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工业建筑  2008 

应用简化的软化桁架模型设计框架外节点

DOI: 10.13204/j.gyjz200804011, PP. 41-43

Keywords: 软化桁架模型,外节点,抗剪强度,混凝土强度,竖向箍筋,水平箍筋

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Abstract:

简化的软化桁架模型源于拉压杆的概念,其满足带裂缝混凝土的平衡条件、相容条件和本构关系。在介绍简化的软化桁架模型的传力途径、设计步骤的基础上,考虑包括混凝土强度、竖向箍筋和水平箍筋的数量等参数的影响,用简化的软化桁架模型对现浇钢筋混凝土框架外节点进行抗剪强度分析和设计。通过对一个现浇钢筋混凝土框架外节点的验算,并与混凝土结构设计规范(GB50010-2002)规定计算方法进行比较,计算结果基本一致,证明了所提出的简化的软化桁架模型的有效性、实用性。

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