高强檩条在风吸力作用下稳定承载力的理论和试验研究
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摘要
由于具有良好的截面性能以及屋面板提供了稳定支撑作用，冷弯型钢檩条具有较高的承载能力。四十年来，屋面板檩条系统得到了大量的理论和试验研究，但由于该系统的复杂性导致现在还难以得出完善通用的设计方法。
本文对蒙皮支撑简支檩条在风吸力作用下的性能进行了理论分析和试验研究。把试验和理论计算结果与门式刚架规程、澳洲冷弯型钢结构规范及设计手册的计算结果进行了比较。提出了檩条在风吸力作用下的稳定计算的建议。研究成果有益于今后进一步改进和简化设计方法。
理论分析忽略变形后截面畸变，采用能量法，推导出檩条的位移、承载力的计算公式。试验和规范计算结果表明本文理论有很好的正确性。进行面积约28m~2的足尺模型的承载力试验时，同时对蒙皮支撑的檩条进行了抗扭刚度试验，为今后同类檩条设计过程中扭转刚度的取值提供了参考。
本文理论和试验结果对于今后规范的修订有一定的参考价值，对于试验所采用的BHP钢品也提供了推广应用的理论和试验依据。
Postgraduate Zeng Changyang
Supervisor Assoc.Prof. Shu Xingping
Cold-formed purlins have a high load carrying capacity because of their optimized cross-section and the stabilizing effect of the sheeting. The purlin-sheeting have been the subject of numerous theoretical and experimental investigations over the past four decades, but the complexity of the systems has led to great difficulty in developing a perfect and general model.
The theoretical analysis and experimental research on Behavior of simply supported purlins which screw-connected to corrugated sheeting was conducted under wind uplift loading. The stability bearing capacity of purlin was calculated by formulas of two criterion and some design manual. Some comments on the design of purlin are proposed after comparing the results, including the investigation result of this paper. The conclusions will improve and simplify the design methods in the future.
r The theoretical analysis ignored the distortion of the section and worked out the
equations of displacement, loading capacity by means of energy method. The equations provide accurate by the results of tests and computation. During the full scale model comprising an area of 28 m2 not only the conventional loading capacity tests were taken but also the rotational restraint was tested, which will provide valuable data to some similar structure members design.
The results of the experiments are willing to be a reference to the future modification of specifications. This paper is also written to provide some evidence for the application of certain BHP steel products.
本文对蒙皮支撑简支檩条在风吸力作用下的性能进行了理论分析和试验研究。把试验和理论计算结果与门式刚架规程、澳洲冷弯型钢结构规范及设计手册的计算结果进行了比较。提出了檩条在风吸力作用下的稳定计算的建议。研究成果有益于今后进一步改进和简化设计方法。
理论分析忽略变形后截面畸变，采用能量法，推导出檩条的位移、承载力的计算公式。试验和规范计算结果表明本文理论有很好的正确性。进行面积约28m~2的足尺模型的承载力试验时，同时对蒙皮支撑的檩条进行了抗扭刚度试验，为今后同类檩条设计过程中扭转刚度的取值提供了参考。
本文理论和试验结果对于今后规范的修订有一定的参考价值，对于试验所采用的BHP钢品也提供了推广应用的理论和试验依据。
Postgraduate Zeng Changyang
Supervisor Assoc.Prof. Shu Xingping
Cold-formed purlins have a high load carrying capacity because of their optimized cross-section and the stabilizing effect of the sheeting. The purlin-sheeting have been the subject of numerous theoretical and experimental investigations over the past four decades, but the complexity of the systems has led to great difficulty in developing a perfect and general model.
The theoretical analysis and experimental research on Behavior of simply supported purlins which screw-connected to corrugated sheeting was conducted under wind uplift loading. The stability bearing capacity of purlin was calculated by formulas of two criterion and some design manual. Some comments on the design of purlin are proposed after comparing the results, including the investigation result of this paper. The conclusions will improve and simplify the design methods in the future.
r The theoretical analysis ignored the distortion of the section and worked out the
equations of displacement, loading capacity by means of energy method. The equations provide accurate by the results of tests and computation. During the full scale model comprising an area of 28 m2 not only the conventional loading capacity tests were taken but also the rotational restraint was tested, which will provide valuable data to some similar structure members design.
