CN219195645U - Stay cable structure for cable-stayed bridge - Google Patents

Abstract

The utility model provides a stay cable structure for a cable-stayed bridge, which comprises a fork lug and a threaded connecting rod, wherein a spherical groove is formed in the inner side of the end part of the fork lug, a through hole is formed in the middle of the bottom of the groove, a connecting piece is arranged at the groove, the connecting piece comprises a first cylinder, a second cylinder, a sphere and a third cylinder which are connected in sequence, and the connecting piece is clamped at the groove in a rotating way; one end of the threaded connecting rod is connected with the first column body; the inner side of the fork ear is provided with a locking piece, the locking piece is provided with a universal sleeve, the third column is of a prismatic structure, the universal sleeve moves along the axial direction of the third column, the locking piece can be fixed on the fork ear through bolts, and the universal sleeve moves to be sleeved on the third column to lock the connecting piece; the novel rotary adjusting device is novel in structure, and can meet the requirements of space stay ropes or inclined suspenders on positioning and angle adjustment in a rotary adjusting mode, and the rotary adjusting part after adjustment can be locked, so that the follow-up steering or loosening is effectively prevented.

Description

Stay cable structure for cable-stayed bridge

Technical Field

The utility model relates to the field of bridge guys, in particular to a stay cable structure for a cable-stayed bridge.

Background

The inhaul cable is a common force transmission component in the field of civil engineering and is widely applied to cable membrane structure buildings, cable-stayed bridges, suspension bridges, tied arch bridges and the like. With further research and innovation of aesthetic modeling, space guy cable architectures with attractive modeling and unique structure are widely used. In particular in the bridge field, space multi-cable-face cable-stayed bridges and space inclined suspender tied arch bridges are increasingly favored by designers because of attractive appearance.

For the space inhaul cable system bridge, angles of 3 directions of vertical direction, vertical direction and horizontal direction exist in the construction process. When the guy cable is hung, the guy cable can be influenced by the space position and the line shape of the bridge tower or the arch rib, so that the upper end and the lower end of the guy cable cannot be positioned on the same straight line, and a certain deflection angle is generated. The conventional fork ear type inhaul cable structure is capable of adjusting the angle in one direction, so that an unadjustable deflection angle is easy to generate in the other plane, the stress of the inhaul cable structure is extremely unfavorable, and therefore the conventional structure cannot meet the requirements of a space inhaul cable system in the technical field, and needs to be improved.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide the stay cable structure for the cable-stayed bridge, which is novel in structure, can meet the requirements of positioning and angle adjustment of a space stay cable or a stay boom by adopting a rotary adjustment mode, and can lock the rotary adjustment part after the adjustment is finished, thereby effectively preventing the follow-up occurrence of steering or loosening. To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a stay cable structure for a cable-stayed bridge, which comprises fork lugs, threaded connecting rods, anchor cups, extension cylinders and stay cables; the inner side of the end part of the fork lug is provided with a spherical groove, the middle part of the groove bottom of the groove is provided with a through hole, the groove is provided with a connecting piece, the connecting piece comprises a first cylinder, a second cylinder, a sphere and a third cylinder which are connected in sequence, the diameter of the second cylinder is matched with the diameter of the through hole, the diameter of the sphere is matched with the inner diameter of the groove, and the connecting piece is rotationally clamped at the groove; the end face of one end of the threaded connecting rod is provided with a jack, the shape of the jack is matched with that of a first column body, and the first column body is in plug-in fit with the jack and is fixed through a bolt penetrating through the threaded connecting rod and the first column body; the inner side of the fork ear is provided with a locking piece, the locking piece is provided with a universal sleeve, the third column is of a prismatic structure, the universal sleeve moves along the axial direction of the third column, the locking piece can be fixed on the fork ear through bolts, and the universal sleeve moves to be sleeved on the third column to lock the connecting piece.

In the preferred technical scheme of the utility model, the locking piece comprises a universal sleeve and a pushing frame, the pushing frame comprises a pushing plate and sliding seats fixedly arranged at two ends of the pushing plate, clamping strips are fixedly arranged on the inner walls of two sides of the fork lugs, the clamping strips extend along the axial direction of the through holes, the sliding seats are slidably clamped on the clamping strips, the sliding seats can be fixed through bolts penetrating through the side walls of the fork lugs, the middle part of the pushing plate is provided with a mounting opening, and the universal sleeve is fixedly arranged at the mounting opening of the pushing plate.

In a preferred technical scheme of the utility model, the first column is of a prismatic structure, and the shape of the jack is matched with the shape of the first column.

