输电铁塔主材螺栓连接节点半刚性研究  

RESEARCH ON SEMI-REGID OF BOLTED JOINT IN MAIN MEMBER OF TRANSMISSION TOWER

作　　者：胡飞飞[1] 高长征[1] 江文强[2] 刘圣西 安利强[2] 高静 杜好阳[1] 

机构地区：[1]吉林省电力科学研究院有限公司,长春130021 [2]华北电力大学机械工程系,河北保定071003 [3]国网辽宁省电力有限公司大连培训中心,辽宁大连116000

出　　处：《钢结构》2018年第1期83-87,共5页Steel Construction

基　　金：国家自然科学基金项目(51408221)

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 axiM 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 kV transmission tower were simulated. And the preload of bolts was simulated by intrusion method. The load- deformation 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.

关 键 词：输电铁塔 螺栓连接节点 半刚性 仿真分析 试验研究 

分 类 号：TU391[建筑科学—结构工程]