陈玲俐，于洁，王建

  （上海大学土木工程系，上海 200072）

 

［摘要］钢筋混凝土框架节点受力情况复杂，破坏形式多样，已有的节点抗震设计理论及规范中没有给出明确的节点破坏模式分化的界定方式。选取了典型的足尺框架节点，分析了不同弯矩调幅、混凝土抗压强度、轴压比及剪跨比影响下节点的抗震性能，并在此基础上提出了节点破坏模式分化参数的设计计算方法，进一步明确了节点破坏模式分化的影响因素，为实现节点基于性能的抗震设计提供了理论基础。

［关键词］钢筋混凝土框架节点；破坏模式；弯矩调幅；轴压比；剪跨比

中图分类号：TU375-4文献标识码：A文章编号：1002-848X(2012)07-0076-05

 

Chen Lingli, Yu Jie, Wang Jian

(Department of Civil Engineering, Shanghai University, Shanghai 200072, China)

 

Abstract: Under variety forms of reinforced complex forces, concrete frame joints have different failure modes. However, the existing seismic code and design theory do not give a clear specification for the joint failure mode defined differentiation. A group of typical full-scale RC joints were selected to analyze the seismic behavior under different moment redistribution, concrete compressive strength, axial compression ratio and shear span ratio. Based on analysis results, the failure mode differentiation method and the design parameters are given out. The factors for the joint failure mode are further made clear and it provides a good reference for the current design theory.

Keywords: reinforcement concrete frame joint; failure mode; moment redistribution; axial compression ratio; shear span ratio

作者简介：陈玲俐，博士，副教授，Email：chenll@shu.edu.cn。

 

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