For the high tensile bolt connection between girders and carriages of double girder overhead traveling crane with electric hoist , this paper analyzes the forces exerted on the bolts and gives their strength check procedures 摘要介绍了葫芦双梁主梁与端梁连接的高强度螺栓的校核过程，通过分析高强度螺栓的受力特点，建立校核模式，总结校核步骤及方法。
