[1]陈淮,申哲会,胡锋,等.斜靠式拱桥动力特性研究[J].郑州大学学报(工学版),2005,26(04):25-28.[doi:10.3969/j.issn.1671-6833.2005.04.006]
　CHEN Huai,Shen Zhehui,HU Feng,et al.Study on dynamic characteristics of reclining arch bridges[J].Journal of Zhengzhou University (Engineering Science),2005,26(04):25-28.[doi:10.3969/j.issn.1671-6833.2005.04.006]
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斜靠式拱桥动力特性研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
26
期数:
2005年04期
页码:
25-28
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Study on dynamic characteristics of reclining arch bridges
作者:
陈淮; 申哲会; 胡锋; 等.
郑州大学土木工程学院,河南,郑州,450002, 郑州大学土木工程学院,河南,郑州,450002, 郑州大学土木工程学院,河南,郑州,450002, 郑州大学土木工程学院,河南,郑州,450002
Author(s):
CHEN Huai; Shen Zhehui; HU Feng; etc
关键词:
斜靠式拱桥;  有限元法;  频率;  振型
Keywords:
DOI:
10.3969/j.issn.1671-6833.2005.04.006
文献标志码:
A
摘要:
平顶山市城东河路湛河桥是一座斜靠式钢筋混凝土箱肋拱桥,该桥内拱外倾、外拱内倾,组成组合拱肋与系杆梁、横梁组合成空间结构体系.该桥型较少见,为了了解该桥型的动力性能,需要对桥梁进行空间动力特性分析.采用ANSYS软件建立该桥梁空间有限元计算模型,计算得到桥梁前15阶振动周期和振型.计算结果表明:该种桥型的拱肋面内外刚度相差较大,横向刚度较竖向刚度弱,桥梁低阶以拱肋横向振动为主;桥梁的自振周期较大;桥梁振型较为密集.
Abstract:
Zhanhe Bridge, Chengdonghe Road, Pingdingshan City, is a reclining reinforced concrete box rib arch bridge, the inner arch of the bridge is tilted outward, the outer arch is tilted inward, and the combined arch rib is combined with tie beam and beam to form a spatial structure system. This bridge type is rare, and in order to understand the dynamic performance of this bridge type, it is necessary to analyze the spatial dynamic characteristics of the bridge. ANSYS software was used to establish the finite element calculation model of the bridge, and the vibration period and mode shape of the bridge in the first 15 steps were calculated. The calculation results show that the stiffness inside and outside the arch rib surface of this bridge type is quite different, the lateral stiffness is weaker than the vertical stiffness, and the lower level of the bridge is dominated by the lateral vibration of the arch rib. The self-vibration period of the bridge is large; The bridge mode shape is relatively dense.

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更新日期/Last Update: 1900-01-01