A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Overlapped 3D printed and post-poured concrete arch bridge main arch ring and construction method thereof
The invention discloses an arch bridge main arch ring overlapped with 3D printing and post-pouring concrete and a construction method thereof. The arch ring comprises a 3D printing concrete prefabricated layer, a longitudinal steel bar mesh, transverse steel bars and a concrete post-pouring layer. The construction method comprises the steps that a, the arch ring is divided into a prefabricated layer and a post-pouring layer in the vertical direction, and the prefabricated layer of the arch ring is divided into a plurality of arch ribs in the transverse bridge direction; b, the longitudinal section of the arch rib serves as a printing plane, the arch rib is printed layer by layer through the 3D concrete printing technology, and a longitudinal reinforcing mesh is horizontally placed every a certain number of printing layers; c, hoisting the arch ribs one by one; d, the transverse reinforcing steel bars and the longitudinal reinforcing steel bar meshes are bound together; and e, concrete is poured on the prefabricated layer to the designed thickness of the arch ring. According to the construction method of the laminated arch ring, formwork erecting and support erecting are not needed, and the material cost, the labor cost and the high-altitude operation risk are reduced; the prefabricated layer can be printed in a factory or near the bridge side, the construction speed is high, the influence on the surrounding environment and under-bridge navigation and traffic is small, and the influence by weather is small.
一种叠合3D打印及后浇混凝土的拱桥主拱圈及其建造方法。所述拱圈包括3D打印混凝土预制层、纵向钢筋网片、横向钢筋以及混凝土后浇层。建造方法为：a.沿竖直方向将拱圈分为预制层和后浇层，沿横桥向将拱圈预制层分为若干片拱肋；b.以拱肋纵断面为打印平面，采用3D打印混凝土技术逐层打印所述拱肋，每隔一定打印层数水平放置一片纵向钢筋网；c.逐片吊装拱肋；d.将横向钢筋与纵向钢筋网片绑扎在一起；e.在预制层上浇筑混凝土至拱圈设计厚度。该叠合拱圈建造方法无需支模和搭建支架，减少了材料和人力成本以及高空作业风险；预制层可在工厂或桥侧附近打印完成，施工速度快，对周边环境及桥下通航、通行影响小，受天气影响也小。
Overlapped 3D printed and post-poured concrete arch bridge main arch ring and construction method thereof
The invention discloses an arch bridge main arch ring overlapped with 3D printing and post-pouring concrete and a construction method thereof. The arch ring comprises a 3D printing concrete prefabricated layer, a longitudinal steel bar mesh, transverse steel bars and a concrete post-pouring layer. The construction method comprises the steps that a, the arch ring is divided into a prefabricated layer and a post-pouring layer in the vertical direction, and the prefabricated layer of the arch ring is divided into a plurality of arch ribs in the transverse bridge direction; b, the longitudinal section of the arch rib serves as a printing plane, the arch rib is printed layer by layer through the 3D concrete printing technology, and a longitudinal reinforcing mesh is horizontally placed every a certain number of printing layers; c, hoisting the arch ribs one by one; d, the transverse reinforcing steel bars and the longitudinal reinforcing steel bar meshes are bound together; and e, concrete is poured on the prefabricated layer to the designed thickness of the arch ring. According to the construction method of the laminated arch ring, formwork erecting and support erecting are not needed, and the material cost, the labor cost and the high-altitude operation risk are reduced; the prefabricated layer can be printed in a factory or near the bridge side, the construction speed is high, the influence on the surrounding environment and under-bridge navigation and traffic is small, and the influence by weather is small.
一种叠合3D打印及后浇混凝土的拱桥主拱圈及其建造方法。所述拱圈包括3D打印混凝土预制层、纵向钢筋网片、横向钢筋以及混凝土后浇层。建造方法为：a.沿竖直方向将拱圈分为预制层和后浇层，沿横桥向将拱圈预制层分为若干片拱肋；b.以拱肋纵断面为打印平面，采用3D打印混凝土技术逐层打印所述拱肋，每隔一定打印层数水平放置一片纵向钢筋网；c.逐片吊装拱肋；d.将横向钢筋与纵向钢筋网片绑扎在一起；e.在预制层上浇筑混凝土至拱圈设计厚度。该叠合拱圈建造方法无需支模和搭建支架，减少了材料和人力成本以及高空作业风险；预制层可在工厂或桥侧附近打印完成，施工速度快，对周边环境及桥下通航、通行影响小，受天气影响也小。
Overlapped 3D printed and post-poured concrete arch bridge main arch ring and construction method thereof
一种叠合3D打印及后浇混凝土的拱桥主拱圈及其建造方法
ZHANG HAIYAN (author) / CHEN FEIHAO (author) / CHENG SHANGFENG (author)
2023-01-20
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
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
/
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
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