斜拉桥前支点挂篮施工过程模拟分析
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摘要
为明确前支点挂篮施工斜拉桥施工过程中挂篮变形及受力状态,针对影响施工控制精度的节段施工中间张拉过程与前支点挂篮密切相关的问题,基于前支点挂篮受力分析及MIDAS CIVIL有限元模拟,提出中间张拉索力计算公式及挂篮参与整体受力变形的9步施工过程模拟分析方法,并与实际工程中结构受力状态和变形状态进行对比分析.结果表明,根据这种施工过程模拟分析得到的施工预拱度、中间张拉过程理论高程及内力状态均满足施工控制精度的要求,可用于指导实际工程.
In order to determinate the deformation and stress state of the fore fulcra form travellers during the construction stage of cable-stayed bridges,and considering the fact that the tensioning process during the construction stage,which influences the construction control precision,is closely related to the fore fulcra form travellers,we put forward the formula for cable forces calculation and a nine-step construction simulation analysis method based on mechanical analysis and finite element analysis with MIDAS CIVIL of fore fulcra form travellers. We take the travellers bear force and deformation as a part of the whole structure,and then compare the stress state and deformation state in the model with those in practical engineering. The results show that the construction camber,theoretical evaluation and internal force state in tensioning process obtained by this construction simulation analysis method meet the accuracy requirement in construction control. The method can be used to guide practical engineering.
In order to determinate the deformation and stress state of the fore fulcra form travellers during the construction stage of cable-stayed bridges,and considering the fact that the tensioning process during the construction stage,which influences the construction control precision,is closely related to the fore fulcra form travellers,we put forward the formula for cable forces calculation and a nine-step construction simulation analysis method based on mechanical analysis and finite element analysis with MIDAS CIVIL of fore fulcra form travellers. We take the travellers bear force and deformation as a part of the whole structure,and then compare the stress state and deformation state in the model with those in practical engineering. The results show that the construction camber,theoretical evaluation and internal force state in tensioning process obtained by this construction simulation analysis method meet the accuracy requirement in construction control. The method can be used to guide practical engineering.
引文
[1]林元培.斜拉桥[M].北京:人民交通出版社,2004:1-4.Lin Yuanpei.Cabel-stayed bridge[M].Beijing:China Communications Press,2014:1-4.(in Chinese)
[2]殷涛,胡成,曹爱虎.斜拉桥牵索挂篮施工模拟计算与分析研究[J].安徽建筑工业学院学报自然科学版,2013,21(6):10-13.Yin Tao,Hu Cheng,Cao Aihu.Simulation calculation and analysis research of cable-stayed bridge constructed by cable-supported form traveler[J].Journal of Anhui Institute of Architecture Natural Science,2013,21(6):10-13.(in Chinese)
[3]韦剑.单索面斜拉桥前支点挂篮静力性能研究[D].广州:华南理工大学,2013:1-7.Wei Jian.A study of static behavior of cable-support form travelers for a single plane cable-stayed bridge[D].Guangzhou:South China University of Technology,2013:1-7.(in Chinese)
[4]刘国坤,颜东煌,涂光亚,等.斜拉桥前支点挂篮主梁混凝土浇筑上下游不同步对施工控制的影响[J].中外公路,2016,36(1):86-90.Liu Guokun,Yan Donghuang,Tu Guangya,et al.Study to the influence of out of step concreting of upstream-downstream to cable-stayed bridge constructing by form travelers with fore-fulcra[J].Journal of China&Foreign Highway,2016,36(1):86-90.(in Chinese)
[5]李传习,夏桂云,刘玉兰.牵索式挂篮前支点斜拉索索力范围的确定[J].桥梁建设,2001,31(4):8-10.Li Chuanxi,Xia Guiyun,Liu Yulan.Determination of the scope of cable force at the point of fore-support for the cable-supported form traveler[J].Bridge Construction,2001,31(4):8-10.(in Chinese)
