《桥梁建设》
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《世界桥梁》
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《桥梁检测与加固》
qljcjg@yeah.net
明州大桥钢桥面铺装层ERS施工技术
杨崇国1，刘小勇2
（1.中铁大桥局集团桥科院有限公司，湖北 武汉 430034；2.中交二航局第二工程有限公司，重庆 400023）
摘 要：为了解决钢桥面板与铺装层间防水、抗滑移、高温稳定等问题，宁波明州大桥主桥钢桥面板铺装层采用树脂沥青组合体系（ERS）桥面铺装技术，桥面铺装结构组成为40 mm高粘改性沥青(SMA-13)＋改性沥青防水粘结层＋25 mm环氧沥青混凝土(RA05)＋环氧粘结碎石层（EBCL）。通过对钢桥面板喷砂除锈，达到Sa2.5级；按比例混和EBCL胶料，分2层涂刷，同时洒布碎石；摊铺RA05混合料，并用胶轮压路机碾压，在其固化后洒布防水粘结层；摊铺SMA-13沥青混凝土层，采用钢轮+胶轮+钢轮的组合方式碾压，确保了ERS施工质量，桥面铺装效果良好。
关键词：拱桥；钢桥面；铺装；树脂沥青组合体系；桥梁施工
中图分类号： U448.22；U443.33 文献标志码： A
Construction Techniques for ERS of Steel Deck Surfacing Layer of Mingzhou Bridge
YANG Chongguo1, LIU Xiaoyong2
(1. Bridge Science Research Institute Ltd., China Railway Major Bridge Engineering
Group, Wuhan 430034, China; 2. The Second Engineering Co., Ltd., CCCC Second
Harbor Engineering Co., Ltd., Chongqing 400023, China)
Abstract: To cope with the problems of the waterproof, slip resistance and high temperature stability of deck surfacing layer with steel deck plate, the deck surfacing technique of epoxy resin asphalt system (ERS) was applied to the steel deck surfacing layer of the main bridge of the Mingzhou Bridge in Ningbo. The structure of the surfacing layer of the bridge comprised 40 mm high viscosity modified asphalt (stone mastic asphalt, SMA13)＋waterproof binding layer of the modified asphalt＋25 mm epoxy resin asphalt concrete (RA05)＋epoxy bond crushed stone layer (EBCL). After the steel deck plates of the bridge were sand blasted to the rust removal level of Sa2.5, the binder for the EBCL was blended according to its proportion and was then brushed onto the deck plates in two layers. At the same time, the crushed stones were spread, the RA05 was laid and compacted by the rubber wheel road roller. When these surfacing materials were set, the SMA13 was laid and was compacted by the combined way of the steel wheel＋rubber wheel＋steel wheel. With the technique, the construction quality of the ERS was guaranteed and the sound effect of the deck surfacing of the bridge was achieved.
