Experimental Study and Analysis on Axial Compressive Behavior of Sea-Sand Recycled Concrete Filled Steel Tube
HUANG Yijie
WU Jida
XIAO Jianzhuang
WANG Qing
SUN Huangsheng
Abstract：A compression test for the 18 sea-sand recycled concrete filled steel tube(SSRCFS) columns was conducted.The main parameters were recycled coarse aggregate(RCA) replacement percentage and seasand chloride ion content(CIC).The effects of RCA replacement percentage and CIC on the failure pattern of specimens and the load-deformation relationships were investigated.Results show that the loading processes of SSRCFS include elastic,plastic and faiture stages,which is similar to those of ordinary concrete filled steel tube(CFST) specimens.The main failure pattern of specimen is diagonal shear failure.It is also indicated that the peak load decreases slightly with the increase of the RCA replacement percentage and sea-sand CIC.The peak strain increases with the increase of RCA replacement percentage,while it increases first and then decreases with the increase of CIC.Finally,the comparison between the tested peak load and the calculated value by the codes is completed,axial stress-strain curves of SSRCFS are proposed based on the test data.
Keywords：sea-sand recycled concrete filled steel tuberecycled coarse aggregate replacement percentagechloride ion contentfailure patternloading deformation curve
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 85-90,130 )