自攻螺钉连接抗剪性能及其设计方法的研究
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摘要
机械连接是钢结构的基本连接形式之一。在轻钢结构的应用中,有大量的中、薄厚度钢板(厚度≤6mm)之间的连接。这时采用自攻螺钉连接与传统的螺栓连接相比,有着更为经济,便利、快捷的优点。
抗剪连接是最常见的螺钉连接形式。国内、外自50年代便开始对压型钢板间或其与底层支承结构间的连接特性进行试验研究。但由于试验中均以很薄的压型钢板作为一侧或两侧的连接板,加之自攻螺钉的强度很高,因此试验中连接的破坏形式均是压型钢板的承压破坏,自攻螺钉本身的强度却没有发挥出来。由这些试验数据所得到的自攻螺钉连接受剪的承载力计算公式也无法运用到中、薄厚度钢板由自攻螺钉连接的设计中。本文分别对自攻螺钉双面受剪试件与单面受剪试件进行静力试验研究,对其受剪性能与抗剪承载力的设计方法进行了研究,主要内容包括:
根据试验需要自行设计了一套安全、实用、准确的加载装置与位移量测装置。
参照现已研究的自攻螺钉连接受剪破坏的主要模式,并结合本试验的试验装置,确定了自攻螺钉连接中、薄厚度钢板受剪试件的具体形式与尺寸。进行89个自攻螺钉双面受剪试件与68个自攻螺钉单面受剪试件的静力试验。通过试验,测得自攻螺钉连接受剪破坏时所施加的荷载N以及在该荷载下试件连接处位移δ的数据,并观测记录了试验现象。
通过试验现象与试验数据,分析了自攻螺钉连接双面受剪与单面受剪的破坏过程及破坏形式。同时利用试验数据,经过分析回归,得到单个自攻螺钉连接中、薄厚度钢板的抗剪承载力设计值的计算方法,并给出了自攻螺钉受剪连接的相关构造要求与施工要求建议。
Mechanical connection is one of basic types of the steel structure connections. Self-Tapping Screw connection is one efficiency type of mechanical connection. In the connections of lightweight steel structures, self-Tapping Screws are widely used due to the advantages of economy, convenience and efficient installing compared with traditional bolt connecting when connecting moderate and thin thickness steel plates, (thickness≤6mm).
Self-Tapping Screw connections is a kind of commonly used Shear Connection. Experimental researches on characteristics of connections between profiled steel sheet and other structural elements (including profiled steel sheet, first floor supporting structural element or shear connectors) are extensive proceeded since 1950s. However, of all the tests, the used profiled steel sheet is so thin and the high strength of Self-Tapping Screw that all the failure modes are bearing failure of profiled steel sheet without developing the strength of Self-Tapping Screw. The experimental data can not be used in designing the Self-Tapping Screw connected moderate or thin thickness steel plates. In this dissertation, the shear behavior of single- sided and double-sided Self-tapping Screw is tested; the shear performance and the design method of shear bearing capacity are studied. The main contents include:
According to the demands of experiment, a set of safe, practical and accurate loading device and displacement measurement equipment is designed.
Referring to the basic failure pattern of the Self-tapping Screw connections and the test equipment of this test, specific form and size of the members which are connected by Self-tapping Screws are determined.
Tests on shear resistance behavior of 89 Self-Tapping Screw of double-sided shear members and 68 single-sided ones are carried out. Throughout the test, the applied load N when the Self-tapping Screw connections fails and the displacementδof the Self-tapping Screw connected joint under load N are obtained. Meanwhile the experimental survey and results record are carefully taken.
From the test observation and results, the development of shear stress and the failure modes of double-sided and the single-sided Self-Tapping Screw connections under shear stress are analyzed. Experimental data are used to regress a new design method of single Self-Tapping Screw connected moderate and thin thickness steel plates; relevant structure requirements and construction requirements of the Self-tapping Screw connections in shear are suggested.
