对称荷载下薄钢—组合结构梁柱节点静力性能试验研究
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摘要
薄钢混凝土组合结构是一种由薄壁板材,冷弯薄壁型钢与混凝土组合而成的新型结构。节点是这个体系中的关键部位,由于钢板很薄,薄钢—混凝土组合结构节点相对于钢结构节点或是钢管混凝土结构节点更难处理,因此找到一种构造简单,受力合理的节点形式十分必要。
本文提出了5种节点形式共十个试件分别为:其具有梁端处开孔的钢套筒节点(JD-A),梁、柱钢板在节点处断开,通过钢套筒连接,钢套筒既当作模板又参与受力;节点域为普通钢筋混凝土的节点(JD-B),其与JD-A相同,只是没有外面的钢套筒;普通钢筋混凝土梁节点(JD-C),梁为普通钢筋混凝土;梁贯通型节点(JD-D);内加强环型节点(JD-E)。
本文通过10个节点试件的静力加载试验,主要研究节点在对称荷载作用下的静力性能,其中JD-A、JD-B、JD-D以两种跨度加载,以考虑不同剪跨比对节点受力性能的影响。
通过对节点处梁、柱相对转角,节点竖向位移以及试验现象的分析,得出了各节点破坏模式和受力性能,以及不同连接方式和不同跨度对节点承载能力、刚性、以及延性的影响,并提出了改进意见。最后对节点承载力实用计算方法进行了探索性研究,给出了节点承载力简化计算公式。
Thin-walled steel-concrete composite structure (TWSCS)is a new type structure which is composed of thin-walled steel plates、cold-formed thin-walled steel elements with concrete. The joints are the important parts in thin-walled steel–concrete composite structure system. It is more difficult of TWSCS then the steel structure or steel tube confined concrete structure ( STCC) to deal with the problem of the joints because the thickness of the steel plate of the columns is so much thinner that cannot be able to bear the tensile forces which come from the beams. So it is vitally important to find out a new type joint which is simply in construction details and reasonable in mechanic behavior.
The paper presents five new types joints of thin-walled steel-concrete composite structure. JD-A, the columns and beams are connected by a steel tube with holes in the end of beams which can be used for the permanent formwork and to act as the partially or mainly longitudinal reinforcement; JD-B, it is the same as JD-A except without the steel tube; JD-C ,the beam and joints are made of reinforced concrete; JD-D ,the steel beam runs through the column; JD-E is of intend stiffness ring joint. 10 specimens of joints were tested under the symmetric loading, The joints JD-A、JD-B、JD-D were tested under two different shear span length in order to consider of the static behavior in different loading conditions.
According to the test results, the static behavior including the failure model、ultimate bearing capability rigiding and ductility, for all different joints was obtained. At last, a practical calculation method for the ultimate bearing capability of the joints and some reasonable suggestions for design were also proposed.
本文提出了5种节点形式共十个试件分别为:其具有梁端处开孔的钢套筒节点(JD-A),梁、柱钢板在节点处断开,通过钢套筒连接,钢套筒既当作模板又参与受力;节点域为普通钢筋混凝土的节点(JD-B),其与JD-A相同,只是没有外面的钢套筒;普通钢筋混凝土梁节点(JD-C),梁为普通钢筋混凝土;梁贯通型节点(JD-D);内加强环型节点(JD-E)。
本文通过10个节点试件的静力加载试验,主要研究节点在对称荷载作用下的静力性能,其中JD-A、JD-B、JD-D以两种跨度加载,以考虑不同剪跨比对节点受力性能的影响。
通过对节点处梁、柱相对转角,节点竖向位移以及试验现象的分析,得出了各节点破坏模式和受力性能,以及不同连接方式和不同跨度对节点承载能力、刚性、以及延性的影响,并提出了改进意见。最后对节点承载力实用计算方法进行了探索性研究,给出了节点承载力简化计算公式。
Thin-walled steel-concrete composite structure (TWSCS)is a new type structure which is composed of thin-walled steel plates、cold-formed thin-walled steel elements with concrete. The joints are the important parts in thin-walled steel–concrete composite structure system. It is more difficult of TWSCS then the steel structure or steel tube confined concrete structure ( STCC) to deal with the problem of the joints because the thickness of the steel plate of the columns is so much thinner that cannot be able to bear the tensile forces which come from the beams. So it is vitally important to find out a new type joint which is simply in construction details and reasonable in mechanic behavior.
