钢管混凝土柱—工字钢梁半刚性节点有限元分析
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摘要
方钢管混凝土钢框架结构由于具有综合经济效益好、强度高、延性好、抗震性能优越、施工周期短等优点,其应用越来越广泛。但我国对方钢管混凝土柱-工字钢梁节点的理论和试验研究较少,因此开展方钢管混凝土柱-工字钢梁节点的受力性能研究,对于促进方钢管混凝土柱框架的推广应用具有重要的理论意义与工程应用价值。由于节点形式的多样性和受力的复杂性,国内外对方钢管混凝土柱一工字钢梁连接节点方面的研究尚处于起步阶段,很不完善,尤其是对半刚性节点受力性能的研究。
本文通过低周反复试验深入研究方钢管混凝土柱与钢梁相接节点的受力性能。而后对方钢管混凝土柱-工字钢梁节点试件的实际尺寸进行三维实体建模,运用有限元软件ANSYS进行非线性分析,有限元分析得出的结果与试验结果较为吻合。本文采用分离式模型,应用不同单元类型模拟混凝土、钢梁、钢管、螺栓,考虑螺栓与钢材之间的粘结滑移性能,对于钢管内的混凝土和钢管壁受荷下的粘结关系采用完全粘结的假定。结果表明,有限元计算误差比较小,模型合理。在此基础上,利用模型对节点的不同影响因子做了定性的分析。结果表明,钢管壁厚度、梁高度、翼缘厚度、腹板厚度、角钢厚度的增大对节点承载力提高是有利的,其中梁高度影响最大,钢管壁厚对节点承载力几乎没有多大影响。
最后,对本文写作过程中遇到的问题进行了总结,提出方钢管混凝土共同工作性能研究中有待于进一步深入的问题,并对方钢管混凝土结构的广阔应用前景进行了展望。
The concrete filled square steel tube (CFSST) column steel frame structures are more and more widely used for the advantages such as more economical, higher strength, better rigidity and seismic performance, short construction period and so on. But there are little theory and test research of the connections between the concrete filled square steel tube columns and H shape steel beams in our county,so it has important theory and application value to research the connections between the CFSST columns and H shape steel beams for the development and application of the CFSST column frames .All over the world,the experirnental study on seismic performance of CFSST columns and H shape steel beams connections, especially semi-rgid connections,is elementary for their different forms and complicated seismic performance.
To research The Capacity behavior of CFSST columns and H shape steel beams connections,four different Specimens are designed and tested under the low cycle reverse loads. The 3D solid finite element models are built by the dimension of the CFSST specimens, and the nonlinear finite element analysis is done using software ANSYS. The results of finite element analysis coincide to the results of the experiments. According to the character of CFSST ioints,spread-finite element model is adopted.Different element types are used in the models and bond-slip behavior is taken into account between the steel bolt and steel.all components on the core of CFST ioint.We assumed that Concrete and steel tube are fully bonded. A good correlation between the finite element models and the experimental results is obtained.An analysis is developed for influence factors that have some influence on the CFSST ioints’behavior.The results show that the thickness of steel tube, the height of beam , the thickness of flange ,the thickness of web , the thickness of angle have a good andvisible effect on the capacity of joints;the height of beam has large influence , the thickness of steel tube has little influence.
At last, several problems which are arising while the paper is writing have been summarized. And the author put forward some problems of the study on the cooperation status in-between steel tube and in-core concrete in CFSST structures to be researched more deeply and makes an expectation of the wider applied foreground of CFSST structures.
