铁路钢箱梁斜拉桥索梁锚固结构疲劳模型试验方案研究
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摘要
随着我国大跨度斜拉桥的发展,对大跨度斜拉桥索梁锚固结构的要求也越来越高。斜拉桥索梁锚固结构由于其受力集中、结构复杂,是控制设计的关键部位,同时也是疲劳研究的重点部位。因此了解索梁锚固结构的传力方式,掌握其应力分布情况是十分重要的。
甬江铁路特大斜拉桥采用锚箱式索梁锚固结构。该锚箱与传统钢锚箱区别在于其支承板分别与钢箱梁边纵腹板和风嘴板连接。该锚箱设计新颖,因此需要对其在铁路荷载下的疲劳性能进行详细的研究。本文以甬江特大铁路斜拉桥为工程背景,通过有限元分析的方法,对钢锚箱疲劳性能试验进行方案设计的研究。本文的研究内容是对甬江特大桥索梁锚固结构疲劳性能研究的前期准备工作,同时也是对这种新型锚箱结构传力方式与应力状态的研究。本论文的具体工作如下：
1.通过有限元软件对甬江特大桥全桥进行计算,从而由该桥梁端的成桥索力状态以及活载索力幅来制定钢锚箱疲劳试验的试验荷载。
2.应用有限元软件对甬江特大桥钢锚箱进行计算分析,明确该锚箱结构的传力方式与各主要板件的应力情况。
3.设计甬江特大桥钢锚箱疲劳性能研究的试验模型,并且通过试验模型与原桥锚箱的对比分析,验证模型的等效性。
With the development of long-span cable-stayed bridge in China, the requirements on the cable-girder anchorage of a long-span cable-stayed bridge are getting higher and higher. Because of the cable-girder anchorage of cable-stayed bridges force concentrated, complex structure, is a key part of the control design, and also the fatigue of key positions. Therefore, understanding the way of cable-girder anchorage force transmission, and grasp the stress distribution is very important.
Yongjiang railway extra long-span cable-stayed bridge uses the anchor-box type of cable-girder anchorage structure. The difference between this anchor-box and traditional anchor-boxes is that the support plates connect with both of the fairing plate and web plate. This anchor-box is designed novel, so it's necessary to do a research on the fatigue behavior of this structural form under the railway load. This thesis is based on the Yongjiang rail-way extra long-span cable-stayed bridge, through the finite element analysis method to design program of the anchor-box fatigue performance research. The research content of this thesis is to study the preparatory work of YongJiang bridge cable-girder anchorage fatigue performance, and also study the force transmission and stress distribution of this new structure. The specific work is as follows:
1. Through the finite element software to calculate the whole bridge, use the cable force state and live load of cable force to confirm the test load of the anchor-box fatigue test.
2. Through the finite element software to calculate and analyze the anchor-box of the Yongjiang Bridge, realize the force transmission and stress distribution of this anchor-box.
3. Design the model of the fatigue test, and through the experiment model and the Yongjiang bridge anchor-box of analysis to proving the model equivalent.
甬江铁路特大斜拉桥采用锚箱式索梁锚固结构。该锚箱与传统钢锚箱区别在于其支承板分别与钢箱梁边纵腹板和风嘴板连接。该锚箱设计新颖,因此需要对其在铁路荷载下的疲劳性能进行详细的研究。本文以甬江特大铁路斜拉桥为工程背景,通过有限元分析的方法,对钢锚箱疲劳性能试验进行方案设计的研究。本文的研究内容是对甬江特大桥索梁锚固结构疲劳性能研究的前期准备工作,同时也是对这种新型锚箱结构传力方式与应力状态的研究。本论文的具体工作如下：
1.通过有限元软件对甬江特大桥全桥进行计算,从而由该桥梁端的成桥索力状态以及活载索力幅来制定钢锚箱疲劳试验的试验荷载。
2.应用有限元软件对甬江特大桥钢锚箱进行计算分析,明确该锚箱结构的传力方式与各主要板件的应力情况。
3.设计甬江特大桥钢锚箱疲劳性能研究的试验模型,并且通过试验模型与原桥锚箱的对比分析,验证模型的等效性。
With the development of long-span cable-stayed bridge in China, the requirements on the cable-girder anchorage of a long-span cable-stayed bridge are getting higher and higher. Because of the cable-girder anchorage of cable-stayed bridges force concentrated, complex structure, is a key part of the control design, and also the fatigue of key positions. Therefore, understanding the way of cable-girder anchorage force transmission, and grasp the stress distribution is very important.
