Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of cable-stayed bridge tower column penetrating through steel box girder
The invention belongs to the technical field of bridge construction, and particularly relates to a construction method of a cable-stayed bridge tower column penetrating through a steel box girder, which comprises the following steps: S3, construction of 1-5 sections of the tower column: the 1-3 sections of the lower tower column are constructed, a large-surface arrangement frame body is used as a construction platform, a template is supported by adopting a mode of pre-burying a supporting steel bar, a small-surface arc section is poured by adopting a mode of replacing a curve by a straight line, and the section of the tower column is constructed; the facets are installed on the frame body according to the normal construction sequence, and the facets are constructed through the hydraulic creeping formwork device. According to the construction method for the cable-stayed bridge tower column penetrating through the steel box girder, after a large supporting block and a small supporting block are pushed out through a pushing air cylinder, telescopic rods stretch out and draw back in the corresponding supporting blocks, reset springs are stretched, a stable triangle is formed between the two telescopic rods and a construction platform, and therefore the large supporting block can be stressed and supported; and the telescopic rod with the inclined lower end, the tower column and the piston rod of the pushing air cylinder at the lower end also form a stable triangle, so that the small supporting block can be stressed and supported, and the stability and the safety in the formwork climbing process are further ensured.
本发明属于桥梁施工技术领域，尤其是一种穿越钢箱梁斜拉桥塔柱施工方法，塔柱施工方法包括S3、塔柱1～5节段施工：下塔柱1～3节段，大面布置架体作为施工平台，采用预埋支撑钢棒的方式支撑模板，小面圆弧段采用以直代曲的方式浇筑，小面按照正常施工顺序安装架体，采用液压爬模装置施工小面。该穿越钢箱梁斜拉桥塔柱施工方法，通过推动气缸将大撑块与小撑块推出后，伸缩杆在对应的支撑块内伸缩，并拉伸复位弹簧，使得两个伸缩杆与施工平台之间构成稳定的三角形，从而可对大撑块进行受力支撑，而下端倾斜的伸缩杆与塔柱、下端推动气缸的活塞杆之间也构成稳定的三角形，从而可对小撑块实现受力支撑，进而保证了爬模过程中的平稳安全。
Construction method of cable-stayed bridge tower column penetrating through steel box girder
The invention belongs to the technical field of bridge construction, and particularly relates to a construction method of a cable-stayed bridge tower column penetrating through a steel box girder, which comprises the following steps: S3, construction of 1-5 sections of the tower column: the 1-3 sections of the lower tower column are constructed, a large-surface arrangement frame body is used as a construction platform, a template is supported by adopting a mode of pre-burying a supporting steel bar, a small-surface arc section is poured by adopting a mode of replacing a curve by a straight line, and the section of the tower column is constructed; the facets are installed on the frame body according to the normal construction sequence, and the facets are constructed through the hydraulic creeping formwork device. According to the construction method for the cable-stayed bridge tower column penetrating through the steel box girder, after a large supporting block and a small supporting block are pushed out through a pushing air cylinder, telescopic rods stretch out and draw back in the corresponding supporting blocks, reset springs are stretched, a stable triangle is formed between the two telescopic rods and a construction platform, and therefore the large supporting block can be stressed and supported; and the telescopic rod with the inclined lower end, the tower column and the piston rod of the pushing air cylinder at the lower end also form a stable triangle, so that the small supporting block can be stressed and supported, and the stability and the safety in the formwork climbing process are further ensured.
本发明属于桥梁施工技术领域，尤其是一种穿越钢箱梁斜拉桥塔柱施工方法，塔柱施工方法包括S3、塔柱1～5节段施工：下塔柱1～3节段，大面布置架体作为施工平台，采用预埋支撑钢棒的方式支撑模板，小面圆弧段采用以直代曲的方式浇筑，小面按照正常施工顺序安装架体，采用液压爬模装置施工小面。该穿越钢箱梁斜拉桥塔柱施工方法，通过推动气缸将大撑块与小撑块推出后，伸缩杆在对应的支撑块内伸缩，并拉伸复位弹簧，使得两个伸缩杆与施工平台之间构成稳定的三角形，从而可对大撑块进行受力支撑，而下端倾斜的伸缩杆与塔柱、下端推动气缸的活塞杆之间也构成稳定的三角形，从而可对小撑块实现受力支撑，进而保证了爬模过程中的平稳安全。
Construction method of cable-stayed bridge tower column penetrating through steel box girder
一种穿越钢箱梁斜拉桥塔柱施工方法
CHEN PENGFEI (Autor:in) / XIE YAN (Autor:in) / JIANG HAITAO (Autor:in) / GONG JUNJIAN (Autor:in) / GU XIN (Autor:in)
25.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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