Tower top anchoring device for connecting double main cables of suspension cable pipeline bridge

Abstract

The invention relates to a tower top anchoring device for connecting double main cables of a suspension cable pipeline bridge, which comprises two anchoring units arranged in bilateral symmetry, wherein each anchoring unit comprises a bottom plate foundation arranged at the bottom of the anchoring unit; a cover plate is arranged at the top of the anchoring unit; anchoring ends are symmetrically arranged at the front end and the rear end of the bottom plate foundation in the longitudinal direction; construction plates are vertically arranged on the two sides and the middle portion of each anchoring end; baffles are arranged along the front end and the tail end of each construction plate; the baffles are fixedly connected with the bottom plate foundation and the construction plates and are perpendicular to the construction plates; two open holes are formed in the corresponding position of each baffle in a bilateral symmetry mode; a main cable penetrates through the open holes and is anchored between the baffles; and the baffles at each anchoring end are connected and reinforced through a plurality of connecting plates. Compared with the mature mode that a single main cable on one side is anchored through a cable saddle, the device can effectively solve the current industrial situation that double main cables on one side are not provided with anchoring devices.

Description

technical field [0001] The invention relates to a tower top anchoring device used for connecting double main cables of a suspension pipeline bridge, and belongs to the technical field of oil (gas) pipeline design. Background technique [0002] In the field of suspension span design of existing long-distance oil and gas pipelines, one side is usually designed as a main cable. Larger, if one main cable is used on one side, the design diameter of the main cable is extremely large, and sometimes there is no finished cable to choose from (in this case, the main cable is designed by prefabricating parallel strands on site), which is not conducive to on-site transportation and installation . Therefore, with the long-distance pipeline spanning the construction period and the continuous improvement of quality requirements, a single-side double main cable form has emerged. A single main cable is divided into two main cables with smaller cross-sections, which can greatly improve trans...

AI Technical Summary

Problems solved by technology

[0003] Compared with the mature method of single-side single main cable anchoring with traditional cable saddle, due to the novelty of single-side double main cable, there is currently no stable and reliable tower top anchoring device for large-scale application. The anchorage of the top has become the difficulty and key to restrict the promotion of this form. The anchorage quality of the main cable at the top of the tower also directly affects the stability and safety of the main tower, bridge deck and other whole bridges, thus affecting various stages such as on-site construction and later operation and maintenance.

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