本文通过低周反复试验深入研究方钢管混凝土柱与钢梁相接节点的受力性能。而后对方钢管混凝土柱-工字钢梁节点试件的实际尺寸进行三维实体建模,运用有限元软件ANSYS进行非线性分析,有限元分析得出的结果与试验结果较为吻合。本文采用分离式模型,应用不同单元类型模拟混凝土、钢梁、钢管、螺栓,考虑螺栓与钢材之间的粘结滑移性能,对于钢管内的混凝土和钢管壁受荷下的粘结关系采用完全粘结的假定。结果表明,有限元计算误差比较小,模型合理。在此基础上,利用模型对节点的不同影响因子做了定性的分析。结果表明,钢管壁厚度、梁高度、翼缘厚度、腹板厚度、角钢厚度的增大对节点承载力提高是有利的,其中梁高度影响最大,钢管壁厚对节点承载力几乎没有多大影响。
最后,对本文写作过程中遇到的问题进行了总结,提出方钢管混凝土共同工作性能研究中有待于进一步深入的问题,并对方钢管混凝土结构的广阔应用前景进行了展望。
The concrete filled square steel tube (CFSST) column steel frame structures are more and more widely used for the advantages such as more economical, higher strength, better rigidity and seismic performance, short construction period and so on. But there are little theory and test research of the connections between the concrete filled square steel tube columns and H shape steel beams in our county,so it has important theory and application value to research the connections between the CFSST columns and H shape steel beams for the development and application of the CFSST column frames .All over the world,the experirnental study on seismic performance of CFSST columns and H shape steel beams connections, especially semi-rgid connections,is elementary for their different forms and complicated seismic performance.
To research The Capacity behavior of CFSST columns and H shape steel beams connections,four different Specimens are designed and tested under the low cycle reverse loads. The 3D solid finite element models are built by the dimension of the CFSST specimens, and the nonlinear finite element analysis is done using software ANSYS. The results of finite element analysis coincide to the results of the experiments. According to the character of CFSST ioints,spread-finite element model is adopted.Different element types are used in the models and bond-slip behavior is taken into account between the steel bolt and steel.all components on the core of CFST ioint.We assumed that Concrete and steel tube are fully bonded. A good correlation between the finite element models and the experimental results is obtained.An analysis is developed for influence factors that have some influence on the CFSST ioints’behavior.The results show that the thickness of steel tube, the height of beam , the thickness of flange ,the thickness of web , the thickness of angle have a good andvisible effect on the capacity of joints;the height of beam has large influence , the thickness of steel tube has little influence.
At last, several problems which are arising while the paper is writing have been summarized. And the author put forward some problems of the study on the cooperation status in-between steel tube and in-core concrete in CFSST structures to be researched more deeply and makes an expectation of the wider applied foreground of CFSST structures.
引文
[1]钟善桐.高层钢管棍凝土结构「M」.哈尔滨:黑龙江科学出版社,1999
[2]钟善桐.钢管混凝土构件的节点构造(一)[Jl.建筑结构,1999,5(5):54~60
[3]蔡绍怀.钢管混凝土结构的计算与应用.北京:中国建筑工业出版社1989
[4]蔡绍怀.钢管混凝土结构.北京:中国建筑科学研究院,1992
[5] CDIECF monograph No l,Concrete-filled Hollow Section Steel Columns-desing manual,1970.
[6] P K Neogi,H K Shen and J C Chaman,Concrete-filled Tubular Steel Columns-uniaxial Behavior under Eccentric Loading,CIRA Technical Note 1969,Jan,3.
[7] E Dunberry,D Leblanc and R G Redwood,Cross-section strength of Concrete-fllled HSS Columns at simple Beam Connections[J],Can J Civ Eng14,1987,408~417.
[8] P Ansourian,Rgid-frame Connections to Concrete-filled Tubular Steel Columns,CRFIMT86,Jan,1974.
[9] G W Owens,and C B Echeta A Semi-rigid Design Method for Composite Frames,Joints in Structural Steelwork-Proc of the International Conferenceb held at Teessid Polytechnical Middlesbrough,Cleveland 6-9 April 1981.
[10] C Matsui,etal;AIJ Design Method for Concrete Filled Stee1 Tubular Structures,ASCCS Seminar,Innsbruck,18th,September1997.
[11] Sasaki Satoshi,Teraoka Masaru,Morita Koji etal Structural Behavior of Concrete Filled Square Thbular Column with Partial Penetration Weld Corner Seam to Steel H-beam Connection,Proceedings of the 4th Pacific Structural Steel Conference,1995,14(2):33~40.
