Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cast-in-place box girder pouring construction method suitable for ultra-wide taxiway bridge
The invention provides a pouring construction method suitable for an ultra-wide taxiway bridge cast-in-place box girder. Four spans in the longitudinal direction are divided into two sections, the 1/4 position of the third span is used as a boundary, two post-pouring belts are transversely arranged, pouring construction is conducted in the left section, the middle section and the right section, the first longitudinal section of girder body is constructed firstly, and then the second longitudinal section of girder body is constructed. According to the construction method, conventional construction steps are innovated, a segmented framing pouring mode is adopted, a post-cast strip construction process is introduced, the concrete pouring time of each time is shortened, the construction crack probability caused by structure instability due to beam body temperature change is reduced, meanwhile, cast-in-place beam body construction is changed into parallel operation from line production, and the construction efficiency is improved. And the overall construction efficiency of the beam body is improved.
本发明提供一种适用于超宽滑行道桥现浇箱梁浇筑施工方法，将纵向方向的四跨分为两段幅，以第三跨1/4处为分界线，横向设置两道后浇带，分左、中、右三幅浇筑施工，先施工纵向第一段梁体，再施工纵向第二段梁体。本施工方法对常规施工步骤进行了创新，采用分段分幅浇筑方式，引入了后浇带施工工艺，缩短了每次混凝土的浇筑时间，降低了梁体温度变化引起结构不稳定引起的施工裂缝概率，同时现浇梁体施工由流水作业改为平行作业，提高了梁体施工整体效率。
Cast-in-place box girder pouring construction method suitable for ultra-wide taxiway bridge
The invention provides a pouring construction method suitable for an ultra-wide taxiway bridge cast-in-place box girder. Four spans in the longitudinal direction are divided into two sections, the 1/4 position of the third span is used as a boundary, two post-pouring belts are transversely arranged, pouring construction is conducted in the left section, the middle section and the right section, the first longitudinal section of girder body is constructed firstly, and then the second longitudinal section of girder body is constructed. According to the construction method, conventional construction steps are innovated, a segmented framing pouring mode is adopted, a post-cast strip construction process is introduced, the concrete pouring time of each time is shortened, the construction crack probability caused by structure instability due to beam body temperature change is reduced, meanwhile, cast-in-place beam body construction is changed into parallel operation from line production, and the construction efficiency is improved. And the overall construction efficiency of the beam body is improved.
本发明提供一种适用于超宽滑行道桥现浇箱梁浇筑施工方法，将纵向方向的四跨分为两段幅，以第三跨1/4处为分界线，横向设置两道后浇带，分左、中、右三幅浇筑施工，先施工纵向第一段梁体，再施工纵向第二段梁体。本施工方法对常规施工步骤进行了创新，采用分段分幅浇筑方式，引入了后浇带施工工艺，缩短了每次混凝土的浇筑时间，降低了梁体温度变化引起结构不稳定引起的施工裂缝概率，同时现浇梁体施工由流水作业改为平行作业，提高了梁体施工整体效率。
Cast-in-place box girder pouring construction method suitable for ultra-wide taxiway bridge
一种适用于超宽滑行道桥现浇箱梁浇筑施工方法
WANG QIANKUN (Autor:in) / ZHANG JIANZHONG (Autor:in) / DONG ZHIJUN (Autor:in) / YANG JUN (Autor:in) / HUANG YONG (Autor:in) / YANG JIAJU (Autor:in) / TANG LEI (Autor:in) / ZHANG CHANGXUAN (Autor:in) / LI CHAO (Autor:in) / JIANG LANG (Autor:in)
15.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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