轻钢龙骨与钢框架组合结构设计方法研究与应用
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摘要
无比轻钢龙骨体系的主要来源于加拿大,是一种新型的钢结构体系,具有标准化程度高、空间布置灵活、抗震性能好、可工业化生产、建设周期短、环保和节能等特点,近20年来在北美等地得到了广泛的应用,但主要应用于低层住宅。把无比轻钢龙骨体系引进到我国并用于多层住宅,完全符合国家产业政策,具有广泛的应用前景。
无比轻钢龙骨体系是由小桁架等基本单元组合而成的,构造复杂,目前在我国尚无相应的设计标准和规范。
武汉理工大学于2005年针对无比轻钢龙骨体系的桁架梁、桁架柱、墙体及节点等做了一系列的试验研究和有限元分析,并设计了一幢由纯无比钢做成的六层综合楼,为无比轻钢龙骨体系在中国的推广和应用提供参考和依据。但是实际工程当中大量出现的无比轻钢龙骨与钢框架组合结构,到目前为止尚无很好的设计计算方法。
本文根据实际工程中一栋5层的宿舍楼作为研究对象,针对无比轻钢龙骨与钢框架组合结构,采用通用有限元软件SAP2000和ABAQUS完成了一系列有限元分析,并对关键的节点做了详细的描述,具体工作归纳如下:
1、针对该工程的一榀框架,对上部无比轻钢龙骨按照等效刚度法简化后在ABAQUS里面进行模拟分析,本文称为模型一
2、针对该工程的一榀框架,对上部无比轻钢龙骨按照实际的梁单元,而蒙皮按照壳单元在SAP2000里面进行模拟分析,本文称为模型二
3、针对该工程的一榀框架,对上部无比轻钢龙骨按照等效刚度法简化后的梁单元,而蒙皮按照壳单元在SAP2000里面进行模拟分析,本文称为模型三
4、针对该工程的一榀框架,对上部无比轻钢龙骨及蒙皮均按照梁单元在SAP2000里面进行模拟分析,本文称为模型四
得出结构在风载和地震荷载作用下的水平位移,并与相应的规范限制值进行了比较。结果说明本文提出的针对无比钢结构体系与钢框架的组合结构的SAP2000有限元建模和分析方法是可行的;无比钢结构体系可用于建造多层房屋;在水平风载和地震作用下,这种组合结构的层间和顶点水平位移均可以达到规范要求,由此得出实际工程中设计此类结构的最优化方法。
5、对该组合结构的关键节点进行了详细的描述
Web Light-Gauge steel joist structure system (Web steel) is a new type of steel structure, coming from Canada with such many advantages as higher standardizing, assigning space flexible, good performance of the seismic resistant, industrialization producing, short Construction period, protecting environment and economizing energy sources et al. This kind of structure has been used mostly in low story residential building for 20 years in North America. It agrees our national estate policy applying Web steel to multiple-story residential building. Web steel has a good future in China.
Web steel is made of small trusses and has complex constitution. There is no design standard and code for this kind of structure. Testing and analysis are needed.
A series of testing research and finite element analysis were done in Wuhan University of Technology for the Web steel truss beam, truss column, wall and joint. A 6-story Web steel building was designed. The research work was provided as a reference for the popularization and application of Web steel in China. But during the actual project , there are many light-gauge steel and steel frame composite structure which could not to be designed and calculated very good so far.
