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A platform for research: civil engineering, architecture and urbanism
Plane small-curve-radius large-gradient concrete segmental beam assembling method
The invention discloses a plane small-curve-radius large-gradient concrete segmental beam assembling method. The method comprises the following steps that S100, hole passing of a bridge girder erection machine is conducted according to the hole passing step of each last-span beam; s200, the segmental beams are lifted through a bridge girder erection machine; step S300, tensioning temporary prestress of the glued section beams; step S400, carrying out wet joint construction; step S500, carrying out graded tensioning on the prestressing tendons; step S600, beam falling is carried out, and the bridge girder erection machine passes through the hole forwards; step S700, grouting is carried out; and S800, end sealing concrete is poured, and whole-span erection is completed. The bridge girder erection machine can pass through a small-curve-radius bridge without erecting an auxiliary support, the situation that the minimum plane curve radius is 136m, the maximum longitudinal slope is 5.53%, the maximum cross slope is 6% and the maximum span is 53m simultaneously can be erected, and the construction efficiency is high.
一种平面小曲线半径大坡度混凝土节段梁拼装方法，按以下步骤进行：步骤S100、按照每联末跨梁过孔步骤进行架桥机过孔；步骤S200、通过架桥机对节段梁进行提梁；步骤S300、胶拼节段梁张拉临时预应力；步骤S400、进行湿接缝施工；步骤S500、进行预应力束分级张拉；步骤S600、进行落梁，使架桥机再向前过孔；步骤S700、进行压浆；步骤S800、浇筑封端混凝土，完成整跨架设。本发明能让架桥机在无需搭设辅助支架的情况下通过小曲线半径桥梁，且可架设最小平面曲线半径为136m、最大纵坡5.53％、最大横坡6％、最大跨度53m同时出现的情况，施工效率高。
Plane small-curve-radius large-gradient concrete segmental beam assembling method
The invention discloses a plane small-curve-radius large-gradient concrete segmental beam assembling method. The method comprises the following steps that S100, hole passing of a bridge girder erection machine is conducted according to the hole passing step of each last-span beam; s200, the segmental beams are lifted through a bridge girder erection machine; step S300, tensioning temporary prestress of the glued section beams; step S400, carrying out wet joint construction; step S500, carrying out graded tensioning on the prestressing tendons; step S600, beam falling is carried out, and the bridge girder erection machine passes through the hole forwards; step S700, grouting is carried out; and S800, end sealing concrete is poured, and whole-span erection is completed. The bridge girder erection machine can pass through a small-curve-radius bridge without erecting an auxiliary support, the situation that the minimum plane curve radius is 136m, the maximum longitudinal slope is 5.53%, the maximum cross slope is 6% and the maximum span is 53m simultaneously can be erected, and the construction efficiency is high.
一种平面小曲线半径大坡度混凝土节段梁拼装方法，按以下步骤进行：步骤S100、按照每联末跨梁过孔步骤进行架桥机过孔；步骤S200、通过架桥机对节段梁进行提梁；步骤S300、胶拼节段梁张拉临时预应力；步骤S400、进行湿接缝施工；步骤S500、进行预应力束分级张拉；步骤S600、进行落梁，使架桥机再向前过孔；步骤S700、进行压浆；步骤S800、浇筑封端混凝土，完成整跨架设。本发明能让架桥机在无需搭设辅助支架的情况下通过小曲线半径桥梁，且可架设最小平面曲线半径为136m、最大纵坡5.53％、最大横坡6％、最大跨度53m同时出现的情况，施工效率高。
Plane small-curve-radius large-gradient concrete segmental beam assembling method
一种平面小曲线半径大坡度混凝土节段梁拼装方法
QI XIANGYU (author) / XU YUNXIANG (author) / YANG XIN (author) / WANG ZHENKUN (author) / ZHANG AIMIN (author) / MIAO ZIBO (author) / LIU GUOYU (author)
2024-03-29
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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