梁柱偏心节点力学性能研究

Study on Mechanical Properties of Eccentric Beam Column Joints

为了避免钢结构梁柱刚性节点在地震荷载中发生脆性破坏,对钢结构梁柱偏心节点进行力学性能研究。以T字形梁柱节点为研究对象,建立有限元模型,对有限元模型进行循环加载,分析偏心节点受力性能和滞回性能。结果表明,应力响应集中于梁柱节点域,节点滞回性能良好,偏心对于梁柱节点有较大的影响。为避免主体结构的破坏,应对偏心设置允以考虑。

In order to avoid brittle failure of steel structure beam column rigid joints under seismic load, the mechanical properties of steel structure beam column eccentric joints are studied. Taking the T-shaped beam column joint as the research object, the mechanical performance and hysteretic performance of the model are analyzed by establishing the finite element model and cyclic loading. The structure shows that eccentricity has a great influence on beam column joints. In order to avoid ring breakage of the main structure, eccentricity should be considered.