The paper presents five new types joints of thin-walled steel-concrete composite structure. JD-A, the columns and beams are connected by a steel tube with holes in the end of beams which can be used for the permanent formwork and to act as the partially or mainly longitudinal reinforcement; JD-B, it is the same as JD-A except without the steel tube; JD-C ,the beam and joints are made of reinforced concrete; JD-D ,the steel beam runs through the column; JD-E is of intend stiffness ring joint. 10 specimens of joints were tested under the symmetric loading, The joints JD-A、JD-B、JD-D were tested under two different shear span length in order to consider of the static behavior in different loading conditions.
According to the test results, the static behavior including the failure model、ultimate bearing capability rigiding and ductility, for all different joints was obtained. At last, a practical calculation method for the ultimate bearing capability of the joints and some reasonable suggestions for design were also proposed.
引文
1 张耀春等.轻钢-混凝土组合梁的试验研究及非线性有限元分析.建筑结构学报.2003,24(1):26-33
2 聂建国等.冷弯薄壁-混凝土组合梁的试验研究及应用.建筑结构.1998,(1):54-57
3 周天华,何保康.帽形冷弯薄壁型钢—混凝土组合梁的试验研究.建筑结构.2003,3(1):48-50
4 姜绍飞、刘之洋,外包钢砼组合梁的变形计算. 东北大学学报.1998,19(3):316-318
5 L.F.Boswell, The ultimate load anaysis of thin-walled concrete boxbeams, Thin-Walled Structures, 1998, 30(4):181-198
6 M.A.Bradford, H.D.Wright, Time-dependent local buckling in thin- walled light weight composites,J.Construct.Steel, 1998, 31(3):221–232
7 K.M.A.Hossain, Behaviour of thin walled composite beams and columns,Communicated to magazine of Concrete Rearch, London, UK, 4(1999): 321–329
8 Oehlers.D.J, Composite profiled beams, Journal of structrural engineering, ASCE,1993,119(4):1085–1099
9 Uy.B and Bradford.M.A, Local buckling behaviour of through girders composed of an anssemblage of profiled steel sheets, Thin-walled structures, 22(1995):97–122
10 Nakamura.S,Bending behaviour of composite girders with coldformed steel U Section, Journal of structrural engineering,ASCE,2002,128(9):1169–1176
11 R.Suresh, S.K.Malhotra, Some studies on buckling of laminated composite thin walled box beams,Composite Structure, 1998, 40(4):267–275
12 曹宝珠,薄壁钢-混凝土组合构件静力性能研究[M]. 哈尔滨工业大学:博士论文,2004:1-136
13 陈勇,新型薄壁钢管混凝土柱静力性能研究[M]. 哈尔滨工业大学:博士论文,2006:1-167
14 Wright.H.D, Buckling of plates incontact with rigid medium, The Structural Engineering,1993,71(12):209–215
15 Ichinose.L.H, Watanahe.E and Nakai.H, An experimental study on creep of concrete filled steel pipes, Journal of constructional steel reseach, 57(2001): 453–466
16 B.Uy,S.Das, Brancing of thin walled steel box columns during pumping of wet concrete in tall buildings,Thin-Walled Structures,33(1999):127–154
