Experimental study on the hysteretic performance of bolted lap joints of a transmission tower
LI Jiaxiang1,2,3,4，ZHANG Chao1，CHENG Jinpeng1，GU Xiaowei1，WANG Hao1，JIANG Wenqiang2
1.School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China;
2.Hebei Key Laboratory of Electric Machinery Health Maintenance & Failure Prevention, North China Electric Power University, Baoding 071003, China;
3.State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;
4.Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning 530004, China
Abstract：During the vibration of the transmission tower, the joints often bear cyclic loading. To study the mechanical properties of typical bolted joints of transmission towers under reciprocating load, twenty-one groups of typical bolted joint specimens were designed. Through 3 groups of monotonic loading tests and 18 groups of low cyclic loading tests, the load-displacement curves of the joint specimens were obtained. The effects of load types and joint parameters on the mechanical properties of bolted joints were studied, and the mechanical behavior of the joints under cyclic loading was analyzed. The results show that the load type has little effect on the failure mode and slip load of the joint, mainly affecting the ultimate load of the joint and its corresponding displacement. The difference between test and simulation results is caused by the uncertainty of bolt position in the bolt hole and the inconsistency of multi-bolt behavior. The strength of bolted joints increases with the increase of bolt diameter and grade, but the hole spacing has little effect on it. The ultimate bearing capacity of joints increases with the increase of the number of bolts, but not all of them increase linearly. The results provide a reference for the mechanical analysis of transmission towers.
李嘉祥1,2,3,4，张超1，程金鹏1，顾晓薇1，王浩1，江文强2. 输电塔螺栓搭接节点滞回性能试验研究[J]. 振动与冲击, 2023, 42(22): 10-18.
LI Jiaxiang1,2,3,4，ZHANG Chao1，CHENG Jinpeng1，GU Xiaowei1，WANG Hao1，JIANG Wenqiang2. Experimental study on the hysteretic performance of bolted lap joints of a transmission tower. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(22): 10-18.
[1] 赵超, 赵家钰, 孙清,等. 环境激励下输电塔动力特性参数识别[J]. 振动与冲击, 2021, 40(04): 30-35.
ZHAO Chao, ZHAO Jia-yu, SUN Qing, et al. A study on identification of dynamic characteristic parameters of a transmission tower under ambient excitations[J]. Journal of Vibration and Shock, 2021, 40(04): 30-35.
[2] 田利，董旭，周梦瑶，等. 输电塔-线体系抗震研究综述[J]. 世界地震工程，2020，36(3)：201-212.
TIAN Li, DONG Xu, ZHOU Meng-yao, et al. Review of seismic research on transmission tower-line systems[J]. World Earthquake Engineering, 2020, 36(3): 201-212.
[3] 张卓群，李宏男，李士锋，等. 输电塔-线体系灾变分析与安全评估综述[J]. 土木工程学报，2016，49(12): 75-88.
ZHANG Zhuo-qun, LI Hong-nan, LI Shi-feng, et al. Disaster analysis and safety assessment on transmission tower-line system: an overview[J]. China Civil Engineering Journal, 2016, 49(12): 75-88.
[4] An L, Wu J, Jiang W, et al. Experimental and Numerical Study of the Axial Stiffness of Bolted Joints in Steel Lattice Transmission Tower Legs[J]. Engineering Structures, 2019, 187: 490-503.
[5] 周嘉程. 下击暴流作用下输电塔响应数值模拟与易损性分析[D]. 黑龙江: 哈尔滨工业大学, 2020.
ZHOU Jia-cheng. Numerical simulation and vulnerability analysis of transmission tower under downburst[D]. Heilongjiang: Harbin Institute of Technology.
[6] Peterson W. Design of EHV steel tower transmission lines[J]. ASCE Power Division Journal, 1962, 88(1): 39-65.
[7] Ungkurapinan N, Chandrakeerthy S, Rajapakse R, et al. Joint slip in steel electric transmission towers[J]. Engineering Structures, 2003, 25(6): 779-787.