The results of the experiments are willing to be a reference to the future modification of specifications. This paper is also written to provide some evidence for the application of certain BHP steel products.
引文
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[6] 朱勇军，张耀春．蒙皮支撑的钢构件静力工作性能研究综述．哈尔滨建筑大学学报，1995，28(4)：121—127
[7] A.H. Nilson. Shear Diaphragms of Light Guage Steel, Proceeding of ASCE Structure Division, 1960, 86(11):246—257
[8] Winter George. Lateral Bracing of Columns and Beams. Transactions ASCE, 1960,125(1):48—53
[9] Pincus G., Fisher G.P.. Behavior of Diapragm-Braced Columns and Beams. Journal of Structural Division, Proceeding of ASCE Structure Division, 1966, 92(2): 142—156
[10] Celebi Nuri. Diaphragm Braced Channel and Z-section Beams. In: Report No.344, Department of Structural Engineering, Cornell University, 1972
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[39]高轩能，邹银生，周绪红．薄壁构件几何非线性方程及其边界条件．湖南大学学报，1996，23(6)：98—103
[40]冷弯薄壁型钢结构设计手册编著组．冷弯薄壁型钢结构设计手册．北京：中国建筑工业出版社，1996
[41]张志刚．冷弯薄壁Z型檩条系统的设计要点．工程设计与应用研究，2000,(4)：23—26
[42]何锐，赵立斌，刘宗仁．冷弯薄壁型钢的应用研究．施工技术，1999，28(6)：36—39
[43]朱勇军，张耀春，刘锡良．蒙皮支撑的钢结构工作性能研究．工业建筑，1998，28(5)：28—35
[44]朱勇军，张耀春．蒙皮支撑的梁在静力荷载作用下的性能．哈尔滨建筑大学学报，1996，29(6)：15—20
[45]朱勇军，张耀春．蒙皮支撑的C型檩条在静力荷载作用下的性能．哈尔滨建筑大学学报，1997，30(3)：23—28
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[2] 李欣梅．蒙皮支撑C型檩条在风吸力作用下性能的理论分析和实验研究：[硕士学位论文]．天津：天津大学，1999
[3] 轻型钢结构设计手册编辑委员会．轻型钢结构设计手册．北京：中国建筑工业出版社，1996
[4] 李风．轻型钢结构建筑的应用与发展．工程应用与设计，2000，18(5)：15—18
[5] 林醒山，柏树新．国内外受力蒙皮研究发展概况．南京建筑工程学院学报，1992，46(2)：43—49
[6] 朱勇军，张耀春．蒙皮支撑的钢构件静力工作性能研究综述．哈尔滨建筑大学学报，1995，28(4)：121—127
[7] A.H. Nilson. Shear Diaphragms of Light Guage Steel, Proceeding of ASCE Structure Division, 1960, 86(11):246—257
[8] Winter George. Lateral Bracing of Columns and Beams. Transactions ASCE, 1960,125(1):48—53
[9] Pincus G., Fisher G.P.. Behavior of Diapragm-Braced Columns and Beams. Journal of Structural Division, Proceeding of ASCE Structure Division, 1966, 92(2): 142—156
[10] Celebi Nuri. Diaphragm Braced Channel and Z-section Beams. In: Report No.344, Department of Structural Engineering, Cornell University, 1972
[11] Paul Wikstrom. Z-and C-purlins Connected with Corrugated Steel Sheeting. In: Proceedings of the First Specialty Conference on Cold-Formed Steel Structures, University of Missouri-Rolla, 1971
[12] Simman A., Pekoz T.. Cold-Formed Steel Wall Stud Design. In: Proceedings of the Second Specialty Conference on Cold-Formed Steel Structures, University of Missouri-Rolla, 1973
