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| 南京长江第四大桥预制节段拼装箱梁的技术特色 | |
| 引用本文： | 武焕陵,崔冰,李宗平,孟少平,周明华,刘钊. 南京长江第四大桥预制节段拼装箱梁的技术特色[J]. 现代交通技术, 2011, 8(3): 26-29 |
| 作者姓名： | 武焕陵 崔冰 李宗平 孟少平 周明华 刘钊 |
| 作者单位： | 1. 南京长江第四大桥建设协调指挥部,江苏南京,210033 2. 中交公路规划设计院有限公司,北京,100088 3. 中交二航局四公司,安徽芜湖,241006 4. 东南大学土木工程学院,江苏南京,210096 |
| 基金项目： | 江苏省交通科学研究计划(09Y11) |
| 摘 要： | 南京长江第四大桥的引桥主要为预制节段拼装箱梁桥，该文介绍了其中的技术特色，包括标准化的制梁、运梁和架梁工艺，注重耐久性的结构体系与设计施工措施，运用拉压杆模型方法进行锚固区细部构造设计，采用特制的专用架桥机满足多种架梁作业需求。此外，还通过足尺模型试验和键齿剪力键试验，检验了节段预制、拼装质量，研究了桥梁的结构行为。 |
| 关 键 词： | 节段预制拼装；耐久性；拉压杆模型；足尺模型试验；剪力键试验 |
Technical Features of Precast Segmental Girders of Fourth Nanjing Yangtze River Bridge |
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| Wu Huanling,Cui Bing,Li Zongping,Meng Shaoping,Zhou Minghua,Liu Zhao. Technical Features of Precast Segmental Girders of Fourth Nanjing Yangtze River Bridge[J]. Modern Transportation Technology, 2011, 8(3): 26-29 | |
| Authors: | Wu Huanling Cui Bing Li Zongping Meng Shaoping Zhou Minghua Liu Zhao |
| Affiliation: | Wu Huanling~1,Cui Bing~2,Li Zongping~3,Meng Shaoping~4,Zhou Minghua~4,Liu Zhao~4(1.Construction Headquarters of Fourth Nanjing Yangtze River Bridge,Nanjing 210033,China,2.CCCC Highway Consultants Co.Ltd,Beijing 100088,3.The 4th Engineering Company,CCCC Second Harbour Engineering Co.,Ltd.,Wuhu 241006,4.College of Civil Engineering,Southeast University,Nanjing 210096,China) |
| Abstract: | The approach spans to the Fourth Yangtze River Bridge are mainly composed of precast segmental girders.This paper introduces the technical features,such as standard procedures for girder fabrication,transportation and erection,design and construction measures aimed at improving durability,implementation of strut-and-tie models for detailing of anchorage zone,and specifically-made overhead gantry for span erection.In addition,a full-scale test and a series of shear key tests are carried out to verify the pre... |
| Keywords: | precast segmental erection durability strut-and-tie model full-scale model test shear key test |
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