Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Incremental launching construction method for continuous steel truss girder bridge
The invention discloses an incremental launching construction method for a continuous steel truss girder bridge. The incremental launching construction method comprises the steps that two slide way beams are arranged in the longitudinal bridge direction, sliding blocks are erected at the tops of the two slide way beams, walking machines are arranged at the positions, close to the two ends, between the two slide way beams, and bearing beams are arranged at the tops of jacking tops of the walking machines; the sliding block is located below the node position of a section of steel truss girder to be pushed and makes contact with a lower chord of the steel truss girder; the jacking jack is controlled to jack upwards, so that the bearing beam is in contact with the lower chord member, and the bearing beam and the sliding block jointly bear the weight of the steel truss girder; the horizontal top of the walking machine is controlled to push forwards to drive the steel truss girder to move forwards, meanwhile, the steel truss girder drives the sliding block to move forwards, when the horizontal top is pushed forwards to the maximum stroke, the jacking top is controlled to fall, the sliding block bears the weight of the steel truss girder, the horizontal top is controlled to return to the initial position, and pushing of one stroke is completed; the invention aims to solve the problems that the jacking of a walking machine cannot meet the stress requirement of a steel truss node and eccentric bending moment is generated on a pier body due to the fact that a slideway beam exceeds the width of a cover beam.
本发明公开了一种连续钢桁梁桥顶推施工方法，沿纵桥向设置两道滑道梁，在两道滑道梁的顶部搭设滑块，在两道滑道梁之间靠近两端的位置布设步履机，在步履机的顶升顶的顶部设置垫梁；使滑块位于待顶推的一节钢桁梁的节点位置下方，并与钢桁梁的下弦杆接触；控制顶升顶向上顶升，使垫梁与下弦杆接触，实现垫梁与滑块共同承受钢桁梁的重量；控制步履机的水平顶向前顶推带动钢桁梁向前移动，同时钢桁梁带动滑块向前移动，当水平顶向前顶推至最大行程后，控制顶升顶落顶，使滑块承受钢桁梁的重量，控制水平顶回至初始位置，完成一个行程的顶推；本发明目的在于解决步履机顶升无法满足钢桁梁节点受力要求和滑道梁超出盖梁宽度对墩身产生偏心弯矩的难题。
Incremental launching construction method for continuous steel truss girder bridge
The invention discloses an incremental launching construction method for a continuous steel truss girder bridge. The incremental launching construction method comprises the steps that two slide way beams are arranged in the longitudinal bridge direction, sliding blocks are erected at the tops of the two slide way beams, walking machines are arranged at the positions, close to the two ends, between the two slide way beams, and bearing beams are arranged at the tops of jacking tops of the walking machines; the sliding block is located below the node position of a section of steel truss girder to be pushed and makes contact with a lower chord of the steel truss girder; the jacking jack is controlled to jack upwards, so that the bearing beam is in contact with the lower chord member, and the bearing beam and the sliding block jointly bear the weight of the steel truss girder; the horizontal top of the walking machine is controlled to push forwards to drive the steel truss girder to move forwards, meanwhile, the steel truss girder drives the sliding block to move forwards, when the horizontal top is pushed forwards to the maximum stroke, the jacking top is controlled to fall, the sliding block bears the weight of the steel truss girder, the horizontal top is controlled to return to the initial position, and pushing of one stroke is completed; the invention aims to solve the problems that the jacking of a walking machine cannot meet the stress requirement of a steel truss node and eccentric bending moment is generated on a pier body due to the fact that a slideway beam exceeds the width of a cover beam.
本发明公开了一种连续钢桁梁桥顶推施工方法，沿纵桥向设置两道滑道梁，在两道滑道梁的顶部搭设滑块，在两道滑道梁之间靠近两端的位置布设步履机，在步履机的顶升顶的顶部设置垫梁；使滑块位于待顶推的一节钢桁梁的节点位置下方，并与钢桁梁的下弦杆接触；控制顶升顶向上顶升，使垫梁与下弦杆接触，实现垫梁与滑块共同承受钢桁梁的重量；控制步履机的水平顶向前顶推带动钢桁梁向前移动，同时钢桁梁带动滑块向前移动，当水平顶向前顶推至最大行程后，控制顶升顶落顶，使滑块承受钢桁梁的重量，控制水平顶回至初始位置，完成一个行程的顶推；本发明目的在于解决步履机顶升无法满足钢桁梁节点受力要求和滑道梁超出盖梁宽度对墩身产生偏心弯矩的难题。
Incremental launching construction method for continuous steel truss girder bridge
一种连续钢桁梁桥顶推施工方法
LIU XIAOGUANG (Autor:in) / FAN YONGHUI (Autor:in) / ZHANG YIYI (Autor:in) / LI NING (Autor:in) / LIU JIWEI (Autor:in) / ZHU BAOMING (Autor:in) / HAN GUODING (Autor:in) / FAN GEPING (Autor:in) / WANG HAO (Autor:in) / SUN YANGCHAO (Autor:in)
06.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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