抗剪连接是最常见的螺钉连接形式。国内、外自50年代便开始对压型钢板间或其与底层支承结构间的连接特性进行试验研究。但由于试验中均以很薄的压型钢板作为一侧或两侧的连接板,加之自攻螺钉的强度很高,因此试验中连接的破坏形式均是压型钢板的承压破坏,自攻螺钉本身的强度却没有发挥出来。由这些试验数据所得到的自攻螺钉连接受剪的承载力计算公式也无法运用到中、薄厚度钢板由自攻螺钉连接的设计中。本文分别对自攻螺钉双面受剪试件与单面受剪试件进行静力试验研究,对其受剪性能与抗剪承载力的设计方法进行了研究,主要内容包括:
根据试验需要自行设计了一套安全、实用、准确的加载装置与位移量测装置。
参照现已研究的自攻螺钉连接受剪破坏的主要模式,并结合本试验的试验装置,确定了自攻螺钉连接中、薄厚度钢板受剪试件的具体形式与尺寸。进行89个自攻螺钉双面受剪试件与68个自攻螺钉单面受剪试件的静力试验。通过试验,测得自攻螺钉连接受剪破坏时所施加的荷载N以及在该荷载下试件连接处位移δ的数据,并观测记录了试验现象。
通过试验现象与试验数据,分析了自攻螺钉连接双面受剪与单面受剪的破坏过程及破坏形式。同时利用试验数据,经过分析回归,得到单个自攻螺钉连接中、薄厚度钢板的抗剪承载力设计值的计算方法,并给出了自攻螺钉受剪连接的相关构造要求与施工要求建议。
Mechanical connection is one of basic types of the steel structure connections. Self-Tapping Screw connection is one efficiency type of mechanical connection. In the connections of lightweight steel structures, self-Tapping Screws are widely used due to the advantages of economy, convenience and efficient installing compared with traditional bolt connecting when connecting moderate and thin thickness steel plates, (thickness≤6mm).
Self-Tapping Screw connections is a kind of commonly used Shear Connection. Experimental researches on characteristics of connections between profiled steel sheet and other structural elements (including profiled steel sheet, first floor supporting structural element or shear connectors) are extensive proceeded since 1950s. However, of all the tests, the used profiled steel sheet is so thin and the high strength of Self-Tapping Screw that all the failure modes are bearing failure of profiled steel sheet without developing the strength of Self-Tapping Screw. The experimental data can not be used in designing the Self-Tapping Screw connected moderate or thin thickness steel plates. In this dissertation, the shear behavior of single- sided and double-sided Self-tapping Screw is tested; the shear performance and the design method of shear bearing capacity are studied. The main contents include:
According to the demands of experiment, a set of safe, practical and accurate loading device and displacement measurement equipment is designed.
Referring to the basic failure pattern of the Self-tapping Screw connections and the test equipment of this test, specific form and size of the members which are connected by Self-tapping Screws are determined.
Tests on shear resistance behavior of 89 Self-Tapping Screw of double-sided shear members and 68 single-sided ones are carried out. Throughout the test, the applied load N when the Self-tapping Screw connections fails and the displacementδof the Self-tapping Screw connected joint under load N are obtained. Meanwhile the experimental survey and results record are carefully taken.
From the test observation and results, the development of shear stress and the failure modes of double-sided and the single-sided Self-Tapping Screw connections under shear stress are analyzed. Experimental data are used to regress a new design method of single Self-Tapping Screw connected moderate and thin thickness steel plates; relevant structure requirements and construction requirements of the Self-tapping Screw connections in shear are suggested.
