CN-117536131-B - Vertical device of turning of unidirectional self-locking bridge

CN117536131BCN 117536131 BCN117536131 BCN 117536131BCN-117536131-B

Abstract

The invention provides a unidirectional self-locking type bridge vertical swivel device which comprises a bridge main tower, wherein one end of the bridge main tower is rotationally connected to a tower girder consolidation section, the middle part of the bridge main tower is temporarily supported by a unidirectional self-locking type supporting structure and is arranged on a bridge panel girder, and when a traction system drives the bridge main tower to rotate around the tower girder consolidation section from an initial position, the unidirectional self-locking type supporting structure moves in a matched mode with the bridge main tower and forms unidirectional self-locking type support for the bridge main tower. According to the invention, the unidirectional self-locking support structure is arranged between the bridge deck girder and the bridge main tower, so that when the traction system drives the bridge main tower to rotate around the tower girder consolidation section from an initial position, the unidirectional self-locking support effect around the hinge plane in the vertical rotation construction of the bridge is realized, and the safety guarantee is provided for the unidirectional rotation construction process of the bridge.

Inventors

TAO SHUPING
WANG JINGFENG
PAN XUEBEI
LI BEIBEI
ZHANG BIAO
XIA LIJIAN
LEI SHIWEI
SUN ZHENG
ZHANG FEI
YE SHENGBIN
SUN BAICHUAN
WU XIAO
YAN ZHOUWEI
YANG YI

Assignees

安徽水安建设集团股份有限公司
合肥市重点工程建设管理局
安徽省高等级公路工程监理有限公司
合肥工业大学

Dates

Publication Date: 20260512
Application Date: 20231208

Claims (7)

1. A unidirectional self-locking type bridge vertical rotating device is characterized by comprising a bridge main tower (1), one end of the bridge main tower (1) is rotationally connected to a tower girder consolidation section (2), the middle part of the bridge main tower is temporarily supported by a unidirectional self-locking type supporting structure (3) and is arranged on a bridge panel girder (4), when a traction system drives the bridge main tower (1) to rotate around the tower girder consolidation section (2) from an initial position, the unidirectional self-locking type supporting structure (3) moves in a matched mode with the bridge main tower (1) and forms unidirectional self-locking type support for the bridge main tower (1), the unidirectional self-locking type supporting structure (3) comprises a semicircular fixed gear (30), a movable gear (31), a first connecting rod (32), a second connecting rod (33), a third connecting rod (34) and a translational self-locking device (35), the translational self-locking device (35) and the semicircular fixed gear (30) are all fixed on the bridge panel girder (4), one end of the first connecting rod (32) is fixed on the axis of the semicircular fixed gear (30) through a pin shaft, one end of the second main rod (33) is connected with the first connecting rod (31) in a rotary mode, the other end of the second connecting rod (33) is connected with the first connecting rod (34) in a sliding mode, and the other end of the first connecting rod (34) is connected with the first connecting rod (34) in a sliding mode, the semicircular fixed gear (30) and the movable gear (31) are meshed.
2. The unidirectional self-locking bridge vertical swivel device according to claim 1, wherein the translational unidirectional self-locking device (35) comprises two fixed boxes (350) and a translational sliding block (351) which are arranged on a bridge deck girder (4), the translational sliding block (351) is of a channel structure with an inner cavity, a vertical partition plate (3510) is fixed in the middle, return springs (3511) are welded on two sides of the vertical partition plate (3510), sliding blocks (3512) are movably connected on two sides of the translational sliding block (351) through the return springs (3511), movable clamping teeth (3513) are arranged at the outer ends of the sliding blocks (3512), fixed clamping grooves (3500) and horizontal sliding ways (3501) are formed in the inner sides of the fixed boxes (350), protrusions (3514) which are correspondingly matched with the horizontal sliding ways (3501) are arranged on two sides of the bottom of the translational sliding block (351), when the sliding block (351) slides in the horizontal sliding ways (3501) of the two fixed boxes (350) through the protrusions (3514) on the two sides of the bottom, and the movable clamping teeth (3513) are connected with the top of the first translational sliding block (3500) in a self-locking mode.
3. The unidirectional self-locking bridge vertical swivel device of claim 2, wherein the fixing clip groove (3500) is fishbone-shaped.
4. The unidirectional self-locking type bridge vertical turning device according to claim 2, wherein a groove (35120) is formed in the center of four sides of the sliding block (3512), and clamping blocks (3515) corresponding to the groove (35120) are arranged around the channel structure of the internal cavity of the translation sliding block (351).
5. The unidirectional self-locking type bridge vertical swivel device according to claim 1, wherein the bridge main tower (1) comprises two beams (10) connected in a herringbone shape, one end of each beam (10) is rotatably connected to a tower beam consolidation section (2), and the middle part is temporarily supported and installed on a bridge deck main beam (4) through a unidirectional self-locking type supporting structure (3).
6. The unidirectional self-locking bridge vertical swivel device according to claim 5, wherein the beam column (10) is connected with the tower beam consolidation section (2) through a unidirectional self-locking swivel hinge (5).
7. The unidirectional self-locking bridge vertical rotating device according to claim 6, wherein the unidirectional self-locking rotating hinge (5) comprises a fixed lug plate (50) and a rotating lug plate (51), a circular ring (500) is arranged at the rotating end of the fixed lug plate (50), a self-locking groove rotating hole (5000) is formed in the inner ring of the circular ring (500), a clamping groove is formed in the rotating side face of a rotating shaft (510) of the rotating lug plate (51), a spring (511) is arranged in the clamping groove, one end of the spring (511) is fixedly connected with the rotating lug plate (51), a unidirectional gear (512) is connected with the other end of the spring, and when the rotating lug plate (51) is rotatably arranged in the self-locking groove rotating hole (5000) of the fixed lug plate (50) through the rotating shaft (510), the unidirectional gear (512) and the self-locking groove rotating hole (5000) form a unidirectional self-locking effect.