In the preferred technical scheme of the utility model, the first column body, the second convex column, the sphere and the third convex column are of an integrated structure.

The beneficial effects of the utility model are as follows:

the utility model provides a stay cable structure for a cable-stayed bridge, which is novel in structure, wherein a spherical groove is formed in the inner side of the end part of a fork lug, a through hole is formed in the middle of the bottom of the groove, a connecting piece is arranged at the groove, the connecting piece comprises a first cylinder, a second cylinder, a sphere and a third cylinder which are sequentially connected, the diameter of the second cylinder is matched with the diameter of the through hole, the diameter of the sphere is matched with the inner diameter of the groove, and the connecting piece is rotationally clamped at the groove, so that the rotation adjustment can be realized, and the requirements of positioning and angle adjustment of a stay cable or a diagonal boom are met; and the fork ear is provided with a locking piece, the locking piece is provided with a universal sleeve, and the universal sleeve can be sleeved at the third convex column and locks the third convex column, so that the locking of the connecting piece is finished, and further, the subsequent steering or loosening of the stay cable or the inclined suspender is effectively prevented.

Drawings

Fig. 1 is a schematic structural view of a stay cable structure for a cable-stayed bridge according to an embodiment of the present utility model;

FIG. 2 is a partial cross-sectional view of a stay cable structure for a cable-stayed bridge provided in an embodiment of the utility model;

fig. 3 is a schematic structural view of a connector provided in an embodiment of the present utility model.

In the figure: 100. fork ears; 110. clamping strips; 200. a threaded connecting rod; 300. an anchor cup; 400. an extension tube; 500. a guy cable; 600. a connecting piece; 610. a first column; 620. a second column; 630. a third column; 640. a sphere; 700. a locking member; 710. a universal sleeve; 720. pushing a frame; 721. a push plate; 722. a slide seat.

Description of the embodiments

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 3, in the embodiment of the present utility model, a stay cable structure for a cable-stayed bridge is disclosed, which includes a fork ear 100, a threaded connecting rod 200, an anchor cup 300, an extension cylinder 400, and a stay cable 500; the inner side of the end part of the fork lug 100 is provided with a spherical groove, the middle part of the groove bottom of the groove is provided with a through hole, the groove is provided with a connecting piece 600, the connecting piece 600 comprises a first column 610, a second column 620, a sphere 640 and a third column 630 which are sequentially connected, the diameter of the second column 620 is matched with the diameter of the through hole, the diameter of the sphere 640 is matched with the inner diameter of the groove, and the connecting piece 600 is rotationally clamped at the groove;

the end face of one end of the threaded connecting rod 200 is provided with a jack, the shape of the jack is matched with that of the first cylinder 610, and the first cylinder is in plug-in fit with the jack and is fixed through bolts penetrating the threaded connecting rod and the first cylinder;

the inner side of the fork ear 100 is provided with a locking piece 700, the locking piece 700 is provided with a universal sleeve 710, the third column 630 is of a prismatic structure, the universal sleeve 710 moves along the axial direction of the third column 630, the locking piece 700 can be fixed on the fork ear 100 through bolts, and the universal sleeve 710 moves to be sleeved on the third column 630 to lock the connecting piece 600; one end of the threaded connecting rod, which is far away from the connecting piece, is fixedly connected with the anchor cup, and the inhaul cable extends into the extension cylinder and is in anchoring connection with the anchor cup.

The stay cable structure for the cable-stayed bridge is novel in structure, the inner sides of the end parts of the fork lugs are provided with spherical grooves, the middle parts of the bottoms of the grooves are provided with through holes, the grooves are provided with connecting pieces, each connecting piece comprises a first cylinder, a second cylinder, a sphere and a third cylinder which are sequentially connected, the diameter of the second cylinder is matched with the diameter of the through hole, the diameter of the sphere is matched with the inner diameter of the groove, and the connecting pieces are rotationally clamped at the grooves, so that rotary adjustment can be realized, and the requirements of positioning and angle adjustment of the stay cable or the inclined suspender are met; the fork lug is provided with a locking piece, the locking piece is provided with a universal sleeve, and the universal sleeve can be sleeved at the third convex column to lock the third convex column, so that the locking of the connecting piece is finished, and further, the subsequent steering or loosening of the stay cable or the inclined suspender is effectively prevented; it should be noted that the universal sleeve can be purchased and used in the market, and the specific structure is not described in detail.

