半整体式桥台无缝桥梁研究
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摘要
本论文针对桥梁伸缩缝病害，引入一种新型无伸缩装置结构—半整体式桥台无缝桥梁，建立该桥型全结构有限元模型并对其受力性能进行全面分析。半整体式桥台无缝桥梁计算模型考虑了上部结构-下部结构-土的共同作用；台后土抗力升温时采用静止土压力加弹性土抗力，降温时采用主动土压力；分析桥梁受力性能时考虑了结构自重、车辆荷载和季节性温变荷载的作用。以一座桥长100m Pc半整体式桥台无缝桥梁为实例，采用大型通用软件Ansys建立平面框架模型，进行弹性、大变形分析，模拟全桥受力和变形特点；同时建立与此对应的有伸缩缝桥梁和整体式桥台无缝桥梁有限元模型，通过三种桥型同步加载对比分析，研究半整体式桥台无缝桥梁独特的受力特点和结构性能，总结其设计控制因素和构造要求。通过本文研究知：半整体式桥台无缝桥梁主梁的剪力、弯矩、挠度和下部结构的轴力与梁式桥相近，结构整体刚度增大，并除去了伸缩缝病害；但主梁增加了轴力，下部结构剪力、弯矩较梁式桥大；综合分析是一种受力合理有实践和推广价值的桥型。
This paper ,in allusion to damage of expansion joint of bridge ,introduces a sort of new structure of jointless device - Semi - Integral Abutment Jointless Bridge , and establishes model of general structure finite element of this bridge ,and in details analyses its qualities of stress .The model considers the interaction of superstructure
- substructure - soil .Resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising ,but active soil pressure when dropping .Analysis of qualities stress of bridge includes of action of dead load ,car load ,temperature load of season character .Taking an 100m length PC Semi
- Integral Abutment Jointless Bridge as instance , the paper establishes the model of plane frame by applying large common software - Anasys ,and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge .At the same time corresponding models of finite element of joint bridge and integral abutment bridge are established ,and unique stress and performance of structure of Semi - Integral Abutment Jointless Bridge are researched by comparing and analysing character of three different models under same loading ,and controlling factor of design and constitution are generalized .In conclusion ,for Semi - Integral Abutment Jointless Bridge ,on one hand shear ,moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge ,and integral stifmess of structure is increased and damage of expansion joint is eliminated ,on the other hand there is axis force in main beam , shear and moment of substructure are bigger than that of joint bridge .In all this type of jointless bridge has rational stress and is worth of application and popularization.
This paper ,in allusion to damage of expansion joint of bridge ,introduces a sort of new structure of jointless device - Semi - Integral Abutment Jointless Bridge , and establishes model of general structure finite element of this bridge ,and in details analyses its qualities of stress .The model considers the interaction of superstructure
- substructure - soil .Resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising ,but active soil pressure when dropping .Analysis of qualities stress of bridge includes of action of dead load ,car load ,temperature load of season character .Taking an 100m length PC Semi
- Integral Abutment Jointless Bridge as instance , the paper establishes the model of plane frame by applying large common software - Anasys ,and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge .At the same time corresponding models of finite element of joint bridge and integral abutment bridge are established ,and unique stress and performance of structure of Semi - Integral Abutment Jointless Bridge are researched by comparing and analysing character of three different models under same loading ,and controlling factor of design and constitution are generalized .In conclusion ,for Semi - Integral Abutment Jointless Bridge ,on one hand shear ,moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge ,and integral stifmess of structure is increased and damage of expansion joint is eliminated ,on the other hand there is axis force in main beam , shear and moment of substructure are bigger than that of joint bridge .In all this type of jointless bridge has rational stress and is worth of application and popularization.
