郭二伟，  李振宝
  （北京工业大学工程抗震与结构诊治北京市重点试验室，北京 100124）

[摘要] 多次地震震害表明：在钢筋混凝土框架结构中，破坏大多数发生在节点核心区或柱端等部位。但是，目前在各国钢筋混凝土设计规范中，还没有对节点抗震设计取得一致的规定。通过对各国钢筋混凝土梁柱节点震害的调查和节点试验研究，总结了节点核心区抗震性能的主要影响因素；综述了现有钢筋混凝土框架节点抗剪承载力计算基本理论及节点变形分析方法；归纳了钢筋混凝土梁柱节点计算理论的最新进展，并指出了目前研究存在的主要问题和研究方向。
[关键词] 钢筋混凝土；梁柱节点；抗剪承载力；抗震性能
中图分类号：TU375    文献标识码：A  文章编号：1002-848X(2012) Sl-0215-05

Research progress in seismic performance of reinforced concrete joints
Guo Erwei, Li Zhenbao
(Beijing Key Lab of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China)

Abstract: Disasters aroused by several earthquakes show that in the reinforced concrete frame structure, most destruction occured in the core node area or in other parts of columns. However, there is no agreement on the seisnuc design requirements in the reinforced concrete code in different countries. Through investigations and node tests for damage of reinforced concrete beam-column joints, main factors affecting seisnuc performance of nodes core zone were summed up, the existing shear capacity of reinforced concrete frame of basic theory and the node deformation analysis were reviewed, the theory of reinforced concrete beam-column joints of the latest calculation was summarized, and the main problems in the current study and research were pointed out.
Keywords: reinforced concrete; beam-column joints; shear capacity; seismic performance