[8] Jiang W, Wang Z, Mcclure G, et al. Accurate modeling of joint effects in lattice transmission towers[J]. Engineering Structures, 2011, 33(5): 1817-1827.
[9] Jiang W, Liu Y, Chan S, et al. Direct analysis of an ultrahigh-voltage lattice transmission tower considering joint effects[J]. Journal of Structural Engineering, 2017, 143(5): 4017009.
[10] 杨风利，朱彬荣，邢海军. 输电铁塔螺栓节点连接滑移特性及模型参数研究[J]. 工程力学，2017，34(10): 116-127.
YANG Feng-li, ZHU Bin-rong, XING Hai-jun. The slip characteristics and parametric study of bolted connections fortransmission towers[J]. Engineering Mechanics, 2017, 34(10): 116-127.
[11] An L, Wu J, Jiang W, et al. Experimental and numerical study of the axial stiffness of bolted joints in steel lattice transmission tower legs[J]. Engineering Structures, 2019, 187: 490-503.
[12] Li B, Zhang Y. A new joint-slippage model for galvanized steel bolted joints with slippage[J]. Structures, 2021, 34: 1034-1047.
[13] Gan Y, Deng H, Li C, et al. Y simplified joint-slippage model of bolted joint in lattice transmission tower[J]. Structures, 2021, 32(8): 1192-1206.
[14] Balagopal R, Ramaswamy A, Palani G, et al. Simplified bolted connection model for analysis of transmission line towers[J]. Structures, 2020, 27: 2114-2125.
[15] Liu X, Bradford M, Wang J. Load-slip behaviour of single-leg bolted angle steel connections at elevated temperatures[J]. Structures, 2022, 43: 1018-1041.
[16] Li J, Mcclure G, Wang S. Ensuring the structural safety of overhead transmission lines by design[J]. Journal of Aerospace Engineering, 2021, 34(3): 4021010.
[17] Li J, Zhang C, Wang S, et al. Numerical study on the mechanical properties of transmission tower K-joints under cyclic loading[J]. Shock and Vibration, 2021:7403365.
[18] 李嘉祥，王彪，孙健，等. 输电塔螺栓节点滞回特性数值模拟研究[J]. 东北大学学报（自然科学版），2020，41(11): 1633-1639.
LI Jia-xiang, WANG Biao, SUN Jian, et al. Numerical simulation study on hysteresis characteristics of transmission tower bolt joints[J]. Journal of Northeastern University( Natural Science), 2020, 41(11): 1633-1639.
[19] Ma L, Bocchini P. Hysteretic model of single-bolted angle connections for lattice steel towers[J]. Journal of Engineering Mechanics, 2019, 145(8): 04019052.
[20] Yaghoobi S, Shooshtari A. Joint slip formulation based on experimental results in wind turbine lattice towers[J]. Journal of Structural Engineering, 2018, 144(6): 04018058.
[21] 张殿生. 电力工程高压送电线路手册[M]. 北京: 中国电力出版社，2002.
ZHANG Diansheng. Handbook of high voltage transmission lines in power engineering[M].Beijing: China Electric Power Press, 2022.
[22] 杨风利, 王旭明, 朱彬荣. 低温及大温差区输电铁塔螺栓扭矩及横向振动试验研究[J]. 振动与冲击, 2020, 39(12): 257-264.
YANG Feng-li, WANG Xu-ming, ZHU Bin-rong. An experimental study on the construction torque and transversal vibration of bolted joints of transmission towers in lw temperature regions with high temperature difference[J]. Journal of Vibration and Shock, 2020, 39(12): 257-264.
[23] JGJ82-2011. 钢结构高强度螺栓连接技术规程[S]. 北京: 中国建筑工业出版社, 2011.
JGJ82-2011. Technical specification for high strength bolt connections of steel structures[S]. Beijing: China Architecture & Building Press, 2011.
[24] JGJ/T101-2015. 建筑抗震试验规程[S]. 北京: 中国建筑工业出版社，2015.
JGJ/T101-2015. Specification for seismic test of buildings[S]. Beijing: China Architecture & Building Press, 2015.
