宽幅流线型箱梁涡振性能及制振措施研究

李明; 孙延国; 李明水; 伍波

doi:10.3969/j.issn.0258-2724.2018.04.007

宽幅流线型箱梁涡振性能及制振措施研究

doi: 10.3969/j.issn.0258-2724.2018.04.007

李明^1,2,,
孙延国^1,2, ,,
李明水²,
伍波^1,2

基金项目:

国家自然科学基金资助项目 51408505

交通运输部科技项目 201231835250

详细信息

作者简介:
李明(1990-), 男, 博士研究生, 研究方向为大跨度桥梁抗风, E-mail:liming_bridge@163.com

通讯作者:
孙延国(1981-), 男, 讲师, 研究方向为大跨度桥梁抗风, E-mail:ygsun@swjtu.edu.cn

中图分类号: U441.3
计量
- 文章访问数: 603
- HTML全文浏览量: 230
- PDF下载量: 69
- 被引次数: 0
出版历程
- 收稿日期: 2017-02-01
- 刊出日期: 2018-08-01

Vortex-Induced Vibration Performance of Wide Streamlined Box Girder and Aerodynamic Countermeasure Research

LI Ming^{1,2
,},
SUN Yanguo^{1,2
, ,},
LI Mingshui²,
WU Bo^1,2

摘要

摘要: 为了抑制宽幅流线型箱梁涡激振动，以青山长江大桥（大跨度宽幅流线型钢箱梁斜拉桥）为背景，通过1：50节段模型风洞试验，在低阻尼条件下研究了主梁的涡振性能以及不同气动措施包括风嘴、检修车轨道、导流板、抑振板和检修道栏杆对涡振性能的影响.结果表明：采用外形较锐的风嘴可改善主梁的气动性能；通过改变检修车轨道位置、轨道支架高度及在其两侧设置导流板对抑制涡振效果不明显；在防撞栏杆后按隔五封一方式布置抑振板，可以使竖向涡振振幅降低45%；高透风率的圆形截面检修道栏杆可显著改善主梁的涡振性能，使涡振振幅降低63%，并且该措施不会影响桥梁美观性、便于工程应用.通过1：27大比例尺节段模型风洞试验，对高透风率圆形截面检修道栏杆的抑振措施进行了验证，结果表明该措施可有效抑制宽幅流线型箱梁涡振.
- 流线型箱梁 /
- 涡激振动 /
- 风洞试验 /
- 气动措施
Abstract: To suppress the vortex-induced vibration (VIV) of the wide streamlined box girder, the Qingshan Yangtze River Bridge (a long-span cable-stayed bridge with a wide streamlined box girder) was taken as an example. The study of the VIV performance was carried out through a 1:50 scale section model wind tunnel test. The VIV performance of the girder was studied in a low-damping condition, as well as the effects of various countermeasures on such performance, including wind fairing, inspection vehicle rail, guide vane, vibration mitigation plate, and maintenance way railing. The test results show that a sharp wind fairing is favourable to the VIV performance of the girder. The position of the inspection vehicle rail, the height of rail supporter, and the guide vane slightly suppress the VIV response. The vibration mitigation plate, which was installed behind the anti-collision railing such that five seals off one, can reduce the vertical VIV displacement by 45%. The circular maintenance way railing and the high ventilation rate can improve the VIV of the wide streamlined box girder significantly. In particular, the displacement was reduced by 63%. The recommended railing style does not affect the aesthetic of the bridge and is convenient to apply. A 1:27 scale section model test was conducted to verify the countermeasure. The test results show that the recommended maintenance way railing can suppress the VIV of the wide streamlined box girder effectively.
- streamlined box girder /
- vortex-induced vibration /
- wind tunnel test /
- aerodynamic countermeasure

HTML全文

图 1 主梁横断面

Figure 1. Cross-section of the main girder

下载: 全尺寸图片幻灯片

图 2 原断面主梁涡振振幅(缩尺比1:50)

Figure 2. VIV displacement of the main girder with original deck (scale ratio: 1:50)

下载: 全尺寸图片幻灯片

图 3 原风嘴及工况1~4的风嘴形状

Figure 3. Wind fairing of original deck and cases 1 - 4

下载: 全尺寸图片幻灯片

图 4 检修道栏杆示意

Figure 4. Sketch of the maintenance way railing

下载: 全尺寸图片幻灯片

图 5 检修道栏杆对竖向涡振振幅的影响

Figure 5. Effect of maintenance way railing on the vertical VIV displacement

下载: 全尺寸图片幻灯片

图 6 采用高透风率圆形检修道栏杆的主梁竖向涡振振幅

Figure 6. Vertical VIV displacement of the main girder with the circular shape maintenance way railing in high ventilation rate

