CN216587367U

CN216587367U - Two-way cross connection structure of prestressing tendons

Info

Publication number: CN216587367U
Application number: CN202220013650.XU
Authority: CN
Inventors: 陆来园; 任强; 王丽娜; 颜丙冬; 唐建勇
Original assignee: Beijing Dongfang Huamai Engineering Design Co ltd
Current assignee: Beijing Dongfang Huamai Engineering Design Co ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-05-24
Anticipated expiration: 2032-01-04

Abstract

The utility model belongs to the technical field of the reinforcing bar and specifically relates to a two-way cross connection structure of prestressing tendons is related to, including first prestressing tendons and second prestressing tendons, the fixed cuff that is provided with in bottom of second prestressing tendons, the fixed connection ball that is provided with in top of first prestressing tendons, the arc wall has been seted up to the bottom of cuff, the arc wall and the connection ball joint of cuff. When staff cross installation first prestressing tendons and second prestressing tendons, with the hoop of the bottom of second prestressing tendons and the top of first prestressing tendons be connected the ball and align, then with the arc wall and the connection ball joint of hoop, the staff has saved welded working process, can also be according to 360 degrees rotations of design angle, the release is because of the internal force that construction error caused, and it is more convenient to install.

Description

Two-way cross connection structure of prestressing tendons

Technical Field

The application relates to the field of reinforcing steel bars, in particular to a bidirectional cross connection structure of prestressed tendons.

Background

Prestressing tendons (Prestressing tendons) are usually composed of single or bundled steel wires, strands or bars. The surface of the post-tensioned unbonded prestressed tendon is coated with asphalt, grease or special lubricating and rust-proof materials, wrapped by paper tape or plastic tape or sleeved by a flexible plastic pipe to isolate the tendon from the surrounding concrete, directly placed in a template to pour concrete like common reinforcing steel bars, and tensioned after the concrete reaches the specified strength. The unbonded tendon is commonly used for the components or structures with distributed prestressed tendons, such as large-span bidirectional flat plates, bidirectional ribbed floors and the like. The post-tensioned bonded prestressed tendon is a prestressed tendon which is placed in a reserved hole channel, and is restored to be bonded with surrounding concrete through grouting after being tensioned and anchored. The bonded reinforcing steel is commonly used for a member or a structure with concentrated arrangement of prestressed reinforcing steel and large tension tonnage of each bundle.

When the two prestressed tendons are fixed in a crossed mode, workers generally adopt welding, the two prestressed tendons are installed in a crossed mode according to a design angle, and then the two prestressed tendons are directly welded to be dead by using a welding gun. However, if the worker changes the angle between the two prestressed tendons due to irregular operation or external force factors in the welding process, the worker needs to weld again, and the installation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides a bidirectional cross connection structure of prestressed tendons.

The application provides a two-way cross connection structure of prestressing tendons adopts following technical scheme:

the utility model provides a two-way cross connection structure of prestressing tendons, includes first prestressing tendons and second prestressing tendons, the fixed cuff that is provided with in bottom of second prestressing tendons, the fixed connection ball that is provided with in top of first prestressing tendons, the arc wall has been seted up to the bottom of cuff, the arc wall and the connection ball joint of cuff.

Through adopting above-mentioned technical scheme, when staff cross installation first prestressing tendons and second prestressing tendons, with the hoop of the bottom of second prestressing tendons and the top of first prestressing tendons be connected the ball and align, then with the arc wall and the connection ball joint of hoop, the staff has saved welded working process, can also be according to 360 degrees rotations of design angle, the release is because of the internal force that construction error caused, and it is more convenient to install.

Optionally, the fixed mount pad that is provided with in top of cuff, be provided with clamping device on the mount pad, clamping device includes dwang, two-way screw rod and two sliding blocks, two the length direction sliding connection of sliding block along the mount pad is on the mount pad, two-way screw rod rotates along the length direction of mount pad and sets up in the mount pad, two the bottom of sliding block respectively with two-way screw rod threaded connection, the one end of two-way screw rod outwards extends in the mount pad, two the end that stretches out of two-way screw rod is connected with the dwang sliding tray the sliding tray has been seted up on the lateral wall that the sliding block is close to each other, sliding tray and second prestressing tendons butt.

Through adopting above-mentioned technical scheme, two sliding blocks pass through two-way screw rod and fix the sliding tray on the sliding block with the second prestressing tendons in, improve clamping device's suitability, make clamping device can the centre gripping not unidimensional second prestressing tendons.

Optionally, the fixed block that is provided with of the end that stretches out of two-way screw rod, the fixed slot has been seted up on the dwang, fixed block and fixed slot joint.

