某大悬挑空间钢结构关键技术分析与应用  

Analysis and Application of Key Technologies for a Large Suspended Space Steel Structure

作　　者：陆日超 张龙生 覃浩 Lu Richao;Zhang Longsheng;Qin Hao(Guangzhou Design Institute Group Co.,Ltd.,510620,China)

机构地区：[1]广州市设计院集团有限公司,510620

出　　处：《特种结构》2025年第1期104-107,共4页Special Structures

摘　　要：为了实现车站核内垂直交通疏散功能,在其内增设钢结构电梯厅及大悬挑钢结构屋盖。通过设置半铰接节点与应力分析,计算考虑释放80%的梁端弯矩,实现电梯厅钢立柱与钢环梁有效连接;大悬挑钢结构屋盖结合建筑需求增设“Y”钢支撑,以保证建筑效果。本文分析了大悬挑屋盖强度与变形、整体屈曲及节点承载力,确定刚度薄弱部位,并有针对性地采取加强措施,以提高结构刚度及稳定性,保证了空间钢结构的抗风、抗震性能。分析结果可为后续项目提供有意义的参考。To achieve the vertical traffic evacuation function within the station core,a steel structure elevator hall and a large span cantilevered steel structure roof were added inside.By setting up semi hinged nodes and conducting stress analysis,80%of the beam end bending moment released,effective connections between the elevator hall steel columns and steel ring beams were achieved."y"shape steel supports to the large cantilever steel roof was designed to meet building requirements and ensure the architecture effect.The strength and deformation,overall buckling,and node bearing capacity of large span cantilevered roofs were analyzed.Weak stiffness areas were identified,and targeted reinforcement measures were proposed to improve structural stiffness and stability,and to ensure wind and earthquake resistance performance of the spatial steel structure.The research results can provide meaningful references for subsequent projects.

关 键 词：空间结构 大悬挑 半铰接节点 异形钢支撑 

分 类 号：TU992.3[建筑科学—市政工程]