Key words: arch bridge; steel deck; surfacing; epoxy resin asphalt system; bridge construction
清水浦大桥主要施工技术
刘 晟，李英俊，张 利，方 震
（中交第一公路工程局有限公司，北京 100024）
摘 要：清水浦大桥为主跨468 m的连体桥塔分幅组合梁斜拉桥。为保证桥塔桩基施工质量，根据不同深度和地层，采用不同成孔工艺，对钻杆特性、减压钻进、沉渣厚度等进行控制，使其桩基倾斜度小于1/200、沉渣厚度不大于15 cm。为保证防洪大堤及基坑安全，采用刚度控制设计方法，在钢管桩外设水泥土搅拌桩止水，并采用控制拔桩速度、回填砂等措施，确保基坑顺利度过洪期。边跨梁段采用桥式起重机安装，桥塔区梁段采用桥式起重机提升，顺桥向滑移就位；中跨梁段采用悬拼吊机安装；在温度变化≤5 ℃时进行合龙。
关键词：斜拉桥；组合梁；基础；主梁；合龙；桥梁施工
中图分类号： U448.227；U445.4 文献标志码： A
Principal Construction Techniques of Qingshuipu Bridge
LIU Cheng, LI Yingjun, ZHANG Li, FANG Zhen
(CCCC First Highway Engineering Co., Ltd., Beijing 100024, China)
Abstract: The Qingshuipu Bridge is a cablestayed bridge with jointed pylons and separated composite girders and with a main span 468 m. To ensure the construction quality of the pile foundations of the pylons, the different boring construction technologies were employed in the light of the different stratum depth and conditions and the boring stem characteristics, pressurereducing boring and slag sediment thickness were well controlled to keep the inclination ratios of the piles less than 1/200 and the slag sediment not thicker than 15 cm. Also to ensure the safety of the flood dyke and foundation pits, the rigidity control method was applied in the design, the cement piles were set outside the steel pipe piles to stop water from coming in and the measures of controlling the speed of extracting piles and backfilling sand were taken to help the construction of the foundation pits to safely tide over the flood period. For construction of the superstructure of the bridge, the girder segments of the side spans were erected by the bridge cranes and the segments close to the pylons were firstly lifted by the bridge cranes and then slid in place in the longitudinal direction of the bridge. The segments of the central span were cantileveredly erected by the deck cranes and the girder of the central span was closed in the time of temperature variation ≤5 ℃.
Key words: cablestayed bridge; composite girder; foundation; main girder; closing, bridge construction
黄冈公铁两用长江大桥施工质量技术风险分析及控制
于春孝
（湖北城际铁路有限责任公司，湖北 武汉 430060）
摘 要：黄冈公铁两用长江大桥技术含量高、施工难度大，在施工过程中，技术风险突出。为控制该桥的施工风险，保障施工安全，从施工过程仿真计算、钢桁梁及斜拉索的制造及施工技术方案3个方面分析该桥施工质量技术风险。根据风险分析，论述了技术风险控制手段、特点，有针对性地提出大桥施工期间技术风险控制策略及具体方法。结果表明，该桥在施工过程中的技术风险能够得到有效控制。
关键词：斜拉桥；钢桁梁；技术风险；风险分析；施工监控；风险控制
中图分类号： U448.27 文献标志码： A
Analysis and Control of Construction Quality Technical Risk
of Huanggang Changjiang River RailcumRoad Bridge
YU Chunxiao
(Hubei Intercity Railway Co., Ltd., Wuhan 430060, China)
Abstract: The technical content of Huanggang Changjiang River RailcumRoad Bridge is high, the construction difficulty of the bridge is great and in the construction process, the construction quality technical risk is therefore prominent. To control the technical risk and to guarantee the construction safety, the technical risk was analyzed from three aspects of the construction process simulation calculation, steel truss girder and stay cable fabrication and construction technique schemes. On the basis of the analysis, the control means and characteristics of the technical risk were elaborated and the control strategy and specific ways of the technical risk of the bridge in the construction process were targetedly put forward. Practice proves that the technical risk in the construction process can be effectively controlled.