Yongjiang railway extra long-span cable-stayed bridge uses the anchor-box type of cable-girder anchorage structure. The difference between this anchor-box and traditional anchor-boxes is that the support plates connect with both of the fairing plate and web plate. This anchor-box is designed novel, so it's necessary to do a research on the fatigue behavior of this structural form under the railway load. This thesis is based on the Yongjiang rail-way extra long-span cable-stayed bridge, through the finite element analysis method to design program of the anchor-box fatigue performance research. The research content of this thesis is to study the preparatory work of YongJiang bridge cable-girder anchorage fatigue performance, and also study the force transmission and stress distribution of this new structure. The specific work is as follows:
1. Through the finite element software to calculate the whole bridge, use the cable force state and live load of cable force to confirm the test load of the anchor-box fatigue test.
2. Through the finite element software to calculate and analyze the anchor-box of the Yongjiang Bridge, realize the force transmission and stress distribution of this anchor-box.
3. Design the model of the fatigue test, and through the experiment model and the Yongjiang bridge anchor-box of analysis to proving the model equivalent.
引文
[1]李小珍,蔡婧,强士中.大跨度钢箱梁斜拉桥索梁锚固结构型式的比较研究.[J].土木工程学报,2004
[2]满洪高.大跨度钢斜拉桥索梁锚固结构试验研究[博士论文][D].西南交通大学,2007
[3]王春寒.索梁锚固结构疲劳性能试验与研究[硕士论文][D].西南交通大学,2005
[4]项海帆.高等桥梁结构理论.北京：人民交通出版社,2001
[5]J.W.费希尔.钢桥疲劳设计解说.北京：人民铁道出版社,1980
[6]J.W.费希尔.钢桥的疲劳和断裂.北京：人民铁道出版社,1989
[7]范立础.桥梁工程.北京：人民交通出版社,2001
[8]崔鑫.大跨度铁路钢桥疲劳多线系数制定方法研究[硕士论文][D].铁道科学研究院,2006
[9]英国标准协会.BS5400.钢桥.混凝土桥及结合梁.成都：西南交通大学出版社,1986
[10]小西一郎.钢桥.北京：人民铁道出版社,1980
[11]刘士林,王似舜.斜拉桥设计.北京：人民交通出版社,2006
[12]周孟波.斜拉桥手册.北京：人民交通出版社,2004
[13]吴冲.现代钢桥(上册).北京：人民交通出版社,2006
[14]雷宏刚,付强,刘晓娟.中国钢结构疲劳研究领域的30年进展.[J].建筑结构学报,2003
[15]李小珍,任伟平,卫星,强士中.现代钢桥新型结构形式及其疲劳问题分析[J].钢结构,2006
[16]刘庆宽,王新敏,强士中.南京长江二桥南汉桥索梁锚固足尺模型试验研究.[J].土木工程学报,2001
[17]罗鸣.大跨度斜拉桥索梁锚固结构力学行为研究.[J].铁道工程学报,2010
[18]包立新,卫星,李俊,李小珍,强士中,任伟平.钢箱梁斜拉桥索梁锚固区的抗疲劳性能试验研究.[J].工程力学,2007
[19]钱冬生.平心静气谈桥梁[J].桥梁建设,2008
[20]潘际炎.焊接钢结构疲劳[J].中国铁道科学,2010
[21]万臻,李乔.大跨度斜拉桥索梁锚固区三维有限元仿真分析.[J].中国铁道科学,2006
[22]万臻,李乔,毛学明.大跨度斜拉桥钢锚箱式索梁锚固结构空间有限元模型比较研究.[J].四川建筑科学研究,2006
[23]戴清.上海长江大桥索梁锚固区疲劳分析研究.[J].世界桥梁,2009
[24]苏庆田,吴冲,何武超.上海长江大桥索梁锚固区疲劳试验研究.[J].工程力学,2010
[25]吴冲,韦杰鼎,曾明根,苏庆田.上海长江大桥斜拉桥索梁锚固区静力试验研究[J].桥梁建设,2007
[26]程章宏,顾萍.江东大桥索梁锚固区极限承载力分析.[J].公路,2011
[27]周绪红,吕忠达,狄谨.钢箱梁斜拉桥索梁锚固区极限承载力分析.[J].长安大学学报(自然科学版),2007
[28]熊刚,丁雪松,谢斌.大跨度钢箱梁斜拉桥索梁锚固结构的发展与应用.[J].预应力技术,2009
[29]王新敏ANSYS工程结构数值分析.北京：人民交通出版社,2007
