装配式变电站钢框架梁截面选型与优化研究  

Research on Selection and Optimization of Steel Frame Beam Section for Prefabricated Substation

作　　者：张振 李腾 聂建春 张前 王旭 ZHANG Zhen;LI Teng;NIE Jianchun;ZHANG Qian;WANG Xu(Inner Mongolia Power(Group)Co.,Ltd.,Hohhot 010020,China;China Energy Engineering Group Zhejiang Electric Power Design Institute Co.,Ltd.,Hangzhou 310012,China;Inner Mongolia Electric Power Economic and Technical Research Institute Branch of Inner Mongolia Power(Group)Co.,Ltd.,Hohhot 010020,China)

机构地区：[1]内蒙古电力(集团)有限责任公司,内蒙古呼和浩特010020 [2]中国能源建设集团浙江省电力设计院有限公司,浙江杭州310012 [3]内蒙古电力(集团)有限责任公司内蒙古电力经济技术研究院分公司,内蒙古呼和浩特010020

出　　处：《电力勘测设计》2024年第3期23-27,共5页Electric Power Survey & Design

摘　　要：钢框架结构已取代钢筋混凝土框架结构成为装配式变电站配电装置楼的主要结构型式。不同于钢筋混凝土结构,钢结构设计标准未对钢框架梁高跨比做出明确规定,其截面选型依赖于设计人员经验和多次试算,选型不当易造成用钢量浪费。文章通过对钢框架结构简化模型静力分析和理论推演,得到最优梁柱线刚度比和梁临界高跨比,并结合变电站实际案例分析,从而推导出适合变电站的钢框架梁推荐高跨比,为变电站钢框架梁截面选型和优化提供依据。Steel frame structures have replaced reinforced concrete frame structures as the main structural form of prefabricated substation distribution equipment buildings.Unlike reinforced concrete structures,the standards for design of steel structures do not specify the depth-span ratio of steel frame beams.The section selection depends on the experience of designers and multiple trials,and improper selection can easily lead to steel waste.This article obtains the optimal linear stiffness ratio of beam to column and critical depth-span ratio of beams through static analysis and theoretical deduction of a simplified steel frame structure model.Combined with actual case analysis of substations,it derives the recommended depth-span ratio of steel frame beams suitable for substations,providing a basis for the selection and optimization of steel frame beam sections in substations.

关 键 词：装配式变电站 钢框架结构 截面选型 梁柱线刚度比 梁高跨比 

分 类 号：TU318[建筑科学—结构工程] TM63[电气工程—电力系统及自动化]