Seismic-resistant Behaviors Analysis Of The L-shaped Reinforced Concrete Column Subjected To Variational Axial Force

The reinforced concrete has an obvious steric effect in real earthquakes. There is a complicated coupling between the axis force and compound bending which change in side columns and angle posts. This coupling is always the main factor resulted in structural damage and collapse. L-shaped heteropolymer cylinder is always in the angle post position. There is one end connected with the girder, therefore, the range of variation in axis force is usually big in earthquake effects. However, restrained by the conditions needed to conduct the multidimensional semi static force experiment, this experiment is rarely conducted. Besides, the research on multidimensional structure theory has lagged behind. So far, there has no relevant experimental research and theoretical analysis on the earthquake-resistant behavior of L-shaped reinforced concrete column. Therefore, it is necessary to make a computer modeling analysis on the earthquake-resistant behavior of L-shaped reinforced concrete column, including bearing capacity, ductility and accumulative dissipation of energy in order to establish a foundation on the establishment and improvement of the national trade standard of heteropolymer cylinder. Centered on this goal, the following tasks are conducted:â‘ First, the author elaborates on the existing situation both at home and aboard of the performance of the reinforced concrete under the changing axis force circumstance and of the performance of the heteropolymer cylinder under the fixed axis force. Based on the experiments, the content of this research is determined to make up for the deficiencies in the existing experiments of heteropolymer cylinder multidimensional loading. And based on the position of L-shaped cylinder in heteropolymer cylinder frame, the research target of the paper is determined.â‘¡The loading experiments are conducted through using beam column fiber model finite element program based on the flexibility. It is proved that this program can simulate the effects of the changing axis force on the reinforced concrete column performance.â‘¢The earthquake-resistant behavior of 60 L-shaped columns in fixed axis force and regularly changing axis force is analyzed based on the fiber model beam column element non-linear analysis program. The axis loading is changed with...