[30]龚曙光,谢桂兰,黄云清ANSYS参数化编程与命令手册.北京：机械工业出版社,2009
[31]邱顺冬.桥梁工程软件midas Civil常见问题解答.北京：人民交通出版社,2009
[32]邱顺冬.桥梁工程软件midas Civil应用工程实例.北京：人民交通出版社,2011
[33]徐芝伦.弹性力学.北京：高等教育出版社,1986
[34]钱冬生.钢桥疲劳设计.成都：西南交通大学出版社,1986
[35]郑舟军,刘宏,郭志敏.斜拉桥索梁锚固区足尺疲劳试验研究.[J].实验室研究与探索,2007
[36]Roger L.Brockenbrough,Frederick S.Merritt.STRUCTURAL STEEL BESIGNER'S HANDBOOK上海：同济大学出版社,2007
[37]AASHTO.(1998).LRFD.bridhe design specifications,Washington,D,C
[38]Nishikawa,K.,Murakoshi,J.,Yamamoto,S. and Sugiyama,J., Damage in bridg superstructures by live load and countermeasures. Civil Engineering Journal of PWRI,1993
[39]Japen Road Association.Fatigue of Steel Highway Bridges, 1997
[40]Japan Steel Structure Association,Fatigue Design Guide and Commentary, 1993
[41]Skorua,M.(1992).Fatigue Life Prediction of Cruciform Joints at the Weld Toe.Welding Journal
[42]Frank.K.H,and Fisher,J.W.(1979).Fatigue strength of fillet welded cruciform joints.Journal of the Structural Division,ASCE,Vol.105,No.9
[43]European Committee Standardization.Eurocode 3:Design of steel structures-Part-9:Fatigue(EN 1993-1-9:2005)
[44]Lertsima,Chartree.Three-dimensional finite element modeling of a long-span cable- stayed bridge for local stress analysis.Structural Engineering and Mechanics.2004,18(1)
[45]R.Pullin,D.C.Carter,K.M.Holford.Damage assessment in steel bridges,Key Engineering Materials.1999
[46]Henning Agerskov.Fatigue in steel structures under random loading.Journal of Constructional Steel Research.53(2000)
[47]Broek D.The practical use of fracture mechanies.Dordrecht: Kluwer Academic Publishers; 1988
[48]Bathe K.J.Finite Element Procedures in Engineering Analysis[M].New York:Pretice-Hall, 1982
[49]中国机械协会焊接学会.焊接手册.第二版.北京：机械工业出版社,2003
[50]何武超.共轨两用斜拉桥钢锚箱式索梁锚固区足尺模型疲劳试验研究[硕士论文][D].同济大学,2007
[51]司秀勇.斜拉桥索梁锚固结构受力行为理论分析[硕士论文][D].西南交通大学,2005
[52]陈国红,张启伟.斜拉桥钢锚箱式索梁锚固结构的有限混合单元法分析.[J].中外公路,2009
[53]张育智,李乔,满洪高.斜拉桥锚箱式索梁锚固区应力及传力途径分析.[J].西南交通大学学报,2006
[54]满洪高,李乔,张育智.斜拉桥索梁锚固区边界条件对结构受力的影响.[J].实验力学,2006
[55]郑舟军,刘宏,郭志敏.斜拉桥索梁锚固区足尺疲劳试验研究.[J].实验室研究与探索,2007
[2]满洪高.大跨度钢斜拉桥索梁锚固结构试验研究[博士论文][D].西南交通大学,2007
[3]王春寒.索梁锚固结构疲劳性能试验与研究[硕士论文][D].西南交通大学,2005
[4]项海帆.高等桥梁结构理论.北京：人民交通出版社,2001
[5]J.W.费希尔.钢桥疲劳设计解说.北京：人民铁道出版社,1980
[6]J.W.费希尔.钢桥的疲劳和断裂.北京：人民铁道出版社,1989
[7]范立础.桥梁工程.北京：人民交通出版社,2001
[8]崔鑫.大跨度铁路钢桥疲劳多线系数制定方法研究[硕士论文][D].铁道科学研究院,2006
[9]英国标准协会.BS5400.钢桥.混凝土桥及结合梁.成都：西南交通大学出版社,1986
[10]小西一郎.钢桥.北京：人民铁道出版社,1980
[11]刘士林,王似舜.斜拉桥设计.北京：人民交通出版社,2006
[12]周孟波.斜拉桥手册.北京：人民交通出版社,2004
[13]吴冲.现代钢桥(上册).北京：人民交通出版社,2006
[14]雷宏刚,付强,刘晓娟.中国钢结构疲劳研究领域的30年进展.[J].建筑结构学报,2003
[15]李小珍,任伟平,卫星,强士中.现代钢桥新型结构形式及其疲劳问题分析[J].钢结构,2006
[16]刘庆宽,王新敏,强士中.南京长江二桥南汉桥索梁锚固足尺模型试验研究.[J].土木工程学报,2001