引文
1宋曼华.钢结构设计与计算.机械工业出版社, 2000: 16~80
2贾连光,梁玉君,周广师.我国多层轻型房屋钢结构建筑的应用与展望.沈阳建筑工程学院学报. 2001, 17(1): 65~68
3张耀春.钢结构设计原理.高等教育出版社, 2004,8: 85~108
4祝燮权.实用紧固件手册.上海科学技术出版社, 2005,1: 17.2~17.14
5侯兆欣,吕健,王宇红.自攻螺钉连接在建筑上的应用.工业建筑. 1999, 29(9): 50~52
6黄川.冷弯薄壁C型钢梁柱半刚性节点实验及有限元分析.重庆大学硕士研究生论文. 2003: 1~21
7张跃峰.低层居住建筑中的轻钢龙骨结构体系.钢结构, 2001 , 16(2) : 1~4
8 Tan. S. H., Seah, K. and, Fok, S. C., Connections in Cold-Formed Thin-Walled Structure, Computer&Structure. 1991, 60(1): 169-172
9 D.A.Nethercot, Utilisation of Experimentally Obtained Connection Data in Assessting the Performance of Steel Frames, Proceedings, ASCE, Edited by W.F.Chen. 1985: 13~39
10 GB500018-2002冷弯薄壁型钢结构技术规范.中华人民共和国国家标准,中国计划出版社, 2002: 31~42
11 GAO Xuangneng, ZOU Yinsheng, ZHOU Xuhong. Buckling Analysis under Combined Loading of Thin-walled Plate Assembiles Using Bubble Functions. ACTA MECHANICA SOLIDA SINICA, 2002,13(2)
12 ALI M A, SRIDHARAN S A. Versatile Model For Interactive Buckling of Columns and Beam-columns. International Journal of Solids and Structures, 1988, 24(5): 296~305
13 R. Delesques, Le Calcue, Des Poutres Ajourees, Construction Metallique, 1969(4)
14 N. S. Trahair, M. Bradford. The Behaviour and Design of Steel Structures. London: Chapman and Hall, 1991
15 F. Bleich. Buckling Strength of Metal Structures. Mc-Graw-Hill, 1995, 10(9): 233~238
16 EN 1993-1-2 Eurocode3: Design of Steel Structure. October 2001: 69~71
17 BS 5950-1:2000 Structural Use of Steelwork in Building-Part 1: Code of Practice for Design—Rolled and Welded Sections. BSI. 01 February 2005: 129~150
18 BS 5950-Part6:1995 Structural Use of Steelwork in Building-Part 6. Code of Practice for Design of Light Gauge Profiled Steel Sheeting. BSI. 01 February 2005: 41~43
19 BS 5950-5:1998 Structural Use of Steelwork in Building-Part 5. Code of Practice for Design of Cold Formed Thin Gauge Sections. BSI. 01 February 2005: 35~43
20 AISC-LRFD93 Load and Resistance Factor Design Specification for Structu-ral Steel Buildings. American Institute of Steel Construction, Inc. 2001: 49~70
21 Standards Association of Australia, Sydney, Australia.Australian Standard Steel Structures AS4100, 1900
22 Standards Association of Australia, Sydney, Australia.Cold-formed Steel Structures AS4600, 1900
23欧洲钢结构建议.北京钢铁设计研究总院译. E.C.C.S. 1978
24 American Iron and Steel Institute 2003:“Commentary on the Prescriptive Method for One and Two Family Dwellings– 2003,”1140 Connecticut Avenue, NW Suite 705 Washington, DC 20036-4011. December 31, 2003: 5~7
25 American Iron and Steel Institute:“North American Specification for the Design of Cold-Formed Steel Structural Members,”CSA S136-01, American Iron and Steel Institute and Canadian Standards Association 2002, 1st Printing-June 2002: 118~121
26于炜文.冷成型钢结构设计.董军,夏冰青译.第一版.中国水利水电出版社,知识产权出版社, 2003: 403~407
