重庆鱼洞长江大桥施工监控技术研究
|
摘要
连续刚构桥是预应力混凝土大跨梁式桥的主要桥型之一,它综合了连续梁和T形刚构桥的受力特点,将主梁做成连续梁体,与薄壁桥墩固结而成。因其施工简便、造价经济、受力合理、行车舒适等独特的优点而得到了广泛的应用。而在连续刚构桥悬臂施工过程中,已经施工完成的梁桥线性在后期的施工过程中是不可改变的,因此为了保证大桥的顺利合拢以及成桥线形满足设计要求,并且成桥后的内力控制在设计容许范围之内,必须在桥梁施工过程中进行施工监控。
大跨径连续刚构桥的施工监控是施工、量测、识别、修正、预告和施工的循环过程。为了达到施工控制的基本要求,可针对施工过程组成随机最优控制系统,对结构状态理论值与实测值之间的误差进行分析、调整、预测。经过计算、预测、监测、评估,实现大桥线性和应力的不断调整和控制,达到预定的目标。
本文以鱼洞长江大桥为工程实例,根据大跨径预应力混凝土连续梁桥的施工控制特点,提出了合理的施工控制方案,建立了全面的监测系统,通过这一监测系统,在施工过程中,成功采集了施工过程中结构变位以及主要控制断面的应力、温度等数据,并结合相关实验数据,对全桥的施工过程进行成功了控制,保证了全桥的顺利合拢,实现了成桥设计线型和合理应力状态。
Continuous rigid frame is one of the main bridge of large-span prestressed concrete beam, combines mechanical characteristics between the continuous beam and T-shaped bridge girder, makes girder to be continuous beam body, and consolidate with Thin-wall piers. It is similar with continuous beam, and can make a league porous. Continuous rigid frame has been growing up rapidly with unique predominance of handy construction, economical cost, reasonable internal force and comfortable traveling. During the cantilever construction of the prestressed concrete continuous rigid frame bridge, the beam axis shape of formed blocks can not be regulated during the subsequent constructions. To ensure the successful closure of the bridge, and make sure that the axis shape and the internal force of the bridge accord with the design request, construction control is of importance during the bridge construction.
Long-span continuous rigid-frame bridge construction control is cycle of construction, measurement, identification, amend, forecast and construction. In order to achieve the basic requirement of the control of the construction process, we can view of random optimal control system of structure state between theoretical and measured, the paper analyses the error, the adjustment, the forecast. The construction control of this bridge is realize through construction calculating, monitoring, back coupling and the preplanned target is reached at last.
On the based of fish hole changjiang river bridge for engineering examples, according to a long-span prestressed concrete continuous girder bridge construction control characteristics, and put forward the reasonable construction control scheme, established a comprehensive detection system. Used for the detection system, in construction process, successful collected the construction process and the main structure of the displacement control section and other data, after the stress in the construction process of the whole bridge construction supervision, guarantee the smooth fold the bridge, and in all the bridge construction is finished, the linear in bridge designed line after allowing range.
大跨径连续刚构桥的施工监控是施工、量测、识别、修正、预告和施工的循环过程。为了达到施工控制的基本要求,可针对施工过程组成随机最优控制系统,对结构状态理论值与实测值之间的误差进行分析、调整、预测。经过计算、预测、监测、评估,实现大桥线性和应力的不断调整和控制,达到预定的目标。
本文以鱼洞长江大桥为工程实例,根据大跨径预应力混凝土连续梁桥的施工控制特点,提出了合理的施工控制方案,建立了全面的监测系统,通过这一监测系统,在施工过程中,成功采集了施工过程中结构变位以及主要控制断面的应力、温度等数据,并结合相关实验数据,对全桥的施工过程进行成功了控制,保证了全桥的顺利合拢,实现了成桥设计线型和合理应力状态。
Continuous rigid frame is one of the main bridge of large-span prestressed concrete beam, combines mechanical characteristics between the continuous beam and T-shaped bridge girder, makes girder to be continuous beam body, and consolidate with Thin-wall piers. It is similar with continuous beam, and can make a league porous. Continuous rigid frame has been growing up rapidly with unique predominance of handy construction, economical cost, reasonable internal force and comfortable traveling. During the cantilever construction of the prestressed concrete continuous rigid frame bridge, the beam axis shape of formed blocks can not be regulated during the subsequent constructions. To ensure the successful closure of the bridge, and make sure that the axis shape and the internal force of the bridge accord with the design request, construction control is of importance during the bridge construction.
