独柱整体式板梁桥的加固方法研究
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摘要
近年来,独柱整体式板梁桥作为城市立交桥、高架桥普遍修建的桥型,由于造型简洁流畅、建筑高度小、桥下通视性好、适应场合多、施工方便及工程造价较低等优点而得到了极大的发展。由于该桥型独特的受力特性,其静力分析及加固研究工作却相对滞后。为研究独柱整体式板梁桥的加固方法及理论,论文以浙江省长兴县青塘坝桥为背景,对独柱整体式板梁桥的受力特性及加固原理进行分析研究。本文的研究工作和主要成果有：
1.阐述了独柱整体式板梁桥的解析计算理论和数值分析方法,并在此基础上采用有限元法分别建立梁单元模型和实体单元模型,分析研究独柱整体式板梁桥的纵向、横向受力特性,以及端横梁、独柱墩墩顶截面及边跨端横梁与主梁结合部等关键节点的局部受力性能,为该类桥型加固设计提供参考。
2.详细介绍了粘钢法加固独柱整体式板梁桥的加固机理以及各种材料的本构关系,为粘钢法加固该类型桥梁提供理论支持；总结了有限元法分析粘钢法加固的三种模型：整体式、分离式、组合式,并借助有限元程序按分离式模型对本文实例建立了加固分析模型。
3.结合实桥的具体情况,进行提高荷载等级的潜力分析,制定了可行的加固设计方案和加固施工工艺,并对加固后的结构进行详细分析计算。
4.通过加固后荷载试验对加固效果进行评定,论述粘钢加固法对独柱整体式板梁桥的适用性。
In recent years, as a general city overpass and viaduct built bridge, this bridge has been developed greatly as simple and smooth shape, building height is small, the visibility under the bridge, adapt to situations and more convenient for construction, and low cost advantages, due to the unique bridge-type force characteristics, the static analysis and study of Reinforcement is relatively lagging behind. To ensure that research on the whole-plate girder bridge of single column reinforced and strengthened, Based on the engineering background of QingTangBa Bridge in ChangXing County, Zhejiang Province, on the single column as a whole-plate girder bridge force characteristics and reinforcement principles was researched.
The main research contents and achievements are as follows:
1. Based on thin plate theory, finite element method for beam element model and solid element model analysis of the vertical and horizontal characteristics of a whole-plate girder on single column bridge, finite element method using space on the diaphragm beam, top of pier, side cross-side cross-beam and main beam across the critical junction node of the local mechanical properties, for the kind of reference for the design of bridge reinforcement.
2. Type of bridge for the force characteristics of the finite element method results, select the appropriate reinforcement method, using large-scale finite element program of the bridge longitudinal and transverse reinforcement of research, summed up the kind strengthened by bonded steel bridge reinforcement theory.
3. The specific circumstances of this bridge to carry out mention of containing the potential to develop a feasible reinforcement, described in detail strengthened by bonded steel construction technology, strengthened by bonded steel construction to provide a reference.
4. After the load test through the reinforcement effect was assessed on the reinforcement, structural reinforcement to achieve the desired effect.
1.阐述了独柱整体式板梁桥的解析计算理论和数值分析方法,并在此基础上采用有限元法分别建立梁单元模型和实体单元模型,分析研究独柱整体式板梁桥的纵向、横向受力特性,以及端横梁、独柱墩墩顶截面及边跨端横梁与主梁结合部等关键节点的局部受力性能,为该类桥型加固设计提供参考。
2.详细介绍了粘钢法加固独柱整体式板梁桥的加固机理以及各种材料的本构关系,为粘钢法加固该类型桥梁提供理论支持；总结了有限元法分析粘钢法加固的三种模型：整体式、分离式、组合式,并借助有限元程序按分离式模型对本文实例建立了加固分析模型。
3.结合实桥的具体情况,进行提高荷载等级的潜力分析,制定了可行的加固设计方案和加固施工工艺,并对加固后的结构进行详细分析计算。
4.通过加固后荷载试验对加固效果进行评定,论述粘钢加固法对独柱整体式板梁桥的适用性。
In recent years, as a general city overpass and viaduct built bridge, this bridge has been developed greatly as simple and smooth shape, building height is small, the visibility under the bridge, adapt to situations and more convenient for construction, and low cost advantages, due to the unique bridge-type force characteristics, the static analysis and study of Reinforcement is relatively lagging behind. To ensure that research on the whole-plate girder bridge of single column reinforced and strengthened, Based on the engineering background of QingTangBa Bridge in ChangXing County, Zhejiang Province, on the single column as a whole-plate girder bridge force characteristics and reinforcement principles was researched.
