CN-116556188-B - Cable-stayed bridge main tower with cable mounting frame and cable-stayed bridge main tower using cable mounting frame

CN116556188BCN 116556188 BCN116556188 BCN 116556188BCN-116556188-B

Abstract

The invention provides a cable installation frame and a cable-stayed bridge main tower using the same, wherein the cable installation frame comprises a bracket, a first clamping groove is formed in the edge of the top surface of the bracket, a plurality of sliding seat assemblies are arranged in the first clamping groove, the sliding seat assemblies can slide along the first clamping groove and can be locked through bolts, hanging lugs are fixedly arranged on the sliding seat assemblies, the bottom of a groove wall, close to the center of the bracket, of the first clamping groove is inwards sunken to form a clamping groove, a clamping block is arranged on the sliding seat assemblies, corresponding to the clamping groove, one end of the clamping block stretches into the clamping groove, the top surface of the clamping block abuts against the top wall of the clamping groove, the position of a supporting connecting part can be conveniently adjusted, the cable installation and fixation can be conveniently adapted, so that the construction difficulty is reduced, the working efficiency is improved, the cable-stayed bridge main tower is used in a combined mode through the three cable installation frames, more connecting parts can be provided, the pulling of a bridge can be enhanced through increasing the number of the cables, different installation angle requirements can be better met, and the external installation environment is better adapted.

Inventors

Lang Jiasheng
LI JINGHUA
YU HONGSONG

Assignees

广东华坤建设集团有限公司

Dates

Publication Date: 20260512
Application Date: 20221228

Claims (6)

1. The utility model provides a cable mounting bracket which characterized in that: the bracket comprises a bracket in an annular shape, wherein a first clamping groove is formed in the edge of the top surface of the bracket, the first clamping groove is in a closed-loop structure around the center of the bracket, a plurality of sliding seat assemblies are arranged in the first clamping groove, the sliding seat assemblies can slide along the first clamping groove and can be locked through bolts, and hanging lugs are fixedly arranged on the sliding seat assemblies and are higher than the notch of the first clamping groove; The bottom of the groove wall, which is close to the center of the bracket, of the first clamping groove is recessed inwards to form a clamping groove, a clamping block is arranged on the sliding seat component corresponding to the clamping groove, one end of the clamping block extends into the clamping groove, and the top surface of the clamping block abuts against the top wall of the clamping groove; The bracket comprises a ring-shaped bottom plate, wherein a first convex ring and a second convex ring are fixedly arranged at the edge of the bottom plate, the outer diameter of the first convex ring is consistent with the outer diameter of the bottom plate, and the outer diameter of the second convex ring is smaller than the inner diameter of the first convex ring; the first convex ring and the third convex ring form a first clamping groove, and the second convex ring and the epitaxial ring form a clamping groove; The sliding seat assembly comprises a sliding block and a clamping block, the shape of the sliding block is matched with that of the first clamping groove, and the hanging lugs are fixedly arranged at the top of the sliding block; The shape of the clamping block is matched with that of the second clamping groove, the clamping block penetrates through the second clamping groove, and two ends of the clamping block can respectively prop against the inner wall of the first convex ring and the outer wall of the second convex ring to slide, and the clamping block is fixedly connected with the sliding block through bolts; the annular wall of the first convex ring is provided with a socket, the bottom of the socket is level with the top surface of the bottom plate, and the clamping block extends into the first clamping groove through the socket; The top of the outer wall of the third convex ring is fixedly provided with a thickened convex ring, the position of the top surface of the sliding block corresponding to the thickened convex ring is provided with a step tangent plane, and the bottom surface of the thickened convex ring abuts against the step tangent plane to form a secondary clamping position; the part of the thickened convex ring corresponding to the socket is provided with a notch, the notch penetrates through the upper wall surface and the lower wall surface of the thickened convex ring, the width of the notch is larger than that of the sliding block, and the sliding block is inserted into the first clamping groove through the notch; A fifth clamping groove is formed in the outer side of the top of the sliding block, the groove width of the fifth clamping groove is matched with the thickness of the first convex ring, and the fifth clamping groove is clamped at the top of the first convex ring and can slide along the top of the first convex ring; The outer wall of the top of the first convex ring is provided with a plurality of first threaded holes which are distributed around the axis circumference array of the first convex ring, the outer wall of the sliding block is correspondingly provided with first through holes, and the sliding block is fixed through bolts penetrating the first through holes and the first threaded holes.
2. A cable mount according to claim 1, wherein: the wall surface of the third convex ring corresponding to the jack is embedded with a first magnet block, the wall surface of the sliding block is correspondingly embedded with a second magnet block, and the position of the jack is aligned with the position of the second clamping groove when the second magnet block is in magnetic attraction connection with the first magnet block.
3. A cable mount according to claim 2, wherein: The bottom of the first clamping groove is provided with a plurality of second perforations, the second perforations are distributed around the central circumference array of the bottom plate, and the positions of the second perforations correspond to the positions of the first threaded holes; The bottom surface of screens strip corresponds to offered the second screw hole, and the screens strip is fixed through the bolt that penetrates second perforation and second screw hole.
4. A cable mount according to claim 3, wherein: The bottom plate is provided with a plurality of alignment holes, the alignment holes are positioned on one side of the second convex ring, which is close to the center of the bottom plate, and the alignment holes are distributed around the central circumference array of the bottom plate; The inner ring of the bottom plate is fixedly provided with an inner supporting frame, the inner supporting frame comprises a supporting ring and a plurality of frame strips, one end of each frame strip is fixed on the supporting ring, the other end of each frame strip is fixed on the bottom plate, and the plurality of frame strips are distributed around the central circumference of the supporting ring in an array manner.
5. The utility model provides a cable-stay bridge main tower which characterized in that: use of the cable mount of claim 4.
6. The main tower of a cable-stayed bridge according to claim 5, characterized in that: Comprises a concrete foundation and three inhaul cable mounting frames; The axes of the three inhaul cable installation frames are overlapped, and the supporting rings in the middle of the bracket are sleeved on the supporting shaft; The first inhaul cable installation frame is connected with the second inhaul cable installation frame through a plurality of first support rods, and the plurality of first support rods are distributed in a circumferential array around the axis of the support shaft; the two ends of the first support rod are fixedly provided with threaded columns, the diameter of each threaded column is matched with the diameter of the corresponding hole, the diameter of the first support rod is larger than that of the corresponding hole, the threaded columns penetrate through the corresponding hole to enable the end parts of the first support rod to be abutted against the bottom plate, and the threaded columns at the two ends are locked through nuts; the second stay rope mounting frame is connected with the third stay rope mounting frame through a plurality of second support rods, the plurality of second support rods are distributed in an array mode around the axis circumference of the support shaft, the second support rods are arranged at staggered intervals with the first support rods, and the first support rods and the second support rods are identical in structure; the back shaft and a plurality of cable mounting bracket are all embedded to be fixed in concrete basis, and the outer wall of concrete basis and the inner wall parallel and level of third bulge loop.

