Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prefabricated segmental box girder mounting method
The invention relates to the technical field of bridge construction, in particular to a prefabricated segmental box girder mounting method, which comprises the following steps: by taking a middle pier of each bridge pier as an assembly starting point, symmetrically and outwards extending from two sides of the assembly starting point to form T-shaped structure assembly; when the box girders symmetrically extend outwards to be spliced, the adjacent box girders are bonded through bridge bonding glue, and then the overall line type of the box girders is adjusted to be close to the design line type by adjusting the temporary prestress and the construction sequence; taking two or more symmetrical segmental box girders as a combination, and carrying out primary internal prestress tension; after the whole prefabricated section box girder assembled by the T-shaped structure is assembled, one-time grouting construction is conducted in a centralized mode; by means of the installation method of the prefabricated segmental box girder, the construction time is shortened, the whole prefabricated segmental box girder only needs one-time mud jacking, the mud jacking frequency is reduced, and the construction efficiency is improved.
本发明涉及桥梁施工技术领域，具体涉及一种预制节段箱梁安装方法，通过以每一联桥墩的中墩为拼装起点，从该拼装起点的两侧对称向外延伸成“T”型结构拼装；对称向外延伸拼装时，相邻的节段箱梁之间采用桥梁粘结胶进行粘接，然后采用调整临时预应力的大小和施工顺序调整箱梁的整体线型接近设计线型；以对称两个或多个节段箱梁作为一个组合，进行一次体内预应力张拉；以“T”型结构拼装完成的整个预制节段箱梁拼装完成后，集中进行一次压浆施工；采用本发明的一种预制节段箱梁安装方法，缩短了施工时间，整体预制节段箱梁仅需要一次压浆，减少压浆次数，提高了施工效率。
Prefabricated segmental box girder mounting method
The invention relates to the technical field of bridge construction, in particular to a prefabricated segmental box girder mounting method, which comprises the following steps: by taking a middle pier of each bridge pier as an assembly starting point, symmetrically and outwards extending from two sides of the assembly starting point to form T-shaped structure assembly; when the box girders symmetrically extend outwards to be spliced, the adjacent box girders are bonded through bridge bonding glue, and then the overall line type of the box girders is adjusted to be close to the design line type by adjusting the temporary prestress and the construction sequence; taking two or more symmetrical segmental box girders as a combination, and carrying out primary internal prestress tension; after the whole prefabricated section box girder assembled by the T-shaped structure is assembled, one-time grouting construction is conducted in a centralized mode; by means of the installation method of the prefabricated segmental box girder, the construction time is shortened, the whole prefabricated segmental box girder only needs one-time mud jacking, the mud jacking frequency is reduced, and the construction efficiency is improved.
本发明涉及桥梁施工技术领域，具体涉及一种预制节段箱梁安装方法，通过以每一联桥墩的中墩为拼装起点，从该拼装起点的两侧对称向外延伸成“T”型结构拼装；对称向外延伸拼装时，相邻的节段箱梁之间采用桥梁粘结胶进行粘接，然后采用调整临时预应力的大小和施工顺序调整箱梁的整体线型接近设计线型；以对称两个或多个节段箱梁作为一个组合，进行一次体内预应力张拉；以“T”型结构拼装完成的整个预制节段箱梁拼装完成后，集中进行一次压浆施工；采用本发明的一种预制节段箱梁安装方法，缩短了施工时间，整体预制节段箱梁仅需要一次压浆，减少压浆次数，提高了施工效率。
Prefabricated segmental box girder mounting method
一种预制节段箱梁安装方法
DING YAHUI (Autor:in) / ZHANG MINGSHAN (Autor:in) / ZHU CHAO (Autor:in) / ZHANG LIANG (Autor:in) / LIU XIAOSHENG (Autor:in) / HUANG YANGLIN (Autor:in) / SHEN DAWEI (Autor:in) / GUO PENG (Autor:in)
12.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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