27 Pekoz, T.:“Design of Cold-Formed Steel Screw Connections,”Proceedings of the 10th International Specialty Conference on Cold-Formed Steel Structures, University of Missouri-Rolla, Oct. 1990
28 European Reconmmendations for Connetions in Thin-walled Structural Steel Elemets. E.C.C.S Commitree Tct Working Groop TWG7.2, October, 1981
29朱景仕. V—125型压型钢板受力蒙皮性能研究.哈尔滨建筑大学硕士研究生论文. 1990: 1~10
30潘景龙.自攻螺钉连接的抗剪性能研究.哈尔滨工业大学学报. 1995, 28(6): 41~47
31李忠献.工程结构试验理论与技术.天津大学出版社, 2004
32姚启均.金属机械性能试验常用数据公式.中国工业出版社, 1962, 8
33 GB500017-2003钢结构设计规范.中华人民共和国国家标准.中国计划出版社, 2003
34 GB500009-2001建筑结构荷载规范.中华人民共和国国家标准.中国建筑工业出版社, 2002: 31~4
35 B. O.古兹马诺瓦奇, N.威廉斯.钢结构设计原理.庄海涛,邵容光,严善宽译.第一版.人民交通出版社, 1985: 83~87
36张贵祥,石永久,王元清.铝合金构件普通螺栓抗剪连接设计方法.河北建筑科技学院学报. 2006,12: 20~22
37 HYEONG J, KIM, JOSEPH A, YURA. Theeffect of Ultimate-to-yield Ratio on the Bearing Strength of Bolted Connections. Journal of Constructional Steel Research, 1999, (49): 255~262
38 D. Matteesco, G. Mercea, Uo Nouveau Type De Poueres Ajourees, Conctruc-tion Metallipue. 1983, (3): 3~14
39戴振藩.美国高强度螺栓连接的现状.世界桥梁, 1979, (02): 55~73
40 J. W. Fisher, Guide to Design Criteria for Bloted and Riveted Joints, 1974
41 RomaldN. Allen and Johu W. Fisher. Bolt Joints With Oversize; or Slotted Holes. ASCE Journal, Vol, 94, St, 9, September. 1968
42李德滋.国外规范关于铆钉、普通螺栓、高强螺栓的分析和我们的建议.冶金建筑. 1983
43董天纯.剪-压式高强螺栓连接.工业建筑. 1983, (3): 36~43
44张玉田,李德滋.国外剪-压型高强螺栓连接的应用和研究(上).冶金建筑.1982, (10): 15~20
45张玉田,李德滋.国外剪-压型高强螺栓连接的应用和研究(下).冶金建筑. 1982, (11): 51~52
2贾连光,梁玉君,周广师.我国多层轻型房屋钢结构建筑的应用与展望.沈阳建筑工程学院学报. 2001, 17(1): 65~68
3张耀春.钢结构设计原理.高等教育出版社, 2004,8: 85~108
4祝燮权.实用紧固件手册.上海科学技术出版社, 2005,1: 17.2~17.14
5侯兆欣,吕健,王宇红.自攻螺钉连接在建筑上的应用.工业建筑. 1999, 29(9): 50~52
6黄川.冷弯薄壁C型钢梁柱半刚性节点实验及有限元分析.重庆大学硕士研究生论文. 2003: 1~21
7张跃峰.低层居住建筑中的轻钢龙骨结构体系.钢结构, 2001 , 16(2) : 1~4
8 Tan. S. H., Seah, K. and, Fok, S. C., Connections in Cold-Formed Thin-Walled Structure, Computer&Structure. 1991, 60(1): 169-172
9 D.A.Nethercot, Utilisation of Experimentally Obtained Connection Data in Assessting the Performance of Steel Frames, Proceedings, ASCE, Edited by W.F.Chen. 1985: 13~39
10 GB500018-2002冷弯薄壁型钢结构技术规范.中华人民共和国国家标准,中国计划出版社, 2002: 31~42
11 GAO Xuangneng, ZOU Yinsheng, ZHOU Xuhong. Buckling Analysis under Combined Loading of Thin-walled Plate Assembiles Using Bubble Functions. ACTA MECHANICA SOLIDA SINICA, 2002,13(2)
12 ALI M A, SRIDHARAN S A. Versatile Model For Interactive Buckling of Columns and Beam-columns. International Journal of Solids and Structures, 1988, 24(5): 296~305
13 R. Delesques, Le Calcue, Des Poutres Ajourees, Construction Metallique, 1969(4)
14 N. S. Trahair, M. Bradford. The Behaviour and Design of Steel Structures. London: Chapman and Hall, 1991
15 F. Bleich. Buckling Strength of Metal Structures. Mc-Graw-Hill, 1995, 10(9): 233~238
16 EN 1993-1-2 Eurocode3: Design of Steel Structure. October 2001: 69~71
