Experimental Study of Buffeting Response for Joint System of Steel Pylon and Tower Crane

被引：0
|
作者：
Ma R. [1 ]
Li F. [1 ]
Hu X. [1 ]
Ding L. [2 ]
机构：
[1] College of Civil Engineering, Tongji University, Shanghai
[2] China Design Group Co, Ltd, Nanjing
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2021年 / 48卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Buffeting; Free-standing state; Steel pylon; Tower cranes; Wind tunnels; Wind yaw angle;
D O I：
10.16339/j.cnki.hdxbzkb.2021.01.010
中图分类号：
学科分类号：
摘要：
In order to clarify the buffeting performance of the joint system composed of free-standing steel pylon and tower crane as well as the effect of tower crane on the buffeting response of steel pylon, wind tunnel tests of aeroelastic model of the joint system and free-standing pylon are designed and carried out. Modal parameters and buffeting performance under different wind speeds and wind yaw angles of the two systems are obtained. The effects of wind speed and wind yaw angle on the two systems are summaried and compared, and the vibration responses of the joint system between tower crane and steel pylon in both longitudinal direction and lateral direction are compared in the end. The results show that the mean value of wind-induced buffeting displacement of steel pylon and tower crane can be approximately treated as a quadratic function of wind speed, while the standard deviation of displacement oscillates back and forth with the increase of wind speeds, and the existence of tower crane can decrease the mean value and standard deviation of wind-induced buffeting displacement of steel pylon significantly. Wind yaw angle has obvious effects on the wind-induced response of steel pylon and tower crane. The vibration response of the tower crane is much larger than that of pylon in longitudinal direction of bridge, but it is a little smaller in lateral direction due to the local vibration of tower crane. © 2021, Editorial Department of Journal of Hunan University. All right reserved.
引用
收藏
页码：92 / 99
页数：7
相关论文
共 15 条
  • [1] ZHU M Y, LU Y D., Damping ratio test and analysis of steel pylon of Taizhou Bridge, Journal of Highway and Transportation Research and Development(Application Technology Edition), 10, 12, pp. 222-226, (2014)
  • [2] WANG Z W, ZHU H P, LIAO H L, Et al., Vortex-induced vibration reduction of steel free-stangding tower using tuned liquid damper, Journal of Huazhong University of Science and Technology (Urban Science Edition), 26, 2, pp. 9-11, (2009)
  • [3] MA T T, GE Y J, ZHAO L., Wind-resistant behavior of a long span cable-stayed bridge during construction, Journal of Vibration and Shock, 32, 12, pp. 100-104, (2013)
  • [4] ZHANG Z T, WU X B, GE Y J, Et al., Wind induced internal resonance and the control method of suspension bridge hangers, Journal of Hunan University(Natural Sciences), 43, 1, pp. 11-19, (2016)
  • [5] TAO T Y, WANG C F, WANG H, Et al., Buffeting control of the free-standing tower of a super-long-span cable-stayed bridge using MTMD, Acta Aerodynamica Sinica, 33, 5, pp. 678-685, (2015)
  • [6] SUN C L., Buffeting analysis for long-span cable-stayed bridge tower in mountain area, pp. 1-8, (2013)
  • [7] WANG T N, MA L, LIU J X, Et al., Time-domain buffeting analysis of the tower of long-span bridges on the basis of mixed programming, Journal of Chang'an University (Natural Science Edition), 29, 3, pp. 68-72, (2009)
  • [8] ZHOU Q, ZHU L D, GUO Z S., Comparison on buffeting performance of typical pylons under skew wind, Journal of Southeast University (Natural Science Edition), 39, S2, pp. 126-132, (2009)
  • [9] HU Q A, QIAO Y Q, LIU J X, Et al., Buffeting performance of bridge tower under yawed wind during construction, Journal of Traffic and Transportation Engineering, 8, 2, pp. 40-43, (2008)
  • [10] CHE X, LI J W, GAO F, Et al., Wind tunnel test and analysis of buffeting performance of free-standing pylon of cable-stayed bridge under skew wind, Journal of Highway and Transportation Research and Development, 29, 10, pp. 84-87, (2012)
12