国家会展中心天津)工程大跨度人行天桥设计
摘要：国家会展中心(天津)工程一、二期之间跨越市政道路的两座人行天桥均为大跨度人行天桥，外观及功能相同，但由于1#人行天桥下市政管线复杂，相比2#人行天桥少一个桥墩，其跨度更大，最大跨度达到90.2m,且两座人行天桥扶梯楼梯等附属结构多，结构设计更复杂。以较大跨度的1#人行天桥为例，介绍了钢结构大跨度人行天桥的主要设计要点，采用MIDAS软件对1#人行天桥进行了结构受力分析，同时对人行舒适度进行验算。分析结果表明：1#人行天桥结构体系刚度均匀，整体性良好，设计合理；大跨度钢桁架在跨中和支座处的受力较大，需要适当加强；1#人行天桥的各项验算结果能够满足设计需求。
关键词：国家会展中心天津)；大跨度人行天桥；钢结构设计；舒适度分析
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参考文献[1] 洪菲，王犀，赵建国，等.天津国家会展中心项目综述[J].建筑科学，2020,36(9):2-7.
[2] 城市人行天桥与人行地道技术规范：CJJ 69—95[S].北京：中国建筑工业出版社，1996.
[3] 城市桥梁抗震设计规范：CJJ 166—2011[S].北京：中国建筑工业出版社，2011.
[4] 建筑结构荷载规范：GB 50009—2012[S].北京：中国建筑工业出版社，2012.
[5] 孙利民，闫兴非.人行桥人行激励振动及设计方法[J].同济大学学报(自然科学版),2004,32(8):996-999,1060.
[6] 袁涛，杨晓，王乙静，等.大跨度全钢结构人行天桥的创新结构和美学设计[J].钢结构，2019,34(1):60-64,73.
[7] 刘冬明，娄卫校，李雪良.西安某大跨度钢桁架人行天桥设计[J].钢结构，2016,31(8):50-53.
[8] 张景.人群激励下的钢桁架人行天桥振动分析[D].长沙：长沙理工大学，2018.
[9] Human induced vibrations of steel structures-design of footbridges guideline:RFS2-CT-2007-00033[S].Germany:Research Found for Coal & Steel,2008.
[10] 欧进萍.结构振动控制：主动、半主动和智能控制[M].北京：科学出版社，2003.
[2] 城市人行天桥与人行地道技术规范：CJJ 69—95[S].北京：中国建筑工业出版社，1996.
[3] 城市桥梁抗震设计规范：CJJ 166—2011[S].北京：中国建筑工业出版社，2011.
[4] 建筑结构荷载规范：GB 50009—2012[S].北京：中国建筑工业出版社，2012.
[5] 孙利民，闫兴非.人行桥人行激励振动及设计方法[J].同济大学学报(自然科学版),2004,32(8):996-999,1060.
[6] 袁涛，杨晓，王乙静，等.大跨度全钢结构人行天桥的创新结构和美学设计[J].钢结构，2019,34(1):60-64,73.
[7] 刘冬明，娄卫校，李雪良.西安某大跨度钢桁架人行天桥设计[J].钢结构，2016,31(8):50-53.
[8] 张景.人群激励下的钢桁架人行天桥振动分析[D].长沙：长沙理工大学，2018.
[9] Human induced vibrations of steel structures-design of footbridges guideline:RFS2-CT-2007-00033[S].Germany:Research Found for Coal & Steel,2008.
[10] 欧进萍.结构振动控制：主动、半主动和智能控制[M].北京：科学出版社，2003.
Design of large-span pedestrian bridge in National Convention and Exhibition Center (Tianjin) project
Abstract: The two pedestrian bridges spanning municipal roads between the first and second phases of the National Convention and Exhibition Center(Tianjin) project are long-span pedestrian bridges with the same appearance and function, but due to the complexity of municipal pipelines under the 1# pedestrian bridge, there is one less pier and larger span than 2# pedestrian bridges, the maximum span of the 1# pedestrian bridge reaches 90.2 m. There are many auxiliary structures such as escalators and stairs on the two pedestrian bridges, and the structural design is more complicated. Taking the 1# pedestrian bridge with a large span as an example, the main design points of the steel structure long-span pedestrian bridge were introduced. MIDAS was used to analyze the structural force analysis of the pedestrian bridge and the pedestrian comfort was checked. The results show that the 1# pedestrian bridge has uniform stiffness, good integrity and reasonable design. The long-span steel truss has a large force at the mid-span and the support, which needs to be properly strengthened. The verification results of the 1# pedestrian bridge can meet the design requirements.
Keywords: National Convention and Exhibition Center(Tianjin); large-span pedestrian bridge; steel structural design; comfort analysis
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