The article according to an actual project 5-story-dormitory, in view of light-gauge steel and steel frame composite structure, a series of finite element analysis were done with SAP2000 and ABAQUS, and the key joints were descripted detailedly . Idiographic work as follows:
1. In view of a frame, finite element analysis were done in ABAQUS according to the equivalent stiffness method , this model is called the first model
2. In view of a frame, finite element analysis were done in SAP2000 according to the actual beam unit, and the shell unit to simply the outer covering, this model is called the second model
3. In view of a frame, finite element analysis were done in SAP2000 according to the equivalent stiffness method to simply the beam unit, and the shell unit to simply the outer covering, this model is called the third model
4. In view of a frame, finite element analysis were done in SAP2000 according to the equivalent stiffness method to simply the beam unit, and the beam unit to simply the outer covering, this model is called the forth model
We can get the displacement under the wind load and the earthquake load , and compare with the code value. The analysis and comparison results prove the model and the analysis method is valid with SAP2000 in the article towards the light-gauge steel and steel frame composite structure; The WEB Steel technique can be used in the multi-storey building. The inter-storey and top horizontal displacement can be smaller than the code values for the WEB Steel building under the wind load and earthquake.From this we can obtains the optimized method to design this kind of structure in the actual project
5. The key joints were descripted detailedly
无比轻钢龙骨体系是由小桁架等基本单元组合而成的,构造复杂,目前在我国尚无相应的设计标准和规范。
武汉理工大学于2005年针对无比轻钢龙骨体系的桁架梁、桁架柱、墙体及节点等做了一系列的试验研究和有限元分析,并设计了一幢由纯无比钢做成的六层综合楼,为无比轻钢龙骨体系在中国的推广和应用提供参考和依据。但是实际工程当中大量出现的无比轻钢龙骨与钢框架组合结构,到目前为止尚无很好的设计计算方法。
本文根据实际工程中一栋5层的宿舍楼作为研究对象,针对无比轻钢龙骨与钢框架组合结构,采用通用有限元软件SAP2000和ABAQUS完成了一系列有限元分析,并对关键的节点做了详细的描述,具体工作归纳如下:
1、针对该工程的一榀框架,对上部无比轻钢龙骨按照等效刚度法简化后在ABAQUS里面进行模拟分析,本文称为模型一
2、针对该工程的一榀框架,对上部无比轻钢龙骨按照实际的梁单元,而蒙皮按照壳单元在SAP2000里面进行模拟分析,本文称为模型二
3、针对该工程的一榀框架,对上部无比轻钢龙骨按照等效刚度法简化后的梁单元,而蒙皮按照壳单元在SAP2000里面进行模拟分析,本文称为模型三
4、针对该工程的一榀框架,对上部无比轻钢龙骨及蒙皮均按照梁单元在SAP2000里面进行模拟分析,本文称为模型四
得出结构在风载和地震荷载作用下的水平位移,并与相应的规范限制值进行了比较。结果说明本文提出的针对无比钢结构体系与钢框架的组合结构的SAP2000有限元建模和分析方法是可行的;无比钢结构体系可用于建造多层房屋;在水平风载和地震作用下,这种组合结构的层间和顶点水平位移均可以达到规范要求,由此得出实际工程中设计此类结构的最优化方法。
5、对该组合结构的关键节点进行了详细的描述
Web Light-Gauge steel joist structure system (Web steel) is a new type of steel structure, coming from Canada with such many advantages as higher standardizing, assigning space flexible, good performance of the seismic resistant, industrialization producing, short Construction period, protecting environment and economizing energy sources et al. This kind of structure has been used mostly in low story residential building for 20 years in North America. It agrees our national estate policy applying Web steel to multiple-story residential building. Web steel has a good future in China.
Web steel is made of small trusses and has complex constitution. There is no design standard and code for this kind of structure. Testing and analysis are needed.
A series of testing research and finite element analysis were done in Wuhan University of Technology for the Web steel truss beam, truss column, wall and joint. A 6-story Web steel building was designed. The research work was provided as a reference for the popularization and application of Web steel in China. But during the actual project , there are many light-gauge steel and steel frame composite structure which could not to be designed and calculated very good so far.