17 Hsu.H-L and Yu.H-L,Seismic performance of concrete-filled tubes with restrained plastic hinge zones, Journal of constructional steel reseach, 59(2003):587-608
18 Shanmugam.N.E, Lakshmi.B and Uy.B, An analyfical model for thin-walled steel box columns with concrete in-fill, Engineering Structures, 2002, (24): 825–838
19 Susantha.K.A.S,Ge.H and Usami.T,A capacity prediction procedure for concrete-fiiled sreel columns, Journal of Earthquake Engineering, 2001, 5(4): 483-520
20 Martin D.O’shea, et al., Design of circular thin-walled concrete filled steel tubes,Journal of Structural Engineering, 2000,126(11):1295–1303
21 O’shea.M.D and Bridge.R.Q, Design of circular thin-walled concrete filled steel tubes,Journal of Structural Engineering,2000,126(11):1295–1303
22 Usami.T and Ge.H.B,Cyclic behavior of thin-walled steel structuresnumerical analysis, Thin-walled structures,32(1998):41–80
23 Shanmugam.N.E, Richard.L.J.Y and Lee.S.L, Thin-walled steel box columns under biaxial loading, Journal of structrural engineering, ASCE, 1989, 115(11):2706–2727
24 Mursi.M and Uy.B, Strength of concrete-filled steel box columns incorporating Interaction buckling, Journal of structural engineering,2003, 129(5):626–639
25 Bradford.M.A,Loh.H.Y and Uy.B,Slenderness limits for filled circular steel tubes,Journal of constructional steel reseach,58(2002):243–252
26 H.L.Hsu, J.L.Juang, Performance of thin-walled box columns strengthened with internal braces,Thin-Walled Structures, 37(2000):241–258
27 Uy.B, Strength of concrete filled steel box columns incorporating local buckling Journal of structrural engineering,ASCE, 2000,126(3):341–352
28 余红军.新型薄壁钢-混凝土组合结构节点试验研究.哈尔滨工业大学硕士学位论文.2004
29 李风.低周循环荷载作用下冷弯型钢与混凝土组合结构节点抗震性能研究.西安建筑科技大学博士学位论文.2002
30 胡习兵,舒兴平,沈蒲生.半刚性连接钢框架的简化计算方法. 湖南大学学报. 2005,32(4):18-23
31 苏恒强,蔡 健.钢管混凝土加强环式节点的试验研究.华南理工大学学报. 2004,32(1):80-84
32 张莉若,王明贵.钢-混凝土组合结构梁柱节点承载力实验研究. 建筑科学.2003,10:16-18
33 何天森,李国强.钢结构建筑组合节点的分析模型.钢-混凝土组合结构.2003(4):25-28
34 林于东,林 杰,宗周红.低周反复荷载作用下矩形钢管混凝土柱与钢梁连接节点的受力性能. 地 震 工 程 与 工 程 振 动. 2004,24(4):62-69
35 林瑶明,蔡健.新型钢管混凝土柱—梁节点轴压试验研究. 广东土木与建筑.2002,(11)
36 管品武等 .钢管混凝土柱新型节点受力性能试验研究 . 世界地震工程.2001,(12)
37 向黎明,吕西林.新型钢管混凝土柱—梁节点抗震性能研究. 结构工程师.2001,(3):20-24
38 孙飞飞,李国强.梁柱组合节点的实验研究新进展. 建筑钢结构发展. 2004,6(2):37-42
39 Elremaily.A and Azizinamini.A,Design provisions for connections between steel beams and concrete-filled tubes, Journal of constructional steel reseach, 57(2001):971–995
40 Beutel.J,Thambiratnam.D and Perera.N,Momotonic behaviour of composite columns to beam connections, Engineering Structures,23(2001):1152–1161
41 Beutel.J,Thambiratnam.D and Perera.N,Cyclic behaviour of concrete-filled steel tuular column to steel beam connections, Engineering Structures, 24(2002):29–38
42 Azizinamini.A,Shekar.Y and Saadeghvaziri.M.A,Design of through beam connection detail for circular composite columns, Engineering Structures, 1995,17(3):209–213
