装配式村镇住宅轻钢框架结构设计与研究  

Design and Research on Light Steel Frame Structure of Prefabricated Rural Houses

作　　者：陈志华[1,2] 孙克肇 周婷[4] 闫翔宇[1,5] 肖潇 张莫凡 Zhihua Chen;Kezhao Sun;Ting Zhou;Xiangyu Yan;Xiao Xiao;Mofan Zhang(School of Civil Engineering,Tianjin University,Tianjin 300072,China;Key Laboratory of the Ministry of Education on Binhai Civil Engineering Structure and Security,Tianjin University,Tianjin 300072,China;International Engineering Institute,Tianjin University,Tianjin 300072,China;School of Architecture,Tianjin University,Tianjin 300072,China;Tianjin University Research Institute of Architectural Design and Urban Planning Co.,Ltd.,Tianjin 300073,China)

机构地区：[1]天津大学建筑工程学院,天津300072 [2]天津大学滨海土木工程结构与安全教育部重点实验室,天津300072 [3]天津大学国际工程师学院,天津300072 [4]天津大学建筑学院,天津300072 [5]天津大学建筑设计规划研究总院有限公司,天津300073

出　　处：《钢结构（中英文）》2023年第9期28-36,共9页Steel Construction（Chinese & English）

基　　金：国家重点研发计划(2019YFD1101005)。

摘　　要：在乡村振兴、双碳目标、建筑产业升级、装配式的大背景下,我国村镇经济实现了突飞猛进的发展。在住宅建设热潮的推动下,村镇住宅的发展从量的增加转变为质的提高,居住条件和建设质量的改善越来越成为村镇住宅下一阶段发展的必然要求。轻钢框架结构体系具有构件轻便、易于运输、抗震性能优良的特点,适用于村镇地区低层住宅。但已有的焊接、栓接的连接方式不满足低成本、简易施工的预期目的。为此,从村镇地区落后的运输条件和施工条件的立足点出发,提出了一种新型村镇轻钢框架结构体系,包括自攻螺钉连接节点、方钢管组合异形柱等。结合德胜村装配式村镇住宅钢结构房屋,研究了新型体系的结构设计和节点设计方法,详细介绍了其设计与施工过程中所采用的关键技术,包括装配式村镇住宅BIM正向设计技术、简易施工异形柱装配技术、装配化螺旋钢桩承台节点技术、节点简易化连接与安装技术。结果表明:这种新型体系结构设计指标满足相关规范要求,安全可靠;采用范围修正后的英国规范计算的螺钉抗剪承载力和欧洲规范计算的螺钉抗拔承载力,均比实际试验值略小,工程应用偏于安全;所提出的关键技术满足村镇住宅绿色环保、简易施工、经济效益优的内在要求,适于在村镇地区推广应用。In the backdrop of rural revitalization,dual carbon targets,the upgrading of the construction industry,and the trend towards prefabricated construction,China′s rural economy has experienced a remarkable surge in development.Fueled by the boom in residential construction,the development of rural housing has shifted its focus from mere quantity increase to a substantial improvement in quality.The enhancement of living conditions and construction standards has become an inevitable imperative for the next phase of rural housing development.The lightweight steel frame structural system stands out for its characteristics of lightweight components,easy transportability,and excellent seismic performance,making it a suitable choice for low-rise residential buildings in rural areas.However,existing welding and bolted connection methods fall short of meeting the demands for cost-effectiveness and simplified construction procedures.To address these issues,this paper presents a novel rural light steel frame structural system,taking into account the challenges posed by the backward transportation and construction conditions in rural areas.This innovative system incorporates self-tapping screw connection nodes and rectangular steel tube composite-shaped special-shaped composite columns.Through a comprehensive study on the structural and node design methods,this new system was applied to the prefabricated steel structures in Desheng Village.The article elaborates on the key technologies adopted during the design and construction processes,which include BIM forward design for prefabricated rural housing,the straightforward assembly of composite-shaped columns,the assembly of spiral steel pile cap nodes,and simplified node connection and installation techniques.The results demonstrate that this novel structural system meets all the relevant regulatory requirements and ensures safety and reliability.The calculated shear resistance of screws using modified British standards and pull-out resistance of screws using European standard

关 键 词：自攻螺钉连接 装配式 村镇住宅 轻钢框架结构 

分 类 号：TU392.5[建筑科学—结构工程]