the text detailedly introduced crown block, running system, availability work period of bridge girder erection equipment and improve case for precast beams install.
详细介绍了对双导梁式架桥机天车、行走系统、有效工作长度及预制梁安装就位的改进情况。
according to the structural characteristics and use of bridge girder erection machine, this paper analyzes risk factors, corresponding measures to be taken for preventing accident.
the moving grid technique is adopted to simulate the fluid fields around the rigid body such as bridge girder cross-sections.
通过使用动网格技术,可实现对桥梁断面等刚体截面绕流场的模拟。
the gait-model bridge girder erection machine mainly applied to the erection of long-span, large-tonnage and double amplitude bridge deck concrete full-span box girders.
本架桥机主要应用于大跨度、大吨位、双幅桥梁架设中混凝土整孔箱梁的架设。
the paper introduced installation of plain girder by modified bridge girder erection equipment adopting double guide beam.
介绍了改进式双导梁架桥机进行板梁安装。
the nonlinearity effect on the deformation of the bridge girder will become prominent as the bridge span increases.
随着桥梁向长大跨度的发展,桥梁非线性变形的影响程度将加剧,风致抖振响应问题也将更加突出。
at present, there is not special technological criterion or specification in china for manufacturing and welding steel structure of railway bridge girder erecting machine.