Description

Cable-stayed bridge main tower with cable mounting frame and cable-stayed bridge main tower using cable mounting frame Technical Field The invention relates to the field of main towers of cable-stayed bridges, in particular to a cable-stayed bridge main tower using a cable mounting frame. Background The length of the existing highway and railway bridge construction projects is generally more than several kilometers and even tens kilometers, especially the river-crossing and sea-crossing bridge, the long line cannot be on a straight line section due to the requirement of the girder Duan Jiexian, so that the curve girder bridge needs to be established to meet the line requirement, the curve girder bridge mainly adopts a stay cable to carry out traction and strengthen the supporting effect, the main tower structure is a very important structure of the whole cable-stayed bridge and provides a traction fulcrum for the stay cable, but the structure of the existing main tower, especially the installation position of the stay cable, is mostly fixed and cannot be adjusted according to the actual construction environment, and the installation of the stay cable can be met only by adjusting the external environment, but the mode can greatly increase the construction difficulty, and a great amount of manpower, material resources and time are required to be consumed, and the whole efficiency is low to be improved. Disclosure of Invention In order to overcome the defects of the prior art, the technical problem to be solved by the invention is to provide the inhaul cable mounting frame and the main tower of the cable-stayed bridge using the inhaul cable mounting frame, which are novel in structure, can conveniently adjust the positions of the supporting and connecting parts, and are convenient to adapt to the installation and fixation of inhaul cables, so that the construction difficulty is reduced, and the working efficiency is improved. To achieve the purpose, the invention adopts the following technical scheme: The invention provides a inhaul cable mounting frame which comprises a bracket in an annular shape, wherein a first clamping groove is formed in the edge of the top surface of the bracket, a closed-loop structure is formed around the center of the bracket by the first clamping groove, a plurality of sliding seat assemblies are arranged in the first clamping groove, the sliding seat assemblies can slide along the first clamping groove and can be locked by bolts, hanging lugs are fixedly arranged on the sliding seat assemblies and are higher than the notch of the first clamping groove, the bottom of the groove wall of the first clamping groove, which is close to the center of the bracket, is sunken inwards to form a clamping groove, a clamping block is arranged on the sliding seat assembly corresponding to the clamping groove, one end of the clamping block stretches into the clamping groove, and the top surface of the clamping block abuts against the top wall of the clamping groove. In the preferred technical scheme, the bracket comprises a ring-shaped bottom plate, a first convex ring and a second convex ring are fixedly arranged on the edge of the bottom plate, the outer diameter of the first convex ring is consistent with the outer diameter of the bottom plate, the outer diameter of the second convex ring is smaller than the inner diameter of the first convex ring, an extension ring is fixedly arranged on one side, close to the first convex ring, of the top of the second convex ring, a third convex ring is fixedly arranged on the top, close to the edge of the first convex ring, of the extension ring, a first clamping groove is formed by the first convex ring and the third convex ring, a clamping groove is formed by the second convex ring and the extension ring, the sliding seat assembly comprises a sliding block and a clamping block, the shape of the sliding block is matched with the shape of the first clamping groove, the clamping lug is fixedly arranged at the top of the sliding block, the bottom of the sliding block is provided with a second clamping groove, the notch of the second clamping groove extends to the bottom of the sliding block, the notch of the sliding block is narrowed, the clamping block is matched with the shape of the second clamping groove, the clamping block penetrates through the second clamping groove, two ends of the clamping block can respectively support the inner wall of the first convex ring and the outer wall of the second convex ring, the clamping block and the outer wall of the sliding block are respectively, the sliding block is connected with the top surface of the sliding block through the first clamping groove and the top through the clamping groove, and the top surface of the first clamping groove is connected with the top through the clamping groove. In the preferred technical scheme of the invention, a thickened convex ring is fixedly arranged at the top of the outer wall o