CN211922257U - Tie rod embedded part - Google Patents

Abstract

The utility model relates to a bridge construction field especially relates to a tie rod built-in fitting, including tie rod end, the straight pre-buried pipe of anchor and pre-buried steel pipe, under the anchor the both ends of straight pre-buried pipe respectively with tie rod end and pre-buried steel pipe butt joint, pre-buried steel pipe is crooked to be buried underground in the concrete, a port of pre-buried steel pipe exposes outside concrete structure for concrete is drawn forth to the cable body steel strand wires that will be fixed in the tie rod end, the utility model discloses a with the crooked design of tie rod built-in fitting, can bury deeply in the concrete to the both ends that make the tie rod can firmly be fixed with the concrete structure of limit arch, in order to bear the great horizontal thrust of arched bridge.

Description

Tie rod embedded part

[ technical field ] A method for producing a semiconductor device

The utility model relates to a bridge construction field especially relates to a tie rod built-in fitting.

[ background of the invention ]

One of the stress characteristics of the arch bridge is that the arch bridge has a large horizontal thrust, and therefore, tie bars are often required to be installed in the arch bridge, for example, two ends of each tie bar are respectively fixed at the end parts of the side arches of the arch bridge through tie bar embedded parts to bear the horizontal thrust of the arch ends.

The existing tie bar embedded part cannot be deeply embedded in concrete, so that two ends of a tie bar cannot be firmly fixed with a concrete structure of an arch, the stability is poor, and the existing tie bar embedded part cannot bear the larger horizontal thrust of an arch bridge.

[ Utility model ] content

The utility model aims at providing a tie rod built-in fitting can bury deeply in the concrete to the both ends that make the tie rod can firmly be fixed with the concrete structure of limit arch, in order to bear the great horizontal thrust of arched bridge.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a tie rod built-in fitting, including tie rod end, the straight pre-buried pipe of anchor and pre-buried steel pipe down, under the anchor straight pre-buried pipe both ends respectively with tie rod end and pre-buried steel pipe butt joint, pre-buried steel pipe is crooked to be buried underground in the concrete, a port of pre-buried steel pipe exposes outside concrete structure for the cable body steel strand wires that will be fixed in the tie rod end draws out the concrete.

Furthermore, the tie bar end comprises a supporting cylinder, an anchor backing plate, an anchor plate and a connecting cylinder, the connecting cylinder is in butt joint with one end of the supporting cylinder through the anchor backing plate, the other end, far away from the anchor backing plate, of the supporting cylinder is fixedly connected with the anchor plate, and the supporting cylinder and the connecting cylinder are communicated to form an accommodating space for accommodating the cable body steel strand of which the end part is fixed on the anchor plate.

Further, the straight pre-buried pipe under the anchor is in butt joint with the connecting cylinder, and the aperture of the port far away from the connecting cylinder is gradually reduced.

Furthermore, the tie rod end also comprises a nut, and the nut is screwed on the outer side of the support cylinder and abuts against the anchor backing plate.

Optionally, the anchor plate cover is provided at a port of the support cylinder.

Furthermore, the anchor plate is fixedly connected with a locking device for reinforcing the connection between the anchor plate and the cable body steel strand.

Furthermore, the tie rod end also comprises a protective cover, and the protective cover semi-surrounds the support cylinder, the anchor plate, the nut and the anti-loosening device.

Furthermore, the outer cylinder wall of the connecting cylinder is wound with spiral ribs.

Compared with the prior art, the utility model discloses possess following advantage:

1. the utility model provides a tie rod built-in fitting, including tie rod end, the straight pre-buried pipe under the anchor and pre-buried steel pipe, under the anchor straight pre-buried pipe both ends respectively with tie rod end and pre-buried steel pipe butt joint, pre-buried steel pipe is crooked to be buried underground in the concrete, a port of pre-buried steel pipe exposes outside concrete structure for concrete is drawn forth to the cable body steel strand wires that will be fixed in the tie rod end, through crooked design, can bury deeply in the concrete, thereby the concrete structure that makes the both ends of tie rod firmly encircle with the limit is fixed, in order to bear the great horizontal thrust of arched bridge.

