A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of bridge construction, and particularly relates to a steel box girder incremental launching construction method which comprises the steps that S1, a plurality of assembling buttresses and a plurality of incremental launching buttresses are erected; s2, a pilot beam, a plurality of steel box beams and a rear guide beam are sequentially assembled on the assembling buttresses to form a main beam, and pushing equipment is installed on each pushing buttress; s3, an elastic assembly is placed on each pushing device, and the elastic assemblies are located below the bottom plate bolts; s4, the total beam is jacked up by the jacking and pushing equipment and then pushed forwards by a preset distance; s5, the step S4 is repeated until the steel beam is pushed to the designated position; and S6, the pilot beam and the rear guide beam are dismantled, and pushing is completed. Compared with the prior art, the pushing device has the beneficial effects that the elastic assembly is placed on the pushing device, when the pushing device conducts pushing, the elastic assembly makes contact with the bottom plate bolt, after the elastic assembly deforms, the contact area between the elastic assembly and the bottom plate bolt is increased, and therefore local stress is reduced, and damage to the bottom bolt is avoided.
本专利申请属于桥梁施工技术领域，具体涉及一种钢箱梁顶推施工方法，S1：搭设多个拼装支墩和顶推支墩；S2：在拼装支墩上依次拼装先导梁、多个钢箱梁、后导梁，形成总梁，在每个顶推支墩上安装顶推设备；S3：在每个顶推设备上放置弹性组件，弹性组件位于底板螺栓下方；S4：顶推设备将总梁顶起，再向前推动预设距离；S5：重复步骤S4，直至将钢梁顶推至指定位置；S6：拆除先导梁和后导梁，完成顶推。相比现有技术，本发明的有益效果在于：通过在顶推设备上放置弹性组件，顶推设备进行顶推时，通过弹性组件与底板螺栓接触，弹性组件形变后，增大了与底板螺栓的接触面积，从而减少了局部应力，避免底部螺栓损伤。
The invention belongs to the technical field of bridge construction, and particularly relates to a steel box girder incremental launching construction method which comprises the steps that S1, a plurality of assembling buttresses and a plurality of incremental launching buttresses are erected; s2, a pilot beam, a plurality of steel box beams and a rear guide beam are sequentially assembled on the assembling buttresses to form a main beam, and pushing equipment is installed on each pushing buttress; s3, an elastic assembly is placed on each pushing device, and the elastic assemblies are located below the bottom plate bolts; s4, the total beam is jacked up by the jacking and pushing equipment and then pushed forwards by a preset distance; s5, the step S4 is repeated until the steel beam is pushed to the designated position; and S6, the pilot beam and the rear guide beam are dismantled, and pushing is completed. Compared with the prior art, the pushing device has the beneficial effects that the elastic assembly is placed on the pushing device, when the pushing device conducts pushing, the elastic assembly makes contact with the bottom plate bolt, after the elastic assembly deforms, the contact area between the elastic assembly and the bottom plate bolt is increased, and therefore local stress is reduced, and damage to the bottom bolt is avoided.
本专利申请属于桥梁施工技术领域，具体涉及一种钢箱梁顶推施工方法，S1：搭设多个拼装支墩和顶推支墩；S2：在拼装支墩上依次拼装先导梁、多个钢箱梁、后导梁，形成总梁，在每个顶推支墩上安装顶推设备；S3：在每个顶推设备上放置弹性组件，弹性组件位于底板螺栓下方；S4：顶推设备将总梁顶起，再向前推动预设距离；S5：重复步骤S4，直至将钢梁顶推至指定位置；S6：拆除先导梁和后导梁，完成顶推。相比现有技术，本发明的有益效果在于：通过在顶推设备上放置弹性组件，顶推设备进行顶推时，通过弹性组件与底板螺栓接触，弹性组件形变后，增大了与底板螺栓的接触面积，从而减少了局部应力，避免底部螺栓损伤。
Incremental launching construction method for steel box girder
一种钢箱梁顶推施工方法
ZHOU BO (author)
2024-11-22
Patent
Electronic Resource
Chinese
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