TEST BEHAVIORS AND NUMERICAL ANALYSES OF STUB STEEL TUBULAR COLUMNS FILLED WITH RECYCLED CONCRETE SEGMENT/LUMP AND SUBJECTED TO AXIAL FORCE
It is imperative to introduce demolished concrete from construction and demolition debris into the circular production for achieving sustainable development. Apart from the recycling technology of turning demolished concrete blocks into aggregate for concrete, more practical solutions need to be found to facilitate the wider use of demolished concrete. This paper reports some research work concerning an innovative composite structural member, i.e., the steel tubular columns filled with recycled concrete segment/lump (RCS/L), proposed earlier for the purpose of energy saving and waste utilization. Axially loaded tests of 17 specimens, containing 12 recycled-concrete-segment/lump filled steel tubular (RCS/LFST) stub columns and 5 normal concrete filled steel tubular (CFST) stub columns, were conducted. Then an existing constitutive model developed for conventional concrete filled steel tubular (CFST) columns was utilized for this new kind of column. The values yielded by finite element analyses carried out in the code ANSYS were verified against experimental data. It indicates that the numerical results are nearly consistent with the experimental behavior.
recycled-concrete-segment/lump filled steel tubular column concrete filled steel tubular column demolished concrete numerical analysis azial loading ultimate compressive strength
Bo Wu Xin-Yu Zhao Wei Liu Qiong-Xiang Liu Zhe Xu
State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzho State Key Laboratory of Subtropical Building Science, outh China University of Technology, Guangzhou Shenzhen General Institute of Architectural Design and Research, Shenzhen 518000, P.R. China
国际会议
广州
英文
70-76
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）