摘要
为了给超长跨海钢结构桥梁的建设提供参考,综述了港珠澳大桥的建设实践。介绍了大桥的建设制约条件、建设目标及理念,以及大桥的景观设计,说明了超长钢桥选型的主要考虑因素:抗震性能、耐久性、施工性、结构维护和环保。关于钢箱梁设计,重点介绍了单体大悬臂钢箱梁正交异性板的疲劳设计要点、参数优化结果、疲劳细节构造及足尺模型疲劳试验情况,并对使用调谐质量阻尼器应对主梁涡激振动的情况进行了介绍。关于施工质量管理,在全过程品质保证/品质控制(QA/QC)技术要求、质量控制和验收标准的基础上,对多项专项产品技术管理进行了介绍,数个首次使用的标准(如不锈钢钢筋、桥梁检查车等)可为中国行业标准的建立和完善提供参考。介绍了钢结构制造过程中有关加工、制作、焊接和检测的新技术与新工艺,这些要求可提高生产效率、改善工人工作环境、消除人为误差、提高制造精度并保证钢结构品质的稳定性。关于海上吊装,重点介绍了3座斜拉桥的钢塔吊装技术。关于防护涂层及维护,重点介绍了挥发性有机化合物(VOC)含量限值等环保性能指标及钢箱梁箱内、箱外检修车系统特点。综述分析表明:港珠澳大桥"四化"要求促进了钢结构各施工环节的工艺创新,机械化、自动化、信息化技术的应用,提升了中国桥梁钢结构加工企业的总体制作能力和管理水平;海上装配化施工,促进了海上大型设备的开发应用和吊装工法的创新,成功经验为海上工程的设计与施工开辟了新的途径;钢桥面铺装方案效果有待实践的检验。
To provide references to construction of a long sea-crossing steel bridge,the construction project of Hong Kong-Zhuhai-Macao Bridge（HZMB）were summarized.The project construction constraints,project goal ＆concept,and bridge landscape design were introduced,which showed the main consideration factors for long steel bridge type selection including seismic performance,durability,constructability,structure operation ＆ maintenance and environment protection.For the design issues,emphasis has given to key points of fatigue design,optimized parameters results,fatigue structure detail and the full-size fatigue model test of the orthotropic steel panel of single-cell cantilevered box girder,and the respond condition of tuned mass damper to vortexshedding was introduced.For the construction quality control,the technical management for specialized bridge engineering products was introduced based on technical requirement of quality control/quality assurance QA/QC,quality control and acceptance standard.Several firstly used standards including new technologies（stainless steel bars,girder maintenance vehicle etc.）can provide a reference for the establishment and improvement of standard in Chinese industry.New technology and skills of processing,fabrication,welding and testing in the production of steel structure were introduced,the requirement for which can increase production efficiency,improve working environment for workers,eliminate man-made error,improve production precisions and maintain the quality stability of steel structure.Then the erection methods for the three cablestayed bridges were introduced for offshore lifting.For the coating protection and maintenance,environment protection indicators such as content limitation of volatile organic compounds（VOC）and characteristics of maintenance vehicle system inside and outside the girder box were introduced.The results show that the requirements of FourStandardizationshas promoted the technical innovations of all construction process for steel structure and
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2016年第12期1-9,共9页
China Journal of Highway and Transport
基金
"十二五"国家科技支撑计划项目(2011BAG07B01)
关键词
桥梁工程
港珠澳大桥
综述
钢箱梁
正交异性板
钢桥面铺装
质量保证
bridge engineering
Hong Kong-Zhuhai-Macao Bridge
summary
steel box girder
orthotropic steel panel
steel deck pavement
quality assurance