引文
[1]博嘉科技 编著 《有限元分析软件—Ansys融会与贯通》 中国水利水电出版社 2002
[2]范立础主编 《桥梁工程》 人民交通出版社 1987
[3]范立础主编 《预应力混凝土连续梁桥》 人民交通出版社 1988
[4]范文田、何广汉、张式深、罗无量 译， [加]A．P．S塞尔瓦杜雷 著 《土与基础相互作用的弹性分析》 中国铁道出版社
[5]洪锦祥、彭大文 《无伸缩缝桥梁的计算模型研究》 福建建筑 2001
[6]胡人礼 编著 《桥梁桩基础分析和设计》 中国铁道出版社 1987
[7]华南理工大学、东南大学、浙江大学、湖南大学 编 《地基及基础》 中国建筑工业出版社 1992
[8]嘉木工作室编著 《Ansys5.7有限元实例分析教程》 机械工业出版社 2002．3
[9]江祖铭、王崇礼 主编，黄文机主审 《墩台与基础》 人民交通出版社 1994
[10]金吉寅 等 《桥梁附属构造与支座》 人民交通出版社 1999
[11]金晓勤、邵旭东 《整体式无缝桥梁的研究与应用》 重庆交通学院学报 2002．9
[12]李扬海、程潮洋、鲍卫刚 等 《公路桥梁伸缩装置[M]》 人民交通出版社 1999
[13]凌治平、易经武 主编，洪毓康 主审 《基础工程》 人民交通出版社 1997
[14]马竟、金晓勤 《我国第一座整体式全无缝桥梁—广东清远四九桥的设计思路》中南公路工程 2002．6
[15]彭大文 《无伸缩装置桥梁的发展》 福州大学学报(自然科学版)2001．4
[16]唐寰澄 译，马丁·比·布克 编《整体桥梁—一种兴自美国的新桥式》 国外桥梁 1999．1
[17]滕智明、朱金铨编著 《混凝土结构及砌体结构》 中国建筑工业出版社 1995
[18]王伯惠 《取消桥梁伸缩缝作法的新发展[A]》 1991年桥梁学术讨论会论文集[C]．人民交通出版社 1991．9
[19]王焕定、吴德伦 主编，林家骥 主审 《有限单元法及计算程序》 中国建筑工业出版社 1997．6
[20]文雪琴 《无支座、无伸缩缝、整体刚度大的混凝土桥梁》 浙江交通科技 2000．3
[21]徐岳、王亚君、万振江 《预应力混凝土连续梁桥设计》 人民交通出版社 2000
[22]辛济平 等译 《美国公路桥梁设计规范[M]．》 人民交通出版社 1998
[23]叶见曙 主编，袁国干 主审 《结构设计原理》 人民交通出版社 1997
[24]于丹如 译 《无缝桥梁的支承桩》—编译自《Journal of Structural Engineering》 1988
[25]余顺新 译，何正贵 校 《预应力梁整体式桥》—摘译自《结构工程师》 1990．12
[26]张亮、宁夏元 《设置小边跨的无缝连续梁桥设计》 中南公路工程 1998．6
[27]张清、张弥 译，[西德]G．哥德赫 著 《有限元法在岩土力学中的应用》 中国铁道出版社 1983
[28]庄军生 《桥梁支座》 中国铁道出版社
[29]中华人民共和国交通部部标准 《公路桥涵设计规范》(合订本) 人民交通出版社 1989
[30]B.A Nicholson Effects of temperature, shrinkage and creep on integral bridges Consulting Engineer Bicester, UK
[31]Design Consideration for Integral Bridge in Florida Literature Review
[32]E.C Hambly, G.W Owens Jointless steel viaducts for railway Edmund Hambly Ltd, Berkhamsted, UK Steel Construction Institute, Ascot, UK
[33]Edward Wasserman P, Walker John H. Integral abutments for steel bridge[J]. American iron and steel institute. Highway Structures Design Handbook. 1996.2(5)
[34]Edward Wasserman P. Record length jointless bridge[J]. Portland Cement Association Engineered Concrete Structures. 1999.12(2)
[35]E.M Veje Danish integral bridges Cowiconsult, Consulting Engineers and Planners AS, Lyngby, Denmark
[36]F.Martinez Y Cabrera Italian joint-free bridge decks Department of Structural Engineering, Polytechnic of Milan, Italy
[37]G.P Paterson The UK department of transport view on continuity/integral bridges Department of Transport, London, UK
[38]Henry G.Ressell, Lee J.Gerken Jointless Bridges—the Knows and the Unknows American Concrete Institute 1994.4
[39]H Takano. Study on jointless bridge construction in Japan Engineering Department Metropolitan Expressway Public Corporation. Tokyo.Japan
[40]Lee H W, Sarsam M B. Analysis of integral abutment bridge[R].South Dakota Department of Transportaion. 1973
[41]Martin P Burke JR. Integral bridges: attributes and limitations[R].Washington: National Research Council. 1993
[42]M.P Burke, Jr Semi-integral bridges: A concept whose time has come?Burgess & Niple Ltd, Columbus, Ohio, USA
[43]Soltani Alan A, Kukreti Anant R. Performance evaluation of integral abutment bridges[R]. Washington: National Research Council. 1992
[44]Steward C F. Long highway structures without expansion joints[R]. California Depardment of Transportation. 1983
[45]S.M Springman, A.R.M Notrish Soil-structure interaction: centrifuge modelling of integral bridge abutments Department of Engineering, University of Cambridge, UK
[46]Wokle-Tinsae A M, Greimann L F, Johmson B V. Performance of integral bridge abutments[A]. IABSE Proceedings[C]. 1983