Key words: cablestayed bridge; steel truss girder; technical risk; risk analysis; construction monitoring and control; risk control
佛山石湾大桥主桥施工技术
周爱国
（佛山市路桥建设有限公司，广东 佛山 528313）
摘 要：佛山石湾大桥主桥为(90.5+150+90.5) m的三跨连续矮塔斜拉桥。为避免受汛期的影响及保护水环境，承台及桩基础施工采取钢管桩+贝雷梁作为水上施工平台，待钻孔桩施工后，再拆除施工平台、插打单壁钢板桩围堰，在基坑开挖时选择干封法进行封底。主梁0号块采用预埋托架施工，1～16号块采用挂篮逐段悬臂现浇施工，合龙段采用挂篮作为吊挂、按先边跨后中跨的顺序进行施工。
关键词：矮塔斜拉桥；箱形梁；基础施工；悬臂施工；桥梁施工
中图分类号： U448.27；U445.4 文献标志码： A
Construction Techniques for Main Bridge
of Shiwan Bridge in Foshan City
ZHOU Aiguo
(Foshan Road and Bridge Construction Co., Ltd., Foshan 528313, China)
Abstract: The main bridge of the Shiwan Bridge in Foshan City is a threespan continuous extradosed bridge with span arrangement (90.5＋150＋90.5 ) m. To avoid the flood period influence and to protect the water environment at the bridge site, the construction of the piles and pile caps of the bridge was carried out on the working platforms formed by the steel pipe piles＋Bailey trusses. After the construction of the bored piles was completed, the working platforms were removed and the singlewall steel sheet piles were inserted and driven. At the time the foundation pits were excavated, the bases of the steel sheet pile cofferdams were sealed in dry condition. The segments No.0 of the main girder were constructed on the embedded brackets, the segments No.1~16 were constructed segment by segment with the form travelers by the cantilever castinsitu method and the closure segments were constructed in the sequence of the segments for the side spans first and the segment for the central span late, using the form travelers as the suspension platforms.
Key words: extradosed bridge; box girder; foundation construction; cantilever construction; bridge construction
葑溪大桥施工控制
孙小猛1,2，闫子才1，朱大勇2，赵 飞3
(1.中铁四局博士后工作站，安徽 合肥 230023； 2.合肥工业大学土木与水利工程学院博士后流动站，
安徽 合肥 230009； 3.中铁四局第二工程有限公司，江苏 苏州 215131)
摘 要：为了保证葑溪大桥的施工安全和质量，根据预应力混凝土斜拉桥悬臂浇筑和支架现浇非对称施工特点，建立施工控制计算模型，探讨影响主梁线形及斜拉索索力的因素，并制定相应控制措施，对主梁线形、内力、索力、牵索挂篮应力和变形进行有效监控。施工控制结果表明：成桥状态下，主桥轴线实测标高、桥梁应力状态、成桥索力均满足设计要求，挂篮在施工过程中的应力状态及变形情况与试验变化趋势基本一致。
关键词：斜拉桥；施工监控；悬臂灌筑架桥；支架；应力；变形
中图分类号： U448.27；U445.1 文献标志码： A
Construction Control of Fengxi Bridge
SUN Xiaomeng1,2, YAN Zicai1, ZHU Dayong2, ZHAO Fei3
(1. PostDoctoral Working Station, China Railway Siju Civil Engineering Group Co., Ltd., Hefei 230023, China; 2. PostDoctoral Research Station, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; 3. The 2nd Engineering Co., Ltd., China Railway Siju Civil Engineering Group, Suzhou 215131, China)
Abstract: To ensure the construction safety and quality of the Fengxi Bridge, a prestressed concrete cablestayed bridge and in the light of the asymmetric construction characteristics of cantilever casting and casting of the bridge on scaffolding, a calculation model for the construction control of the bridge was established, the factors having influences on the geometric shape of the main girder and on the stay cable forces of the bridge were studied and the corresponding measures were formulated for the effective monitoring and control of the geometric shape and internal forces of the main girder, the stay cable forces and the stress and deformation of the guyed form travelers. The results of the construction control show that in the state of the completed bridge, the measured elevation of the axis of the main bridge, the stress conditions and the stay cable forces can all accord with the design requirements and the stress conditions and deformation of the guyed form travelers in the construction process are basically identical to the change tendency of the stress and deformation in the testing.