The main research contents and achievements are as follows:
1. Based on thin plate theory, finite element method for beam element model and solid element model analysis of the vertical and horizontal characteristics of a whole-plate girder on single column bridge, finite element method using space on the diaphragm beam, top of pier, side cross-side cross-beam and main beam across the critical junction node of the local mechanical properties, for the kind of reference for the design of bridge reinforcement.
2. Type of bridge for the force characteristics of the finite element method results, select the appropriate reinforcement method, using large-scale finite element program of the bridge longitudinal and transverse reinforcement of research, summed up the kind strengthened by bonded steel bridge reinforcement theory.
3. The specific circumstances of this bridge to carry out mention of containing the potential to develop a feasible reinforcement, described in detail strengthened by bonded steel construction technology, strengthened by bonded steel construction to provide a reference.
4. After the load test through the reinforcement effect was assessed on the reinforcement, structural reinforcement to achieve the desired effect.
引文
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[17]张元海.桥梁结构理论分析.北京：科学出版社,2005
[18]贾金青、陈凤山.桥粱工程设计计算方法及应用[M].北京：中国建筑工业出版社,2003
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[22]程翔云.梁桥理论与计算[M].北京：人民交通出版社,1986
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[24]刘来君、赵小星.桥梁加固设计与施工技术[M].北京：人民交通出版社,2004
[25]张树仁,王宗林.桥梁病害诊断与改造加固技术[M].北京：人民交通出版社,2006
[26]王树森.整体现浇板桥梁结构检测与加固技术[J].北京.公路交通科技出版社,2005
[27]常文洁.城市独柱墩桥梁结构受力分析[D].大连理工大学硕士论文,2009
[28]卢靖宇.连续梁桥加固方法研究[J].长安大学：硕士论文,2009
[29]袁摄桢,戴公连,吴建武.单柱宽幅连续梁桥横向倾覆稳定性探讨[J].中外建筑,2008
[30]夏占武.桥梁检测与加固技术应用[D].吉林大学硕士论文,2004
[31]过镇海.钢筋混凝土原理和分析[M].北京：人民交通出版社,2003
[32]吴志平.粘钢技术在平战功能转换中的应用研究[D].同济大学博士论文,2004
[33]叶士昭等.粘贴钢板加固桥梁分阶段受力抗弯承载力极限状态分析[J].中国水运,2007,03-0092-02
[34]叶见署,谢娟.粘贴钢板加固预应力混凝土梁的设计方法[J].华东公路,1994
[35]杨云安,唐家祥,陈光明.粘钢加固钢筋混凝土矩形受扭构件的非线性有限元数值模拟[J].武汉：华中科技大学学报,2003,02-0039-04
[36]TaljstenB. Strengthening of beams by plate bonding. J. Mater. Civil Eng.ASCE.1997(4):206-212.
[37]魏文晖,周波.粘钢加固混凝土构件非线性有限元分析[J].武汉：岩土力学杂志,2002增-0250-03
[38]Oehlers DJ. Reinforced concrete beams with plates glued to their soffits. J. Struct. Eng ASCE 1992(8):2023-2038.