Long-span continuous rigid-frame bridge construction control is cycle of construction, measurement, identification, amend, forecast and construction. In order to achieve the basic requirement of the control of the construction process, we can view of random optimal control system of structure state between theoretical and measured, the paper analyses the error, the adjustment, the forecast. The construction control of this bridge is realize through construction calculating, monitoring, back coupling and the preplanned target is reached at last.
On the based of fish hole changjiang river bridge for engineering examples, according to a long-span prestressed concrete continuous girder bridge construction control characteristics, and put forward the reasonable construction control scheme, established a comprehensive detection system. Used for the detection system, in construction process, successful collected the construction process and the main structure of the displacement control section and other data, after the stress in the construction process of the whole bridge construction supervision, guarantee the smooth fold the bridge, and in all the bridge construction is finished, the linear in bridge designed line after allowing range.
引文
[1]范立础.预应力混凝土连续梁桥.北京:人民交通出版社,1988年2月
[2]向中富.桥梁施工控制技术.北京:人民交通出版社,2001
[3]王文涛.刚构一连续组合梁桥.北京:人民交通出版社,1997年4月
[4]范立础.桥梁工程(上册).北京:人民交通出版社,2001
[5]柳学发.大跨度连续刚构桥的应用和发展.铁道标准设计,1999年1期
[6]周军生,楼庄鸿.大跨径预应力混凝土连续刚构桥的现状和发展趋势.中国公路学报,2000年1月
[7]杨高中.连续刚构桥在我国的应用和发展.公路,1998(6)一(7)
[8]Gendy A.S,Generalized Thin-walled Beam Models for FlexureTorsion Analysis.Computer&Structure,1992
[9]Clark.G.The UK industry's proposals for improved specification and standards for post-tensionedConcrete bridge.In:Proc.of FIP symposium,London:1997.
[10]徐君兰.大跨度桥梁施工控制.北京:人民交通出版社,2000年8月
[11]黄建跃王树林.大跨度连续刚构桥施工主梁变形监测的必要性与方法.桥梁建设,2003
[12]曾德荣.鱼洞长江大桥正桥近期工程施工监控方案[J].重庆交通学院学报,2007.26(3):36-44
[13]曾德荣,曹哓川.桥梁分段悬臂挂篮施工支模标高控制计算[J].重庆交通学院学报,2001. 20(3): 32-35
[14]葛耀君.分段施工桥梁分析于控制.北京:人民交通出版社,2003
[15]徐君兰.大跨度桥梁施工控制.北京:人民交通出版社,2000
[16]刘来君.大跨径桥梁施工控制不确定因素分析:[硕士学位论文].西安:长安大学,2003.5
[17]黄建跃,王树林.大跨度连续刚构桥施工主梁变形监测的必要性与方法[J].桥梁建设,2003(1):48-51
[18]张厚民.江东大桥11跨连续梁施工控制技术研究[学位论文〕.北京交通大学,2008
[19]岳仁辉.大跨度刚构连续梁桥悬臂施一〔仿真分析与控制研究〔学位论文],北京交通大学,2008
[20]顾安邦,常英,乐云祥.大跨径预应力连续刚构桥施工控制的理论与方法.重庆交通学院学报,1999年12月
[21]李国平,刘健.大跨连续梁桥线形最优施工控制的理论与方法.华东公路,1992(2)
[22]段明德孙东泽.喜旧溪河大桥连续刚构挠度计算及拱度控制.铁道标准设计,1997年6一7期
[23]曹名旭.悬浇连续梁桥的挠度计算.南京市政,2001(1):7一9
[24]舒鑫.大跨度预应力混凝土连续刚构桥线形控制研究〔学位论文」.南京理工大学,2007
[25]张永水.大跨度预应力硅连续刚构桥施工误差调整的Kalman滤波法.重庆交通学院学报, 2000,19(3):13～15.
[26]乐云祥,王林,张文达等.武汉军山长江公路大桥施工控制.中国公路学会桥梁和结构工程学会2000年桥梁学术讨论会论文集,北京:人民交通出版社,2000年10月,272～280.
