小宽跨比系杆拱桥动力特性研究  

Study on dynamic behavior of tied arch bridge with small width-span ratio

作　　者：罗玮[1] 虞建成[1] 

机构地区：[1]东南大学交通学院

出　　处：《山西建筑》2008年第1期319-320,共2页Shanxi Architecture

摘　　要：结合方山大桥工程实例,通过建立其空间有限元模型,计算了成桥状态下,方山大桥前十阶的自振频率及振型特征,并对计算结果进行了分析,探讨了主要结构参数对其动力性能的影响,为此类桥梁的设计提供了参考。Combined with practical engineering of Fangshan bridge, the article calculates the natural frequency and mode shape characterisdes of Fangshan bridge on the state of bridge completion through building its spatial finite element model, analyzes the results, and discusses the influences of main structural parameters on its dynamic behavior, which to offer a reference for the design of similar bridge.

关 键 词：系杆拱桥 宽跨比 动力特性 有限元模型 

分 类 号：U448.22[建筑科学—桥梁与隧道工程]