[12]蔡绍怀.钢与混凝土组合结构设计施工手册(周起敬、姜维山、潘泰华主编)第5章.北京:中国建筑工业出版社,1993
[13]韩林海.钢管混凝土结构一理论与实践.北京:科学出版社,2004
[14]钟善桐.高层建筑中采用CFST结构的优越性.第七届全国结构工程学术会议论文(特邀报告).石家庄:1998
[15]杨华.恒高温作用后钢管混凝土轴压力学性能研究D[1.哈尔滨:哈尔工业大学,2000
[16]蔡益燕、钟善桐.我国高层建筑结构钢结构发展方向初探.北京:企业管理出版社,1998
[17]蔡绍怀.我国钢管混凝土结构技术的最新进展[M].土木工程学报,1999(4).
[18]今晚报大厦钢管混凝土柱板结构体系鉴定材料.天津第六建筑工程公司,1995.9.25.
[19]李至钧,阎善章,钢管混凝土框架梁柱刚性抗震节点的试验研究[J],工业建筑,1994(2):8-15。
[20]吴家平等,钢管混凝土多层框架结构梁柱刚性节点的研究[J],哈尔滨建程学院学报,1986(4):l一4。
[21]闰胜魁等,钢管混凝土柱与钢筋混凝土梁、板节点空间受力试验究[J],北建筑工程学院学报,1999,3(l),21~25。
[22]龚昌基,钢管混凝上柱承重梢式节点设计计算与试验[J],哈尔滨建筑大学学报,1995,10(5)。
[23]顾伯禄等,新型钢管混凝土框架节点试验研究及其应用[J],东南大学学报,1998。
[24]赵大伟等.低周往复荷载下梁柱节点的实验研究”.建筑结构,2000.9.
[25]马宏伟,组合梁与连续复合螺旋箍混凝土柱节点研究[D],西安,西安建筑科技大学博士学位论文,2003,1。
[26]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003.
[27]韩林海.钢管混凝土结构[M].北京:科学出版社,2000.
[28]王仁,黄文彬,黄筑平.塑性力学引论[M].北京:北京大学出版社,2003.
[29] XilinLu,YongYu etal Experimental study on the seismic behavior in the Connection between CFRT column and steel beam Structural Engineering and mechanics 9(4),April 2000,365~374.
[30] Koji Monta,Masura Teraoka and Takahiko Suzuki,Experimental Study on Connections between Concrete Filled Square Tubular High Strength (780MPa)Steel Column andH-beam [M],Proceedings of 3rd Pacific Structural Steel Conference,Oct,1992,591~598。
[31] Masaur Teraoka,Koji Morita,Experimental Study on structural Behavior of Concrete Filled Square Tubular Column to Steel Beam Connections without Diaphragm[M],Proceedings of 4th ASCCS International Conference1994,190~193.
[32] Koji Morita,GongyiFu,Masaur Teraoka and YukioYokoyama,Experimental Study on Connections with Eccentricitybetween Concrete Filled Square Tubular Column and Steel Beam[M],Proceedings of the 4th Pacific Structural Steel Conference,1995,14(2):26~32.