[6]张玉平,胡火全,李传习,等.带顶升机构前支点挂篮斜拉索初张拉中间索力的确定方法[J].长沙理工大学学报自然科学版,2016,13(2):55-60.Zhang Yuping,Hu Huoquan,Li Chuanxi,et al.Method for determining the initial tensioning cable-stayed middle cable-fore using travelling carriage of fore-fulcra with lifting mechanism[J].Journal of Changsha University of Science and Technology Natural Science,2016,13(2):55-60.(in Chinese)
[7]姜竹生,孙胜江,冷雪浩.五河口斜拉桥施工控制中间索力的确定方法[J].公路,2006,51:35-38.Jiang Zhusheng,Sun Shengjiang,Leng Xuehao.Method of determining middle cable force force in construction control of Wuhukou cable-stayed bridge[J].Highway,2006,51:35-38.(in Chinese)
[8]涂光亚,戴政,颜东煌,等.无后锚前支点挂篮施工过程受力分析研究[J].中外公路,2013,33(2):122-125.Tu Guangya,Dai Zheng,Yan Donghuang,et al.Force state analysis study of cable-support form traveler without back anchor[J].Journal of China&Foreign Highway,2013,33(2):122-125.(in Chinese)
[9]李学文,田仲初,颜东煌.混凝土斜拉桥采用前支点挂篮悬臂浇筑施工的中间索力确定方法[J].公路交通科技,2002,19(5):77-79.Li Xuewen,Tian Zhongchu,Yan Donghuang.Determination of the interim cable forces of cable-stayed bridges with concrete girders during the cantilever cast-place construction using form travelers with fore-fulcra[J].Journal of Highway and Transportation Research and Development,2002,19(5):77-79.(in Chinese)
[10]程雷.斜拉桥前支点挂篮变形分析与刚度修正[J].公路,2013,58(2):70-74.Cheng Lei.Displacement analysis and stiffness revising of form travelers with fore-fulcra using in cable-stayed bridge[J].Highway,2013,58(2):70-74.(in Chinese)
[11]刘元炜,钱叶葵.不同类型牵索挂篮比较[J].交通标准化,2004,32(5):29-32.Liu Yuanwei,Qian Yekui.Contrast of different kinds of cable-supported form travelers[J].Communications Standardization,2004,32(5):29-32.(in Chinese)
[12]吴运宏,岳青,江盠,等.混凝土斜拉桥前支点挂篮施工控制[J].现代交通技术,2012,9(5):51-53.Wu Yunhong,Yue Qing,Jiang Yong,et al.Construction control for form travelers with fore-fulcra of cable-stayed bridges with concrete girders[J].Modern Transportation Technology,2012,9(5):51-53.(in Chinese)
[13]周孟波.斜拉桥手册[M].北京:人民交通出版社,2004:118-120.Zhou Mengbo.Cable-stayed bridge handbook[M].Beijing:China Communications Press,2004:118-120.(in Chinese)
[14]苗林.辰塔大桥主梁前支点挂篮压载试验与仿真计算[J].建筑施工,2015,37(5):613-615.Miao Lin.Ballast test and simulation calculation of frontsupport-point hanging basket for main girder of Chenta bridge[J].Building Construction,2015,37(5):613-615.(in Chinese)
[15]肖向荣.前支点挂篮结构优化设计与仿真分析[J].中外公路,2016,36(3):139-143.Xiao Xiangrong.Structure optimization design and simulation analysis to form travelers with fore-fulcra[J].Journal of China&Foreign Highway,2016,36(3):139-143.(in Chinese)
[16]王红光.单索面混凝土斜拉桥牵索挂篮设计与施工工艺研究[D].郑州:郑州工业大学,2014:11-15.Wang Hongguang.Design and construction technology research of guyed travelers of concrete cable-stayed beidge with single cable[D].Zhengzhou:Zhengzhou University of Technology,2014:11-15.(in Chinese)
[17]冯浩,钟启凯,刘中涛,等.千斤顶贝雷反力梁在牵索挂篮预压中的应用[J].桥梁建设,2012,42(s1):121-125.Feng Hao,Zhong Qikai,Liu Zhongtao,et al.Application of jacks and reaction bailey trusses to preloading of guyed traveling carriages[J].Bridge Construction,2012,42(s1):121-125.(in Chinese)
[18]焦梦莹.独塔斜拉桥牵索挂篮有限元分析[D].合肥:合肥工业大学,2014:36-80.Jiao Mengying.Finite element analysis of link-hanging basket of single tower cable-stayed bridge[D].Hefei:Hefei University of Technology,2014:36-80.(in Chinese)
[19]谢理民.宽幅斜拉桥牵索挂篮静载试验有限元分析[J].世界桥梁,2013,41(2):27-30.Xie Limin.Finite element analysis of static load test of guyed form traveler for cable-stayed bridge with wide decl[J].World Bridges,2013,41(2):27-30.(in Chinese)