2. The utility model provides a tie rod built-in fitting, its tie rod end include a support section of thick bamboo, anchor backing plate, anchor slab and connecting cylinder, the connecting cylinder pass through the anchor backing plate with the one end butt joint of a support section of thick bamboo, the other end that the anchor backing plate was kept away from to a support section of thick bamboo with the anchor slab rigid coupling, the inside holding space that link up of a support section of thick bamboo and connecting cylinder for lay the end fixing in the cable body steel strand wires of anchor slab to with the both ends and the tie rod end stable connection of cable body, and through the concrete placement back, be connected with the tip stable of limit arch, in order to bear the great horizontal thrust of arched bridge.

3. The anchor plate is fixedly connected with a locking device and used for reinforcing the connection between the anchor plate and the cable body steel strand, so that the cable body is stably connected with the tie rod end.

4. The supporting cylinder, the anchor plate, the nut and the anti-loosening device are semi-surrounded by the protective cover, so that rainwater is prevented from flowing into the protective cover, the interior of the protective cover is prevented from being corroded, the connection firmness of the tie bars is guaranteed, and the safety of a bridge is guaranteed.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

[ description of the drawings ]

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a tie bar embedded part according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a tie bar embedded part according to another embodiment of the present invention; for convenience of explanation, the cable body of the tie bar is also shown.

[ detailed description ] embodiments

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, the utility model provides a tie rod embedded part, can bury deeply in the concrete to make the both ends of tie rod can firmly be fixed with the concrete structure of limit arch, in order to bear the great horizontal thrust of arched bridge. In one embodiment, the tie bar embedded part comprises an embedded steel pipe 1, a tie bar end 2 and an under-anchor straight embedded pipe 3, two ends of the under-anchor straight embedded pipe 3 are respectively butted with the tie bar end 2 and the embedded steel pipe 1, the embedded steel pipe 1 is bent and embedded in concrete, and one port of the embedded steel pipe 1 is exposed outside the concrete structure and used for leading a cable steel strand fixed at the tie bar end 2 out of the concrete.

Specifically, the depth of the tie rod end 2 and the anchor lower straight embedded pipe 3 embedded in the concrete is larger than that of the embedded steel pipe 1, the embedded steel pipe 1 is gradually bent upwards from the joint of the anchor lower straight embedded pipe 3 until the port is exposed outside the concrete structure, and the bending amplitude meets the design requirement.

Further, as shown in fig. 2, the tie rod end 2 includes a connecting cylinder 21, a supporting cylinder 22, an anchor backing plate 23, a nut 24 and an anchor plate 25, and the supporting cylinder 22 and the connecting cylinder 21 are both of a cylindrical structure with a hollow interior. Wherein, the aperture of connecting cylinder 21 slightly is greater than the aperture of a support section of thick bamboo 22, connecting cylinder 21 through anchor backing plate 23 with the butt joint of the one end of a support section of thick bamboo 22, anchor backing plate 23 connect in the butt joint department of connecting cylinder 21 with a support section of thick bamboo 22 soon, nut 24 connect in the support section of thick bamboo 22 outside soon, and with anchor backing plate 23 offsets for consolidate connecting cylinder 21 and support section of thick bamboo 22 be connected.

The other end of the supporting cylinder 22 far away from the anchor backing plate 23 is fixedly connected with the anchor plate 25, the anchor plate 25 is covered on the port of the supporting cylinder 22, the anchor plate 25 is provided with a plurality of through holes communicated with the supporting cylinder 22, and the supporting cylinder 22 and the connecting cylinder 21 are internally communicated to form an accommodating space for accommodating the cable body steel strand 41 of the anchor plate 25. Specifically, when the straight embedded pipe 3 under the anchor is butted with the cable body 4, the cable body 4 is inserted into the straight embedded pipe 3 under the anchor until the end of the cable body 4 reaches the accommodating space formed by the supporting cylinder 22 and the connecting cylinder 21, and the cable body steel strand 41 led out from the end of the cable body 4 can be firmly fixed on the anchor plate 25 after passing through the accommodating space and the through hole of the anchor plate 25.