Key words: cablestayed bridge; construction monitoring and control; cantilever casting of bridge; scaffolding; stress; deformation
高速铁路48 m/1 600 t下承式造桥机结构总体设计
贾东荣
（中铁上海工程局第一工程有限公司，安徽 芜湖 241000）
摘 要：大（同）西（安）客运专线铁路晋陕黄河特大桥48 m简支箱梁预制节段采用下承式造桥机施工。造桥机主要由主结构（主框架、导梁）、主支承（前支腿、中支撑、后支腿）、托架台车倒运机构、节段支撑横梁、起重系统、湿接缝外模板、运梁车系统、液压系统、电气系统等组成，其中主框架是造桥机施工荷载的承重结构。采用ANSYS建立造桥机模型，对满跨加载、导梁最大前悬臂、倒运支腿、过孔工况下造桥机受力、变形及墩旁托架受力进行分析，分析结果表明造桥机组成构件受力及挠度变形均满足使用要求。
关键词：高速铁路；铁路桥；简支梁；箱形梁；下承式；造桥机；总体设计
中图分类号： U445.36；U445.468 文献标志码： A
Overall Design of 48 m/1 600 t Through Overhead Launching
Gantry for Construction of a HighSpeed Railway Bridge
JIA Dongrong
(The 1st Engineering Co., Ltd., China Railway Shanghai Civil Engineering Group, Wuhu 241000, China)
Abstract: The precast segments of the 48m span simplysupported box girders of Jinshan Huanghe River Bridge on DatongXi′an Passenger Dedicated Railway were erected by the through overhead launching gantry. The gantry is mainly composed of the principal structures (the main frame and launching nose), main supports (the front, middle and rear support legs), brackets, trolley shifting mechanism, segment support cross beams, hoisting system, wet joint external formwork, girder carrier system, hydraulic system and electric system, of which the main frame of the gantry is the construction load carrying structure. The models for the gantry were set up by the ANSYS, the force conditions, deformation of the gantry and the force conditions of the pierside brackets under the load cases of loading on a full span, the longest cantilever of the launching nose and shifting of the support legs and traveling of the gantry to next span were analyzed. The results of the analysis show that the force conditions and deflection deformation of different components of the gantry can satisfy the requirements for service.
Key words: highspeed railway; railway bridge; simplysupported girder; box girder; through; overhead launching gantry; overall design
大直径钢管混凝土桩的设计、施工及试验
苏 杨，高宗余
（中铁大桥勘测设计院有限公司，湖北 武汉 430056）
摘 要：为研究大直径钢管混凝土桩在桥梁工程中的应用，以某预应力混凝土连续刚构桥为背景，分析该类桩基的设计、施工及试验。该桥采用高桩承台钻孔桩基础（由4根直径为1.8 m的钢管混凝土嵌岩柱桩构成），根据桩基连接构造的合理设计原则，钢管混凝土桩与承台采用环形牛腿连接，与基岩采用双套管连接。钢管混凝土桩采用栽桩法和桩侧填石压浆工艺施工。通过对桩顶悬臂端施加水平荷载进行单桩抗推刚度试验，结果证明了该桥钢管混凝土桩是安全可靠的。
关键词：钢管混凝土桩；嵌岩桩；抗推刚度；设计；施工；试验
中图分类号： U443.15 文献标志码： A
Design, Construction and Testing of Large
Diameter ConcreteFilled Steel Tube Piles
SU Yang, GAO Zongyu
(China Railway Major Bridge Reconnaissance & Design
Group Co., Ltd., Wuhan 430056, China)
Abstract: To study the application of large diameter concretefilled steel tube (CFST) piles to bridge engineering, a prestressed concrete continuous rigidframe bridge was cited as an example, the design, construction and testing of the piles of such type were analyzed. The bridge employed the bored pile foundations (4 rocksocketed CFST column plies, each being 1.8 m in diameter, for a foundation) with elevated pile caps. In accordance with the principle of rational design of the connection structure of the piles, the piles and a pile cap were connected by ring brackets and the piles were embedded in the base rock by double sockets. The piles were constructed by the construction technology of pile planting method and filling stones and grouting mortar at the sides of the piles. The pushing rigidity testing of the single pile by applying horizontal load to the pile top cantilever end proved that the CFST piles of the bridge were safe and reliable.