The article according to an actual project 5-story-dormitory, in view of light-gauge steel and steel frame composite structure, a series of finite element analysis were done with SAP2000 and ABAQUS, and the key joints were descripted detailedly . Idiographic work as follows:
1. In view of a frame, finite element analysis were done in ABAQUS according to the equivalent stiffness method , this model is called the first model
2. In view of a frame, finite element analysis were done in SAP2000 according to the actual beam unit, and the shell unit to simply the outer covering, this model is called the second model
3. In view of a frame, finite element analysis were done in SAP2000 according to the equivalent stiffness method to simply the beam unit, and the shell unit to simply the outer covering, this model is called the third model
4. In view of a frame, finite element analysis were done in SAP2000 according to the equivalent stiffness method to simply the beam unit, and the beam unit to simply the outer covering, this model is called the forth model
We can get the displacement under the wind load and the earthquake load , and compare with the code value. The analysis and comparison results prove the model and the analysis method is valid with SAP2000 in the article towards the light-gauge steel and steel frame composite structure; The WEB Steel technique can be used in the multi-storey building. The inter-storey and top horizontal displacement can be smaller than the code values for the WEB Steel building under the wind load and earthquake.From this we can obtains the optimized method to design this kind of structure in the actual project
5. The key joints were descripted detailedly
引文
[1]吴晓晖.薄壁冷弯型钢小桁架建筑体系.住宅科技,2004(14)
[2]李登满.冷弯薄壁型无比钢建筑体系.建设科技,2005(18)
[3]王元清、石永久等.现代轻钢结构建筑及其在我国的应用.建筑结构学报.第23卷 2001年2月
[4]住宅产业现代化科技工程.建设部科技司国家″十五″重大科技项目建议书
[5]袁巧云.新型轻钢龙骨体系桁架梁承载力的试验及影响因素研究:[硕士学位论文].武汉:武汉理工大学,2005
[6]胡海兵.轻钢龙骨墙体在水平荷载作用下的试验研究:[硕士学位论文].武汉:武汉理工大学,2005
[7]北京金土木软件技术有限公司.SAP2000中文版使用指南指南.人民交通出版社 1997.4
[8]庄茁.ABAQUS/Standard有限元软件入门指南.清华大学出版社.1998.12
[9]陈富生、邱国华、范重,高层建筑钢结构设计(第二版),2004年7月
[10]李志刚、王浩、郝际平、蔡益燕,偏心支撑框架的设计计算方法,钢结构,2004年第3期
[11]张跃峰,建筑中的错列桁架结构体系,钢结构,2001年第5期
[42]尹志明、周绪红、许红胜,交错析架结构体系在钢结构住宅中的应用,建筑技术开发,2003年第1期
[13]中华人民共和国建筑工业行业标准JG/T182-2005,低层轻型钢结构装配式住宅技术要求
[14]周绪红、石宇、周天华、刘永健、周期石、狄谨、卢林枫,低层冷弯薄壁型钢结构住宅体系,建筑科学与工程学报,2005年6月
[15]潘红晓、刘承宗,北美轻型钢结构住宅体系及应用,建筑钢结构进展,第5卷增刊2003年
[16]高光虎,高层及多层钢结构住宅设计,上海宝钢工程设计,2001年第3期
[17]孙英、张跃峰,本溪华夏花园钢结构住宅设计,建筑学报,2001年第7期
[18]杜爽、庄惟敏,钢结构住宅的技术性探讨,新建筑,2002年第1期
[19]曲成平、任宏、冯为民,多层H型钢钢结构住宅的经济性评价,重庆建筑大学学报,2004年8月
[20]童悦仲、娄乃琳,美国的多层轻钢结构住宅,住宅科技,2004年第11期
