（湖北工业大学土木建筑与环境学院， 武汉 430068）

［摘要］以钢筋混凝土门形框架结构为研究对象，在横梁与立柱的交界部位使用橡胶混凝土，通过模型试验，测试了结构承载力、跨中应变、立柱应变、跨中位移随橡胶混凝土使用量的变化规律。研究结果表明，横梁的跨中应变决定了框架结构的承载力；橡胶混凝土在横梁与立柱交界部位的使用对结构的变形有较大的影响；橡胶混凝土的合理使用，可以不降低甚至小幅提高框架结构的承载力；橡胶混凝土在钢筋混凝土框架结构中推广应用是可行的。

［关键词］橡胶混凝土； 框架结构； 承载力

中图分类号：TU528-2文献标识码：A文章编号：1002-848X(2019)23-0123-04

Application of rubber concrete in reinforced concrete frame structure

Li Houmin, Tao Limei, Shu Zhan

(College of Civil Engineering and Environment, Hubei University of Technology, Wuhan 430068, China)

Abstract:Taking reinforced concrete portal frame structure as the research subject, rubber concrete was used at the boundary part between the beam and the column. The model test was conducted to study the change law of the structural bearing capacity, midspan strain, column strain and midspan displacement with the usage of rubber concrete. The research results show that the midspan strain of the beam determines the bearing capacity of the frame structure; the use of the rubber concrete at the boundary part between the beam and the column has a great influence on the deformation of the structure; the reasonable use of the rubber concrete will not reduce the bearing capacity of the frame structure,some slightly improved; the application of  rubber concrete in the reinforced concrete frame structure is feasible.

Keywords:rubber concrete; frame structure; bearing capacity

*绿色建筑与城市生态环境协同创新中心开放基金（201615）。

作者简介：李厚民，硕士，副教授，硕士生导师，Email:lihoumin2000@163.com。