[20]刘国坤.预应力混凝土斜拉桥施工控制研究[D].昆明:昆明理工大学,2013:14-28.Liu Guokun.Research on prestressed concrete cable-stayed bridge construction control[D].Kunming:Kunming University of Science&Technology,2013:14-28.(in Chinese)
[21]张海翔.大跨预应力混凝土斜拉桥施工控制分析[D].西安:西安建筑科技大学,2013:21-32.Zhang Haixiang.Large-span prestressed concrete cablestayed bridge construction control analysis[D].Xi'an:Xi'an University of Architecture and Technology,2013:21-32.(in Chinese)
[22]樊小林.预应力混凝土矮塔斜拉桥施工控制与结构参数敏感性分析[D].西安:长安大学,2014:26-40.Fan Xiaolin.Analysis of prestressed concrete extradosed cable-stayed bridge construction control and structure parameters sensitivity[D].Xi'an:Chang'an University,2014:26-40.(in Chinese)
[23]简朴.重庆梅溪河斜拉桥施工监控技术研究[D].重庆:重庆交通大学,2013:18-41.Jian Pu.Study of construction monitoring technique for Chongqing Meixihe cable-stayed bridge[D].Chongqing:Chongqing Jiaotong University,2013:18-41.(in Chinese)
[24]李强.大跨度斜拉桥施工控制仿真模拟分析[D].武汉:湖北工业大学,2012:14-24.Li Qiang.Simulation and analysis on construction control of long-span cable-stayed bridge[D].Wuhan:Hubei University of Technology,2012:14-24.(in Chinese)
[25]JTG/T D65-01-2007公路斜拉桥设计细则[S].JTG/T D65-01-2007 Guidelines for design of highway cable-stayed bridge[S].(in Chinese)
[2]殷涛,胡成,曹爱虎.斜拉桥牵索挂篮施工模拟计算与分析研究[J].安徽建筑工业学院学报自然科学版,2013,21(6):10-13.Yin Tao,Hu Cheng,Cao Aihu.Simulation calculation and analysis research of cable-stayed bridge constructed by cable-supported form traveler[J].Journal of Anhui Institute of Architecture Natural Science,2013,21(6):10-13.(in Chinese)
[3]韦剑.单索面斜拉桥前支点挂篮静力性能研究[D].广州:华南理工大学,2013:1-7.Wei Jian.A study of static behavior of cable-support form travelers for a single plane cable-stayed bridge[D].Guangzhou:South China University of Technology,2013:1-7.(in Chinese)
[4]刘国坤,颜东煌,涂光亚,等.斜拉桥前支点挂篮主梁混凝土浇筑上下游不同步对施工控制的影响[J].中外公路,2016,36(1):86-90.Liu Guokun,Yan Donghuang,Tu Guangya,et al.Study to the influence of out of step concreting of upstream-downstream to cable-stayed bridge constructing by form travelers with fore-fulcra[J].Journal of China&Foreign Highway,2016,36(1):86-90.(in Chinese)
[5]李传习,夏桂云,刘玉兰.牵索式挂篮前支点斜拉索索力范围的确定[J].桥梁建设,2001,31(4):8-10.Li Chuanxi,Xia Guiyun,Liu Yulan.Determination of the scope of cable force at the point of fore-support for the cable-supported form traveler[J].Bridge Construction,2001,31(4):8-10.(in Chinese)
[6]张玉平,胡火全,李传习,等.带顶升机构前支点挂篮斜拉索初张拉中间索力的确定方法[J].长沙理工大学学报自然科学版,2016,13(2):55-60.Zhang Yuping,Hu Huoquan,Li Chuanxi,et al.Method for determining the initial tensioning cable-stayed middle cable-fore using travelling carriage of fore-fulcra with lifting mechanism[J].Journal of Changsha University of Science and Technology Natural Science,2016,13(2):55-60.(in Chinese)
[7]姜竹生,孙胜江,冷雪浩.五河口斜拉桥施工控制中间索力的确定方法[J].公路,2006,51:35-38.Jiang Zhusheng,Sun Shengjiang,Leng Xuehao.Method of determining middle cable force force in construction control of Wuhukou cable-stayed bridge[J].Highway,2006,51:35-38.(in Chinese)
[8]涂光亚,戴政,颜东煌,等.无后锚前支点挂篮施工过程受力分析研究[J].中外公路,2013,33(2):122-125.Tu Guangya,Dai Zheng,Yan Donghuang,et al.Force state analysis study of cable-support form traveler without back anchor[J].Journal of China&Foreign Highway,2013,33(2):122-125.(in Chinese)
[9]李学文,田仲初,颜东煌.混凝土斜拉桥采用前支点挂篮悬臂浇筑施工的中间索力确定方法[J].公路交通科技,2002,19(5):77-79.Li Xuewen,Tian Zhongchu,Yan Donghuang.Determination of the interim cable forces of cable-stayed bridges with concrete girders during the cantilever cast-place construction using form travelers with fore-fulcra[J].Journal of Highway and Transportation Research and Development,2002,19(5):77-79.(in Chinese)
