分离双扁平箱梁气动力干扰效应研究

李少杰; 刘小兵; 杨群; 刘庆宽; 马文勇

doi:10.6052/j.issn.1000-4750.2016.03.S008

分离双扁平箱梁气动力干扰效应研究

李少杰¹,
刘小兵^2,3,,
杨群¹,
刘庆宽^2,3,
马文勇^2,3

1.
石家庄铁道大学土木工程学院, 石家庄 050043;
2.
石家庄铁道大学大型结构健康诊断与控制研究所, 石家庄 050043;
3.
河北省大型结构健康诊断与控制重点实验室, 石家庄 050043

基金项目: 国家自然科学基金项目（51308359）；河北省高等学校科学技术研究基金项目（QN20131169，QN2015213）

详细信息

作者简介:
李少杰(1990―),男,河北人,硕士生,主要从事桥梁抗风研究(E-mail:li_shao_jie_123@163.com);杨群(1981―),女,湖南人,讲师,硕士,从事桥梁工程研究(E-mail:quny123@126.com);刘庆宽(1971―),男,河北人,教授,博士,博导,主要从事桥梁与结构的风荷载、风致振动与控制研究(E-mail:lqk@stdu.edu.cn);马文勇(1981―),男,陕西人,副教授,博士,主要从事结构抗风研究(E-mail:mawenyong@126.com).

通讯作者:
刘小兵(1982―),男,湖南人,副教授,博士,主要从事桥梁的风致振动与控制研究(E-mail:x_b_liu@126.com).

中图分类号: U441+;U446
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出版历程
- 收稿日期: 2016-03-28
- 修回日期: 2017-01-06
- 刊出日期: 2017-06-24

STUDY ON INTERFERENCE EFFECT OF AERODYNAMIC FORCE OF TWIN SEPARATE FLAT BOX GIRDERS

1.
School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
2.
Structure Health Monitoring and Control Institute, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
3.
Key Laboratory of Structural Health Diagnosis and Control of Hebei Province, Shijiazhuang 050043, China

摘要

摘要: 通过节段模型风洞试验研究了分离双扁平箱梁气动力的干扰效应，得到了气动力系数干扰因子随间距的变化曲线。研究结果表明：上游箱梁阻力系数的干扰效应不明显，下游箱梁阻力系数的干扰效应在D/B≥2（D/B为双箱梁的净间距与单幅箱梁宽之比）时基本可以忽略，在D/B < 2时为减小效应，间距越小，减小效应越显著；下游箱梁升力系数的干扰效应不明显，上游箱梁升力系数的干扰效应在D/B≥2时基本可以忽略，在D/B < 2时为减小效应。
- 分离双扁平箱梁 /
- 风洞试验 /
- 气动力系数 /
- 干扰效应 /
- 间距
Abstract: The interference effect of aerodynamic forces of twin separate flat box girders were investigated by wind tunnel tests of sectional models. The interference-factor changing curves of aerodynamic coefficients versus separate distance were obtained. The research results show that the interference effect of drag coefficient of a forward box girder is slight. The interference effect of drag coefficient of a leeward box girder can be neglected when D/B≥2 and can be recognized as a reducing effect when D/B< 2. This reducing effect is more remarkable for a small distance. The interference effect of lift coefficient of a leeward box girder is slight. The interference effect of lift coefficient of a forward box girder can be neglected when D/B≥2 and can be recognized as a reducing effect when D/B< 2.
- twin separate flat box girder /
- wind tunnel test /
- aerodynamic coefficient /
- interference effect /
- distance

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参考文献(10)

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施引文献(4)

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分离双扁平箱梁气动力干扰效应研究

通讯作者: 刘小兵(1982―),男,湖南人,副教授,博士,主要从事桥梁的风致振动与控制研究(E-mail:x_b_liu@126.com).

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STUDY ON INTERFERENCE EFFECT OF AERODYNAMIC FORCE OF TWIN SEPARATE FLAT BOX GIRDERS

期刊类型引用(3)

其他类型引用(1)

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目录

通讯作者:
刘小兵(1982―),男,湖南人,副教授,博士,主要从事桥梁的风致振动与控制研究(E-mail:x_b_liu@126.com).