摘要
塔机的发展已有近百年的历史，就结构形式而言，动臂变幅式塔机和带塔头的水平臂小车变幅式塔机在国内外塔机市场上一直占据主导地位。结构新颖的平头塔机近几年发展很快，没有塔头和拉杆是平头塔机最显著的结构特征，这也是平头塔机得名的由来。
Tower crane has being developed for nearly 100 years. As far as the structural configuration is concerned, luffing jib tower crane and 'A' top trolley-jib tower crane are dominant in the market. Flat-top tower crane has great originality of structural configuration, and it is developing fast these years. With no top and no tie bar is the distinct structural feature, that’s why the flat-top tower crane is famous.
出处
《建筑机械化》
2007年第10期15-22,4,共8页
Construction Mechanization