[2]范立础主编 《桥梁工程》 人民交通出版社 1987
[3]范立础主编 《预应力混凝土连续梁桥》 人民交通出版社 1988
[4]范文田、何广汉、张式深、罗无量 译， [加]A．P．S塞尔瓦杜雷 著 《土与基础相互作用的弹性分析》 中国铁道出版社
[5]洪锦祥、彭大文 《无伸缩缝桥梁的计算模型研究》 福建建筑 2001
[6]胡人礼 编著 《桥梁桩基础分析和设计》 中国铁道出版社 1987
[7]华南理工大学、东南大学、浙江大学、湖南大学 编 《地基及基础》 中国建筑工业出版社 1992
[8]嘉木工作室编著 《Ansys5.7有限元实例分析教程》 机械工业出版社 2002．3
[9]江祖铭、王崇礼 主编，黄文机主审 《墩台与基础》 人民交通出版社 1994
[10]金吉寅 等 《桥梁附属构造与支座》 人民交通出版社 1999
[11]金晓勤、邵旭东 《整体式无缝桥梁的研究与应用》 重庆交通学院学报 2002．9
[12]李扬海、程潮洋、鲍卫刚 等 《公路桥梁伸缩装置[M]》 人民交通出版社 1999
[13]凌治平、易经武 主编，洪毓康 主审 《基础工程》 人民交通出版社 1997
[14]马竟、金晓勤 《我国第一座整体式全无缝桥梁—广东清远四九桥的设计思路》中南公路工程 2002．6
[15]彭大文 《无伸缩装置桥梁的发展》 福州大学学报(自然科学版)2001．4
[16]唐寰澄 译，马丁·比·布克 编《整体桥梁—一种兴自美国的新桥式》 国外桥梁 1999．1
[17]滕智明、朱金铨编著 《混凝土结构及砌体结构》 中国建筑工业出版社 1995
[18]王伯惠 《取消桥梁伸缩缝作法的新发展[A]》 1991年桥梁学术讨论会论文集[C]．人民交通出版社 1991．9
[19]王焕定、吴德伦 主编，林家骥 主审 《有限单元法及计算程序》 中国建筑工业出版社 1997．6
[20]文雪琴 《无支座、无伸缩缝、整体刚度大的混凝土桥梁》 浙江交通科技 2000．3
[21]徐岳、王亚君、万振江 《预应力混凝土连续梁桥设计》 人民交通出版社 2000
[22]辛济平 等译 《美国公路桥梁设计规范[M]．》 人民交通出版社 1998
[23]叶见曙 主编，袁国干 主审 《结构设计原理》 人民交通出版社 1997
[24]于丹如 译 《无缝桥梁的支承桩》—编译自《Journal of Structural Engineering》 1988
[25]余顺新 译，何正贵 校 《预应力梁整体式桥》—摘译自《结构工程师》 1990．12
[26]张亮、宁夏元 《设置小边跨的无缝连续梁桥设计》 中南公路工程 1998．6
[27]张清、张弥 译，[西德]G．哥德赫 著 《有限元法在岩土力学中的应用》 中国铁道出版社 1983
[28]庄军生 《桥梁支座》 中国铁道出版社
[29]中华人民共和国交通部部标准 《公路桥涵设计规范》(合订本) 人民交通出版社 1989
[30]B.A Nicholson Effects of temperature, shrinkage and creep on integral bridges Consulting Engineer Bicester, UK
[31]Design Consideration for Integral Bridge in Florida Literature Review
[32]E.C Hambly, G.W Owens Jointless steel viaducts for railway Edmund Hambly Ltd, Berkhamsted, UK Steel Construction Institute, Ascot, UK
[33]Edward Wasserman P, Walker John H. Integral abutments for steel bridge[J]. American iron and steel institute. Highway Structures Design Handbook. 1996.2(5)
[34]Edward Wasserman P. Record length jointless bridge[J]. Portland Cement Association Engineered Concrete Structures. 1999.12(2)
[35]E.M Veje Danish integral bridges Cowiconsult, Consulting Engineers and Planners AS, Lyngby, Denmark
[36]F.Martinez Y Cabrera Italian joint-free bridge decks Department of Structural Engineering, Polytechnic of Milan, Italy
[37]G.P Paterson The UK department of transport view on continuity/integral bridges Department of Transport, London, UK
[38]Henry G.Ressell, Lee J.Gerken Jointless Bridges—the Knows and the Unknows American Concrete Institute 1994.4
[39]H Takano. Study on jointless bridge construction in Japan Engineering Department Metropolitan Expressway Public Corporation. Tokyo.Japan
[40]Lee H W, Sarsam M B. Analysis of integral abutment bridge[R].South Dakota Department of Transportaion. 1973
[41]Martin P Burke JR. Integral bridges: attributes and limitations[R].Washington: National Research Council. 1993
[42]M.P Burke, Jr Semi-integral bridges: A concept whose time has come?Burgess & Niple Ltd, Columbus, Ohio, USA
[43]Soltani Alan A, Kukreti Anant R. Performance evaluation of integral abutment bridges[R]. Washington: National Research Council. 1992
[44]Steward C F. Long highway structures without expansion joints[R]. California Depardment of Transportation. 1983
[45]S.M Springman, A.R.M Notrish Soil-structure interaction: centrifuge modelling of integral bridge abutments Department of Engineering, University of Cambridge, UK
[46]Wokle-Tinsae A M, Greimann L F, Johmson B V. Performance of integral bridge abutments[A]. IABSE Proceedings[C]. 1983