43 Alostaz.M.Y and Schneider.P.S,Analytical behavior of connections toconcrete-filled steel tubes, Journal of constructional steel reseach,40(1996): 95–127
44 高 立 人 . 钢 梁 - 混 凝 土 柱 组 合 框 架 结 构 在 国 外 的 发 展 . 建 筑 结构.2002,5:34~37
45 李 成 玉 , 郭 耀 杰 . 钢 框 架 节 点 刚 性 的 力 学 特 性 . 武 汉 大 学 学 报 . 2005,38(1):129-132
46 Hasan Rvafiq,Kishi Norimitsu,Chen Waifah.A New Nonlinear Connection Classification System. Journal of Constructional Steel Research. 47 (1998):119~140
47 郑德胜 , 胡夏闽 . 钢 - 混凝土组合节点的分类探讨 . 工业建筑 . 2005, 35(11):31-34
2 聂建国等.冷弯薄壁-混凝土组合梁的试验研究及应用.建筑结构.1998,(1):54-57
3 周天华,何保康.帽形冷弯薄壁型钢—混凝土组合梁的试验研究.建筑结构.2003,3(1):48-50
4 姜绍飞、刘之洋,外包钢砼组合梁的变形计算. 东北大学学报.1998,19(3):316-318
5 L.F.Boswell, The ultimate load anaysis of thin-walled concrete boxbeams, Thin-Walled Structures, 1998, 30(4):181-198
6 M.A.Bradford, H.D.Wright, Time-dependent local buckling in thin- walled light weight composites,J.Construct.Steel, 1998, 31(3):221–232
7 K.M.A.Hossain, Behaviour of thin walled composite beams and columns,Communicated to magazine of Concrete Rearch, London, UK, 4(1999): 321–329
8 Oehlers.D.J, Composite profiled beams, Journal of structrural engineering, ASCE,1993,119(4):1085–1099
9 Uy.B and Bradford.M.A, Local buckling behaviour of through girders composed of an anssemblage of profiled steel sheets, Thin-walled structures, 22(1995):97–122
10 Nakamura.S,Bending behaviour of composite girders with coldformed steel U Section, Journal of structrural engineering,ASCE,2002,128(9):1169–1176
11 R.Suresh, S.K.Malhotra, Some studies on buckling of laminated composite thin walled box beams,Composite Structure, 1998, 40(4):267–275
12 曹宝珠,薄壁钢-混凝土组合构件静力性能研究[M]. 哈尔滨工业大学:博士论文,2004:1-136
13 陈勇,新型薄壁钢管混凝土柱静力性能研究[M]. 哈尔滨工业大学:博士论文,2006:1-167
14 Wright.H.D, Buckling of plates incontact with rigid medium, The Structural Engineering,1993,71(12):209–215
15 Ichinose.L.H, Watanahe.E and Nakai.H, An experimental study on creep of concrete filled steel pipes, Journal of constructional steel reseach, 57(2001): 453–466
16 B.Uy,S.Das, Brancing of thin walled steel box columns during pumping of wet concrete in tall buildings,Thin-Walled Structures,33(1999):127–154
17 Hsu.H-L and Yu.H-L,Seismic performance of concrete-filled tubes with restrained plastic hinge zones, Journal of constructional steel reseach, 59(2003):587-608
18 Shanmugam.N.E, Lakshmi.B and Uy.B, An analyfical model for thin-walled steel box columns with concrete in-fill, Engineering Structures, 2002, (24): 825–838
19 Susantha.K.A.S,Ge.H and Usami.T,A capacity prediction procedure for concrete-fiiled sreel columns, Journal of Earthquake Engineering, 2001, 5(4): 483-520
20 Martin D.O’shea, et al., Design of circular thin-walled concrete filled steel tubes,Journal of Structural Engineering, 2000,126(11):1295–1303
