A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a reinforcing structure of a reinforced concrete arch bridge main arch ring. The reinforcing structure comprises a prefabricated concrete surface formwork (2) extending in the axial direction of the concrete arch bridge main arch ring (1), the surface formwork (2) is composed of multiple formwork working sections (16) which are a formwork system formed by combining a circle of formworks connected mutually, a first steel anchor box (7) and a second steel anchor box (8) symmetrical to the first steel anchor box (7) are fixed to the middles of the top faces and the middles of the bottom faces of the formwork working sections (16) respectively, and the formwork working sections (16) are provided with a circumferential prestressing steel strand. Due to the fact that the formwork-disassembling-free circumferential prestressing reinforcing technology is adopted, the cross section of the main arch ring is subjected to circumferentially-distributed squeezing force and tangential dragging force, the overall working hours are reduced, the overall labor intensity is lowered, the economic benefit is improved, and meanwhile the radial compression resistance and bearing capability of the main arch ring is effectively improved.
The invention discloses a reinforcing structure of a reinforced concrete arch bridge main arch ring. The reinforcing structure comprises a prefabricated concrete surface formwork (2) extending in the axial direction of the concrete arch bridge main arch ring (1), the surface formwork (2) is composed of multiple formwork working sections (16) which are a formwork system formed by combining a circle of formworks connected mutually, a first steel anchor box (7) and a second steel anchor box (8) symmetrical to the first steel anchor box (7) are fixed to the middles of the top faces and the middles of the bottom faces of the formwork working sections (16) respectively, and the formwork working sections (16) are provided with a circumferential prestressing steel strand. Due to the fact that the formwork-disassembling-free circumferential prestressing reinforcing technology is adopted, the cross section of the main arch ring is subjected to circumferentially-distributed squeezing force and tangential dragging force, the overall working hours are reduced, the overall labor intensity is lowered, the economic benefit is improved, and meanwhile the radial compression resistance and bearing capability of the main arch ring is effectively improved.
| European Patent Office | 2020
| European Patent Office | 2023
Combined concrete 3D printing arch bridge main arch ring structure and construction method thereof
| European Patent Office | 2023