便桥方案Microsoft W
钢便桥施工方案一、便桥概况本施工队施工钢便桥,采用“321”贝雷桁架结构,八排单层贝雷桁架,钢管桩基础,上铺型钢。采用I28b工字钢作为便桥下钢管桩连接下横梁,其上搁置“321”军用贝雷梁,贝雷梁上搁
便桥方案Microsoft W