[1]周新平,宗雪梅..刚架拱桥荷载横向分布系数研究[J].郑州大学学报(工学版),2007,28(02):101-104.[doi:10.3969/j.issn.1671-6833.2007.02.026]
　ZHOU Xinping,Zong Xuemei.Study on lateral load distribution coefficient of rigid arch bridge[J].Journal of Zhengzhou University (Engineering Science),2007,28(02):101-104.[doi:10.3969/j.issn.1671-6833.2007.02.026]

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刚架拱桥荷载横向分布系数研究()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

28

期数:

2007年02期

页码:

101-104

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Study on lateral load distribution coefficient of rigid arch bridge

作者:

周新平; 宗雪梅.

长安大学,桥梁与隧道陕西省重点实验室,陕西,西安,710064;中交第一公路勘察设计研究院,陕西,西安,710075, 长安大学,桥梁与隧道陕西省重点实验室,陕西,西安,710064;西安市市政设计研究院,陕西,西安,710068

Author(s):

ZHOU Xinping; Zong Xuemei

关键词:

刚架拱桥;  荷载横向分布系数;  结构分析;  变化规律

Keywords:

rigid arch bridges;  load transverse distribution coefficient;  structural analysis;  The law of change

DOI:

10.3969/j.issn.1671-6833.2007.02.026

文献标志码:

A

摘要:

结合刚架拱桥的结构特点,应用大型通用结构分析程序ANSYS建立其空间结构分析模型,利用挠度法求出各计算点的荷载横向分布系数,根据计算结果绘制各种图表,其结果表明刚架拱桥荷载横向分布系数沿桥纵、横向的变化规律不同,采用单一的跨中荷载横向分布系数计算时,将与实际产生较大的偏差;总结刚架拱桥简化计算时荷载横向分布系数的基本取值原则:实腹段梁和中腹孔梁以及主拱腿(含拱脚)可取次边拱片的跨中荷载横向分布系数进行计算;边腹孔梁可偏安全地取中间拱片支点按杠杆原理法求得的荷载横向分布系数进行计算.

Abstract:

Combined with the structural characteristics of rigid arch bridge, ANSYS is used to establish its spatial structure analysis model, using the deflection method to find the lateral distribution coefficient of the load at each calculation point, and drawing various charts according to the calculation results, the results show that the transverse distribution coefficient of the load of the rigid arch bridge has different longitudinal and transverse changes along the longitudinal and transverse laws of the bridge, and when a single transverse load transverse distribution coefficient is calculated, it will have a large deviation from the actual situation. The basic value principle of the transverse load distribution coefficient in the simplified calculation of rigid arch bridge is summarized: the transverse distribution coefficient of the span load of the secondary side arch piece can be calculated by taking the solid abdominal section beam and the middle abdominal hole beam and the main arch leg (including arch foot). The lateral load distribution coefficient obtained by the middle arch support point and the lever principle method can be safely calculated by the side ventral beam.

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