Anchoring structure and manufacturing method of stay cable and bridge tower

Abstract

The invention discloses an anchoring structure and a manufacturing method of a cable-stayed cable and a bridge tower. The anchoring structure includes anchoring structures arranged symmetrically on both sides of the bridge tower and several connecting plates connecting the two anchoring structures. Each anchoring structure adopts the same The inclined section with the same direction as the stay cable and the straight section with the same direction as the connecting plate are divided into several anchoring segments, and each anchoring segment includes two oppositely arranged anchoring side plates and a A number of shear plates arranged at intervals in the cable direction, the direction of the shear plates is parallel to the axial direction of the stay cables, and the stay cables are located between each shear plate and anchored to the anchor pad at the end of each shear plate board. Adopting a special segmentation method and optimizing the anchorage structure, greatly reducing the space requirements for welding seam welding operations, reducing the vertical spacing of stay cable anchorage, reducing the length of stay cable and bridge tower anchorage areas, and reducing the stay cable anchorage area The amount of steel is reduced, and the utilization rate of the stay cables can be improved, and the amount of materials for the stay cables can be reduced.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to an anchoring structure of a stay cable and a bridge tower and a manufacturing method. Background technique [0002] Cable-stayed bridge is a kind of cable-bearing bridge, which is mainly composed of three parts: the main girder and the bridge tower, which are mainly subjected to axial force, and the cable-stayed cable that is subjected to tension. Under the support of stay cables, the main beam can be regarded as a multi-span continuous beam, and the bending moment it bears can be significantly reduced, the section height of the main beam can be correspondingly reduced, the self-weight of the structure can be reduced, and the spanning capacity can be greatly improved. Cable-stayed bridges have reasonable stress, good economy, strong applicability, beautiful appearance, mature construction technology and good wind resistance. Therefore, cable-stayed bridges play an increasingly im...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an anchoring structure and manufacturing method for cable-stayed cables and bridge towers, which can overcome the problems of the traditional side wall anchorage structure. Anchorage form and cross anchorage form The pre-embedded construction of cable-stayed conduits is complex, and it is easy to conflict with the main reinforcement of the concrete tower and the circumferential prestressed steel bars. The steel anchor beam construction requires a large hoisting space and the concrete corbel is under the force of the cable-stayed cables. The shortcomings of easy cracking under the action and large amount of steel used for anchoring in the steel anchor box, while inheriting the advantages of the traditional steel anchor box, give full play to the material properties of steel tensile strength and concrete compression resistance. The process provides a larger installation and construction operation space for the stay cables, and adopts a special segmented method and an anchorage side plate with holes on one side to optimize the anchor structure, reduce the vertical distance between the stay cable anchors, reduce the tower height, and save energy. steel quantity

Images