Full-Range Analysis Of CSRC Column And Study Of Limit Value Of Axial Compression Ratio

Core Steel Reinforced Concrete (CSRC) column is a new structural technique which is developed from setting H-shape steel with little height at the core of reinforced concrete column section. It can increase the limit values of axial compression ratio of column and the section size of column and increase the section ductility. In the high rise apartment and office building,CSRC had advantage both on architecture function and structure safety at relative low cost. Its theoretical research and usage cause people's value gradually. Under this background, the limit values of axial compression ratio and the mechanical behavior of CSRC column are researched in this article.The article summarized Core Steel Reinforced Concrete (CSRC) development at present in our country and overseas firstly. The analytical model of CSRC columns are developed with the FEM software, ANSYS. Full-range section nonlinear analysis has been carried out using ANSYS. The influence of three main factors including volume ratio shaped-steel, eccentricity and axial compression ratio on the mechanical behavior of the CSRC column were fully studied. The load-displacement curves in different conditions are protracted and be added to analysis to get some related conclusions.Then, based on the balanced condition of internal forces in the case of boundary failure, the theoretical calculation formulas of limit values of axial compression ratio of CSRC column be considered and many calculation works are carried out. The influence of factors including volume ratio shaped-steel and the axial compression ratio on the mechanical behavior of the CSRC column are fully studied.