下载: 全尺寸图片幻灯片

图 7 原主梁断面竖向涡振振幅

Figure 7. Vertical VIV displacement of the girder with original deck

下载: 全尺寸图片幻灯片

图 8 工况21大比例尺节段模型竖向涡振振幅

Figure 8. Vertical VIV displacement of case 21 in the large-scale model test

下载: 全尺寸图片幻灯片

表 1 节段模型主要试验参数

Table 1. Main test parameters of the section model

一阶模态	实桥				模型				风速比
一阶模态	频率 /Hz	阻尼比 /%	等效质量 /(kg·m^-1)	等效质量惯矩 /(kg·m)	频率 /Hz	阻尼比 /%	等效质量 /(kg·m^-1)	等效质量惯矩 /(kg·m)	风速比
对称竖弯	0.213	—	47 158	—	2.873	0.362	18.863	—	3.707
对称扭转	0.559	—	—	7 777 960	7.342	0.351	—	1.244	3.807

下载: 导出CSV

表 2 风嘴形状对竖向涡振振幅的影响

Table 2. Effect of wind fairing on the vertical VIV displacement

工况	竖向涡振振幅最大值/mm
原断面	296.2
1	314.6
2	261.5
3	463.1
4	452.7

下载: 导出CSV

表 3 检修车轨道及导流板抑振措施

Table 3. Mitigation measures of inspection vehicle rail and guide vane

抑振措施	图示	工况
去掉检修车轨道		工况5:去掉检修车轨道
检修车轨道位于斜腹板		工况2:B=4.1 m, H=0.48 m 工况6:B=4.1 m, H=0.70 m 工况7:B=5.2 m, H=0.48 m 工况8:B=6.0 m, H=0.48 m 工况9:B=7.2 m, H=0.48 m
检修车轨道位于底板		工况10:B=3.0 m, H=0.48 m 工况11:B=3.0 m, H=0.70 m
检修车轨道安装导流板		工况12:B=4.1 m, H=0.48 m L=2.2 m, α = 162° 工况13:B = 4.1 m, H = 0.70 m L = 2.2 m, α = 162°

下载: 导出CSV

表 4 检修车轨道对竖向涡振振幅的影响

Table 4. Effect of inspection vehicle rail on the vertical VIV displacement

工况	竖向涡振振幅最大值/mm
5	106.1
6	268.7
7	247.5
8	238.6
9	232.5
10	240.4
11	242.5
12	223.5
13	228.7

下载: 导出CSV

表 5 抑振板对竖向涡振振幅的影响

Table 5. Effect of vibration mitigation plate on the vertical VIV displacement

工况	竖向涡振振幅最大值/mm
14	235.4
15	190.9
16	178.2
17	162.3
18	194.1

下载: 导出CSV

表 6 大比例尺节段模型主要试验参数

Table 6. Main test parameters of the large-scale section model

参数名称	实桥	模型
等效质量/(kg·m^-1)	47 158	64.688
竖弯频率/Hz	0.213	3.353
竖弯阻尼比/%	—	0.370

下载: 导出CSV

参考文献(16)

LAIMA Shuijin, LI Hui, CHEN Wenli, et al. Investigation and control of vortex-induced vibration of twin box girders[J]. Journal of Fluids and Structures, 2013, 39(5):205-221. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=9940fea79a32ed3b3f74f7417325fc52

孙延国, 廖海黎, 李明水.基于节段模型试验的悬索桥涡振抑振措施[J].西南交通大学学报, 2012, 47(2):218-223. http://manu19.magtech.com.cn/Jweb_xnjd/CN/abstract/abstract11575.shtml

SUN Yanguo, LIAO Haili, LI Mingshui. Mitigation measures of vortex-induced vibration of suspension bridge based on section model test[J]. Journal of Southwest Jiaotong University, 2012, 47(2):218-223. http://manu19.magtech.com.cn/Jweb_xnjd/CN/abstract/abstract11575.shtml

刘君, 廖海黎, 万嘉伟, 等.检修车轨道导流板对流线型箱梁涡振的影响[J].西南交通大学学报, 2015, 50(5):789-795. doi: 10.3969/j.issn.0258-2724.2015.05.004

LIU Jun, LIAO Haili, WAN Jiawei, et al. Effect of guide vane beside maintenance rail on vortex vibration of streamlined box girder[J]. Journal of Southwest Jiaotong University, 2015, 50(5):789-795. doi: 10.3969/j.issn.0258-2724.2015.05.004