21 O’shea.M.D and Bridge.R.Q, Design of circular thin-walled concrete filled steel tubes,Journal of Structural Engineering,2000,126(11):1295–1303
22 Usami.T and Ge.H.B,Cyclic behavior of thin-walled steel structuresnumerical analysis, Thin-walled structures,32(1998):41–80
23 Shanmugam.N.E, Richard.L.J.Y and Lee.S.L, Thin-walled steel box columns under biaxial loading, Journal of structrural engineering, ASCE, 1989, 115(11):2706–2727
24 Mursi.M and Uy.B, Strength of concrete-filled steel box columns incorporating Interaction buckling, Journal of structural engineering,2003, 129(5):626–639
25 Bradford.M.A,Loh.H.Y and Uy.B,Slenderness limits for filled circular steel tubes,Journal of constructional steel reseach,58(2002):243–252
26 H.L.Hsu, J.L.Juang, Performance of thin-walled box columns strengthened with internal braces,Thin-Walled Structures, 37(2000):241–258
27 Uy.B, Strength of concrete filled steel box columns incorporating local buckling Journal of structrural engineering,ASCE, 2000,126(3):341–352
28 余红军.新型薄壁钢-混凝土组合结构节点试验研究.哈尔滨工业大学硕士学位论文.2004
29 李风.低周循环荷载作用下冷弯型钢与混凝土组合结构节点抗震性能研究.西安建筑科技大学博士学位论文.2002
30 胡习兵,舒兴平,沈蒲生.半刚性连接钢框架的简化计算方法. 湖南大学学报. 2005,32(4):18-23
31 苏恒强,蔡 健.钢管混凝土加强环式节点的试验研究.华南理工大学学报. 2004,32(1):80-84
32 张莉若,王明贵.钢-混凝土组合结构梁柱节点承载力实验研究. 建筑科学.2003,10:16-18
33 何天森,李国强.钢结构建筑组合节点的分析模型.钢-混凝土组合结构.2003(4):25-28
34 林于东,林 杰,宗周红.低周反复荷载作用下矩形钢管混凝土柱与钢梁连接节点的受力性能. 地 震 工 程 与 工 程 振 动. 2004,24(4):62-69
35 林瑶明,蔡健.新型钢管混凝土柱—梁节点轴压试验研究. 广东土木与建筑.2002,(11)
36 管品武等 .钢管混凝土柱新型节点受力性能试验研究 . 世界地震工程.2001,(12)
37 向黎明,吕西林.新型钢管混凝土柱—梁节点抗震性能研究. 结构工程师.2001,(3):20-24
38 孙飞飞,李国强.梁柱组合节点的实验研究新进展. 建筑钢结构发展. 2004,6(2):37-42
39 Elremaily.A and Azizinamini.A,Design provisions for connections between steel beams and concrete-filled tubes, Journal of constructional steel reseach, 57(2001):971–995
40 Beutel.J,Thambiratnam.D and Perera.N,Momotonic behaviour of composite columns to beam connections, Engineering Structures,23(2001):1152–1161
41 Beutel.J,Thambiratnam.D and Perera.N,Cyclic behaviour of concrete-filled steel tuular column to steel beam connections, Engineering Structures, 24(2002):29–38
42 Azizinamini.A,Shekar.Y and Saadeghvaziri.M.A,Design of through beam connection detail for circular composite columns, Engineering Structures, 1995,17(3):209–213
43 Alostaz.M.Y and Schneider.P.S,Analytical behavior of connections toconcrete-filled steel tubes, Journal of constructional steel reseach,40(1996): 95–127
44 高 立 人 . 钢 梁 - 混 凝 土 柱 组 合 框 架 结 构 在 国 外 的 发 展 . 建 筑 结构.2002,5:34~37
45 李 成 玉 , 郭 耀 杰 . 钢 框 架 节 点 刚 性 的 力 学 特 性 . 武 汉 大 学 学 报 . 2005,38(1):129-132
46 Hasan Rvafiq,Kishi Norimitsu,Chen Waifah.A New Nonlinear Connection Classification System. Journal of Constructional Steel Research. 47 (1998):119~140
47 郑德胜 , 胡夏闽 . 钢 - 混凝土组合节点的分类探讨 . 工业建筑 . 2005, 35(11):31-34