Description

Vertical device of turning of unidirectional self-locking bridge Technical Field The invention relates to the technical field of bridge construction, in particular to a unidirectional self-locking type bridge vertical swivel device. Background The bridge swivel construction is a construction method for dynamically rotating a bridge body by means of an external force traction system after a bridge structure is manufactured (poured or spliced) at a non-design axis position. The technology has the greatest application advantages that the influence on normal traffic is reduced to the greatest extent, the terrain condition of the construction site can be effectively utilized, and the technology is suitable for urban arterial road construction with higher traffic concentration. According to the rotation direction of the bridge structure, it can be divided into a vertical swivel construction method, a horizontal swivel construction method and a method combining horizontal swivel and vertical swivel. The bridge vertical swivel construction method is a construction method for rotationally dragging a bridge structure manufactured by attaching to the ground to a designed height around a swivel hinge by means of a traction system. The vertical turning system consists of a turning hinge, a horizontal jig frame, a compression bar, a traction system, an anchoring system and the like. The main tower is assembled on the horizontal splicing jig frame, the main tower is connected with the tower beam consolidation section through a rotary hinge, and is tied on the bridge deck girder through a traction system and an anchoring system, and the traction system jack is tensioned to realize the vertical rotation of the main tower. The key problem of the bridge swivel construction technology is the overall stability of a vertical rotating system of the bridge body. The construction difficulty of the vertical swivel is that the stability of the main tower is poor in the unidirectional vertical rotation process, and the main tower is extremely easy to be influenced by factors such as installation deviation, wind load and temperature effect, unbalanced traction force and the like. Traditional vertical swivel construction of bridge only sets up interim wind generally and props the lateral stability who guarantees rotational system, and the security of the unidirectional swivel work of bridge work progress is difficult to obtain the guarantee. The novel unidirectional self-locking supporting device can be arranged on the rotating parts of the bridge deck girder and the main tower, and achieves the unidirectional self-locking supporting effect around the hinge plane in the vertical rotation construction of the bridge. Disclosure of Invention In order to solve the problems, the invention aims to provide the unidirectional self-locking type vertical bridge swivel device, which is characterized in that a unidirectional self-locking type supporting structure is arranged between a bridge deck girder and a bridge main tower, when a traction system drives the bridge main tower to rotate around a tower girder consolidation section from an initial position, the unidirectional self-locking supporting effect around a swivel plane in the vertical bridge swivel construction is realized, and the safety guarantee is provided for the unidirectional bridge swivel construction process. In order to achieve the above purpose, the technical scheme of the invention is realized as follows: The utility model provides a vertical device of turning of one-way auto-lock bridge, includes the bridge main tower, the one end of bridge main tower rotates to be connected at the tower girder concreties the section, and the middle part is supported and is installed on the bridge deck girder temporarily through one-way self-locking bearing structure, when traction system drove the bridge main tower and revolve around the tower girder concretes the section by initial position, one-way self-locking bearing structure cooperatees the motion and forms one-way auto-lock to the bridge main tower and support. Further, the unidirectional self-locking support structure comprises a semicircular fixed gear, a movable gear, a first connecting rod, a second connecting rod, a third connecting rod and a translational unidirectional self-locking device, wherein the translational unidirectional self-locking device and the semicircular fixed gear are both fixed on a bridge deck girder, one end of the first connecting rod is fixed at the axle center of the semicircular fixed gear through a pin shaft, one end of the second connecting rod is rotationally connected with a bridge main tower, one end of the third connecting rod is rotationally and slidingly connected with the translational unidirectional self-locking device, the other ends of the first connecting rod, the second connecting rod and the third connecting rod are both fixed at the axle center of the movable gear, and the semicircular fix