[27]熊小莉.GPS在桥梁控制测量中的应用.铁道建筑,2000年第6期
[28]刘胜春.大跨度预应力混凝土刚构桥施工控制技术研究.[硕士学位论文].武汉:武汉理工大学,2001.11
[29]于忠涛.连续刚构桥施工中标高及应变的监控.[硕士学位论文].大连:大连理工大学,2003.3
[30]周光伟.大跨预应力混凝土连续刚构桥施工控制研究及温度效应分析.[硕士学位论文].长沙:湖南大学,2003.6
[31]刘胜春.大跨度预应力混凝土刚构桥施工控制技术研究.[硕士学位论文].武汉:武汉理工大学,2001.11
[32]朱芳芳.连续刚构桥施工中的结构分析及其控制.[硕士学位论文].大连:大连理工大学,2003.10
[33]李传习,夏桂云.大跨径桥梁结构计算理论.北京:人民交通出版社, 2002
[34]范立础.预应力混凝土连续梁.北京:人民交通出版社,1988
[35]项海帆.高等桥梁结构理论.北京:人民交通出版社,2001
[36]程翔云.梁桥理论与计算.北京:人民交通出版社,1990
[37]包世华,周坚.薄壁杆件结构力学.北京:中国建筑工业出版社,1990
[38]杨春.预应力刚构桥在温度作用下的墩梁关系研究:[硕士学位论文].北京:北京工业大学,2001.6
[39]刘成龙,陈强,李振伟.温度对悬臂法施工桥梁长悬臂箱梁标高的影响及其对策.桥梁建设,2003(1):23-25.
[40]段明德.大跨度预应力混凝土桥梁施工的线形控制.铁道建筑技术,1996
[41]武芳文,方辉,赵雷.大跨度连续刚构桥施工阶段应力监测分析[J].铁道建筑,2005(9):6
[42]苏智.大跨度连续刚构桥的施工仿真计算和参数影响分析〔学位论文〕.长沙理工大学,2004
[43]向木生.连续刚构桥梁施一L控制分析.武汉理工大学学报2002,6(6):44一8
[44]陈苗.刚构一连续组合梁桥变形分析及控制「学位论文〕.长安大学,2006
[45]王家林,肖盛燮,吴国松,曾德荣.桥梁结构实时响应在线监测的简化分析方法.重庆交通学院学报,1999年12月
[46]J.Warwaruk,M.A.Sozen,C.P.Siess,Strength and Behavior in Flexureof Prestr e ssed Conc rete Bea ms,En gineering Experiment Station Bull.No.464,University of Illinois,1962
[47]Malcolm Fletcher.Orwell-Bridge:Largest Prestressed ConcreteSpan.Concrete International,Aug,1981,Vol.3,No.8
[48]P.Hajela,F.J.Soeiro.Structural Damage Detection Based on Static and Modal Analysis.AIAA J,28(6),1990
[49]M.Shinozuka,C.Yun,H.Imai.Identification of Llinear Structural Dynamic Systems,Journal of Engineering Mechanic Division,ASCE,108(EM6),1982
[50]Pickeet.J.Background to the UK Highways Agency's Moritorium on post-tentioned Grouted Construction.In:Proc.of FIP symposium,London:1997.
[2]向中富.桥梁施工控制技术.北京:人民交通出版社,2001
[3]王文涛.刚构一连续组合梁桥.北京:人民交通出版社,1997年4月
[4]范立础.桥梁工程(上册).北京:人民交通出版社,2001
[5]柳学发.大跨度连续刚构桥的应用和发展.铁道标准设计,1999年1期
[6]周军生,楼庄鸿.大跨径预应力混凝土连续刚构桥的现状和发展趋势.中国公路学报,2000年1月
[7]杨高中.连续刚构桥在我国的应用和发展.公路,1998(6)一(7)
[8]Gendy A.S,Generalized Thin-walled Beam Models for FlexureTorsion Analysis.Computer&Structure,1992
[9]Clark.G.The UK industry's proposals for improved specification and standards for post-tensionedConcrete bridge.In:Proc.of FIP symposium,London:1997.
