2009年, 第11卷, 第1期 刊出日期:2024-06-28
    

  • 全选
  • You Qingzhong
    2009, 11(1): 2-5.
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    The paper analyzes current state of innovation system in the field of public infrastructure construction in China, elaborates on the duty and role of owner in establishment of a technical innovation system with enterprise as main body following the process of production-education-research. This paper also claims that key project construction is an important resource to enhance national capability of innovation and accordingly puts forward an effective approach to cultivate the core competitiveness of leading enterprises on the basis of practice in Sutong Bridge.
  • 何华武
    2009, 11(1): 4-16.
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    高速铁路是复杂的巨系统。京津城际铁路是我国首条工程实践、运营实践的高速铁路,在攻克系统设计与系统集成、轨道高平顺与高稳定、高速列车安全与舒适、运行(营)控制可靠与高效四大方面科技难题和关键技术取得了重大创新成果;历时3年建造,开通运营验证,整体达到世界领先水平;该成果对推进我国铁路网又好又快地建设具有指导性、示范性的重大作用。

  • Zhang Xigang1, Yuan Hong1, Pei Minshan1, Dai Jie2, Xu Lin1
    2009, 11(1): 6-11.
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    The main span of Sutong Bridge is a double-pylon, double-plane cable-stayed bridge with steel box girder, which has the world's longest central span of 1,088m within cable-stayed bridges. Overcoming problems caused by severe meteorological conditions, perplexing hydrological conditions, deep buried bedrock and higher navigation level, many new technics and methods were created. The super-long span and stayed cables, super-high towers, as well as super-large foundations in deep water are all world records currently. Keys including structural system, steel box girder, stayed cable, tower, pier, tower foundation, collision avoidance system, wind-resistance, seismic-resistance, structural nonlinear response and structural static stability were presented individually in this paper. It was awarded George-Richardson Medal of International Bridge Conference (IBC) in 2008. The success of Sutong Bridge is the landmark that denotes China from large bridge country to advanced bridge country.
  • Zhang Xigang1, Pei Minshan1, Yuan Hong1, Xu Liping2, Zhu Bin1
    2009, 11(1): 12-17.
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    Sutong Bridge, whose layout is (100+100+300) +1088 + (300+100+100) m,marks the largest span of cable-stayed bridges in the world. The complex natural condition at the bridge site and the strict requirements for resistance of wind and seismic action make it crucial to choose a favorable structural system to assure the function and safety of the bridge. The comparison among several optional structural systems for Sutong bridge is illustrated. After detail analysis is carried out for viscous damper and hydraulic buffer, super liquid viscous damper with additional displacement limitation is designed for the first application in bridge engineering. The parameters for the damper is analyzed and studied and the dampers are installed successfully after required damper tests.
  • 高宗余
    2009, 11(1): 17-21.
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    建设中的京沪高速铁路和京广客运专线铁路,跨长江、黄河的4座大跨度桥梁都采用了钢桁梁结构,且均为多线铁路桥或公铁两用大桥,承载能力大、列车运行速度高。诸多新材料、新结构、新工艺获得运用。

  • Pei Minshan, Zhang Xigang, Zhu Bin, Hou Bin, Liu Changpeng
    2009, 11(1): 18-22.
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    Along with the expanding of span of cable-stayed bridge, wind load becomes more and more important controlling factor for bridge design. A very large proportion of the wind load acting on cables has exceeded that acting on deck. There was not any detailed prescript in Chinese code for calculation of longitudinal wind load on cables due to lack of theoretical research and experiment, and conservative simplified calculation was adopted during design, which leads to conservative and uneconomical design of structures. To resolve this problem, cable force experiment was carried out during design of Sutong Bridge. By comparing with international research results, the calculation formula of longitudinal wind drag coefficient for cables was advanced to fill the blank of bridge wind resistant code of China, and this formula has already been adopted in the Highway Bridge Wind Resistant Design Code (JTG/T D60-01-2004) with great significance for bridge engineering.
  • 杜嘉俊
    2009, 11(1): 22-25.
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    针对京沪高速铁路北京至沧州段桥梁工程特点,重点介绍了代表性特殊结构桥梁的施工方法、区域性地面沉降地区桥梁工后沉降的控制措施,以及保证350 km/h无砟轨道高平顺性的施工技术创新措施。

