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中文摘要：
该文建立了火灾下钢筋混凝土梁柱连接节点力学性能分析的有限元模型,计算结果与实验结果基本吻合。采用建立的模型分析了高温下钢筋混凝土平面节点应力分布规律;并在参数分析的基础上探讨了节点受火方式、柱荷载比、梁荷载比、梁纵筋配筋率对节点变形、破坏形式和耐火极限的影响规律。
英文摘要：
A finite element（FE） model for the analysis of reinforced concrete beam-column joints at elevated temperatures is proposed in this paper.Results from the proposed model agree well with those from the tests.The stress distribution of reinforced concrete joints at elevated temperatures is analyzed by using the FE model.The influences of the heating scenario,the axial load of columns,the beam load ratio and beam reinforcement ratio on the joint deformation,the failure modes and the joint fire resistance are investigated by parametric studies.
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