王骑, 林道锦, 廖海黎, 等.分体式钢箱梁涡激振动特性及制振措施风洞试验研究[J].公路, 2013(7):294-299. doi: 10.3969/j.issn.0451-0712.2013.07.067

WANG Qi, LIN Daojin, LIAO Haili, et al. Investigation on the vortex-induced vibration and aerodynamic counter measures of twin box bridge by wind tunnel tests[J]. Highway, 2013(7):294-299. doi: 10.3969/j.issn.0451-0712.2013.07.067

管青海, 李加武, 胡兆同, 等.栏杆对典型桥梁断面涡激振动的影响研究[J].振动与冲击, 2014, 33(3):150-156. doi: 10.3969/j.issn.1000-3835.2014.03.029

GUAN Qinghai, LI Jiawu, HU Zhaotong, et al. Effects of railings on vortex-induced vibration of a bridge deck section[J]. Journal of Vibration and Shock, 2014, 33(3):150-156. doi: 10.3969/j.issn.1000-3835.2014.03.029

EL-GAMMAL M, HANGAN H, KING P. Control of vortex shedding-induced effects in a sectional bridge model by spanwise perturbation method[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2007, 95(8):663-678. doi: 10.1016/j.jweia.2007.01.006

BATTISTA R C, PFEIL M S. Reduction of vortex-induced oscillations of Rio-Niterói bridge by dynamic control devices[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2000, 84(3):273-288. doi: 10.1016/S0167-6105(99)00108-7

FUJINO Y, YOSHIDA Y. Wind-induced vibration and control of Trans-Tokyo Bay crossing bridge[J]. Journal of Structural Engineering, 2002, 128(8):1012-1025. doi: 10.1061/(ASCE)0733-9445(2002)128:8(1012)

郭增伟, 葛耀君, 卢安平.竖弯涡振控制的调谐质量阻尼器TMD参数优化设计[J].浙江大学学报:工学版, 2012, 46(1):8-13. http://d.old.wanfangdata.com.cn/Conference/7486167

GUO Zengwei, GE Yaojun, LU Anping. Parameter optimization of TMD for vortex-induced vibration control[J]. Journal of Zhejiang University:Engineering Science, 2012, 46(1):8-13. http://d.old.wanfangdata.com.cn/Conference/7486167

LARSEN A, SVENSSON E, ANDERSEN H. Design aspects of tuned mass dampers for the Great Belt East Bridge approach spans[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1995, 54/55(2):413-426. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=afd2c2b3481f42efc80e5847ca5f5f46

中交公路规划设计院. JTG/TD 60-01-2004公路桥梁抗风设计规范[S].北京: 人民交通出版社, 2004.

Highway Agency. BD 49/01 Design manual for roads and bridges (part 3) design rules for aerodynamic effects on bridges[S]. England: [s.n.], 2001.

LARSEN A. Aerodynamic aspects of the final design of the 1624 m suspension bridge across the great belt[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1993, 48(2):261-285. http://www.sciencedirect.com/science/article/pii/016761059390141A/pdf?md5=470319a0e159200395bf6e3335b0a745&pid=1-s2.0-016761059390141A-main.pdf

钱国伟, 曹丰产, 葛耀君. Π型叠合梁斜拉桥涡振性能及气动控制措施研究[J].振动与冲击, 2015, 34(2):176-181. http://d.old.wanfangdata.com.cn/Periodical/zdycj201502032

QIAN Guowei, CAO Fengchan, Ge Yaojun. Vortex-induced vibration performance of cable-stayed bridge with Π shaped composite deck and its aerodynamic control measures[J]. Journal of Vibration and Shock, 2015, 34(2):176-181. http://d.old.wanfangdata.com.cn/Periodical/zdycj201502032

王骑, 廖海黎, 李明水, 等.流线型箱梁气动外形对桥梁颤振和涡振的影响[J].公路交通科技, 2012, 29(8):44-70. doi: 10.3969/j.issn.1002-0268.2012.08.008

WANG Qi, LIAO Haili, LI Mingshui, et al. Influence of aerodynamic shape of streamlined box girder on bridge flutter and vortex-induced vibration[J]. Journal of Highway and Transportation Research and Development, 2012, 29(8):44-70. doi: 10.3969/j.issn.1002-0268.2012.08.008

NAGAO F, UTSNUOMIYA H, YOSHIOKA E, et al. Effects of handrails on separated shear flow and vortex-induced oscillation[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1997, 71(8):819-827. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=d910161bdc3562f30525fe2a3c90f185

施引文献

附加材料(0)

访问统计