Key words: concretefilled steel tube pile; rocksocketed pile; pushing rigidity; design; construction; testing
伦洲大桥主桥结构设计
丁少凌，陈宏卓，南军强
（中交第二公路勘察设计研究院有限公司，湖北 武汉 430056）
摘 要：伦洲大桥主桥为100 m+2×170 m+100 m空腹式连续梁-刚构组合体系。主梁采用单箱双室截面，主梁上、下弦汇合段采用柔性中板方案；下弦设置顶板束，梁段根部下弦设置腹板下弯束，顶板悬臂浇筑束两两错开布置；上、下弦汇合前施加顶推力并设置临时固结；主墩为实体墩，中主墩固结，边主墩释放，边主墩横向设3排支座，墩顶设临时固结块。0号块、边跨现浇段及合龙段采用支架现浇，其他节段采用挂篮悬臂浇筑。分别采用MIDAS Civil 2010、 ANSYS 10.0软件进行主桥总体及局部应力分析，计算结果表明：伦洲大桥各项指标均能满足规范要求，且有一定的安全储备。
关键词：刚构桥；空腹式；连续梁-刚构组合体系；结构设计；计算分析；桥梁设计
中图分类号： U448.23；U442.5 文献标志码： A
Structural Design of Main Bridge of Lunzhou Bridge
DING Shaoling, CHEN Hongzhuo, NAN Junqiang
(CCCC Second Highway Consultants Co., Ltd., Wuhan 430056, China)
Abstract: The main bridge of the Lunzhou Bridge is a prestressed concrete hybrid system of openweb continuous girder and rigidframe with span arrangement 100 m＋2×170 m＋100 m. The main girder of the bridge is of twincell singlebox section and at the meeting section of the upper and lower chords of the girder, the flexible central partition wall is employed. In the lower chord, the top slab prestressing tendons are set and in the lower chord of the root part of the girder, the web draped tendons are set. The tendons for the top slab to be cantileveredly cast are staggered in each two tendons. Before the upper and lower chords meet, the pushing force is applied and the temporary rigid fixity is made. The main piers of the bridge are the solid ones, of which the pier in the middle is rigidly fixed and the side piers will release stress. On the top of each side main pier, 3 arrays of bearings are arranged in transverse direction and the temporary rigid fixing blocks are arranged as well. The segments No.0, the castinsitu segments of side spans and closure segments are constructed on scaffoldings while the rests of the segments are cantileveredly constructed, using the form travelers. The software MIDAS Civil 2010 and ANSYS 10.0 are respectively employed to analyze the global and local stress of the main bridge and the results of the calculation and analysis indicate that all indices of the bridge can satisfy the requirements in the codes and have certain safety margin.
Key words: rigidframe bridge; openweb; continuous girder and rigidframe hybrid system; structural design; calculation and analysis; bridge design
崇启大桥主桥钢箱梁高腹板设计
孔庆凯，许春荣，朱 斌，王志诚，魏乐永
（中交公路规划设计院有限公司，北京 100088）
摘 要：崇启大桥主桥采用（102+4×185+102） m六跨变截面钢箱连续梁桥，主桥钢箱梁最高达9 m。在该桥高腹板设计过程中，对国内、外相关标准和规范进行研究，制定高腹板结构设计和验算思路。腹板在顺桥向不同区段采用4种不同的板厚，在箱梁内侧保持平齐。腹板横肋纵向间距1.4 m，加劲肋均采用T形构造；腹板纵肋采用扁钢构造。墩顶附近梁段靠近底板的腹板纵肋与横肋焊接，其余部位腹板纵肋在横肋处断开。按照规范方法对腹板强度、最小厚度及纵肋设置位置合理性、纵肋刚度、横肋间距和刚度、区格局部稳定性进行验算，并采用ANSYS建立半桥板单元模型，对腹板强度和局部稳定性进行校核，结果表明，腹板设计满足规范要求。
关键词：连续梁桥；钢箱梁；腹板；设计；验算
中图分类号： U442.5 文献标志码： A
Design of Deep Webs for Steel Box Girder
of Main Bridge of Chongqi Bridge
KONG Qingkai, XU Chunrong, ZHU Bin, WANG Zhicheng, WEI Leyong
(CCCC Highway Consultants Co., Ltd., Beijing 100088, China)