[10]程雷.斜拉桥前支点挂篮变形分析与刚度修正[J].公路,2013,58(2):70-74.Cheng Lei.Displacement analysis and stiffness revising of form travelers with fore-fulcra using in cable-stayed bridge[J].Highway,2013,58(2):70-74.(in Chinese)
[11]刘元炜,钱叶葵.不同类型牵索挂篮比较[J].交通标准化,2004,32(5):29-32.Liu Yuanwei,Qian Yekui.Contrast of different kinds of cable-supported form travelers[J].Communications Standardization,2004,32(5):29-32.(in Chinese)
[12]吴运宏,岳青,江盠,等.混凝土斜拉桥前支点挂篮施工控制[J].现代交通技术,2012,9(5):51-53.Wu Yunhong,Yue Qing,Jiang Yong,et al.Construction control for form travelers with fore-fulcra of cable-stayed bridges with concrete girders[J].Modern Transportation Technology,2012,9(5):51-53.(in Chinese)
[13]周孟波.斜拉桥手册[M].北京:人民交通出版社,2004:118-120.Zhou Mengbo.Cable-stayed bridge handbook[M].Beijing:China Communications Press,2004:118-120.(in Chinese)
[14]苗林.辰塔大桥主梁前支点挂篮压载试验与仿真计算[J].建筑施工,2015,37(5):613-615.Miao Lin.Ballast test and simulation calculation of frontsupport-point hanging basket for main girder of Chenta bridge[J].Building Construction,2015,37(5):613-615.(in Chinese)
[15]肖向荣.前支点挂篮结构优化设计与仿真分析[J].中外公路,2016,36(3):139-143.Xiao Xiangrong.Structure optimization design and simulation analysis to form travelers with fore-fulcra[J].Journal of China&Foreign Highway,2016,36(3):139-143.(in Chinese)
[16]王红光.单索面混凝土斜拉桥牵索挂篮设计与施工工艺研究[D].郑州:郑州工业大学,2014:11-15.Wang Hongguang.Design and construction technology research of guyed travelers of concrete cable-stayed beidge with single cable[D].Zhengzhou:Zhengzhou University of Technology,2014:11-15.(in Chinese)
[17]冯浩,钟启凯,刘中涛,等.千斤顶贝雷反力梁在牵索挂篮预压中的应用[J].桥梁建设,2012,42(s1):121-125.Feng Hao,Zhong Qikai,Liu Zhongtao,et al.Application of jacks and reaction bailey trusses to preloading of guyed traveling carriages[J].Bridge Construction,2012,42(s1):121-125.(in Chinese)
[18]焦梦莹.独塔斜拉桥牵索挂篮有限元分析[D].合肥:合肥工业大学,2014:36-80.Jiao Mengying.Finite element analysis of link-hanging basket of single tower cable-stayed bridge[D].Hefei:Hefei University of Technology,2014:36-80.(in Chinese)
[19]谢理民.宽幅斜拉桥牵索挂篮静载试验有限元分析[J].世界桥梁,2013,41(2):27-30.Xie Limin.Finite element analysis of static load test of guyed form traveler for cable-stayed bridge with wide decl[J].World Bridges,2013,41(2):27-30.(in Chinese)
[20]刘国坤.预应力混凝土斜拉桥施工控制研究[D].昆明:昆明理工大学,2013:14-28.Liu Guokun.Research on prestressed concrete cable-stayed bridge construction control[D].Kunming:Kunming University of Science&Technology,2013:14-28.(in Chinese)
[21]张海翔.大跨预应力混凝土斜拉桥施工控制分析[D].西安:西安建筑科技大学,2013:21-32.Zhang Haixiang.Large-span prestressed concrete cablestayed bridge construction control analysis[D].Xi'an:Xi'an University of Architecture and Technology,2013:21-32.(in Chinese)
[22]樊小林.预应力混凝土矮塔斜拉桥施工控制与结构参数敏感性分析[D].西安:长安大学,2014:26-40.Fan Xiaolin.Analysis of prestressed concrete extradosed cable-stayed bridge construction control and structure parameters sensitivity[D].Xi'an:Chang'an University,2014:26-40.(in Chinese)
[23]简朴.重庆梅溪河斜拉桥施工监控技术研究[D].重庆:重庆交通大学,2013:18-41.Jian Pu.Study of construction monitoring technique for Chongqing Meixihe cable-stayed bridge[D].Chongqing:Chongqing Jiaotong University,2013:18-41.(in Chinese)
[24]李强.大跨度斜拉桥施工控制仿真模拟分析[D].武汉:湖北工业大学,2012:14-24.Li Qiang.Simulation and analysis on construction control of long-span cable-stayed bridge[D].Wuhan:Hubei University of Technology,2012:14-24.(in Chinese)
[25]JTG/T D65-01-2007公路斜拉桥设计细则[S].JTG/T D65-01-2007 Guidelines for design of highway cable-stayed bridge[S].(in Chinese)