Further, the locking member 700 includes a universal sleeve 710 and a pushing frame 720, the pushing frame 720 includes a pushing plate 721 and a sliding seat 722 fixedly arranged at two ends of the pushing plate 721, clamping strips 110 are fixedly arranged on inner walls of two sides of the fork ear 100, the clamping strips extend along an axial direction of the through hole, the sliding seat 722 is slidably clamped on the clamping strips 110 and can be fixed through bolts penetrating through side walls of the fork ear, a mounting opening is formed in the middle of the pushing plate 721, and the universal sleeve 710 is fixedly mounted at the mounting opening of the pushing plate 721; the design of the clamping strip can effectively limit the movement of the locking piece, ensure the movement direction of the locking piece, and enable the insertion part of the universal sleeve to smoothly correspond to and insert into the third convex column, so that locking is realized, and the fork lugs can also conveniently correspond to the hole sites of the sliding seat, thereby facilitating the insertion and installation of the bolts.

Further, the cross section of card strip is T type form structure or trapezoidal form structure, has seted up the spout on the slide correspondence, and the shape of spout and the shape adaptation of card strip, and the slide carries out slip joint cooperation along the card strip through the spout, can prevent effectively that the slide from breaking away from easily on the card strip to strengthen joint strength.

Further, the side wall of the fork lug is provided with a first threaded hole, the sliding seat is correspondingly provided with a second threaded hole, and after the locking piece moves in place, the sliding seat is fixedly connected with the fork lug through a screw.

Further, the push plate and the sliding seat are of an integrated structure, so that the structural strength of the push frame is guaranteed, the universal sleeve penetrates through the mounting opening of the push plate, the outer wall of the universal sleeve is welded and fixed with the push plate, and the structural strength of the whole locking piece can be guaranteed.

Further, the first column 610 has a prismatic structure, and the shape of the insertion hole is adapted to the shape of the first column; the first cylinder is of a prismatic structure, so that rotation between the first cylinder and the jack can be effectively prevented, effective connection between the threaded connecting rod and the connecting piece is ensured, and a joint rotation effect is realized; a first through hole is formed between two opposite side walls of the first cylinder, a second through hole is correspondingly formed in the side wall of the end portion of the threaded connecting rod, and the first cylinder and the end portion of the threaded connecting rod are fixed through bolts penetrating through the first through hole and the second through hole.

Further, the first column 610, the second column 620, the ball 640, and the third column 630 are integrally formed, so as to ensure the structural strength of the connector, and effectively prevent the connector from being broken or damaged.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The utility model is not to be limited by the specific embodiments disclosed herein, and other embodiments are within the scope of the utility model as defined by the claims of the present application.

Claims (4)

1. A stay cable structure for a cable-stayed bridge comprises fork lugs, threaded connecting rods, anchor cups, extension cylinders and stay cables; the method is characterized in that:

the end part of the fork lug is provided with a spherical groove, the middle part of the groove bottom of the groove is provided with a through hole, the groove is provided with a connecting piece, the connecting piece comprises a first cylinder, a second cylinder, a sphere and a third cylinder which are connected in sequence, the diameter of the second cylinder is matched with the diameter of the through hole, the diameter of the sphere is matched with the inner diameter of the groove, and the connecting piece is rotationally clamped at the groove;

the end face of one end of the threaded connecting rod is provided with a jack, the shape of the jack is matched with that of a first column body, and the first column body is in plug-in fit with the jack and is fixed through a bolt penetrating through the threaded connecting rod and the first column body;

the inner side of the fork ear is provided with a locking piece, the locking piece is provided with a universal sleeve, the third column is of a prismatic structure, the universal sleeve moves along the axial direction of the third column, the locking piece can be fixed on the fork ear through bolts, and the universal sleeve moves to be sleeved on the third column to lock the connecting piece.

2. The stay cable structure for a cable-stayed bridge according to claim 1, wherein:

the locking piece includes omnipotent sleeve, pushes away the frame and includes the push pedal, the fixed slide of locating the push pedal both ends, the fixed card strip that is equipped with of both sides inner wall of fork ear, the card strip extends along the axis direction of through-hole, the slide slip card is on the card strip, and the slide accessible runs through the bolt of fork ear lateral wall and fixes, the installing port has been seted up at the middle part of push pedal, omnipotent sleeve fixed mounting is in the installing port department of push pedal.

3. The stay cable structure for a cable-stayed bridge according to claim 1, wherein:

the first cylinder is of a prismatic structure, and the shape of the jack is matched with that of the first cylinder.

4. The stay cable structure for a cable-stayed bridge according to claim 1, wherein:

the first column body, the second column body, the sphere body and the third column body are of an integrated structure.

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