铁路站房环梁转换层及关键转换节点的设计

Design of Ring Beam Transfer Layer and Key Transfer Node in Railway Station Building

江门站结构形式为上部钢结构、下部混凝土结构,其中局部树形编织筒支承柱在地面层转换,转换层为双型钢混凝土梁式转换结构。该结构体系复杂,其受力性能和抗震性能的优劣直接关系到整个结构的稳定性。文章通过转换层环梁模型在静力作用下和大、中、小地震作用下的有限元分析以及梁托柱转换节点子模型在大震中的有限元分析,研究江门站关键转换层中的关键构件及节点的变形情况和抗震性能,得出该结构体系是安全可靠的。

Jiangmen Railway Station building adopts an upper steel structure and lower concrete structure,in which the partial tree-shaped braided cylinder supporting column is converted on the ground floor,and the conversion floor is a double steel concrete beam conversion structure.The structural system is complex,and its mechanical performance and seismic performance are directly related to the stability of the entire structure.Based on the finite element analysis of the ring beam model of the transfer layer under the action of static force and large,medium and small earthquakes,and the finite element analysis of the joint model of the beam support column under large earthquakes,this paper studies the deformation and seismic performance of the key components and joints in the key transfer floor of Jiangmen Station,and concludes that the structure system is safe and reliable.