您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

第14卷    第2期    总第83期    2017年2月

[PDF全文下载]    [Flash在线阅读]

    

文章编号:1672-7029(2017)02-0296-07
拱桥成桥状态下吊杆索力优化
田志昌1,孙超1,韩永华2,赵根田1

(1. 内蒙古科技大学 建筑与土木工程学院,内蒙古 包头 014010;
2. 广东平兴高速公路有限公司,广东 广州 510640
)

摘 要: 衡量刚构与拱组合体系系杆拱桥的标准之一是查看其成桥状态下内力分布与其大小。成桥在恒、活荷载的作用下拱肋与主梁所承受的弯曲应力小且均匀,此时方能称为合理的成桥状态。关于拉索索力优化的方法和理论大多以斜拉桥为研究对象。在借鉴斜拉桥索力优化的基础上,通过有约束的最小能量法,建立适用于吊杆索桥的优化模型以及约束的表达式,并结合工程实例来研究系杆拱桥成桥状态的吊杆索力优化。

 

关键字: 系杆拱桥;索力优化;成桥状态;有约束的最小能量法

Completed bridge suspender forces optimization of a arch bridge
TIAN Zhichang1, SUN Chao1, HAN Yonghua2, ZHAO Gentian1

1. College of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China;
2. Guangdong Pingxing Expressway Co. Ltd, Guangzhou 510640, China

Abstract:One of the standards which measures the arch and rigid frame is to check the internal force distribution and size under the finished state. When the bending stress of the arch rib and the main girder under the action of constant and live load is small and well-distributed, the bridge can be regarded as reasonable. The method and theory of cable force optimization mainly takes cable-stayed bridge as the object of research. The cable optimization model and the constrained expression were constructed on the basis of cable-stayed bridge’s cable force optimization and constrained energy minimization method. The cable force optimization of arch bridge’s completion state was also studied with reference to engineering practices in this paper.

 

Key words: tied arch bridge; cable tension; bridge completion; the constrained minimum energy method

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn