A study on aerodynamic force characteristics of a special-shaped landscape bridge based on a rigid model pressure measurement test of an overall bridge
LIU Xiaobing1,2,3，JIANG Huimin3，ZHAO Yucheng3，YANG Qun1,2,3
1. State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
2. Innovation Center for Wind Engineering and Wind Energy Technology of Hebei Province, Shijiazhuang 050043, China;
3. School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
Abstract：In the design of landscape bridge, it always pursues novel structure and unique shape. Because of the complexity, it is not suitable to study the aerodynamic force characteristics of special-shaped landscape bridge by wind tunnel test on sectional model. Taking a special-shaped landscape bridge in China as the engineering background, the aerodynamic force characteristics of the curved variable cross-section girder with awning and the inclined variable cross-section bridge tower with sightseeing platform are studied by rigid model pressure measurement test of overall bridge. The results show that the aerodynamic forces subjected to girder and awning are in the same direction at most incidence angles and reach the maximum near the orthogonal wind. The drag coefficient of single pylon reaches the maximum when α=0° (inclined direction of the pylon flow), and the maximum lift coefficient of the upper and lower part of the single pylon occurs around α=90° (cross bridge flow) and α=140°, respectively. Aerodynamic interference of the girder and the sightseeing platform will reduce the local aerodynamic coefficient of the pylon. The aerodynamic force coefficients of the sightseeing platform along the bridge and across the bridge reach the maximum near α=180° (opposite inclined direction of the pylon flow) and α=110°, respectively.
刘小兵1,2,3，姜会民3，赵煜程3，杨群1,2,3. 基于全桥刚性模型测压试验的异形景观桥气动力特性研究[J]. 振动与冲击, 2021, 40(24): 144-153.
LIU Xiaobing1,2,3，JIANG Huimin3，ZHAO Yucheng3，YANG Qun1,2,3. A study on aerodynamic force characteristics of a special-shaped landscape bridge based on a rigid model pressure measurement test of an overall bridge. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(24): 144-153.
[1] 许福友, 谭岩斌, 张哲. 某人行景观悬索桥抗风性能试验研究[J]. 振动与冲击, 2009, 28(7): 143-144.
Xu Fu-you, Tan Yan-bin Zhang Zhe. Wind-resistant performance of one land scape suspension footbridge [J]. Journal of Vibration and Shock, 2009, 28(7): 143-144.
[2] Nakamura S. I. Field measurement of lateral vibration on pedestrian suspension bridge[J]. Structural Engineer, 2003, 81(22): 22-26.
[3] Tanaka T, Yoshimura T, Gimsing N J, et al. Study on Improving the Design of Hybrid Stress-Ribbon Bridge and Their Aerodynamic Stability[J]. Journal of Wind Engineering and Industrial Aerodynamic, 2002, 90(12): 1995-2006.
[4] 祝志文, 陈魏, 袁涛. 桥梁主梁CFD模拟之基准模型测压试验与气动特性分析[J]. 中国公路学报, 2016, 29(11): 49-56.
Zhu Zhi-wen, Chen Wei, Yuan Tao. Pressure measurement and aerodynamics investigation on benchmark model of bridge girder for CFD simulation[J]. China Journal of Highway and Transport, 2016, 29(11):49-56.
[5] 李明, 孙延国, 李明水, 周强. 非对称П型梁和流线型箱梁气动性能风洞试验研究[J]. 振动与冲击, 2019, 38(08): 54-60.
Li Ming, Sun Yan-guo, Li Ming-shui, Zhou Qiang. A study on the aerodynamic characteristics of an asymmetric П shaped girder and an asymmetric streamlined box girder via a wind tunnel test[J]. Journal of Vibration and Shock, 2019, 38(08): 54-60.
[6] Ma, C., Liu, Y., Yeung, N., Li, Q., 2019. Experimental Study of Across-Wind Aerodynamic Behavior of a Bridge Tower. Journal of Bridge Engineering 24, 04018116.
[7] Belloli, M., Fossati, F., Giappino, S., Muggiasca, S., Villani, M., 2011. On the aerodynamic and aeroelastic response of a bridge tower. Journal of Wind Engineering and Industrial Aerodynamics 99, 729-733.
[8] 李永乐, 徐昕宇, 郭建明, 向活跃, 陈克坚. 六线双层铁路钢桁桥车桥系统气动特性风洞试验研究[J]. 工程力学, 2016, 33(04): 130-135.
Li Yong-le, Xu Xin-yu, Guo Jian-ming, Xiang Huo-yue, Chen Ke-jian. Wind tunnel tests on aerodynamic characteristics of vehicle-bridge system for six-track double-deck steel-truss railway bridge[J]. Engineering mechanics, 2016, 33(04): 130-135.
[9] 刘昊苏, 雷俊卿. 大跨度双层桁架主梁三分力系数识别[J]. 浙江大学学报(工学版), 2019, 53(06): 1092-1100.
Liu Hao-su, Lei Jun-qing. Identification of three-component coefficients of double deck truss girder for long-span bridge[J]. Journal of Zhejiang University (Engineering Science), 2019, 53(06): 1092-1100.
[10] 张志杰, 李永乐, 向活跃, 房忱. 串列六边形截面桥塔气动干扰效应研究[J]. 铁道标准设计, 2019, 63(11): 75-79.
Zhang Zhi-jie, Li Yong-le, Xiang Huo-yue, Fang Chen. Research on Aerodynamic Interference Effect of Tower with Tandem Hexagonal Section[J]. Railway standard design, 2019, 63(11): 75-79.
[11] 洪成晶, 郑史雄, 陈志强, 周强, 唐煜, 袁达平. 基于CFD的菱形截面门式桥塔驰振特性数值模拟[J]. 铁道建筑, 2018, 58(12): 12-16.
Hong Cheng-jing, Zheng Shi-xiong, Chen zhi-qiang, Zhou Qiang, Tang Yu, Yuan Da-ping. Numerical simulation on galloping performance of portal- type bridge pylon with rhombus section based on CFD[J]. Railway engineer, 2018, 58(12): 12-16.
[12] 李加武, 宋特, 林立华, 姬乃川, 霍五星. 变截面连续钢箱梁桥静气动性能研究[J]. 公路交通科技, 2020, 37(04): 88-95.
Li Jia-wu, Song Te, Lin Li-hua, Ji Nai-chuan, Huo Wu-xing. Study on aerodynamic performance of a Continue steel box girder bridge with variable section[J]. Journal of highway and transportation research and development 2020, 37(04): 88-95.
[13] 李永乐, 刘多特, 李少波, 崔铁万. 独柱式变截面倾斜桥塔气动特性风洞试验研究[J]. 实验流体力学, 2013, 27(05): 38-43.
Li Yong-le, Liu Duo-te, Li Shao-bo, Cui Tie-wan. Wind tunnel test on aerodynamic characteristics of inclined single-column pylons with variable cross section[J]. Journal of Experiments in Fluid Mechanics, 2013, 27(05): 38-43.
[14] 何旭辉, 方东旭, 王汉封, 李欢. 超高多肢斜拉桥桥塔气动力系数研究[J]. 中国铁道科学, 2017, 38(04): 24-32.
He Xu-hui, Fang Dong-xu, Wang Han-feng, Li Huan. Studyon aerodynamic coefficient of ultrahigh multi-limb cable-stayed bridge tower[J]. China railway science, 2017, 38(04): 24-32.
[15] 郑亮, 王达磊, 艾辉林. 复杂造型桥塔风荷载的数值风洞模拟[J]. 结构工程师, 2011, 27(02): 90-94.
Zheng Liang, Wang Da-lei, Ai Hui-lin. Numerical wind tunnel of wind loads on a complex shaped bridge tower[J]. Structural engineers, 2011, 27(02): 90-94.
[16] 李喆. 桥梁风洞试验指南[M]. 北京：人民交通出版社, 2018.
Li Zhe. Guilding for Wind Tunnel Testing of Bridge[M]. Beijing: China Communications Press, 2018.
[17] 黄林, 董佳慧, 王骑, 李志国, 高贵, 李世文. 矩形钢箱梁铁路斜拉桥涡振性能及气动控制措施研究[J]. 振动与冲击, 2021, 40(06): 23-32+85.
Huang Lin, Dong Jia-hui, Wang Qi, Li Zhi-guo, Gao Gui, Li Shi-wen. Vortex-induced vibration performance of a cable-stayed railway bridge with rectangular steelbox girder and its aerodynamic countermeasure[J], Journal of Vibration and Shock, 2021, 40(06): 23-32+85.
