装配式组合结构半刚性梁柱节点的受力性能研究

Study on Mechanical Behavior of Semi-Rigid Joints of Prefabricated Composite Structure Beam and Column

【目的】通过对现行装配式组合结构梁柱节点形式的调研分析,结合理论计算提出一种新型螺栓连接节点。【方法】采用有限元程序对高强螺栓受力性能和节点试件进行模拟分析,验证了设计方法的可行性。【结果】研究发现高强螺栓节点具有较好的抗震性能,且增设牛担板抗剪,提升了节点的承载力、刚度和耗能能力。【结论】为装配式框架节点的研究分析提供理论基础。

[Purposes]A new type of bolted joint is proposed based on the investigation and analysis of existing prefabricated composite structure beam-column joint and theoretical calculation.[Methods]In order to verify the feasibility of the design method,finite element program is used to simulate the mechanical properties of high-strength bolt stress and node specimen analysis.[Findings]The study found that the high-strength bolt node,which adds cow bear plate shear,has good seismic performance,and improves the bearing capacity,stiffness and energy dissipation capacity of nodes.[Conclusions]This study provides a theoretical basis for prefabricated frame node analysis.