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对防屈曲偏心支撑混凝土框架结构(BRB frame)进行低周反复试验研究,对试验得到的滞回曲线及骨架曲线进行分析,在已有恢复力模型的基础上,简化得到了防屈曲偏心支撑框架结构的恢复力模型。通过实测滞回曲线与所建立恢复力模型的分析对比,结果表明:所建立的恢复力模型和实测滞回曲线吻合较好,该模型能够较好地描述防屈曲偏心支撑框架在反复荷载作用下的滞回特性。
The low-cycle repeated test of the anti-buckling eccentric supported concrete frame structure (BRB frame) is carried out. The hysteresis curve and the skeleton curve obtained from the test are analyzed. Based on the existing restoring force model, the anti-buckling eccentric support frame Structural resilience model. By comparing the measured hysteresis curve with the established restoring force model, the results show that the established restoring force model is in good agreement with the measured hysteresis curve. This model can well describe the buckling eccentric supporting frame under the action of repeated load Hysteresis characteristics.