The Research On The Strength Of Normal Section And Inclined Section Of Steel Reinforced Concrete Special-Shaped Column

2 The Reinforced Concrete Special-shaped Column (RCSC) proper is characteristic of saving space and it contributes to increase the effective applied area of buildings. The irregularity of its section and the limitation of construction conditions make it impossible for the section to be large enough to have high bearing capacity. In the《Technical specification for concrete structures with specially shaped columns》, the construction height of RCSC is strictly stipulated, which greatly restricts its applied area. In order to enhance the bearing capacity of RCSC, steel is added into it to form Steel Reinforced Concrete Special-shaped Column (SRCSC). This paper has finished the following tasks.1. A program which calculates the axial compression and biaxial bending of SRCSC column under axial compression and biaxial bending condition is completed by numerical integration method. Also numerical calculation has been made on the collected test data, and the correctness of the program has been testified. Through the calculation of the T,L,十shaped SRCSC under conditions of different concrete grades, steel ratio, reinforcement ratio as well as different loading angles, the factors affecting the bearing capacity of SRCSC and its transformation rules have been obtained.2. The influence rules of different loading angles, concrete strength grades and different section shapes on SRCSC balanced failure axial pressure ratio have been analyzed via numerical integration program, and as to T-shaped section column, the balanced failure axial pressure ratio is the lowest when web is under pressure.3. The FEM software Marc has been used to simulate the experiment of the shear strength of steel reinforced high strength concrete column, and the results were in compliance with the experiment. On this basis, the research on the numerical simulation experiment of the shearstrength of Steel Reinforced High Strength Concrete L-shaped Column has been conducted. The results indicate that the shear strength of L shaped member increases with the accretion of axial compression ratio, stirrup ratio and steel ratio, but decrease with the accretion of shear span ratio. Finally, according to the findings of numerical simulation experiments, the calculation formula of the shear strength of steel reinforced high strength concrete L-shaped column has been presented and can be used as a reference of engineering application.