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工程力学  2012 

钢结构箱形柱与梁异型节点设计方法研究

DOI: 10.6052/j.issn.1000-4750.2011.04.0187

Keywords: 钢结构,异型节点,破坏机理,力学行为,设计方法

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Abstract:

针对大型厂房框排架结构中通常存在变梁变柱异型节点的实际情况,对6个钢结构箱形柱与梁异型节点模型进行拟静力试验,研究了钢结构异型节点的破坏机理和力学行为,建立了基于塑性铰理论的钢结构异型节点力学模型,提出了该类异型节点的设计方法及构造建议。试验与计算对比表明:可按小核心区为常规节点计算梁端的抗弯承载力;在验算节点域强度时可只对小核心区进行验算,且在保证节点域强度的前提下,只需对小核心区的抗剪承载力进行验算。该方法为钢结构异型节点的合理设计提供了依据。

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