17 BS 5950-1:2000 Structural Use of Steelwork in Building-Part 1: Code of Practice for Design—Rolled and Welded Sections. BSI. 01 February 2005: 129~150
18 BS 5950-Part6:1995 Structural Use of Steelwork in Building-Part 6. Code of Practice for Design of Light Gauge Profiled Steel Sheeting. BSI. 01 February 2005: 41~43
19 BS 5950-5:1998 Structural Use of Steelwork in Building-Part 5. Code of Practice for Design of Cold Formed Thin Gauge Sections. BSI. 01 February 2005: 35~43
20 AISC-LRFD93 Load and Resistance Factor Design Specification for Structu-ral Steel Buildings. American Institute of Steel Construction, Inc. 2001: 49~70
21 Standards Association of Australia, Sydney, Australia.Australian Standard Steel Structures AS4100, 1900
22 Standards Association of Australia, Sydney, Australia.Cold-formed Steel Structures AS4600, 1900
23欧洲钢结构建议.北京钢铁设计研究总院译. E.C.C.S. 1978
24 American Iron and Steel Institute 2003:“Commentary on the Prescriptive Method for One and Two Family Dwellings– 2003,”1140 Connecticut Avenue, NW Suite 705 Washington, DC 20036-4011. December 31, 2003: 5~7
25 American Iron and Steel Institute:“North American Specification for the Design of Cold-Formed Steel Structural Members,”CSA S136-01, American Iron and Steel Institute and Canadian Standards Association 2002, 1st Printing-June 2002: 118~121
26于炜文.冷成型钢结构设计.董军,夏冰青译.第一版.中国水利水电出版社,知识产权出版社, 2003: 403~407
27 Pekoz, T.:“Design of Cold-Formed Steel Screw Connections,”Proceedings of the 10th International Specialty Conference on Cold-Formed Steel Structures, University of Missouri-Rolla, Oct. 1990
28 European Reconmmendations for Connetions in Thin-walled Structural Steel Elemets. E.C.C.S Commitree Tct Working Groop TWG7.2, October, 1981
29朱景仕. V—125型压型钢板受力蒙皮性能研究.哈尔滨建筑大学硕士研究生论文. 1990: 1~10
30潘景龙.自攻螺钉连接的抗剪性能研究.哈尔滨工业大学学报. 1995, 28(6): 41~47
31李忠献.工程结构试验理论与技术.天津大学出版社, 2004
32姚启均.金属机械性能试验常用数据公式.中国工业出版社, 1962, 8
33 GB500017-2003钢结构设计规范.中华人民共和国国家标准.中国计划出版社, 2003
34 GB500009-2001建筑结构荷载规范.中华人民共和国国家标准.中国建筑工业出版社, 2002: 31~4
35 B. O.古兹马诺瓦奇, N.威廉斯.钢结构设计原理.庄海涛,邵容光,严善宽译.第一版.人民交通出版社, 1985: 83~87
36张贵祥,石永久,王元清.铝合金构件普通螺栓抗剪连接设计方法.河北建筑科技学院学报. 2006,12: 20~22
37 HYEONG J, KIM, JOSEPH A, YURA. Theeffect of Ultimate-to-yield Ratio on the Bearing Strength of Bolted Connections. Journal of Constructional Steel Research, 1999, (49): 255~262
38 D. Matteesco, G. Mercea, Uo Nouveau Type De Poueres Ajourees, Conctruc-tion Metallipue. 1983, (3): 3~14
39戴振藩.美国高强度螺栓连接的现状.世界桥梁, 1979, (02): 55~73
40 J. W. Fisher, Guide to Design Criteria for Bloted and Riveted Joints, 1974
41 RomaldN. Allen and Johu W. Fisher. Bolt Joints With Oversize; or Slotted Holes. ASCE Journal, Vol, 94, St, 9, September. 1968
42李德滋.国外规范关于铆钉、普通螺栓、高强螺栓的分析和我们的建议.冶金建筑. 1983
43董天纯.剪-压式高强螺栓连接.工业建筑. 1983, (3): 36~43
44张玉田,李德滋.国外剪-压型高强螺栓连接的应用和研究(上).冶金建筑.1982, (10): 15~20
45张玉田,李德滋.国外剪-压型高强螺栓连接的应用和研究(下).冶金建筑. 1982, (11): 51~52