摘要
Abstract
In the design of Shangqiu-Hefei-Hangzhou high speed railway bridge, the long span and short pier bridge has to be employed to cross over Bozhou Wo River, Fuyang Yinghe River and other special worksites. With reference to the practices in railway bridge design, the three schemes of continuous rigid frame, V-shaped pier continuous rigid frame and continuous rigid frame arch bridge are studied in perspectives of applicability, economy, power performance, long wave track irregularity, and(88+168+88 ) m continuous rigid frame bridge is finalized as the most suitable type of bridge based on the comparison of the long and short wave irregularity of the three schemes. Through optimization calculation of the height of continuous rigid frame arch bridge, the distance between rigid wall piers, the thickness of rigid wall and the arc rib size, its structural bearing capacity is much improved, which satisfies the requirements for long and short wave irregularities and makes it applicable to high-speed railway.关键词
V形墩/连续刚构/连续刚构拱桥/铁路桥/高速铁路Key words
V-shaped pier/Continuous rigid frame/Continuous rigid frame arch bridge/Railway bridge/High speed railway分类
交通工程
