透過您的圖書館登入
IP:52.54.103.76
  • 期刊

Finite Element Analysis of Axial Compression Performance of Lean Magnesium Ore Concrete-filled Steel Tube

摘要


Using lean magnesia ore as coarse aggregate inside CFST to make lean magnesia concrete to replace the original concrete can effectively reduce building pollution and ensure the sustainable utilization of resources without greatly reducing the bearing capacity of CFST columns. Rong Xiuqiang, Xie Jing established a theoretical model to study the bearing capacity of CFST filled with special aggregates under axial compression. decreased, but the strength-to-weight ratio of the column gradually increased. Chen Zongping and others conducted an experimental study on the eccentric pressure performance of circular CFST short columns, and analyzed the effects of eccentricity, coarse aggregate replacement rate, slenderness ratio and other factors on the peak load of short columns. Li Bin, Liu Wenyuan Wen Shuqing Liao Xu and others conducted experimental research and finite element analysis on the seismic performance of circular concrete-filled steel tubular columns, and analyzed the yield strength of steel tubes, compressive strength of concrete, and steel The influence of factors such as ratio and slenderness ratio on the bearing capacity, ductility, lateral stiffness and energy dissipation capacity of the column, and suggestions for the selection of relevant parameters are put forward. In this experiment, the ABAQUS finite element software was used to establish a model of CFST with poor magnesium ore, and the influence of the axial compression performance of the short column of CFST with poor magnesium ore was studied. The results show that, within a certain range, the use of lean magnesium ore as coarse aggregate to make high strength concrete with lean magnesium ore instead of the original concrete will reduce the bearing capacity of CFST. But to a certain extent, the effect of low-carbon environmental protection can be achieved.

參考文獻


Rong Xiuqiang, Ling Zhibin. Finite element analysis of axial compression performance of CFST short columns filled with wood cores [J/OL]. Progress in Building Steel Structures: 1-12 [2022-03-18].
Xie Jing, Ye Yong, Liu Yang, Ming Hao, Ren Yu. Experimental study on the axial compression performance of medium and long columns filled with stone filled steel tubes [J/OL]. Journal of Building Structures: 1-10[2022-03-18].
Chen Zongping, Ning Fan. Experimental study on the axial compression performance of composite-confined concrete columns with double square steel tubes inside inclined and outside regular [J/OL]. Industrial Architecture: 1-14 [2022-03-18].
Li Bin, Luo Kaini, Wang Kecheng. Finite Element Analysis of Axial Compression Performance of CFST Medium and Long Columns [J]. Shanxi Architecture, 2018, 44(13): 2018.13.022.
Liu Wenyuan, Leng Jie, Duan Wenfeng. Numerical simulation of circular concrete-filled steel tubular columns under reciprocating load [J]. Journal of Jilin Institute of Architecture and Engineering, 2012, 29(01): 1-4.

延伸閱讀