钢筋煤矸石砼柱在反复荷载下的性能

Behavior of Reinforced Gangue Concrete Columns under Cyclic Loading

本文根据9根钢筋煤矸石砼柱的试验结果,分析研究了不同轴压比、配箍率、配筋率、砼强度的钢筋煤矸石砼柱在低周反复荷载下的延性、刚度、滞回特性,运用换算截面轴压比综合考虑这些因素,建立了满足不同位移延性要求的最大轴压比经验公式,提出了钢筋煤矸石砼柱的恢复力模型和刚度退化公式。

Based on the test results of nine reinforced gangue concrete columns under low cyclic loading , this paper analyzes the effects of axial compression ratio, volumetric ratio of hoops,longitudinal steel ratio and degree of concrete strength on ductility ,rigidity and behavior of hysteresis. It starts from the ideal of conversion section axial compression ratio to suggest the empirical eguation for calculating maximum axial compression ratio corresponding to various displacement ductility. The response of reinforced gangue concrete column and the eguation of degrading stiffness are provided.