摘要
在计算大跨度展翅拱桥的过程中,拱顶与拱脚无法同时达到理想效果。本文采用了一种新的组合线形作为拱轴线,从而满足工程需要,并进行了二次抛物线、不同m值悬链线与组合线型的受力分析与比较,在数据上确保设计的合理性。该文为组合线形做了开拓性工作,并为其推广应用提供了经验。
In the progress of calculating long-span ＂fly-bird-type＂ arch bridge,it is hard to make vault and arch springing both get the best result synchronously. This paper proposes a novel method in which combined line shape is used as the arch axis to meet the needs of the real project. Compared with the second-degree parabola and catenary with different values of ＂m＂ ,the combined line shape design is more reasonable and suitable based on the force analysis and data. This paper is an innovative attempt of the combined line shape design and provides an experience for popularizing this new type of line shape.
出处
《广东土木与建筑》
2013年第1期51-53,共3页
Guangdong Architecture Civil Engineering
关键词
拱轴线
组合线型
展翅拱
受力分析
arch axis
combined line shape
＂fly-bird-type＂ arch bridge
force analysis
