Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Combined concrete 3D printing arch bridge main arch ring structure and construction method thereof
The invention relates to a combined concrete 3D printing arch bridge main arch ring structure and a construction method thereof. In concrete 3D printing, materials are stacked, accumulated and formed layer by layer, the interlayer strength is weak, and the bearing capacity is affected. The structure comprises a concrete 3D printing arch ring and a concrete post-pouring layer, the concrete 3D printing arch ring is a concrete 3D printing prefabricated part, and the concrete post-pouring layer is a concrete cast-in-place part; the concrete 3D printing arch ring is formed by splicing a plurality of 3D printing reinforced arch blocks in the longitudinal direction, and splicing seams are transversely arranged. The 3D printing arch blocks and the post-poured concrete are combined into the main arch ring structure, the steel bars are evenly distributed in the printing pieces and the cast-in-place pieces and are associated with one another, and the interlayer shearing force of the 3D printing reinforced arch blocks is transverse and is perpendicular to the shearing force from the two longitudinal ends of the main arch ring; the problem that the interlayer strength and the strip strength of a printing component are weak due to layer-by-layer superposition and accumulation forming in concrete 3D printing is effectively solved, and after printing forming, the bearing capacity is not affected.
本发明涉及一种组合式混凝土3D打印拱桥主拱圈结构及其建造方法。混凝土3D打印中，材料逐层叠加累积成型，层间强度较弱，承载能力受到影响。本结构包括混凝土3D打印拱圈和混凝土后浇层，前者为混凝土3D打印预制件，后者为混凝土现浇件；混凝土3D打印拱圈由多块3D打印配筋拱块沿纵向拼接组成，拼接缝横向布置。本发明通过3D打印拱块和后浇混凝土组合成主拱圈结构，在打印件和现浇件中均布设钢筋并互相关联，3D打印配筋拱块的层间剪力为横向，与来自主拱圈纵向两端的剪力作用垂直，有效克服混凝土3D打印逐层叠加累积成型导致的打印构件层间和条间强度较弱的问题，打印成型后，承载能力不受影响。
Combined concrete 3D printing arch bridge main arch ring structure and construction method thereof
The invention relates to a combined concrete 3D printing arch bridge main arch ring structure and a construction method thereof. In concrete 3D printing, materials are stacked, accumulated and formed layer by layer, the interlayer strength is weak, and the bearing capacity is affected. The structure comprises a concrete 3D printing arch ring and a concrete post-pouring layer, the concrete 3D printing arch ring is a concrete 3D printing prefabricated part, and the concrete post-pouring layer is a concrete cast-in-place part; the concrete 3D printing arch ring is formed by splicing a plurality of 3D printing reinforced arch blocks in the longitudinal direction, and splicing seams are transversely arranged. The 3D printing arch blocks and the post-poured concrete are combined into the main arch ring structure, the steel bars are evenly distributed in the printing pieces and the cast-in-place pieces and are associated with one another, and the interlayer shearing force of the 3D printing reinforced arch blocks is transverse and is perpendicular to the shearing force from the two longitudinal ends of the main arch ring; the problem that the interlayer strength and the strip strength of a printing component are weak due to layer-by-layer superposition and accumulation forming in concrete 3D printing is effectively solved, and after printing forming, the bearing capacity is not affected.
本发明涉及一种组合式混凝土3D打印拱桥主拱圈结构及其建造方法。混凝土3D打印中，材料逐层叠加累积成型，层间强度较弱，承载能力受到影响。本结构包括混凝土3D打印拱圈和混凝土后浇层，前者为混凝土3D打印预制件，后者为混凝土现浇件；混凝土3D打印拱圈由多块3D打印配筋拱块沿纵向拼接组成，拼接缝横向布置。本发明通过3D打印拱块和后浇混凝土组合成主拱圈结构，在打印件和现浇件中均布设钢筋并互相关联，3D打印配筋拱块的层间剪力为横向，与来自主拱圈纵向两端的剪力作用垂直，有效克服混凝土3D打印逐层叠加累积成型导致的打印构件层间和条间强度较弱的问题，打印成型后，承载能力不受影响。
Combined concrete 3D printing arch bridge main arch ring structure and construction method thereof
组合式混凝土3D打印拱桥主拱圈结构及其建造方法
YANG MIN (Autor:in) / BAI SONGLIN (Autor:in) / LI GANG (Autor:in) / LIU SHILONG (Autor:in) / LAI MENGGANG (Autor:in) / YAO XIAOFEI (Autor:in) / ZHOU JIANG (Autor:in) / LI CHAO (Autor:in)
31.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
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