slabs

摘要

Twelve column specimens were tested in compression; six were slab - column specimens and six were isolated column specimens. The slab - column specimens were first tested to punching shear failure before the columns of the specimens were loaded axially. The effects of confine - ment from the surrounding slab on the axial capacity of the columns were investigated. Other parameters investigated were the placement of fiber - reinforced concrete in the lab and the concentration of flex - ural reinforcement in the column vicinity.