[1]高亮,刘健新,郭威..附加气动措施后箱梁断面三分力系数试验研究[J].郑州大学学报(工学版),2012,33(02):67-71.[doi:10.3969/j.issn.1671-6833.2012.02.017]
　GAO Liang,LIU Jianxin,GUO Wei.Experimental Study of Three.Component Force Coeffcients of Bridge Deck Section[J].Journal of Zhengzhou University (Engineering Science),2012,33(02):67-71.[doi:10.3969/j.issn.1671-6833.2012.02.017]
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附加气动措施后箱梁断面三分力系数试验研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
33卷
期数:
2012年02期
页码:
67-71
栏目:
出版日期:
2012-03-10

文章信息/Info

Title:
Experimental Study of Three.Component Force Coeffcients of Bridge Deck Section
作者:
高亮; 刘健新; 郭威.
西安理工大学土木建筑工程学院,陕西西安710048;长安大学公路学院,陕西西安710064, 长安大学公路学院,陕西西安,710064
Author(s):
GAO Liang; LIU Jianxin; GUO Wei
1.School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China; 2. Highway School,Chang’an University,Xi’an 710064,China
关键词:
箱梁断面;  三分力系数;  节段模型;  导流板;  中央槽
Keywords:
box girder cross-section;  three-component force coeffcient;  section model;  guide plate;  central trough
分类号:
U448.27
DOI:
10.3969/j.issn.1671-6833.2012.02.017
摘要:
通过节段模型风洞试验,研究某大桥各种抗风气动措施对静力三分力系数的影响,以期改善结构受力特性.以导流板位置、中央槽开孔率、栏杆透风率、检修车轨道位置、风障、车辆作为分析三分力系数的影响因素.研究表明:三分力系数的改变直接影响到静风荷载,这些参数的变化对主梁静风荷载的影响不容忽视.其中风障对主梁阻力系数的影响最为明显,在大攻角时主梁阻力系数在成桥有风障状态显著增大.
Abstract:
Through the section model wind tunnel test, this Paper studies the influence of vibration dampingmeasure to the three-component force coefficient of the structure , in order to improve structural characteristics.The research based on the guide plate position, the central trough opening rate, baluster drafty rate, repair cartrack position , windbreak , vehicle as the influencing factors of three-component force coeficient. The resulteshow that the changes of the three-component force coeficients directly affect the static wind loads, and the in.fluence of changes of these parameters to the static wind load can not be ignored. The most obvious influencepavement to drag coeficient is windbreak, in the large attack angle, the resistanee coefficient rose of comple-ted status with windbreak.

相似文献/References:

[1]李利军,胡兆同,曲立清..青岛海湾大桥大沽河航道桥静风稳定性分析[J].郑州大学学报(工学版),2011,32(04):8.[doi:10.3969/j.issn.1671-6833.2011.04.003]

更新日期/Last Update: 1900-01-01