[21]E.F.Gad,C.F.Duffield,GL.HutChinson,D.S.Mansell and G.Stark,Lateral Performanee of cold-formed steel-framed domestic struetures,Engineering Structures,January 1999
[22]吴迪,徐海燕.多层住宅轻钢结构静力计算程序设计,华东交通大学学报,2005年第4期
[23]王京辉、沈小璞、张红亚,风荷载下超薄壁型轻钢结构多层住宅结构体系的分析,安徽建筑工业学院学报,2005年第5期
[24]黄怡、王元清、陈宏,多层轻钢框架结构的抗震性能分析,工业建筑,2006年第12期
[25]陈坚、陆国威.新型轻钢龙骨多层结构体系分析,工程建设,2006年2月
[26]赵成文、宋波等,轻钢结构住宅支撑体系抗震性能研究,沈阳建筑大学学报(自然科学版),2006年7月
[27]GB50011-2001.建筑抗震设计规范.北京:中国计划出版社,2001
[28]王小平.大跨度金属拱型波纹屋顶理论与试验研究
[29]周操.新型轻钢龙骨体系墙体计算方法研究:[硕士学位论文].武汉:武汉理工大学,2005
[30]GB50017-2003.钢结构设计规范.北京:中国计划出版社,2003
[31]建筑结构荷载规范.北京:中国计划出版社,2002
[32]Tan,S.H.,Seah,K.,Fok,S.C,,Collections in Cold-Formed Thin-Walled Structure,Computer&Structure,July 1996
[33]陈绍蕃,钢结构设计原理(第三版),科学出版社,2005年4月
[34]黄川、崔佳、龙莉萍,自攻螺钉连接冷弯薄壁C型钢梁柱节点试验及分析,重庆建筑大学学报,2003年第10期
[35]徐凌、朱浮声,不同节点轻钢框架的受力性能试验研究,东北大学学报,2006年第10期
[36]石永久、苏迪、王元清,混凝土楼板对钢框架梁柱节点抗震性能影响的试验研究,土木工程学报,2006年第9期
[37]湖北省发展计划委员会,冷弯薄壁型钢结构技术规范,中国计划出版社,2002年第12期
[38]Plywood Design Fundamentals.
[39]Australian Institute of Steel Construction.Structural Performance Requirements for Domestic Steel Building
[40]Tse.D,Oayawansa.P.H.Elastic deformation of steel beams with web penetrations.National conference Publication-institution of Engineers.Australia.N90Pt.10,1990.P323-326
[41]Oesai.S.B.Horizontal web steel as shear reinforcement.Magazine of concrete Research,V47,n171.Jun.1995,P143-152
[42]Redwood.Richard,Cho.soon.Ho.Design of steel and composite beams with web openings.Journal of constructional steel Research.V25,nl-2.1993,P23-41
[43]Zallen.Rubin.M.Problems with industry standard for erecting open web steel joists.Forensic Engineering,Proceedings of the congress.2003,P477-484
[44]Kern.Pobi,Maranian.Peter,Lyons.Pobert,Brandow.Gregg.E.Interim review on Welded Unreinforced Flange Welded Web(WUF-W)steel moment frame connections.Forensic Engineering,Proceedings of the congress.2003,P127-141
[45]Nethercot,O.A.,Lawson,R.M.,Lateral Stability of Steel Beams And Columns,The Steel Constr.Inst.,1992
[46]Darwin.David,Lucas.Warren.K.LRFD for steel and composite beams with web openings.Journal of Structural Engineering.V116,n6,Jun.1990,P1579-1593
[47]American Iron and Steell Institute.Prescriptive Method for Residential Cold--Formed Steel Framing
[48]AISI,Specification for the Cesign of Cold-Formed Steel Structural Members,1986
[49]Winter,G.,Commentary on the 1968 Edition of the Specification for the Design of Cold-Formed Steel Structural Members,AISI,1977
[50]Nethercot,D.A.,Chapterl,Beams and Beam-Columns,Stability and Strength,Narayanan ed.,Applied Sciences,1983
[51]G.Bollio,C.Poggi&P.Zannon,Elastic plastic bending of plate subject to concentrated loads,Joints in Structural Steelwork,Pentech Press,1981,pp2.3-2.25.