[13] Willis Christopher T., Wallace Benjamin. Behavior of Cold-Formed Steel Purlins Under Gravity Loading. Journal of Structural Engineering, 1990, 116(8): 311—315
[14] Pekoz T., Soroushian P.. Behavior of C- and Z-purlins Under Wind Uplift. In: Department of Structural Engineering, Cornell University, February, 1981
[15] J. M. Davies, C. Jiang and D. ST. Quinton. Design of a Purlin System. In: Twelfth Specialty Conference on Cold-Formed Steel Structures, St. Louis, Missouri, U.S.A, 1994
[16] L. Kemp, P. E. Dunaiski, W. W. Bird. Structural Behaviour of Cold-Formed Profiles with Emphasis on the Zeta-profile. J. Construct. Steel Research, 1995, 34:207—224
[17] Dimos Poluzois and Lloyd J. Guillory. Finite Strip Method For Analysis of Cold-formed Purlins. Journal of Engineering Mechanics, 1991, 117(1):184—204
[18] Catherine J. Rousch & Gregory J. Hancock, Comparison of Tests of Bridged and Unbridged Purlins with a Non-linear Analysis Model, J. Construct. Steel Res. 1997,41(3):197—220
[19] R.M. Lucas, F.G.A. A1-Bermani and S.Kitipornchai, Modelling of Cold-Formed Purlin-Sheeting System—Part 2. Simplified Model. Thin-Walled Structures, 1997, 27(4): 263—286
[20] Vrany T., Behaviour of Simply Supported Cold-Formed Z-Purlins Restrained by Sheeting, In: Proceedings of conference Eurosteel 1999, Prague. Department of Steel Structures, CTU, (in Czech), 1999
[21] ENV, 1993-1-3 Design of Steel Structure, Part 1-3 Supplementary rules for cold formed thin gauge members and sheeting, ECS,1996
[22] Australian/New Zealand Standard. AS/NZS 4600:1996 Cold-formed Steel Structures, 1996
[23] 中国工程建设标准化协会标准．门式刚架轻型房屋钢结构技术规程(CECS102：98)，1999
[24] 杨斌．蒙皮支撑的C型檩条在风吸力下性能的试验研究：[硕士学位论文]．哈尔滨：哈尔滨建筑工程学院，1993
[25] 朱勇军．蒙皮支撑的钢构件静力性能研究：[博士学位论文]．哈尔滨：哈尔滨建筑大学，1996
[26]中华人民共和国国家标准．冷弯薄壁型钢结构技术规范(GBJ18-87)，1988
[27]朱渝春．开口薄壁杆理论基础及程序．重庆：重庆大学出版社，1990
[28]何福照，樊勇坚译，Atle Cjelsvuik著．薄壁杆件理论．北京：人民交通出版社，1987
[29]李开禧．弹性薄壁杆件翘曲．北京：中国建筑工业出版社，1990
[30]郭在田．薄壁杆件的弯曲与扭转．北京：中国建筑工业出版社，1989
[31]陈铁云，陈伯真．开口薄壁杆件的弯曲、扭转与稳定性．北京：国防工业出版社，1965
[32]陈绍蕃．钢结构设计原理(第二版)．北京：科学出版社，1998
[33]吕烈武，沈世钊，沈祖炎等．钢结构构件稳定理论．北京：中国建筑工业出版社，1983
[34]李存权．结构稳定和稳定内力．北京：人民交通出版社，2000
[35]夏志斌，潘有昌．结构稳定理论．北京：高等教育出版社，1989
[36][德]G．毕尔格麦斯特，H．斯托依普著，戴天明等译．稳定理论(上卷)．北京：中国工业出版社，1964
[37]钟善桐．钢结构稳定设计．北京：中国建筑工业出版社，1996
[38]陈绍蕃．钢结构稳定设计指南．北京：中国建筑工业出版社，1996
[39]高轩能，邹银生，周绪红．薄壁构件几何非线性方程及其边界条件．湖南大学学报，1996，23(6)：98—103
[40]冷弯薄壁型钢结构设计手册编著组．冷弯薄壁型钢结构设计手册．北京：中国建筑工业出版社，1996
[41]张志刚．冷弯薄壁Z型檩条系统的设计要点．工程设计与应用研究，2000,(4)：23—26
[42]何锐，赵立斌，刘宗仁．冷弯薄壁型钢的应用研究．施工技术，1999，28(6)：36—39
[43]朱勇军，张耀春，刘锡良．蒙皮支撑的钢结构工作性能研究．工业建筑，1998，28(5)：28—35
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