摘要
文章以大连市普湾新区16号路海桥工程为依据,针对其扣塔的整体稳定性,采用了有限元软件来对其进行验算分析。按照工程实际情况,运用Midas/Civil有限元软件进行扣塔结构建模,对钢箱系杆拱桥施工过程当中扣塔在自重、风荷载和全部扣索锚索作用下的稳定性进行有限元分析与计算。文中详细讨论了该结构在不同扣塔刚度、扣索刚度以及不同风速的作用下扣塔的稳定系数和失稳模态,对比不同因素对扣塔整体稳定性的影响。扣塔的整体稳定性关乎整个工程施工的安全,应当确保扣塔不会发生失稳破坏。
The article is based on the No.16 road bridge project in Pu Wan New District,Dalian,the finite element software is used to check the stability of the buckle tower.According to the actual situation of the project,the Midas/Civil finite element software is used to model the tower structure.The finite element analysis and calculation of the stability of the buckle tower during the construction process of steel box tied arch bridge under the action of self-weight,wind load and all buckle anchor cables are carried out.In the article,the stability coefficient and instability mode of the tower are discussed in detail under the action of the stiffness of different buckle tower and stiffness of different buckle and the different wind speed.The influence of different factors on the overall stability of the tower is compared.The overall stability of the buckling tower is related to the safety of the whole construction,and the buckling failure of the buckling tower should be ensured.
作者
于颖
孙海霞
屈国
Yu Ying;Sun Haixia;Qu Guo
出处
《辽宁省交通高等专科学校学报》
2019年第1期12-16,共5页
Journal of Liaoning Provincial College of Communications
关键词
钢箱系杆拱桥
扣塔
有限元分析
稳定系数
失稳模态
steel box tied arch bridge
buckle tower
finite element analysis
stability coefficient
instability mode
