The Research On Eccentric Pressure Of Cross-Shaped Section Column With Steel Reinforced Concrete Columns

With the development of the high-rise building and the super high-rise building in our country, steel reinforced concrete and steel tube confined concrete are researched and implemented comprehensively. As a new type of structure component, which evolved and developed on the basis of special-shaped reinforced concrete column with steel in it. It has both of advantages of the reinforced concrete and the steel reinforced concrete. Three-axis compression increases the ductility and strength of confined concrete structure. So steel reinforced concrete shows an alluring applying prospect. Due to the less research on the circular steel tube compile column filled with steel reinforced, it is not convenient for design, application and development.In order to get the failure process and patterns about steel reinforced concrete special-shaped column, the testing studies are made between eccentric load bearing capacity about 9 steel reinforced concrete special-shaped columns. The failure characteristics, mechanical behaviors of the eccentric pressure bearing capacity of steel reinforced concrete special-shaped column such as the loading-displacement and skeleton curves, load bearing capacity, displacement ductility are analyzed. Through the experiment, we can know the damage character about eccentric pressure bearing capacity of steel reinforced concrete special-shaped column , the effect of carrying capacity and ductility under steel ratio. Finally, steel reinforced concrete special-shaped column has high load bearing capacity and excellent ductility.According to the widely study on many literatures and regulations, this paper presents calculate formulas of steel reinforced concrete special-shaped column according to the superimposed theory. The results are in good agreement with the experimental results.By the program, analysis factors about loads angle, reinforced with steel rate, ratio of cross section, concrete strength level, reinforced Wing edge for steel reinforced concrete special-shaped column.Finally, this paper summarizes the thesis and poses the problems for further research.