[39]叶见署.结构设计原理[M].北京：人民交通出版社,2005
[40]中交第一公路勘察设计研究院有限公司.公路桥梁加固设计规范JTGT J22-2008[S].北京：人民交通出版社,2008
[2]翰伯林.世界桥梁发展史[M].上海：上海知识出版社,1987
[3]王伯惠、张亚军.无梁板桥[M].北京：人民交通出版社,1997
[4]李国豪.中国桥梁[M].上海：同济大学出版社,1993
[5]余顺新.脊骨梁桥——城市立交的新桥型[J].长沙：中南公路工程出版社,1996
[6]戴公连、李德建.桥梁结构空间分析设计方法与应用[M].北京：人民交通出版社,2001
[7]罗许国、戴公连.大型钢脊骨梁剪力滞效应分析[J].株洲工学院学报,2002,01-0089-03
[8]彭大文、袁燕.曲线脊骨箱梁受力性能研究[J].北京：中国公路学报,2001,03-0051-06
[9]郭梅、郝宪武.无梁板桥的抗震分析[J].西安：西安公路交通大学学报,1999
[10]梁峰.三跨独柱连续梁桥抗倾覆能力研究[J].北京：公路,2009,10-0040-04
[11]杨忠平、王元汉.无梁板桥的结构分析方法及尺寸优化.北京：城市道桥与防洪,2005,05-0060-03
[12]青塘坝桥设计图[S].湖州.湖州交通规划设计院,2007
[13]项海帆主编.高等桥梁结构理论[M].北京：人民交通出版社,2000
[14]贺栓海主编.桥梁结构理论与计算方法[M].北京：人民交通出版社,2002
[15]王助成,肋敏.有限单元法基本原理和数值方法[M].北京：清华大学出版社。1997
[16]汪劲丰,吴光宇.桥梁结构仿真分析理论极其工程应用[M].杭州：浙江大学出版社,2007
[17]张元海.桥梁结构理论分析.北京：科学出版社,2005
[18]贾金青、陈凤山.桥粱工程设计计算方法及应用[M].北京：中国建筑工业出版社,2003
[19]李明昭、万国宏.桥梁结构力学[M].北京：人民交通出版社,1990
[20]Dr. Yew-chaye Los, Professor Anthony R. Cusens. The finite-Strig Method in Bridge Engineering [M]. Great Britain:Cement and Concrete Association,1978
[21]杜国华、毛昌时、司徒妙龄.桥梁结构分析[D].上海：同济大学出版社,1994
[22]程翔云.梁桥理论与计算[M].北京：人民交通出版社,1986
[23]朱伯芳.有限单元法原理和应用[M].北京：水利水电出版社,2000
[24]刘来君、赵小星.桥梁加固设计与施工技术[M].北京：人民交通出版社,2004
[25]张树仁,王宗林.桥梁病害诊断与改造加固技术[M].北京：人民交通出版社,2006
[26]王树森.整体现浇板桥梁结构检测与加固技术[J].北京.公路交通科技出版社,2005
[27]常文洁.城市独柱墩桥梁结构受力分析[D].大连理工大学硕士论文,2009
[28]卢靖宇.连续梁桥加固方法研究[J].长安大学：硕士论文,2009
[29]袁摄桢,戴公连,吴建武.单柱宽幅连续梁桥横向倾覆稳定性探讨[J].中外建筑,2008
[30]夏占武.桥梁检测与加固技术应用[D].吉林大学硕士论文,2004
[31]过镇海.钢筋混凝土原理和分析[M].北京：人民交通出版社,2003
[32]吴志平.粘钢技术在平战功能转换中的应用研究[D].同济大学博士论文,2004
[33]叶士昭等.粘贴钢板加固桥梁分阶段受力抗弯承载力极限状态分析[J].中国水运,2007,03-0092-02
[34]叶见署,谢娟.粘贴钢板加固预应力混凝土梁的设计方法[J].华东公路,1994
[35]杨云安,唐家祥,陈光明.粘钢加固钢筋混凝土矩形受扭构件的非线性有限元数值模拟[J].武汉：华中科技大学学报,2003,02-0039-04
[36]TaljstenB. Strengthening of beams by plate bonding. J. Mater. Civil Eng.ASCE.1997(4):206-212.
[37]魏文晖,周波.粘钢加固混凝土构件非线性有限元分析[J].武汉：岩土力学杂志,2002增-0250-03
[38]Oehlers DJ. Reinforced concrete beams with plates glued to their soffits. J. Struct. Eng ASCE 1992(8):2023-2038.
[39]叶见署.结构设计原理[M].北京：人民交通出版社,2005
[40]中交第一公路勘察设计研究院有限公司.公路桥梁加固设计规范JTGT J22-2008[S].北京：人民交通出版社,2008