[52]江冰.浅谈无比钢环保住宅[J].工程与建设,2006,20(6)
[53]王小平,刘峰等.新型轻钢龙骨体系水平位移有限元分析方法[J].工业建筑,2006,(7)
[54]Wang X.P.,Zhou C.and Jiang C.R.,Experimental Research of Truss Beams of Light-Gauge Joist Steel System,Proceedings of The Ninth International Symposium on Structural Engineering for Young Experts,Fuzhou & Xiamen,China,August 18-21 2006
[55]张跃峰.低层居住建筑中的轻钢龙骨体系[J].钢结构,2001,(2)
[2]李登满.冷弯薄壁型无比钢建筑体系.建设科技,2005(18)
[3]王元清、石永久等.现代轻钢结构建筑及其在我国的应用.建筑结构学报.第23卷 2001年2月
[4]住宅产业现代化科技工程.建设部科技司国家″十五″重大科技项目建议书
[5]袁巧云.新型轻钢龙骨体系桁架梁承载力的试验及影响因素研究:[硕士学位论文].武汉:武汉理工大学,2005
[6]胡海兵.轻钢龙骨墙体在水平荷载作用下的试验研究:[硕士学位论文].武汉:武汉理工大学,2005
[7]北京金土木软件技术有限公司.SAP2000中文版使用指南指南.人民交通出版社 1997.4
[8]庄茁.ABAQUS/Standard有限元软件入门指南.清华大学出版社.1998.12
[9]陈富生、邱国华、范重,高层建筑钢结构设计(第二版),2004年7月
[10]李志刚、王浩、郝际平、蔡益燕,偏心支撑框架的设计计算方法,钢结构,2004年第3期
[11]张跃峰,建筑中的错列桁架结构体系,钢结构,2001年第5期
[42]尹志明、周绪红、许红胜,交错析架结构体系在钢结构住宅中的应用,建筑技术开发,2003年第1期
[13]中华人民共和国建筑工业行业标准JG/T182-2005,低层轻型钢结构装配式住宅技术要求
[14]周绪红、石宇、周天华、刘永健、周期石、狄谨、卢林枫,低层冷弯薄壁型钢结构住宅体系,建筑科学与工程学报,2005年6月
[15]潘红晓、刘承宗,北美轻型钢结构住宅体系及应用,建筑钢结构进展,第5卷增刊2003年
[16]高光虎,高层及多层钢结构住宅设计,上海宝钢工程设计,2001年第3期
[17]孙英、张跃峰,本溪华夏花园钢结构住宅设计,建筑学报,2001年第7期
[18]杜爽、庄惟敏,钢结构住宅的技术性探讨,新建筑,2002年第1期
[19]曲成平、任宏、冯为民,多层H型钢钢结构住宅的经济性评价,重庆建筑大学学报,2004年8月
[20]童悦仲、娄乃琳,美国的多层轻钢结构住宅,住宅科技,2004年第11期
[21]E.F.Gad,C.F.Duffield,GL.HutChinson,D.S.Mansell and G.Stark,Lateral Performanee of cold-formed steel-framed domestic struetures,Engineering Structures,January 1999
[22]吴迪,徐海燕.多层住宅轻钢结构静力计算程序设计,华东交通大学学报,2005年第4期
[23]王京辉、沈小璞、张红亚,风荷载下超薄壁型轻钢结构多层住宅结构体系的分析,安徽建筑工业学院学报,2005年第5期
[24]黄怡、王元清、陈宏,多层轻钢框架结构的抗震性能分析,工业建筑,2006年第12期
[25]陈坚、陆国威.新型轻钢龙骨多层结构体系分析,工程建设,2006年2月
[26]赵成文、宋波等,轻钢结构住宅支撑体系抗震性能研究,沈阳建筑大学学报(自然科学版),2006年7月
[27]GB50011-2001.建筑抗震设计规范.北京:中国计划出版社,2001
[28]王小平.大跨度金属拱型波纹屋顶理论与试验研究
[29]周操.新型轻钢龙骨体系墙体计算方法研究:[硕士学位论文].武汉:武汉理工大学,2005
[30]GB50017-2003.钢结构设计规范.北京:中国计划出版社,2003
[31]建筑结构荷载规范.北京:中国计划出版社,2002
[32]Tan,S.H.,Seah,K.,Fok,S.C,,Collections in Cold-Formed Thin-Walled Structure,Computer&Structure,July 1996
[33]陈绍蕃,钢结构设计原理(第三版),科学出版社,2005年4月
[34]黄川、崔佳、龙莉萍,自攻螺钉连接冷弯薄壁C型钢梁柱节点试验及分析,重庆建筑大学学报,2003年第10期
[35]徐凌、朱浮声,不同节点轻钢框架的受力性能试验研究,东北大学学报,2006年第10期
[36]石永久、苏迪、王元清,混凝土楼板对钢框架梁柱节点抗震性能影响的试验研究,土木工程学报,2006年第9期
[37]湖北省发展计划委员会,冷弯薄壁型钢结构技术规范,中国计划出版社,2002年第12期
