浅析贵州乌江沙沱水电站溪沟桥扒杆吊沟底垂直起吊T梁吊装方案要点

Some Key Points on the T-beam lifting Scheme for the Vertical Lifting at the Boom Crane Bottom of Xigou Bridge Wujiang Shatuo Hydropower Station in Guizhou

无论是采用架桥机还是扒杆吊架设桥梁,通常都是从引道一侧运梁,从桥台后端喂梁,再水平逐跨越过盖梁安装架设。溪沟桥在桥台不具备喂梁的条件下,克服了岸坡阻碍的不利条件,从墩柱、桥台之间利用一对扒杆吊垂直起吊,倾斜穿过桥台和盖梁,成功的完成了T梁架设。

Regardless of whether the bridge is erected by a bridge erecting machine or a pick-up pole, the beam is usuallytransported from the side of the approach road, fed from the rear end of the abutment, and installed horizontally across the coverbeam. The Xigou Bridge overcomes the unfavorable conditions of the bank slope under the condition that the abutment does nothave a beam feeding. It is successfully lifted vertically from the pier column and the abutment with a pair of picket rods, and isinclined to pass through the abutment and the cover beam. Completed the T-beam erection.