[1]周勇军,赵小星,贺拴海,等.弯钢箱梁桥的动力分析及模态试验[J].郑州大学学报(工学版),2005,26(04):20-24.[doi:10.3969/j.issn.1671-6833.2005.04.005]
　Zhou Yongjun,Zhao Xiaoxing,He Jihai,et al.Dynamic analysis and modal test of bent steel box girder bridge[J].Journal of Zhengzhou University (Engineering Science),2005,26(04):20-24.[doi:10.3969/j.issn.1671-6833.2005.04.005]

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弯钢箱梁桥的动力分析及模态试验()

分享到：

《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:

20-24

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Dynamic analysis and modal test of bent steel box girder bridge

作者:

周勇军; 赵小星; 贺拴海; 等.

长安大学桥梁与隧道陕西省重点实验室,陕西,西安,710064, 长安大学桥梁与隧道陕西省重点实验室,陕西,西安,710064, 长安大学桥梁与隧道陕西省重点实验室,陕西,西安,710064, 长安大学桥梁与隧道陕西省重点实验室,陕西,西安,710064

Author(s):

Zhou Yongjun; Zhao Xiaoxing; He Jihai; etc

关键词:

桥梁工程;  连续弯箱梁;  梁格法;  模态试验

Keywords:

bridge engineering;  continuous bending box girder;  Liang Gefa;  Modal testing

DOI:

10.3969/j.issn.1671-6833.2005.04.005

文献标志码:

A

摘要:

针对大曲率弯钢箱梁桥的动力特性,通过大型有限元程序分别建立单梁模型、梁格模型及板单元模型,进行了数值仿真分析,同时利用力锤冲击法对室内模型进行了模态试验,并将试验结果与数值分析结果进行对比分析.结果表明,单梁法不适于计算横向模态,普通的梁格法可以较好地模拟弯箱桥竖向和扭转的动力性能,但不应考虑主梁静力计算时横向刚度的换算关系,同时论文提出了一种竖向梁格单元划分法,可以较好地计算弯箱梁结构横向的动力性质,证明梁格法模型可以用于计算该类桥梁的动力特性分析.

Abstract:

According to the dynamic characteristics of the large curvature bending steel box girder bridge, the single girder model, the beam lattice model and the plate element model were established through the large finite element program, and the numerical simulation analysis was carried out, and the modal test of the indoor model was carried out by the force hammer impact method, and the test results were compared with the numerical analysis results. The results show that the single girder method is not suitable for calculating the transverse mode, and the ordinary beam lattice method can better simulate the dynamic performance of the vertical and torsional bent box bridge, but the conversion relationship of the transverse stiffness in the static calculation of the main beam should not be considered.

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