[33]周天华,方钢管混凝土柱-钢梁框架节点抗震性能及承载力研究[D],西安建筑科技大学博士学位论文,2004。
[34]宗周红,林于东,林杰,矩形钢管混凝上柱与钢梁半刚性节点的抗震性能试验研究[J],建筑结构学报,2004,12。
[35]张素梅,张大旭,钢管混凝土柱与梁节点荷载-位移滞回曲线理论分析[J],哈尔滨建筑大学学报,2001(8)。
[36]李风,低周循环荷载下冷弯型钢与混凝土组合结构节点抗震性能研究[D],西安,西安建筑科技大学博士学位论文,2002,6。
[37]张大旭,钢管混凝土梁柱节点动力性能试验研究[D],哈尔滨建筑大学硕士论文,2000。
[38]刘西拉,有关混凝土本构关系的反思[C],第三节混凝土结构基本理论及工程应用论文集,湖南科学技术出版社,1993。
[39]殷有泉,固体力学非线性有限元引论「M],北京,北京大学出版社,1986,12。
[40]梅力彪,周云,阴毅,穿心暗牛腿钢管混凝土柱单梁节点空间非线性有线元分析[J],工业建筑,2004,34(9)。
[41]汤文峰,王毅红,史耀华,新型钢管混凝土节点的非线性有线元分析[J],长安大学学报(自然科学版),2004,9,24(5)。
[42]唐眠,蔡健,新型钢管混凝土柱-平板节点的非线性有线元分析[J],华南理工大学学报(自然科学版),2003,6,31(6)。
[43]刘建平,郭彦林,K型方、圆管相贯节点的极限承载力非线性有限元分析[J],建筑科学,2001,17(2):50一53。
[44]刘建平,郭彦林,刘国栋,圆管相贯节点极限承载力有限元分析[J],建筑结构,2002,32(7):56~59。
[45] ANSYS非线性分析指南一接触分析,ANSYS中国,2001,1.
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[49]陈精一,蔡国忠,电脑辅助工程分析ANSYS使用指南[M],中国铁道出版社,2001,3。
[2]钟善桐.钢管混凝土构件的节点构造(一)[Jl.建筑结构,1999,5(5):54~60
[3]蔡绍怀.钢管混凝土结构的计算与应用.北京:中国建筑工业出版社1989
[4]蔡绍怀.钢管混凝土结构.北京:中国建筑科学研究院,1992
[5] CDIECF monograph No l,Concrete-filled Hollow Section Steel Columns-desing manual,1970.
[6] P K Neogi,H K Shen and J C Chaman,Concrete-filled Tubular Steel Columns-uniaxial Behavior under Eccentric Loading,CIRA Technical Note 1969,Jan,3.
[7] E Dunberry,D Leblanc and R G Redwood,Cross-section strength of Concrete-fllled HSS Columns at simple Beam Connections[J],Can J Civ Eng14,1987,408~417.
[8] P Ansourian,Rgid-frame Connections to Concrete-filled Tubular Steel Columns,CRFIMT86,Jan,1974.
[9] G W Owens,and C B Echeta A Semi-rigid Design Method for Composite Frames,Joints in Structural Steelwork-Proc of the International Conferenceb held at Teessid Polytechnical Middlesbrough,Cleveland 6-9 April 1981.
[10] C Matsui,etal;AIJ Design Method for Concrete Filled Stee1 Tubular Structures,ASCCS Seminar,Innsbruck,18th,September1997.
[11] Sasaki Satoshi,Teraoka Masaru,Morita Koji etal Structural Behavior of Concrete Filled Square Thbular Column with Partial Penetration Weld Corner Seam to Steel H-beam Connection,Proceedings of the 4th Pacific Structural Steel Conference,1995,14(2):33~40.
[12]蔡绍怀.钢与混凝土组合结构设计施工手册(周起敬、姜维山、潘泰华主编)第5章.北京:中国建筑工业出版社,1993
[13]韩林海.钢管混凝土结构一理论与实践.北京:科学出版社,2004
[14]钟善桐.高层建筑中采用CFST结构的优越性.第七届全国结构工程学术会议论文(特邀报告).石家庄:1998
[15]杨华.恒高温作用后钢管混凝土轴压力学性能研究D[1.哈尔滨:哈尔工业大学,2000
[16]蔡益燕、钟善桐.我国高层建筑结构钢结构发展方向初探.北京:企业管理出版社,1998
[17]蔡绍怀.我国钢管混凝土结构技术的最新进展[M].土木工程学报,1999(4).
[18]今晚报大厦钢管混凝土柱板结构体系鉴定材料.天津第六建筑工程公司,1995.9.25.
