摘要
针对输电钢管塔采用传统锻造法兰和新型锻造法兰两种节点连接形式,在ANSYS软件中选取螺栓孔中心到法兰盘外缘和颈根的距离、螺栓个数为参数,建立输电钢管塔的法兰连接有限元模型,研究了两种锻造法兰节点在拉弯作用下的受力及破坏模式。结果表明,传统锻造法兰有螺栓弯曲屈服、法兰颈屈服两种破坏形式;新型锻造法兰有螺栓弯曲屈服、钢管拉伸屈服两种破坏形式。
This paper presents the study of finite element analysis of traditional forging flange joint and a new-type internal-external forging flange joint of steel transmission towers under condition of stretch bending. ANSYS is used to es tablish the finite element model of flange joint for transmission steel tube tower by taking bolt numbers, the distance be- tween bolt hole center and flange fringe, the distance between bolt hole center and flange neck as computation parameters. And then the failure pattern and stress of traditional forging flange joint and the new-type forging flange joint are studied under the action of stretch bending. The results show that the traditional forging flange joint has two failure patterns： bolt bending yield and flange neck yield while the new-type forging flange joint has two failure patterns： bolt bending yield and steel pipe tension yield.
出处
《水电能源科学》
北大核心
2013年第8期184-187,245,共5页
Water Resources and Power
关键词
输电钢管塔
新型锻造法兰
拉弯
破坏模式
transmission steel tube tower
internal external forging flange
stretch bending
failure pattern