[17]罗鸣.大跨度斜拉桥索梁锚固结构力学行为研究.[J].铁道工程学报,2010
[18]包立新,卫星,李俊,李小珍,强士中,任伟平.钢箱梁斜拉桥索梁锚固区的抗疲劳性能试验研究.[J].工程力学,2007
[19]钱冬生.平心静气谈桥梁[J].桥梁建设,2008
[20]潘际炎.焊接钢结构疲劳[J].中国铁道科学,2010
[21]万臻,李乔.大跨度斜拉桥索梁锚固区三维有限元仿真分析.[J].中国铁道科学,2006
[22]万臻,李乔,毛学明.大跨度斜拉桥钢锚箱式索梁锚固结构空间有限元模型比较研究.[J].四川建筑科学研究,2006
[23]戴清.上海长江大桥索梁锚固区疲劳分析研究.[J].世界桥梁,2009
[24]苏庆田,吴冲,何武超.上海长江大桥索梁锚固区疲劳试验研究.[J].工程力学,2010
[25]吴冲,韦杰鼎,曾明根,苏庆田.上海长江大桥斜拉桥索梁锚固区静力试验研究[J].桥梁建设,2007
[26]程章宏,顾萍.江东大桥索梁锚固区极限承载力分析.[J].公路,2011
[27]周绪红,吕忠达,狄谨.钢箱梁斜拉桥索梁锚固区极限承载力分析.[J].长安大学学报(自然科学版),2007
[28]熊刚,丁雪松,谢斌.大跨度钢箱梁斜拉桥索梁锚固结构的发展与应用.[J].预应力技术,2009
[29]王新敏ANSYS工程结构数值分析.北京：人民交通出版社,2007
[30]龚曙光,谢桂兰,黄云清ANSYS参数化编程与命令手册.北京：机械工业出版社,2009
[31]邱顺冬.桥梁工程软件midas Civil常见问题解答.北京：人民交通出版社,2009
[32]邱顺冬.桥梁工程软件midas Civil应用工程实例.北京：人民交通出版社,2011
[33]徐芝伦.弹性力学.北京：高等教育出版社,1986
[34]钱冬生.钢桥疲劳设计.成都：西南交通大学出版社,1986
[35]郑舟军,刘宏,郭志敏.斜拉桥索梁锚固区足尺疲劳试验研究.[J].实验室研究与探索,2007
[36]Roger L.Brockenbrough,Frederick S.Merritt.STRUCTURAL STEEL BESIGNER'S HANDBOOK上海：同济大学出版社,2007
[37]AASHTO.(1998).LRFD.bridhe design specifications,Washington,D,C
[38]Nishikawa,K.,Murakoshi,J.,Yamamoto,S. and Sugiyama,J., Damage in bridg superstructures by live load and countermeasures. Civil Engineering Journal of PWRI,1993
[39]Japen Road Association.Fatigue of Steel Highway Bridges, 1997
[40]Japan Steel Structure Association,Fatigue Design Guide and Commentary, 1993
[41]Skorua,M.(1992).Fatigue Life Prediction of Cruciform Joints at the Weld Toe.Welding Journal
[42]Frank.K.H,and Fisher,J.W.(1979).Fatigue strength of fillet welded cruciform joints.Journal of the Structural Division,ASCE,Vol.105,No.9
[43]European Committee Standardization.Eurocode 3:Design of steel structures-Part-9:Fatigue(EN 1993-1-9:2005)
[44]Lertsima,Chartree.Three-dimensional finite element modeling of a long-span cable- stayed bridge for local stress analysis.Structural Engineering and Mechanics.2004,18(1)
[45]R.Pullin,D.C.Carter,K.M.Holford.Damage assessment in steel bridges,Key Engineering Materials.1999
[46]Henning Agerskov.Fatigue in steel structures under random loading.Journal of Constructional Steel Research.53(2000)
[47]Broek D.The practical use of fracture mechanies.Dordrecht: Kluwer Academic Publishers; 1988
[48]Bathe K.J.Finite Element Procedures in Engineering Analysis[M].New York:Pretice-Hall, 1982
[49]中国机械协会焊接学会.焊接手册.第二版.北京：机械工业出版社,2003
[50]何武超.共轨两用斜拉桥钢锚箱式索梁锚固区足尺模型疲劳试验研究[硕士论文][D].同济大学,2007
[51]司秀勇.斜拉桥索梁锚固结构受力行为理论分析[硕士论文][D].西南交通大学,2005
[52]陈国红,张启伟.斜拉桥钢锚箱式索梁锚固结构的有限混合单元法分析.[J].中外公路,2009
[53]张育智,李乔,满洪高.斜拉桥锚箱式索梁锚固区应力及传力途径分析.[J].西南交通大学学报,2006
[54]满洪高,李乔,张育智.斜拉桥索梁锚固区边界条件对结构受力的影响.[J].实验力学,2006
[55]郑舟军,刘宏,郭志敏.斜拉桥索梁锚固区足尺疲劳试验研究.[J].实验室研究与探索,2007