[38]Plywood Design Fundamentals.
[39]Australian Institute of Steel Construction.Structural Performance Requirements for Domestic Steel Building
[40]Tse.D,Oayawansa.P.H.Elastic deformation of steel beams with web penetrations.National conference Publication-institution of Engineers.Australia.N90Pt.10,1990.P323-326
[41]Oesai.S.B.Horizontal web steel as shear reinforcement.Magazine of concrete Research,V47,n171.Jun.1995,P143-152
[42]Redwood.Richard,Cho.soon.Ho.Design of steel and composite beams with web openings.Journal of constructional steel Research.V25,nl-2.1993,P23-41
[43]Zallen.Rubin.M.Problems with industry standard for erecting open web steel joists.Forensic Engineering,Proceedings of the congress.2003,P477-484
[44]Kern.Pobi,Maranian.Peter,Lyons.Pobert,Brandow.Gregg.E.Interim review on Welded Unreinforced Flange Welded Web(WUF-W)steel moment frame connections.Forensic Engineering,Proceedings of the congress.2003,P127-141
[45]Nethercot,O.A.,Lawson,R.M.,Lateral Stability of Steel Beams And Columns,The Steel Constr.Inst.,1992
[46]Darwin.David,Lucas.Warren.K.LRFD for steel and composite beams with web openings.Journal of Structural Engineering.V116,n6,Jun.1990,P1579-1593
[47]American Iron and Steell Institute.Prescriptive Method for Residential Cold--Formed Steel Framing
[48]AISI,Specification for the Cesign of Cold-Formed Steel Structural Members,1986
[49]Winter,G.,Commentary on the 1968 Edition of the Specification for the Design of Cold-Formed Steel Structural Members,AISI,1977
[50]Nethercot,D.A.,Chapterl,Beams and Beam-Columns,Stability and Strength,Narayanan ed.,Applied Sciences,1983
[51]G.Bollio,C.Poggi&P.Zannon,Elastic plastic bending of plate subject to concentrated loads,Joints in Structural Steelwork,Pentech Press,1981,pp2.3-2.25.
[52]江冰.浅谈无比钢环保住宅[J].工程与建设,2006,20(6)
[53]王小平,刘峰等.新型轻钢龙骨体系水平位移有限元分析方法[J].工业建筑,2006,(7)
[54]Wang X.P.,Zhou C.and Jiang C.R.,Experimental Research of Truss Beams of Light-Gauge Joist Steel System,Proceedings of The Ninth International Symposium on Structural Engineering for Young Experts,Fuzhou & Xiamen,China,August 18-21 2006
[55]张跃峰.低层居住建筑中的轻钢龙骨体系[J].钢结构,2001,(2)