  • Ye Aijun1, Wu Shouchang2
    2009, 11(1): 23-29.
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    Based on the capacity/demand analysis of bridge components, and life cycle and performance based seismic design principles, a practical procedure is developed for the seismic performance evaluation of super-long span cable-stayed bridges. According to the procedure, the seismic performance evaluation of the Su-Tong Bridge,which is a cable-stayed bridge with a main span of 1088m, is completed, and the practicality of the procedure is validated. The earthquake resistance level for super-long span cable-stayed bridges is discussed, including the earthquake level, its corresponding structural performance and check indices. And a set of formula for capacity/demand ratio calculation of bridge components is proposed.
  • 高治双,赵年全,赵常煜,胡明文,苟云龙
    2009, 11(1): 26-31.
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    以京沪高速铁路为工程背景,试验研究了矿物掺合料(粉煤灰、粉煤灰-矿粉)对混凝土工作性能、力学性能和耐久性能的影响以及大掺量矿物掺合料高性能混凝土的配制技术。结合实际工程,介绍了大掺量矿物掺合料高性能混凝土原材料选择、配合比设计、施工工艺等方面的控制技术。

  • Ren Huixing, Ouyang Xiaoyong, He Maosheng, Nie Qinlong, Wang Xiali
    2009, 11(1): 30-36.
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    The Sutong Bridge across the lower Yangtze River in China will have, when completed, the longest span (1,088 m) of any cable stayed span in the world. The main pylon foundations are located in high water depth and the soil at the site of the main pylons is weak. Moreover, the foundations are susceptible to large scour and the river at bridge site is in the main waterway to Yangtze River Basin with very heavy traffic. As a result, design and construction of Sutong Bridge foundations have experienced lots of technical challenges. This paper, from three aspects including construction conditions, foundation design and construction, introduces some considerations during design of main pylon foundations and some practical measures taken to deal with some unfavorable construction conditions, including deep water, tidal effect, soft stratum and heavy traffic, during construction of main pylon foundation.
  • 孙树礼,张文建,王召祜,苏伟,吴彩兰,卜庆颢
    2009, 11(1): 32-42.
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    京津城际铁路是我国第一条建成运营的时速350 km客运专线。设计中贯彻桥梁建设新理念,确保高速条件下列车的安全性、舒适性和稳定性要求,并遵循环境适应性、服务运输和综合效益的设计理念。全线采用长桥方案,桥上采用最先进的无砟轨道技术,桥梁占线路长度的87.7 %,京津城际铁路桥梁设计、建造的成功,为今后大规模高速铁路建设积累了宝贵的经验,起到了示范性、标志性、样板性工程的作用。

  • He Ping,Guan Yijun,Zhang Xiongwen,Zhang Qun,Zhou Jianhua
    2009, 11(1): 37-44.
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    Riverbed scour protection is essential for the success of building a bridge. Sutong Bridge, as a world-record cable-stayed bridge with its main span exceeding 1000 meters constructed in Yangtze River estuary region in China, is located at a site with complicated hydrologic conditions and poor geotechnical conditions and therefore, scour protection will be a decisive factor for ensuring smooth and successful construction of this bridge. This paper, starting from structural description of deep-water group pile foundation, analyzes impact to the bridge safety introduced by scour and its protection and further presents different solutions of scour protection for foundation structures of this bridge.
  • 丁愿文
    2009, 11(1): 43-47.
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    以京津城际铁路工程为例,系统地介绍了无碴轨道客运专线(高速铁路)桥梁沉降观测的具体要求、方法,并提出了沉降评估的数学模型和判定条件。

  • Luo Chengbin1, Zhou Jianlin2 ,Tian Wei3, Dai Jie4
    2009, 11(1): 45-51.
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    Su-tong Bridge tower with 300.4m is the highest one in the world. The tower anchor area uses the steel-concrete composite structure, its structure and the stress mechanism are complex, So It must be pay more attention to the structure durable issue. The tower with 300 meters is quite sensitive of the environmental factors such as wind and temperature. The safety of tower in construction stage against the wind is important especially. In this paper, the design of composite structure is introduced .The key technologies of tower geometry control and wind resistance in construction stage are analyzed.
  • 李明领
    2009, 11(1): 48-59.
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    为满足高速列车安全、舒适性的需要,保证线路的高平顺性,无碴轨道的铺设与运营对路基、桥涵、隧道等线下结构的工后沉降要求非常严格, 追求“零沉降”理念。以武广铁路客运专线为基础,系统地介绍了线下结构物沉降变形观测关键技术,数据管理与分析预测系统,提出了工后沉降的预测方法及评估条件与标准,合理确定无碴轨道开始铺设时间,以保证客运专线无碴轨道结构铺设的质量。并提出了一些体会和建议,为正在建设的无砟轨道客运专线提供借鉴。