[10]徐君兰.大跨度桥梁施工控制.北京:人民交通出版社,2000年8月
[11]黄建跃王树林.大跨度连续刚构桥施工主梁变形监测的必要性与方法.桥梁建设,2003
[12]曾德荣.鱼洞长江大桥正桥近期工程施工监控方案[J].重庆交通学院学报,2007.26(3):36-44
[13]曾德荣,曹哓川.桥梁分段悬臂挂篮施工支模标高控制计算[J].重庆交通学院学报,2001. 20(3): 32-35
[14]葛耀君.分段施工桥梁分析于控制.北京:人民交通出版社,2003
[15]徐君兰.大跨度桥梁施工控制.北京:人民交通出版社,2000
[16]刘来君.大跨径桥梁施工控制不确定因素分析:[硕士学位论文].西安:长安大学,2003.5
[17]黄建跃,王树林.大跨度连续刚构桥施工主梁变形监测的必要性与方法[J].桥梁建设,2003(1):48-51
[18]张厚民.江东大桥11跨连续梁施工控制技术研究[学位论文〕.北京交通大学,2008
[19]岳仁辉.大跨度刚构连续梁桥悬臂施一〔仿真分析与控制研究〔学位论文],北京交通大学,2008
[20]顾安邦,常英,乐云祥.大跨径预应力连续刚构桥施工控制的理论与方法.重庆交通学院学报,1999年12月
[21]李国平,刘健.大跨连续梁桥线形最优施工控制的理论与方法.华东公路,1992(2)
[22]段明德孙东泽.喜旧溪河大桥连续刚构挠度计算及拱度控制.铁道标准设计,1997年6一7期
[23]曹名旭.悬浇连续梁桥的挠度计算.南京市政,2001(1):7一9
[24]舒鑫.大跨度预应力混凝土连续刚构桥线形控制研究〔学位论文」.南京理工大学,2007
[25]张永水.大跨度预应力硅连续刚构桥施工误差调整的Kalman滤波法.重庆交通学院学报, 2000,19(3):13～15.
[26]乐云祥,王林,张文达等.武汉军山长江公路大桥施工控制.中国公路学会桥梁和结构工程学会2000年桥梁学术讨论会论文集,北京:人民交通出版社,2000年10月,272～280.
[27]熊小莉.GPS在桥梁控制测量中的应用.铁道建筑,2000年第6期
[28]刘胜春.大跨度预应力混凝土刚构桥施工控制技术研究.[硕士学位论文].武汉:武汉理工大学,2001.11
[29]于忠涛.连续刚构桥施工中标高及应变的监控.[硕士学位论文].大连:大连理工大学,2003.3
[30]周光伟.大跨预应力混凝土连续刚构桥施工控制研究及温度效应分析.[硕士学位论文].长沙:湖南大学,2003.6
[31]刘胜春.大跨度预应力混凝土刚构桥施工控制技术研究.[硕士学位论文].武汉:武汉理工大学,2001.11
[32]朱芳芳.连续刚构桥施工中的结构分析及其控制.[硕士学位论文].大连:大连理工大学,2003.10
[33]李传习,夏桂云.大跨径桥梁结构计算理论.北京:人民交通出版社, 2002
[34]范立础.预应力混凝土连续梁.北京:人民交通出版社,1988
[35]项海帆.高等桥梁结构理论.北京:人民交通出版社,2001
[36]程翔云.梁桥理论与计算.北京:人民交通出版社,1990
[37]包世华,周坚.薄壁杆件结构力学.北京:中国建筑工业出版社,1990
[38]杨春.预应力刚构桥在温度作用下的墩梁关系研究:[硕士学位论文].北京:北京工业大学,2001.6
[39]刘成龙,陈强,李振伟.温度对悬臂法施工桥梁长悬臂箱梁标高的影响及其对策.桥梁建设,2003(1):23-25.
[40]段明德.大跨度预应力混凝土桥梁施工的线形控制.铁道建筑技术,1996
[41]武芳文,方辉,赵雷.大跨度连续刚构桥施工阶段应力监测分析[J].铁道建筑,2005(9):6
[42]苏智.大跨度连续刚构桥的施工仿真计算和参数影响分析〔学位论文〕.长沙理工大学,2004
[43]向木生.连续刚构桥梁施一L控制分析.武汉理工大学学报2002,6(6):44一8
[44]陈苗.刚构一连续组合梁桥变形分析及控制「学位论文〕.长安大学,2006
[45]王家林,肖盛燮,吴国松,曾德荣.桥梁结构实时响应在线监测的简化分析方法.重庆交通学院学报,1999年12月
[46]J.Warwaruk,M.A.Sozen,C.P.Siess,Strength and Behavior in Flexureof Prestr e ssed Conc rete Bea ms,En gineering Experiment Station Bull.No.464,University of Illinois,1962
[47]Malcolm Fletcher.Orwell-Bridge:Largest Prestressed ConcreteSpan.Concrete International,Aug,1981,Vol.3,No.8
[48]P.Hajela,F.J.Soeiro.Structural Damage Detection Based on Static and Modal Analysis.AIAA J,28(6),1990
[49]M.Shinozuka,C.Yun,H.Imai.Identification of Llinear Structural Dynamic Systems,Journal of Engineering Mechanic Division,ASCE,108(EM6),1982
[50]Pickeet.J.Background to the UK Highways Agency's Moritorium on post-tentioned Grouted Construction.In:Proc.of FIP symposium,London:1997.