Abstract: The main bridge of the Chongqi Bridge is a sixspan continuous steel box girder bridge with variable section and with span arrangement (102＋4×185＋102) m and the greatest depth of the box girder of the main bridge is 9 m. In the design of the deep webs for the girder, the provisions in the relevant domestic and foreign standards or codes were studied and the design and checking calculation procedures were formulated. In the different sections of the girder in the longitudinal direction of the bridge, the webs were designed, using 4 kinds of thickness of steel plates and inside the girder, the webs were kept in the same level. The longitudinal spacing of the transverse ribs of the webs is 1.4 m. The stiffening ribs of the webs are all of the Tshape ribs and the longitudinal ribs of the webs were made of flat steel. For the longitudinal ribs close to the bottom plates of the girder blocks nearby pier top, they were welded with the transverse ribs while for the longitudinal ribs at the rest parts of the webs, they were cut off at the intersection of the transverse ribs. In terms of the provisions in the standards or codes, the strength and minimum thickness of the webs, the rationality of locations and rigidity of the longitudinal ribs, the spacing and rigidity of the transverse ribs and the local stability of the grid of the longitudinal and transverse ribs were calculated. The plate element model for half of the bridge was established by the ANSYS and the strength and local stability of the webs were checked. The results of the calculation and checking demonstrate that the design of the webs can accord with the requirements in the standards or codes.
Key words: continuous girder bridge; steel box girder; web; design; checking calculation
基于EfI法的桥梁模态测试中传感器优化布置
江祥林1，2，程 高3
（1.武汉理工大学，湖北 武汉 430070； 2.江西省交通科学研究院，江西 南昌 330038；
3.长安大学，陕西 西安710064）
摘 要：为确定大跨刚性桁架柔性拱桥传感器的最优布置位置，采用ANSYS软件建立全桥有限元模型，分析其动力性能，以模态向量矩阵和有效独立法为准则，在MATLAB环境下开发了三维加速度传感器优化布置工具箱，用于刚性桁架柔性拱桥的传感器优化布置，同时，对桥梁结构模型进行模态试验验证传感器布置方案的合理性。研究结果表明，所选传感器位置能够较好地拟合出桥梁振型，基于EfI的传感器优化布置工具箱对大跨刚性桁架柔性拱桥传感器布置是行之有效的。
关键词：拱桥；桁架桥；传感器；优化；布置；模型试验
中图分类号： U448.224 文献标志码： A
Optimal Sensor Placement for Bridge
Modal Testing Based on EfI Method
JIANG Xianglin1, 2, CHENG Gao3
(1. Wuhan University of Technology, Wuhan 430070, China; 2. Jiangxi Transportation Research Institute, Nanchang 330038, China; 3. Chang′an University, Xi′an 710064, China)
Abstract: To determine the optimal locations of sensors for testing of long span rigid truss and flexible arch steel bridge, the finite element model for the whole bridge of the bridge was built by the software ANSYS and the dynamic properties of the model were analyzed. By the criteria of the modal vector matrix and the effective independence (EfI) method, the tool box for the optimal placement of threedimensional acceleration sensors was developed in the MATLAB environment and the tool box was applied to the optimal sensor placement for the bridge. At the same time, the modal testing for the model of the bridge structure was made to verify the rationality of the optimal sensor placement . The results of study indicate that the selected locations of the sensors can well fit vibrations modes of the bridge and the tool box for the optimal sensor placement based on the EfI method proves to be effective for the sensor placement for long span rigid truss and flexible arch steel bridge.
Key words: arch bridge; truss bridge; sensor; optimal; placement; model test
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