超高层建筑施工整体钢平台钢梁螺栓节点刚度影响因素研究
|
摘要
为研究模块化整体钢平台钢梁间连接节点刚度的影响因素,对8个不同构造的主次梁螺栓连接节点进行有限元数值模拟,并通过试验与有限元模拟结果进行对比验证。分析了螺栓规格、节点螺栓数量以及翼缘连接等因素对主次梁螺栓连接节点抗弯刚度的影响。研究结果表明:螺栓孔间隙减小、螺栓个数增加、翼缘连接设置可提高钢平台主次梁螺栓连接节点的抗弯刚度。根据数值模拟结果,对整体钢平台标准化以及主次梁螺栓连接节点构造提出建议。
This article presented a series of numerical parametric investigations on the behavior of steel beam-to-beam bolted connections,which were located in the integral steel platform. The main focus of this research was to investigate the influencing parameters on the connection's stiffness. A total of 8 finite element models,using the ABAQUS,were built.First of all,one of the FE model was compared with an existing test data to verify the validation and the accuracy of the FE model. Then,some parameters,including bolt size,the number of bolts and flange connection,were analyzed one by one.It was found that decreasing of bolt hole clearance,increasing of bolt numbers and the connection of flanges,would be helpful to improve the bending stiffness of the beam-to-beam connections. This research results could provide guidelines for the design of modular integral steel platform.
This article presented a series of numerical parametric investigations on the behavior of steel beam-to-beam bolted connections,which were located in the integral steel platform. The main focus of this research was to investigate the influencing parameters on the connection's stiffness. A total of 8 finite element models,using the ABAQUS,were built.First of all,one of the FE model was compared with an existing test data to verify the validation and the accuracy of the FE model. Then,some parameters,including bolt size,the number of bolts and flange connection,were analyzed one by one.It was found that decreasing of bolt hole clearance,increasing of bolt numbers and the connection of flanges,would be helpful to improve the bending stiffness of the beam-to-beam connections. This research results could provide guidelines for the design of modular integral steel platform.
引文
[1]扶新立,马静,秦鹏飞.筒架支撑式液压爬升整体钢平台的模架安装[J].建筑施工,2014,36(1):39-42.
[2]马静.上海国际航空服务中心核心筒液压爬升整体钢平台模架安装技术研究[J].建筑施工,2015,37(11):1301-1303.
[3]李星荣.钢结构连接节点设计手册[M].北京:中国建筑工业出版社,2005.
[4]CEN:ENV 1993-1-1 Eurocode 3:Design of Steel Structures:Part 1.1 General Rules and Rules for Buildings[S].
[5]童乐为,周锋.主次梁螺栓连接节点试验研究报告[R].上海:同济大学建筑工程系钢与轻型结构研究室,2015.
[6]Qiang Xuhong,Frans S K B,Henk K,et al.Behaviour of Beamto-Column High Strength Steel End-Plate Connections Under Fire Conditions-Part 2:Numerical Study[J].Engineering Structures,2014,64:39-51.
[7]GB 50017—2003钢结构设计规范[S].
[8]施刚,石永久,王元清,等.多层钢框架半刚性端板连接的试验研究[J].清华大学学报:自然科学版,2004,44(3):391-394.
[9]夏志斌,姚谏.钢结构原理与设计[M].北京:中国建筑工业出版社,2011.
[10]完海鹰,周涛.半刚性节点研究综述及展望[J].钢结构,2006,21(1):37-40.
[11]龚剑,佘逊克,黄玉林.钢柱筒架交替支撑式液压爬升整体钢平台模架技术[J].建筑施工,2014,36(1):47-50.
[12]龚剑,朱毅敏,徐磊.超高层建筑核心筒架构施工中的筒架支撑式液压爬升整体钢平台模架技术[J].建筑施工,2014,36(1):33-38.
[13]舒兴平,胡习兵.T型钢半刚性连接节点的承载力分析[J].钢结构,2005,20(5):35-40.
[14]王涛.钢梁-钢筋混凝土柱全钢连接节点非线性有限元分析[J].钢结构,2016,31(6):62-66.
[15]宋传新.新型全螺栓连接与普通全螺栓连接抗震性能比较研究[J].钢结构,2016,31(5):41-46.
[16]王小安,梁颖元,李阳,等.筒架与筒架交替支撑式液压爬升整体钢平台模架设计计算分析[J].建筑施工,2014,36(4):383-389.
[2]马静.上海国际航空服务中心核心筒液压爬升整体钢平台模架安装技术研究[J].建筑施工,2015,37(11):1301-1303.
[3]李星荣.钢结构连接节点设计手册[M].北京:中国建筑工业出版社,2005.
[4]CEN:ENV 1993-1-1 Eurocode 3:Design of Steel Structures:Part 1.1 General Rules and Rules for Buildings[S].
[5]童乐为,周锋.主次梁螺栓连接节点试验研究报告[R].上海:同济大学建筑工程系钢与轻型结构研究室,2015.
[6]Qiang Xuhong,Frans S K B,Henk K,et al.Behaviour of Beamto-Column High Strength Steel End-Plate Connections Under Fire Conditions-Part 2:Numerical Study[J].Engineering Structures,2014,64:39-51.
[7]GB 50017—2003钢结构设计规范[S].
[8]施刚,石永久,王元清,等.多层钢框架半刚性端板连接的试验研究[J].清华大学学报:自然科学版,2004,44(3):391-394.
[9]夏志斌,姚谏.钢结构原理与设计[M].北京:中国建筑工业出版社,2011.
[10]完海鹰,周涛.半刚性节点研究综述及展望[J].钢结构,2006,21(1):37-40.
[11]龚剑,佘逊克,黄玉林.钢柱筒架交替支撑式液压爬升整体钢平台模架技术[J].建筑施工,2014,36(1):47-50.
[12]龚剑,朱毅敏,徐磊.超高层建筑核心筒架构施工中的筒架支撑式液压爬升整体钢平台模架技术[J].建筑施工,2014,36(1):33-38.
[13]舒兴平,胡习兵.T型钢半刚性连接节点的承载力分析[J].钢结构,2005,20(5):35-40.
[14]王涛.钢梁-钢筋混凝土柱全钢连接节点非线性有限元分析[J].钢结构,2016,31(6):62-66.
[15]宋传新.新型全螺栓连接与普通全螺栓连接抗震性能比较研究[J].钢结构,2016,31(5):41-46.
[16]王小安,梁颖元,李阳,等.筒架与筒架交替支撑式液压爬升整体钢平台模架设计计算分析[J].建筑施工,2014,36(4):383-389.