拱桥极限跨径研究  

Disquisition on Limitation Span of Arch Dridge

作　　者：夏旻[1] 刘浩[1] 

机构地区：[1]同济大学桥梁系,上海200092

出　　处：《交通科技》2005年第6期39-42,共4页Transportation Science & Technology

摘　　要：以拱肋材料的强度为限定条件,研究恒载下分别以抛物线、悬链线作为合理拱轴线时拱桥的极限跨径。并以此为基础,就极限跨径下拱桥的最佳矢跨比范围进行讨论。Take the arch rib material strength as the prior condition, the paper studies limitation span of arch bridge with parabola and catenary as rational arch axis curve under dead load. On this foundation, the best range of rise-span ratio of arch bridge which reaches its limitation span is discussed.

关 键 词：拱桥 极限跨径 矢跨比 合理拱轴线 

分 类 号：U448.27[建筑科学—桥梁与隧道工程] U448.22[交通运输工程—道路与铁道工程]