THE SEISMIC RESISTANT CAPACITY OF STEEL FIBER REINFORCED HIGH STRENGTH CONCRETE FRAME JOINTS

According to the experimental results of 9 steel fiber reinforced high strength concrete frame joints under the low cyclic loading, this paper discusses the influence of steel fiber volume ratio, steel fiber addition range and axial compression ratio on the seismic behaviour of steel fiber reinforced high strength concrete frame joints. The result shows the seismic behaviour of steel fiber reinforced high strength concrete frame joints increases with the increase of the steel fiber volume ratio; the steel fiber addition range at the sides of the beam should not be too long, and it should be controlled in the range of the beam height; axial compression ratio should not be too high, and it should be controlled in the range from 0.1 to 0.3.