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A platform for research: civil engineering, architecture and urbanism
Ultra-large-area grouting construction method for steel-concrete combined section of cable-stayed bridge
The invention provides an ultra-large area grouting construction method for a steel-concrete combined section of a cable-stayed bridge. The ultra-large area grouting construction method comprises thesteps of chiseling a notch, arranging a partition wall, arranging cushion blocks, installing a first section of steel tower and grouting a bearing plate. Notch chiseling comprises the step of pouringa tower base to the top surface of a grouting layer in the tower base construction process; except for tower base concrete with the width of 30 cm reserved on the periphery of the top face of the tower base, overpoured concrete with the width of 5 cm is chiseled away in a roughening mode, area division is conducted by arranging a partition wall, cushion blocks are arranged to support the first section of the steel tower, and grouting is achieved by directly conducting grouting from the hole position of a pressure bearing plate. Due to the fact that concrete around the tower base is used as a fence, a formwork does not need to be erected, pollution to the inclined face of the tower base during grouting is avoided, and the grouting quality is improved. As the partition wall adopts a groutingmaterial and a rubber strip, the leakproofness is enhanced; by means of the construction method, high-quality and high-efficiency construction of ultra-large-area grouting of the steel-concrete combined section of the cable-stayed bridge is guaranteed.
本发明提供了一种斜拉桥钢混结合段超大面积灌浆施工方法，包括凿槽口、设置隔墙、设置垫块、安装首节段钢塔及承压板灌浆。其中凿槽口是通过在塔座施工过程中将塔座浇筑至灌浆层顶面，然后在塔座顶面除四周预留30cm宽的塔座混凝土外，用凿毛的方式将超浇的5cm混凝土凿除来实现的，通过设置隔墙进行区域分割，设置垫块以支撑首节段钢塔，灌浆是通过直接从承压板开孔位置灌浆来实现的。由于利用塔座四周混凝土用作围挡，不需要再支立模板，避免了灌浆时对塔座斜面的污染，提高了灌浆质量；由于隔墙采用灌浆材料和橡胶条，增强了密闭性；通过这种施工方法，为斜拉桥钢混结合段超大面积灌浆高质量、高效率的施工提供了保证。
Ultra-large-area grouting construction method for steel-concrete combined section of cable-stayed bridge
The invention provides an ultra-large area grouting construction method for a steel-concrete combined section of a cable-stayed bridge. The ultra-large area grouting construction method comprises thesteps of chiseling a notch, arranging a partition wall, arranging cushion blocks, installing a first section of steel tower and grouting a bearing plate. Notch chiseling comprises the step of pouringa tower base to the top surface of a grouting layer in the tower base construction process; except for tower base concrete with the width of 30 cm reserved on the periphery of the top face of the tower base, overpoured concrete with the width of 5 cm is chiseled away in a roughening mode, area division is conducted by arranging a partition wall, cushion blocks are arranged to support the first section of the steel tower, and grouting is achieved by directly conducting grouting from the hole position of a pressure bearing plate. Due to the fact that concrete around the tower base is used as a fence, a formwork does not need to be erected, pollution to the inclined face of the tower base during grouting is avoided, and the grouting quality is improved. As the partition wall adopts a groutingmaterial and a rubber strip, the leakproofness is enhanced; by means of the construction method, high-quality and high-efficiency construction of ultra-large-area grouting of the steel-concrete combined section of the cable-stayed bridge is guaranteed.
本发明提供了一种斜拉桥钢混结合段超大面积灌浆施工方法，包括凿槽口、设置隔墙、设置垫块、安装首节段钢塔及承压板灌浆。其中凿槽口是通过在塔座施工过程中将塔座浇筑至灌浆层顶面，然后在塔座顶面除四周预留30cm宽的塔座混凝土外，用凿毛的方式将超浇的5cm混凝土凿除来实现的，通过设置隔墙进行区域分割，设置垫块以支撑首节段钢塔，灌浆是通过直接从承压板开孔位置灌浆来实现的。由于利用塔座四周混凝土用作围挡，不需要再支立模板，避免了灌浆时对塔座斜面的污染，提高了灌浆质量；由于隔墙采用灌浆材料和橡胶条，增强了密闭性；通过这种施工方法，为斜拉桥钢混结合段超大面积灌浆高质量、高效率的施工提供了保证。
Ultra-large-area grouting construction method for steel-concrete combined section of cable-stayed bridge
一种斜拉桥钢混结合段超大面积灌浆施工方法
ZHANG QIYU (author) / ZHOU CHANG (author) / TIAN XIN (author) / LIU YANJUN (author) / YANG SICHENG (author) / WU HONGWEI (author) / ZHANG KAI (author) / ZHANG ZHE (author)
2020-09-11
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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