摘要
为研究碳纤维布(CFRP)和钢板组合加固对梁柱偏心节点抗震性能的影响,设计制作了4个试件,包括1个对照试件和3个不同加固形式试件,通过低周往复加载试验对各节点进行了对比和分析。试验结果表明:三种加固形式均可有效增强节点的抗震性能,改善节点的耗能能力;相对于纤维布单独加固偏心梁柱节点,钢板加固不仅可以明显提高节点的抗剪承载力还可以显著改善节点延性性能;组合加固节点能够综合单种材料的优点并且使得各种材料能够协同工作,大幅度提高节点的承载力和延性系数,增强节点耗能能力。
In order to study the influence of combined strengthening of carbon fiber sheet(CFRP)and steel plate on the seismic behavior of eccentric beam-column joints,four specimens,including one control specimen and three specimens with different strengthening forms,were designed and made,and the joints were compared and analyzed by low cycle reciprocating loading test.The test results show that the three strengthening forms can effectively enhance the seismic performance of the joints and improve the energy dissipation capacity of the joints,compared with the eccentric beam-column joints strengthened with fiber sheet alone.Steel plate reinforcement can not only significantly improve the shear capacity of joints,but also significantly improve the ductility of joints.Composite reinforced joints can integrate the advantages of single materials and make various materials work together,greatly improve the bearing capacity and ductility coefficient of joints,and enhance the energy dissipation capacity of joints.
出处
《福建建设科技》
2021年第6期12-16,共5页
Fujian Construction Science & Technology
关键词
偏心梁柱节点
组合加固
承载力
延性
耗能能力
Eccentric beam-column joints
combined reinforcement
bearing capacity
ductility
energy dissipation capacity
