Raindrop-shaped stainless steel wire distribution pipe for stay cable steering device of cable-stayed bridge tower

Abstract

The invention discloses a raindrop-shaped stainless steel wire distribution pipe for a stay cable steering device of a cable-stayed bridge tower. The cross section of the raindrop-shaped stainless steel wire distribution pipe is gradually changed from the semi-round shape for the upper part to the raindrop shape for the lower part, the straight-line section of the lower part is tangent to the circular arc of the upper part, the straight-line section and a symmetric axis form an angle of 30 degrees, a fillet is formed at the lower end, and the inside radius of the fillet is 3.5 mm. As the straight-line section and the symmetric axis of the raindrop-shaped stainless steel wire distribution pipe form the angle of 30 degrees, the radial force of a cable strand acts on the pipe wall, the pipe wall generates certain opposite force and applies the certain opposite force to the cable strand, and the cable strand is clamped. Therefore, an inner pipe is not required to be filled with epoxy mortar for closing and anchoring, stranded steel wires are guaranteed to be parallel and not interfere with each other, full compatibility with mounting of a single strand of stay cable and a tension system is achieved, the requirement on tension space is also lowered at the same time, and conveniences are brought to cable replacement in future.

Description

technical field [0001] The invention relates to a raindrop-shaped stainless steel wire splitting pipe used for a cable-stayed cable diverter of a cable-stayed bridge. Background technique [0002] The saddle structures used in the cable towers of cable-stayed bridges at home and abroad are mostly composed of inner and outer tubes, and the inner tubes use circular split tubes. After the bridge is completed, epoxy mortar is poured into the inner tubes for sealing and anchoring. For saddles with this structure, since the steel strands and the inner pipe are glued together by epoxy mortar, on the one hand, the stay cables are squeezed against each other, and they cannot be adjusted and stretched individually, only the whole bundle can be stretched. ; And the anti-slip performance is not good; on the other hand, it will also bring certain difficulties for changing the cable in the future. Contents of the invention [0003] The object of the present invention is to provide a ki...

AI Technical Summary

Problems solved by technology

For saddles with this structure, since the steel strands and the inner pipe are glued together by epoxy mortar, on the one hand, the stay cables are squeezed against each other, and they cannot be adjusted and stretched individually, only the whole bundle can be stretched. ; and the anti-slip performance is not good; on the other hand, it also brings certain difficulties to the future cable replacement

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