输电铁塔主材螺栓连接节点半刚性研究
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摘要
输电铁塔主材通常由多段角钢采用螺栓连接而成,由于螺栓预紧力较小,连接滑移现象十分普遍,这对螺栓连接节点的轴向刚度产生影响。针对500 k V输电铁塔中4种典型的螺栓连接节点,建立其精细有限元模型,采用侵入法模拟螺栓预紧力,通过仿真模拟得到节点的荷载-位移曲线,研究不同排数、不同孔径的螺栓连接节点的半刚性,并进行真型试验验证,为输电铁塔结构的精细分析提供基础。
The main member of lattice transmission tower is usually made of angle steel with bolted joints. Because of the small preload,the joint slippage process of bolted joint is very common,which will affect the axial stiffness of the bolted joints of the transmission tower. In the paper,the finite element model of four kinds of typical main member bolted joints in the 500 k V transmission tower were simulated. And the preload of bolts was simulated by intrusion method. The loaddeformation process and the semi-rigid of the bolted joints with different row numbers and different pore diameters were studied through the simulation. After that the typical bolted joints were verified by full-scale experiment,which could provide the basis for the advanced analysis of the transmission tower.
The main member of lattice transmission tower is usually made of angle steel with bolted joints. Because of the small preload,the joint slippage process of bolted joint is very common,which will affect the axial stiffness of the bolted joints of the transmission tower. In the paper,the finite element model of four kinds of typical main member bolted joints in the 500 k V transmission tower were simulated. And the preload of bolts was simulated by intrusion method. The loaddeformation process and the semi-rigid of the bolted joints with different row numbers and different pore diameters were studied through the simulation. After that the typical bolted joints were verified by full-scale experiment,which could provide the basis for the advanced analysis of the transmission tower.
引文
[1]匡祯斌,孙炳楠,顾正维.螺栓端板连接节点的三维非线性有限元分析[J].钢结构,2004,19(2):47-50.
[2]徐凌,徐亮,高松.外伸端板螺栓连接节点的强度和刚度研究[J].地震工程与工程振动,2006,26(2):88-91.
[3]贾连光,邢贵洋,王升博,等.高强螺栓端板连接节点的非线性有限元分析[J].沈阳建筑大学学报(自然科学版),2005,21(6):630-634.
[4]徐建设,陈以一,韩琳,等.普通螺栓和承压型高强螺栓抗剪连接滑移过程[J].同济大学学报(自然科学版),2003,31(5):510-514.
[5]王燕,李华军,厉见芬.半刚性梁柱节点连接的初始刚度和结构内力分析[J].工程力学,2003,20(6):65-69.
[6]赵楠.特高压输电塔半刚性连接节点受力性能及结构非线性分析研究[D].重庆:重庆大学,2014.
[7]LI G H,QI C Z,LUO J.Nonlinear Finite Element Analysis of Steel Frame with Semi-Rigid Connections[J].Applied Mechanics&Materials,2012,226-228:1199-1202.
[8]FAROOQI M.Finite Element-Based Mathematical Moment-Rotation Model for End-Plate Connections.a Thesis for Degree of Master of Science[D].Arlington(TX):Department of Civil and Environment Engineering,University of Texas at Arlington,2003.
[9]ABOLMAALI A,MATTHYS J H,FAROOQI M,et al.Development of Moment-Rotation Model Equations for Flush End-Plate Connections for Flush End-Plate Connections[J].Journal of Constructional Steel Research,2005,61:1595-1612.
[10]舒兴平,何琼芳.半刚性连接钢框架二阶内力和位移的简化计算[J].钢结构,2007,22(6):17-20.
[11]施刚,石永久,王元清.钢结构梁柱半刚性端板连接弯矩-转角全曲线计算方法[J].工程力学,2006,23(5):67-73.
[12]石文龙,李国强,肖勇,等.半刚性连接梁柱组合节点低周反复荷载试验研究[J].建筑结构学报,2008,29(5):57-66.
[13]石永久,王萌,王元清,等.钢框架端板连接半刚性节点受力性能分析[J].工程力学,2011,28(9):51-58.
[14]安利强,朱登杰,武文玲,等.节点半刚性对特高压钢管塔静力特性的影响[J].应用力学学报,2015,32(6):1019-1024.
[15]黄伟东,陈海波,王朋,等.输电塔螺栓搭接滑移过程的数值模拟[J].固体力学学报,2014,35(增刊1):215-220.
[2]徐凌,徐亮,高松.外伸端板螺栓连接节点的强度和刚度研究[J].地震工程与工程振动,2006,26(2):88-91.
[3]贾连光,邢贵洋,王升博,等.高强螺栓端板连接节点的非线性有限元分析[J].沈阳建筑大学学报(自然科学版),2005,21(6):630-634.
[4]徐建设,陈以一,韩琳,等.普通螺栓和承压型高强螺栓抗剪连接滑移过程[J].同济大学学报(自然科学版),2003,31(5):510-514.
[5]王燕,李华军,厉见芬.半刚性梁柱节点连接的初始刚度和结构内力分析[J].工程力学,2003,20(6):65-69.
[6]赵楠.特高压输电塔半刚性连接节点受力性能及结构非线性分析研究[D].重庆:重庆大学,2014.
[7]LI G H,QI C Z,LUO J.Nonlinear Finite Element Analysis of Steel Frame with Semi-Rigid Connections[J].Applied Mechanics&Materials,2012,226-228:1199-1202.
[8]FAROOQI M.Finite Element-Based Mathematical Moment-Rotation Model for End-Plate Connections.a Thesis for Degree of Master of Science[D].Arlington(TX):Department of Civil and Environment Engineering,University of Texas at Arlington,2003.
[9]ABOLMAALI A,MATTHYS J H,FAROOQI M,et al.Development of Moment-Rotation Model Equations for Flush End-Plate Connections for Flush End-Plate Connections[J].Journal of Constructional Steel Research,2005,61:1595-1612.
[10]舒兴平,何琼芳.半刚性连接钢框架二阶内力和位移的简化计算[J].钢结构,2007,22(6):17-20.
[11]施刚,石永久,王元清.钢结构梁柱半刚性端板连接弯矩-转角全曲线计算方法[J].工程力学,2006,23(5):67-73.
[12]石文龙,李国强,肖勇,等.半刚性连接梁柱组合节点低周反复荷载试验研究[J].建筑结构学报,2008,29(5):57-66.
[13]石永久,王萌,王元清,等.钢框架端板连接半刚性节点受力性能分析[J].工程力学,2011,28(9):51-58.
[14]安利强,朱登杰,武文玲,等.节点半刚性对特高压钢管塔静力特性的影响[J].应用力学学报,2015,32(6):1019-1024.
[15]黄伟东,陈海波,王朋,等.输电塔螺栓搭接滑移过程的数值模拟[J].固体力学学报,2014,35(增刊1):215-220.