850t双导梁架桥机的设计探讨

The design inquirements of the 850 t double leading beam bridge machine

通过分析国内外各种架桥机在应用上的局限性，阐述了850t双导梁架桥机的设计及其主梁、前后支腿的改进，并介绍了架桥机各组成部分的设计计算，为我国大吨位架桥机的研制提供了可借鉴的设计资料。

Through the analysis of the limitations of various bridge machines of home and abroad in the application, this thesis was expounded the designs of the 850 t double leading beam bridge machine and the improvement of his girder and the front legs and the back legs in accor- dance with the big tonnage box beam, and introduced the design calculation of each component of the bridge machine, and this can be used for reference for the development of the big tonnage bridge machine of our country.