[19]李至钧,阎善章,钢管混凝土框架梁柱刚性抗震节点的试验研究[J],工业建筑,1994(2):8-15。
[20]吴家平等,钢管混凝土多层框架结构梁柱刚性节点的研究[J],哈尔滨建程学院学报,1986(4):l一4。
[21]闰胜魁等,钢管混凝土柱与钢筋混凝土梁、板节点空间受力试验究[J],北建筑工程学院学报,1999,3(l),21~25。
[22]龚昌基,钢管混凝上柱承重梢式节点设计计算与试验[J],哈尔滨建筑大学学报,1995,10(5)。
[23]顾伯禄等,新型钢管混凝土框架节点试验研究及其应用[J],东南大学学报,1998。
[24]赵大伟等.低周往复荷载下梁柱节点的实验研究”.建筑结构,2000.9.
[25]马宏伟,组合梁与连续复合螺旋箍混凝土柱节点研究[D],西安,西安建筑科技大学博士学位论文,2003,1。
[26]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003.
[27]韩林海.钢管混凝土结构[M].北京:科学出版社,2000.
[28]王仁,黄文彬,黄筑平.塑性力学引论[M].北京:北京大学出版社,2003.
[29] XilinLu,YongYu etal Experimental study on the seismic behavior in the Connection between CFRT column and steel beam Structural Engineering and mechanics 9(4),April 2000,365~374.
[30] Koji Monta,Masura Teraoka and Takahiko Suzuki,Experimental Study on Connections between Concrete Filled Square Tubular High Strength (780MPa)Steel Column andH-beam [M],Proceedings of 3rd Pacific Structural Steel Conference,Oct,1992,591~598。
[31] Masaur Teraoka,Koji Morita,Experimental Study on structural Behavior of Concrete Filled Square Tubular Column to Steel Beam Connections without Diaphragm[M],Proceedings of 4th ASCCS International Conference1994,190~193.
[32] Koji Morita,GongyiFu,Masaur Teraoka and YukioYokoyama,Experimental Study on Connections with Eccentricitybetween Concrete Filled Square Tubular Column and Steel Beam[M],Proceedings of the 4th Pacific Structural Steel Conference,1995,14(2):26~32.
[33]周天华,方钢管混凝土柱-钢梁框架节点抗震性能及承载力研究[D],西安建筑科技大学博士学位论文,2004。
[34]宗周红,林于东,林杰,矩形钢管混凝上柱与钢梁半刚性节点的抗震性能试验研究[J],建筑结构学报,2004,12。
[35]张素梅,张大旭,钢管混凝土柱与梁节点荷载-位移滞回曲线理论分析[J],哈尔滨建筑大学学报,2001(8)。
[36]李风,低周循环荷载下冷弯型钢与混凝土组合结构节点抗震性能研究[D],西安,西安建筑科技大学博士学位论文,2002,6。
[37]张大旭,钢管混凝土梁柱节点动力性能试验研究[D],哈尔滨建筑大学硕士论文,2000。
[38]刘西拉,有关混凝土本构关系的反思[C],第三节混凝土结构基本理论及工程应用论文集,湖南科学技术出版社,1993。
[39]殷有泉,固体力学非线性有限元引论「M],北京,北京大学出版社,1986,12。
[40]梅力彪,周云,阴毅,穿心暗牛腿钢管混凝土柱单梁节点空间非线性有线元分析[J],工业建筑,2004,34(9)。
[41]汤文峰,王毅红,史耀华,新型钢管混凝土节点的非线性有线元分析[J],长安大学学报(自然科学版),2004,9,24(5)。
[42]唐眠,蔡健,新型钢管混凝土柱-平板节点的非线性有线元分析[J],华南理工大学学报(自然科学版),2003,6,31(6)。
[43]刘建平,郭彦林,K型方、圆管相贯节点的极限承载力非线性有限元分析[J],建筑科学,2001,17(2):50一53。
[44]刘建平,郭彦林,刘国栋,圆管相贯节点极限承载力有限元分析[J],建筑结构,2002,32(7):56~59。
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