The utility model discloses a tie rod end 2, its internal structure is compact, and the connection between each structure is inseparable, can be with the both ends of cable body 4 and tie rod end 2 stable connection to through concrete placement back, with the tip firm connection of limit arch, in order to bear the great horizontal thrust of arched bridge.

Optionally, the diameter of the port of the straight embedded pipe under anchor 3 away from the connecting cylinder 21 is gradually reduced until the diameter is equivalent to that of the embedded pipe under anchor 1, so as to strengthen the connection between the cable body 4 and the straight embedded pipe under anchor 3.

Further, the anchor plate 25 is fixedly connected with a locking device 26, and the cable body steel strand 41 is further inserted into and connected with the locking device 26, so that the locking device 26 is exerted, and the connection between the anchor plate 25 and the cable body steel strand 41 is reinforced, so as to enhance the connection between the cable body 4 and the tie rod end 2.

Further, the tie bar further comprises a cylindrical protective cover 27, one end of the cylindrical protective cover is open, the other end of the cylindrical protective cover is sealed, the protective cover 27 semi-surrounds the supporting cylinder 22, the anchor plate 25, the nut 24 and the anti-loosening device 26, and the open end of the cylindrical protective cover abuts against the anchor backing plate 23, so that the supporting cylinder 22, the anchor plate 25, the nut 24 and the anti-loosening device 26 are sealed in the protective cover 27 and isolated from the outside, external pollutants are prevented from flowing into the protective cover, parts inside the protective cover are corroded, the connection firmness of the tie bar is guaranteed, and the safety of a bridge is guaranteed.

Optionally, the outer cylinder wall of the connecting cylinder 21 is provided with a spiral rib 28 and a local reinforcing rib in a winding manner, so as to improve the compressive strength of the concrete after anchoring and prevent the concrete under anchoring from being locally damaged under the action of tensile stress.

Although a few exemplary embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these exemplary embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims (8)

1. The tie rod embedded part is characterized by comprising a tie rod end, an anchor lower straight embedded pipe and an embedded steel pipe, wherein two ends of the anchor lower straight embedded pipe are respectively butted with the tie rod end and the embedded steel pipe, the embedded steel pipe is bent and embedded in concrete, and one port of the embedded steel pipe is exposed outside the concrete structure and used for leading a cable body steel strand fixed at the tie rod end out of the concrete.

2. The tie bar embedded part according to claim 1, wherein the tie bar end comprises a support cylinder, an anchor backing plate, an anchor plate and a connecting cylinder, the connecting cylinder is butted with one end of the support cylinder through the anchor backing plate, the other end of the support cylinder far away from the anchor backing plate is fixedly connected with the anchor plate, and the support cylinder and the connecting cylinder are communicated to form a containing space for containing the cable body steel strand with the end part fixed on the anchor plate.

3. The tie rod embedment of claim 2, wherein the straight under-anchor embedment pipe interfaces with the connector barrel with a gradually decreasing port aperture distal from the connector barrel.

4. The tie rod embedment of claim 2, wherein the tie rod ends further include nuts threaded on an outer side of the support cylinder and abutting the anchor backing plate.

5. The tie rod embedment of claim 2, wherein the anchor plate cover is provided at a port of the support barrel.

6. The tie rod embedment of claim 2, wherein a locking device is fixedly attached to the anchor plate for reinforcing the connection of the anchor plate to the cable body strands.

7. The tie rod embedment of claim 2, wherein the tie rod ends further include a protective cover that semi-encloses the support cylinder, anchor plate, nut, and anti-loosening device.

8. The tie rod embedment of claim 2, wherein the outer cylindrical wall of the connector barrel is wrapped with helical ribs.

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