CN-116065485-B - Main cable steering support

CN116065485BCN 116065485 BCN116065485 BCN 116065485BCN-116065485-B

Abstract

The invention relates to a main cable steering support which comprises a support, a vertical limiting structure and a horizontal limiting structure, wherein the vertical limiting structure and the horizontal limiting structure are both fixed on the support, the horizontal limiting structure is configured to enable a main cable to deviate a first preset distance in a horizontal plane, and the vertical limiting structure is configured to enable the main cable to deviate a second preset distance in a vertical direction. According to the invention, the steering bracket is built between the anchorage and the main tower, the main rope starts from the anchorage, the deflection of the main rope in the horizontal plane direction is changed through the horizontal limiting structure, then the limit of the main rope in the height direction is changed after the main rope passes through the vertical limiting structure, the traveling path of the main rope between the anchorage and the main tower is changed, and the problems that the main rope has larger deviation in spatial position and angle with the main tower at the anchorage, the two ends of the main rope are bent too much, larger friction damage exists, the use safety of the cable crane is affected, and the construction quality of the main rope of the suspension bridge cannot be ensured are avoided.

Inventors

HU JUN
JIANG YONG
GUAN RONG
XIA GANG
DAI BAOPING
FAN CHAO
CUI YIYANG
LU PENG
LI YANZHE
YAO FAHAI
ZHOU GONGJIAN
TU MANMING

Assignees

中铁大桥局集团有限公司

Dates

Publication Date: 20260505
Application Date: 20230217

Claims (8)

1. A main cable steering bracket, comprising: a bracket (1); the vertical limiting structure (2) and the horizontal limiting structure (3), wherein the vertical limiting structure (2) and the horizontal limiting structure (3) are both fixed on the bracket (1); The horizontal limiting structure (3) is configured to offset the main rope (4) by a first preset distance in a horizontal plane, and the vertical limiting structure (2) is configured to offset the main rope (4) by a second preset distance in a vertical direction; the vertical limit structure (2) comprises: the anchor plates (21) are arranged at intervals along the width direction of the bracket (1), and the anchor plates (21) are fixed on the bracket (1); The four first pin shafts (22), the four first pin shafts (22) are arranged along the height direction of the bracket (1), the length direction of each first pin shaft (22) is consistent with the width direction of the bracket (1), and the four first pin shafts (22) penetrate through a plurality of anchor plates (21); A first limiting space is formed between a first pin shaft (22) and a second pin shaft (22) along the height direction of the bracket (1), and is divided into a plurality of first limiting units through a plurality of anchor plates (21), a second limiting space is formed between a third pin shaft (22) and a fourth pin shaft (22), and the second limiting space is divided into a plurality of second limiting units through a plurality of anchor plates (21); each horizontal limit structure (3) comprises: The second pins (31) are in one-to-one correspondence with the anchor plates (21) and are fixed on the corresponding anchor plates (21), and the length direction of each second pin (31) is consistent with the length direction of the corresponding anchor plate (21); a third limit space is formed between any two adjacent second pin shafts (31); the main cable steering support is used for being built between the anchorage and the main tower.
2. Main cable steering bracket according to claim 1, characterized in that the number of the horizontal limit structures (3) is two, and the vertical limit structures (2) are fixed between the two horizontal limit structures (3); one horizontal limiting structure (3), the vertical limiting structure (2) and the other horizontal limiting structure (3) are arranged according to the beam penetrating direction of the main rope (4).
3. Main cable steering support according to claim 1, characterized in that a first nylon sleeve (23) is rotatably mounted on the outer wall of the first pin shaft (22) in a space formed by a plurality of the anchor plates (21) arranged at intervals.
4. Main cable steering bracket according to claim 1, wherein each of said horizontal limiting structures (3) further comprises: three anchor boxes (32) are arranged at intervals along the height direction of the bracket (1), and the three anchor boxes (32) are fixed on a plurality of anchor plates (21); Each second pin shaft (31) sequentially penetrates through and is fixed to three anchor boxes (32), and each third limiting space is divided into two third limiting units through the three anchor boxes (32).
5. Main cable steering support according to claim 4, characterized in that in the space formed by the three anchor boxes (32) arranged at intervals, the outer wall of each second pin (31) is sleeved with a second nylon sleeve (33).
6. Main cable steering bracket according to claim 1, characterized in that the bracket (1) comprises: The beam comprises two vertical beams (11), wherein a cross beam (12) is fixed between the top ends of the two vertical beams (11); The two distance adjusting structures (13), the two distance adjusting structures (13) are in one-to-one correspondence with the two vertical beams (11) and are fixed on the corresponding vertical beams (11); the two distance adjusting structures (13) adjust the horizontal height of the cross beam (12).
7. The main cable steering bracket according to claim 6, wherein each of the vertical beams (11) comprises a first upright (111) and a second upright (112); each distance adjusting structure (13) comprises at least one fixing bolt (131) and a plurality of backing plates (132); A plurality of backing plates (132) are superposed between the first upright (111) and the second upright (112), and the fixing bolts (131) penetrate through the plurality of backing plates (132) so as to fix the plurality of backing plates (132) between the first upright (111) and the second upright (112).
8. Main cable steering support according to claim 6, characterized in that at least one diagonal support beam (14) is fixed to each of said vertical beams (11).

