Buckling anchor beam with self-adjustable angle

Abstract

The invention provides a buckling anchor beam with a self-adjustable angle. The buckling anchor beam is characterized in that the buckling anchor beam comprises an inhaul cable anchoring system composed of an anchor buckling beam (1), a main shaft seat (2), a main shaft (3) and steel cables (4); the inhaul cable anchoring system is arranged on the anchor buckling beam and provided with a concave main shaft seat; the main shaft is embedded in the main shaft seat; a plurality of rows of parallel and dense through holes (5) are formed in the main shaft; and the steel cables penetrate out of the through holes. The main shaft can freely slide in the main shaft seat at a certain angle; the angle can be automatically adjusted within a certain range according to different stresses in a use process, it is guaranteed that the steel cables are not bent, and traction force loss is minimum; designed bearing capacity has various specifications; use requirements under various conditions are met; construction cost is saved; and repeated use can be achieved.

Description

Technical field: [0001] The invention relates to the technical field of buckle-hung steel pipe arch bridges, in particular to a design of buckle-hung anchor beams with self-adjusting angles. Background technique: [0002] In recent years, long-span bridges have been developed unprecedentedly, showing a variety of construction methods. The stage construction method of buckle and anchor cable system combined with cable hoisting system is a relatively common construction method for long-span arch bridges. Mainly use the cable hoisting system to hoist the arch ring in stages, and use the buckle and anchor cable system to fix and adjust the elevation of the erected arch ring segments segment by segment until they are closed. In the construction of bridges such as buckle-hung steel pipe arches, buckle-hung points are generally set up at different positions according to the main arch nodes and the height of the buckle towers. The buckle-hung beams are designed at the connection pa...

AI Technical Summary

Problems solved by technology

In the construction of bridges such as buckle-hung steel pipe arches, buckle-hung points are generally set up at different positions according to the main arch nodes and the height of the buckle towers. The buckle-hung beams are designed at the connection parts of the front buckle-hung and the rear buckle-hung. At present, the buckle-anchor beam devices are usually The design and processing are carried out according to the actual vertical and horizontal angles of each anchor cable and the position of the anchor point. Each anchor beam device is different, and the angle will change with the position of the anchor point, so they all need to be independently designed and processed. Difficult design, various types of processing and complicated processing forms make the beams not universal and reusable, and the materials are seriously wasted, so that the construction cost increases. Here, a buckle-hanging anchor beam with good versatility is designed.

[0003] Therefore, the existing buckle and anchor beam device has the problems of difficult processing, single structure, complicated installation and waste of materials

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