  • Ding Feng1, Sang Chunming2, Zhou Daiyi2, Bai Bingdong1
    2009, 11(1): 52-58.
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    This paper focuses on introduction of the manufacture technology of 1770 MPa galvanized steel wires for stay cables applied to domestic bridges. During the development practices of high strength galvanized wire for stay cables used in Sutong Bridge, Baosteel has established three key technologies based on research of manufacture technology and technical innovation. The three key technologies are: “Double tensioning + limiter die” process, “Dominant process + fine adjustment” in integrated optimization technology and “three-level control” in hot dip galvanization. With these key technologies, Baosteel has produced 1770 MPa galvanized wires for stay cable, which has high tensile strength, low relaxation and good torsion performances.
  • Rao Huarong, Deng Huibin
    2009, 11(1): 59-62.
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    In the background of the constrction of Su-tong Yangtze River bridge, the cable construction method and techniques of a thousand-meter scale cable-stayed bridge are introduced. Some key construction techniques, such as outspreading cable on deck, installing cable at pylon, pulling and fixing cable at the attachment with decks and cable PE protection, are discussed.
  • 宋津喜
    2009, 11(1): 60-66.
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    采用现场实测的方法对武广客运专线工程32 m预应力混凝土箱梁应力效果进行监测,并采用Midas/Civil结构分析程序进行了弹性上拱的理论分析,提出箱梁徐变上拱的控制措施,为同类工程提供借鉴及经验。

  • Chen Ming1, Wu Qihe2, Luo Chengbin1, Zhou Hanfa2
    2009, 11(1): 63-68.
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    Su-tong Bridge is a cable stayed bridge with a steel box girder and a main span of 1088 meters. The steel box girder of main-span include five portions: back span large unit, large block of pylon, standard girder, back span closure girder and middle span closure girder. Each back span large unit was fabricated by welding several deck segments together in factory, and was erected by floating crane. Due to the high of navigational clearance of the main bridge, the traditional truss lifting device couldn’t satisfy the requirement of domestic lifting cranes for this kind of lifting height and weight. Hence, a kind of lighter lifting device for the erection of back span large units was accepted for this bridge. In this paper, the design and use of this lifting device is introduced. The upper structure used lifting gantry to install the standard girder segment by cantilever method. Because the bridge’s navigation clearance is high, and the girder segment is wide and heavy, the meteorology and hydrology condition of the bridge district is abominable, and the requirements of long cable girder side pull-in, structure and performance propose high request to the lifting gantry. In this paper, the design and use key point of long cable pull-in angle adjustment device integrate into lifting gantry is introduced.
  • 王治斌,王清明
    2009, 11(1): 67-74.
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    结合所承担的铁道部及中铁建总公司科研课题“客运专线铁路简支箱梁梁场工业化研究”的研究成果,及近30个梁场的规划设计实践,对梁场选址、梁场的平面布置及设备配套等梁场建设的3大重要内容进行了全面深入的论述。

  • Chen Ming1, Luo Chengbin1, Wu Qihe1,2, Zhang Yongtao1,2, You Xinpeng1,2
    2009, 11(1): 69-75.
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    Sutong bridge is a cable stayed bridge with a steel box girder and a main span of 1088m. The erection of upper structure adopts geometry control method and requires no change to the unit’s size and the structure’s none-stress geometry. Before main span closure, the cantilever of girder reaches 540.8m, the structure state is noticeably influenced by external circumstances, the main span closure face great difficulty. By abstracting the advantage of the pullback method abroad and the domestic temperature-cutting method, a new assistant pullback method have put forward and bring into practice actually. In this paper, the analysis key point of practice conditions、key parameter of practice、main measures of the method, and the performance is introduced.
  • 黄直久
    2009, 11(1): 75-80.
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    介绍聚羧酸系减水剂在满足铁路客运专线高性能混凝土综合性能方面的能力和特点,分析了工程应用中使用聚羧酸系减水剂存在的一些问题。提出解决聚羧酸系减水剂与水泥的相容性问题以及保持聚羧酸系减水剂本身质量稳定性是目前该减水剂应用的关键。

