Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of segmental prefabricated composite material composition board composite beam structure
The invention discloses a construction method of a segmental prefabricated composite material composition board composite beam structure, which is characterized in that different components of a main beam segment are prefabricated at the same time in a factory, and the prefabricated main beam segment is easier to carry out standardized operation in the factory; the ultrahigh-toughness fiber-reinforced cement-based composite material layer on the orthotropic combined top plate is poured in advance in a factory, so that the pouring operation on a bridge construction site is greatly reduced, the self weight of a main beam section can be effectively reduced by utilizing a combined structure of the orthotropic top plate and a composite material, and meanwhile, the main beam section has good mechanical properties; the ultrahigh-toughness fiber-reinforced cement-based composite material layer serves as a structural layer to participate in stress of a main beam system and also serves as rigid pavement to greatly improve the anti-fatigue performance of the orthotropic roof, and pre-tightening force is applied to ultrahigh-performance concrete at transverse wet joints through tensioning of stay cables. And the crack resistance of the transverse wet joint can be improved, so that the pressure stress reserve among different main beam sections is improved.
本发明公开一种节段预制复合材料组合板组合梁结构的施工方法，在工厂内同时预制主梁节段的不同组件，且预制的主梁节段在工厂内更容易进行标准化作业，通过在工厂内预先浇筑正交异性组合顶板上的超高韧性纤维增强水泥基复合材料层，大幅减少了桥梁施工现场的浇筑作业，主梁节段利用正交异性顶板与复合材料的组合结构能有效降低结构自重，同时具备良好的力学性能，超高韧性纤维增强水泥基复合材料层既作为结构层参与主梁体系受力，又作为刚性铺装大幅改善正交异性顶板的抗疲劳性能，利用斜拉索张拉对横向湿接缝处的超高性能混凝土施加预紧力，可提高横向湿接缝的抗裂性能从而提高不同主梁节段间的压应力储备。
Construction method of segmental prefabricated composite material composition board composite beam structure
The invention discloses a construction method of a segmental prefabricated composite material composition board composite beam structure, which is characterized in that different components of a main beam segment are prefabricated at the same time in a factory, and the prefabricated main beam segment is easier to carry out standardized operation in the factory; the ultrahigh-toughness fiber-reinforced cement-based composite material layer on the orthotropic combined top plate is poured in advance in a factory, so that the pouring operation on a bridge construction site is greatly reduced, the self weight of a main beam section can be effectively reduced by utilizing a combined structure of the orthotropic top plate and a composite material, and meanwhile, the main beam section has good mechanical properties; the ultrahigh-toughness fiber-reinforced cement-based composite material layer serves as a structural layer to participate in stress of a main beam system and also serves as rigid pavement to greatly improve the anti-fatigue performance of the orthotropic roof, and pre-tightening force is applied to ultrahigh-performance concrete at transverse wet joints through tensioning of stay cables. And the crack resistance of the transverse wet joint can be improved, so that the pressure stress reserve among different main beam sections is improved.
本发明公开一种节段预制复合材料组合板组合梁结构的施工方法，在工厂内同时预制主梁节段的不同组件，且预制的主梁节段在工厂内更容易进行标准化作业，通过在工厂内预先浇筑正交异性组合顶板上的超高韧性纤维增强水泥基复合材料层，大幅减少了桥梁施工现场的浇筑作业，主梁节段利用正交异性顶板与复合材料的组合结构能有效降低结构自重，同时具备良好的力学性能，超高韧性纤维增强水泥基复合材料层既作为结构层参与主梁体系受力，又作为刚性铺装大幅改善正交异性顶板的抗疲劳性能，利用斜拉索张拉对横向湿接缝处的超高性能混凝土施加预紧力，可提高横向湿接缝的抗裂性能从而提高不同主梁节段间的压应力储备。
Construction method of segmental prefabricated composite material composition board composite beam structure
一种节段预制复合材料组合板组合梁结构的施工方法
ZHAN JIANHUI (Autor:in) / YANG YAN (Autor:in) / FANG ZHI (Autor:in) / LIAO YUAN (Autor:in) / DING WANGXING (Autor:in) / SHEN FENG (Autor:in) / TANG SHOUFENG (Autor:in) / TAN XINGYU (Autor:in) / ZHANG MING (Autor:in) / LIU CHAOHUI (Autor:in)
21.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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