Description

Main cable steering support Technical Field The invention relates to the field of bracket construction, in particular to a main cable steering bracket. Background Suspension bridges, also known as suspension bridges (suspensionbridge), refer to brackets having cables (or steel chains) suspended by cable towers and anchored to both sides (or ends of the bridge) as the primary load-bearing members of the superstructure. The cable geometry is determined by the equilibrium conditions of the forces, typically approaching a parabola. A plurality of hanging rods hang from the cable, so as to hang the bridge deck, stiffening girders are arranged between the bridge deck and the hanging rods, and a combined system is formed by the hanging rods and the cable, so that deflection deformation caused by load is reduced. In the related art, because the space position and the angle deviation exist between the main rope at the anchorage and the main rope at the main tower, the space positions of the main rope of the cable crane and the anchorage are in conflict, so that certain friction damage is caused, the use safety of the cable crane is affected, and the construction quality of the main rope of the suspension bridge cannot be guaranteed. Disclosure of Invention The embodiment of the invention provides a main rope steering bracket, which aims to solve the problems that the space positions of a main rope and an anchorage of a cable crane in the related art are in conflict, so that certain friction damage is caused, the use safety of the cable crane is influenced, and the construction quality of a main rope of a suspension bridge cannot be ensured. The embodiment of the invention provides a main cable steering bracket, which comprises: A bracket; the vertical limiting structure and the horizontal limiting structure are both fixed on the bracket; The horizontal limiting structure is configured to offset the main rope by a first preset distance in a horizontal plane, and the vertical limiting structure is configured to offset the main rope by a second preset distance in a vertical direction. In some embodiments, the number of the horizontal limiting structures is two, and the vertical limiting structures are fixed between the two horizontal limiting structures; One horizontal limiting structure, the vertical limiting structure and the other horizontal limiting structure are arranged according to the beam penetrating direction of the main rope. In some embodiments, the vertical limit structure comprises: the anchor plates are arranged at intervals along the width direction of the bracket and are fixed on the bracket; the four first pin shafts are arranged along the height direction of the bracket, the length direction of each first pin shaft is consistent with the width direction of the bracket, and the four first pin shafts penetrate through a plurality of anchor plates; A first limiting space is formed between a first pin shaft and a second pin shaft along the height direction of the bracket, and the first limiting space is divided into a plurality of first limiting units through a plurality of anchor plates; and a second limiting space is formed between the third first pin shaft and the fourth first pin shaft, and the second limiting space is divided into a plurality of second limiting units through a plurality of anchor plates. In some embodiments, in the space formed by the plurality of anchor plates arranged at intervals, the outer wall of the first pin shaft is rotatably provided with a first nylon sleeve. In some embodiments, each of the horizontal limiting structures comprises: The second pin shafts are in one-to-one correspondence with the anchor plates and are fixed on the corresponding anchor plates, and the length direction of each second pin shaft is consistent with the length direction of the corresponding anchor plate; And a third limiting space is formed between any two adjacent second pin shafts. In some embodiments, each of the horizontal limiting structures further comprises: The three anchor boxes are arranged at intervals along the height direction of the bracket and are fixed on the anchor plates; each second pin shaft sequentially penetrates through and is fixed to three anchor boxes, and each third limiting space is divided into two third limiting units through the three anchor boxes. In some embodiments, in the space formed by the three anchor boxes arranged at intervals, the outer wall of each second pin shaft is sleeved with a second nylon sleeve. In some embodiments, the stent comprises: the beam is fixed between the top ends of the two vertical beams; the two distance adjusting structures are in one-to-one correspondence with the two vertical beams and are fixed on the corresponding vertical beams; The two distance adjusting structures are used for adjusting the horizontal height of the cross beam. In some embodiments, each of the vertical beams includes a first column and a second column; Each di