Overhead crane with simple girder [机] 梁式起重机
Single girder overhead crane 单主梁桥式起重机 ; 单梁桥式起重机 ; 单梁起重机
overhead d crane girder 桥式吊车梁
Double girder overhead crane [机] 双梁桥式起重机
10T Singer girder overhead crane 吨天车
manual single-girder overhead crane 手动单梁桥式起重机
two-girder overhead travelling crane 双梁式架空移动起重机
Cracks occurred in the main weld joining the web and upper wing panel of an overhead crane girder of I-section, some of which have expanded to the structure material and even led to girder fracture.
桥式起重机采用工字形截面作为主梁，使用多年后该结构形式的主梁上翼缘板和腹板连接的主焊缝及母材多处产生裂纹，甚至发生主梁断裂事故。
Main girder and other components of overhead traveling crane are typical welded structures, the primary failure type of which is fatigue crack.
桥式起重机主梁等构件是典型的焊接结构，其主要失效形式是疲劳断裂。
In recent years some new profile steels are used for main girder of domestic made electric single girder overhead travelling crane.
近年来国内电动单梁起重机主梁采用一些新截面型式。
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