  • Zhang Hong1, Luo Chenbin2, Zhang Yongtao2, You Xinpeng2
    2009, 11(1): 76-82.
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    The Sutong Yangtze highway bridge is now the largest span cable-stayed bridge in the world. The construction of the super structure of the main bridge covered several stages including erection of the big block girders for the side span, assistant span and tower area, erection of standard girders and closure of the mid-span. The big block girders were hoisted by a floating crane, and the standard girders were hoisted by a double crane system on the deck. The pushing assistant method was adopted for the mid span closure construction. Furthermore, key technologies and innovative methods used in the processes of girder erection and cable assemblage in all stages were expatiated systematically. An all-stage self- adaptive geometry control method was used in the construction process. By accurately controlling the unstressed dimensions and shape of all structural components in each step, and realization that the control system and the controlled system adapt to each other, the goal was to make control of the final line shape and inner force of the bridge structure achievable. Two solutions, including GPS based and total station based dynamic geometry monitoring systems, were used to resolve the measure problem under the wide –range of wind-induced vibrations in the long cantilever state. Finally, research on the wind-induced vibration of the super structure during the construction period was executed. Buffeting response analysis to the longest single and double cantilever states were carried out. The analysis and evaluation of wind resistance safety of the main girders under the longest single cantilever state was made, and corresponding wind resistance measures were suggested. The as-built geometric error and cable force error were controlled in a required design range, and this whole technological achievement can be a benchmark for construction of other large span cable-stayed bridges in the future.
  • 李承根,高日
    2009, 11(1): 81-86.
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    结合高速铁路桥梁抗震设计的需要,提出支座功能分离的设计理念,利用减震榫的塑性变形能力实现桥梁减震目的,建立了以材料应力、应变性能与抗震设防目标匹配的设计准则,并分析了高速铁路简支箱梁桥采用减震榫后的减震效果。
  • Fang Jianhua1,Xu Yanmin2, Liu Mingjun2, Zhang Jingcheng2, Li Bing2
    2009, 11(1): 83-86.
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    Motion state of ship out of control in bridge area was analyzed. Motion procedure after losing control was divided into two steps. One is drift step within stopping period. The other is drift step without inertia, which is induced by wind and current. Mathematical model for motion of ship out of control, considering wind-induced drift, current-induced drift, stopping ability, etc., was established. Dangerous collision areas for main pier and auxiliary piers were analyzed according to different calculation conditions.
  • 黄灿,卜一之,张清华
    2009, 11(1): 87-91.
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    以苏通长江大桥为研究对象,通过数值仿真分析验证了几何控制原理的正确性。通过对施工过程中临时荷载和环境温度对于结构线形影响的系统分析和研究结果表明,在考虑施工全过程几何非线性影响的条件下,临时荷载及环境温度等因素仅影响施工过程中的结构状态,基本不影响成桥的结构线形和内力状态,几何控制原理适用于超大斜拉桥施工控制,采用几何控制原理能够获得良好的施工控制结果。

  • 闫平
    2009, 11(1): 92-96.
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    我国城市公共交通领域已经进入了一个快速发展的建设时期,以北京城市轨道交通规划为例,分析当前我国城市轨道交通在规划、建设及运营方面存在的问题,借鉴国际大都市轨道交通在规划、建设、运营方面的轨道交通方式、客流出行换乘方便、整合既有各种资源、交通带动城市发展的经验,提出了应建立综合协调机制、完善轨道交通规划、打造综合交通枢纽的优化原则,以及利用国有铁路资源实现轨道交通换乘与衔接具体建议。

  • Fa Yueping1, Li Zhen2
    2009, 11(1): 93-101.
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    Objectives define the boundaries of complex engineering system. It is a hard work to determine the specific objectives of a complex engineering system. The objectives system development needs a complicated process, from nix to prototype, and to final definition. The total process will cover the following course: from chaos to well-ordered; from qualitativeness to combination of quantitativeness and qualitativenss, then to qualitativeness to quantitativeness (a recurrent process), expert experience and theoretical science, rationality and sensibility, synthetic analysis and meta-synthetic, routinization and non-routinization. Such process is explicit in phase development yet overlapped; mutually confined yet mutually independent; permeated conflicts yet pregnant in harmony. This article explores the complexity of Sutong bridge’s objectives development and the process of meta-synthesis in the Sutong Bridge engineering.