大跨拱桥劲性骨架设计研究
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摘要
劲性骨架钢筋混凝土拱桥跨越能力大、潜在超载能力强、施工技术成熟,是一种极具发展前途的大跨拱桥形式。文中以渝贵铁路上的某座大跨拱桥为例,介绍了该桥的劲性骨架设计分析、施工情况;采用有限元软件同时结合不同国家规范对施工过程中的劲性骨架应力、强度及稳定性进行了分析。
The reinforced concrete arch bridge with stiff skeleton has great span capacity,strong potential overload capacity and mature construction technology.It is a very promising long-span arch bridge form.In this paper,taking a large span arch bridge on Chongqing-Guiyang railway as an example,the stiff skeleton design and construction of the bridge are introduced in detail,and the stress,strength and stability of the stiff skeleton in the construction process are analyzed with the finite element software combined with the different national norms in the construction process.
The reinforced concrete arch bridge with stiff skeleton has great span capacity,strong potential overload capacity and mature construction technology.It is a very promising long-span arch bridge form.In this paper,taking a large span arch bridge on Chongqing-Guiyang railway as an example,the stiff skeleton design and construction of the bridge are introduced in detail,and the stress,strength and stability of the stiff skeleton in the construction process are analyzed with the finite element software combined with the different national norms in the construction process.
引文
[1]顾颖.大跨度劲性骨架混凝土拱桥稳定性分析[D].成都:西南交通大学,2008.
[2]卢士波,吕利芹.基于PDL模型的钢管混凝土劲性骨架拱桥拱肋吊装线形控制研究[J].交通科技,2019(1):55-58,62.
[3]铁路桥梁钢结构设计规范:TB 10002.2-2005[S].北京:中国铁道出版社,2005.
[4]詹昊,廖海黎.拱桥钢箱吊杆驰振稳定性数值计算研究[J].武汉理工大学学报(交通科学与工程版),2018,42(5):766-771.
[5]公路钢管混凝土拱桥设计规范:JTG/T D65-06-2015[S].北京:人民交通出版社股份有限公司,2015.
[2]卢士波,吕利芹.基于PDL模型的钢管混凝土劲性骨架拱桥拱肋吊装线形控制研究[J].交通科技,2019(1):55-58,62.
[3]铁路桥梁钢结构设计规范:TB 10002.2-2005[S].北京:中国铁道出版社,2005.
[4]詹昊,廖海黎.拱桥钢箱吊杆驰振稳定性数值计算研究[J].武汉理工大学学报(交通科学与工程版),2018,42(5):766-771.
[5]公路钢管混凝土拱桥设计规范:JTG/T D65-06-2015[S].北京:人民交通出版社股份有限公司,2015.