反复荷载作用下锈蚀钢筋混凝土矩形柱力学性能研究  

Study on Mechanical Properties of Corroded Reinforced Concrete Rectangular Columns under Repeated Loads

作　　者：周凯 高佳辉 

机构地区：[1]浙江理工大学建筑工程学院,浙江 杭州

出　　处：《理论数学》2024年第4期34-44,共11页Pure Mathematics

摘　　要：为了研究锈蚀钢筋混凝土矩形柱的抗震性能,本文采用了Abaqus软件,对钢筋混凝土矩形柱进行了数值模拟。本文分析了锈蚀率、轴压比、非加密区箍筋间距、纵筋直径等因素对其抗震性能的影响。研究结果表明,在反复荷载作用下,随着锈蚀率和非加密区箍筋间距的增加,RC矩形柱的水平向抗剪承载力明显下降,其延性也随之降低。增大纵筋直径可以有效提高RC矩形柱的抗剪承载力并增强其延性。然而,随着轴压比的增加,RC矩形柱的抗剪承载力显著提高,但其延性却明显降低。随非加密区箍筋间距增大,RC矩形柱的抗剪承载力和延性显著下降。To conduct a study on the seismic performance of corroded reinforced concrete rectangular columns, this paper utilized Abaqus software to carry out numerical simulations. The research analyzed various factors, including corrosion rate, axial compression ratio, stirrup spacing in non-critical regions, and longitudinal reinforcement diameter, and their impact on the seismic resistance of these columns. The results indicated that under repeated loading conditions, the horizontal shear capacity of RC rectangular columns significantly decreased with an increase in corrosion rate and stirrup spacing in non-critical regions, accompanied by a reduction in ductility. However, enlarging the diameter of longitudinal reinforcement effectively enhanced both the shear capacity and ductility of the RC rectangular columns. On the other hand, as the axial compression ratio increased, the shear capacity of the RC rectangular columns improved notably, but there was a marked decrease in ductility. Additionally, an increase in stirrup spacing in non-critical regions led to a significant decline in both the shear capacity and ductility of the RC rectangular columns.

关 键 词：锈蚀 钢筋混凝土矩形柱 力学性能 数值模拟 

分 类 号：TU3[建筑科学—结构工程]