Through adopting above-mentioned technical scheme, the dwang can be dismantled with two-way screw rod and be connected, after the staff rotated two-way screw rod, with the fixed block separation of the fixed slot of dwang and two-way screw rod, effectively prevented two-way screw rod from rotating, improved two-way screw rod's stability.

Optionally, a rubber pad is arranged on the side wall of the sliding groove.

Optionally, the dwang has seted up anti-skidding groove along the circumference of the lateral wall of dwang.

Optionally, a plurality of insertion holes are formed in the connecting ball at intervals along the horizontal direction, and the insertion pins are inserted into the insertion holes.

Through adopting above-mentioned technical scheme, with the staff with second prestressing tendons and first prestressing tendons joint back, use the bolt to wear to establish in the jack, effectively prevent to connect the ball and rotate for the cuff, improve the stability of being connected between first prestressing tendons and the second prestressing tendons.

Optionally, the bolt is obliquely and downwardly arranged in the jack along the vertical direction.

Through adopting above-mentioned technical scheme, the bolt downward sloping is worn to establish in the jack, prevents effectively that bolt and connection ball from separating, improves stability.

Optionally, two all fixed connecting blocks that are provided with on the roof of sliding block, one seted up on the connecting block and perforated, another seted up the bolt hole on the connecting block, be provided with the bolt on the sliding block, the bolt passes perforation and with bolt hole threaded connection.

Through adopting above-mentioned technical scheme, after the staff fixes sliding plate and second prestressing tendons, the bolt passes the perforation of one of them connecting block and with the bolt hole threaded connection of another connecting block, effectively prevents to take place relative displacement between two sliding blocks, improvement stability.

In summary, the present application includes at least one of the following beneficial technical effects:

when workers install the first prestressed tendons and the second prestressed tendons in a crossed mode, the hoops at the bottoms of the second prestressed tendons are aligned with the connecting balls at the tops of the first prestressed tendons, then the arc-shaped grooves of the hoops are clamped with the connecting balls, the workers save the welding working process, can rotate 360 degrees according to the design angle, release the internal force caused by construction errors, and are more convenient to install;

the two sliding blocks fix the second prestressed tendons in the sliding grooves on the sliding blocks through the bidirectional screw rods, so that the applicability of the clamping device is improved, and the clamping device can clamp the second prestressed tendons with different sizes;

the dwang can be dismantled with two-way screw rod and be connected, after the staff rotated two-way screw rod, with the fixed slot of dwang and the fixed block separation of two-way screw rod, effectively prevented that two-way screw rod from rotating, improved two-way screw rod's stability.

Drawings

Fig. 1 is a schematic diagram of an explosive structure of embodiment 1 of the present application.

Fig. 2 is a schematic diagram of an explosive structure of embodiment 2 of the present application.

Fig. 3 is a partial sectional view of a mount of embodiment 2 of the present application.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 2.

Description of reference numerals: 1. a first tendon; 2. a second tendon; 3. a ferrule; 4. a connecting ball; 41. a jack; 5. a mounting seat; 6. a clamping device; 61. rotating the rod; 611. an anti-slip groove; 62. a bidirectional screw; 63. a slider; 631. a sliding groove; 64. a rubber pad; 7. a fixed block; 8. a bolt; 9. connecting blocks; 10. and (4) bolts.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses two-way cross connection structure of prestressing tendons.

Example 1:

referring to fig. 1, the bidirectional cross-connecting structure of the prestressed tendons comprises a first prestressed tendon 1 and a second prestressed tendon 2, a hoop 3 is integrally formed at the bottom of the second prestressed tendon 2, a connecting ball 4 is integrally formed at the top of the first prestressed tendon 1, an arc-shaped groove is formed at the bottom of the hoop 3, and the arc-shaped groove of the hoop 3 is connected with the connecting ball 4 in a clamping manner.

Referring to fig. 1, the first tendon 1 and the second tendon 2 both include a tendon casing, and a plurality of tendon bundles are installed in the tendon casing in an array manner.

Referring to fig. 1, the connecting ball 4 is made of a steel ball made of steel, the hoop 3 is made of elastic rubber, and the arc-shaped groove of the hoop 3 is matched with the steel ball in size. After the angle between the first prestressed tendon 1 and the second prestressed tendon 2 is designed, the worker moves and presses the second prestressed tendon 2 towards the first prestressed tendon 1, so that the side wall of the arc-shaped groove of the hoop 3 is tightly abutted to the steel ball.

The implementation principle of the embodiment 1 of the application is as follows: when staff cross installation first prestressing tendons 1 and second prestressing tendons 2, with the hoop 3 of the bottom of second prestressing tendons 2 and the top of first prestressing tendons 1 be connected ball 4 and align, then with the arc wall of hoop 3 with be connected ball 4 joint, the staff has saved welded working process, can also be according to 360 degrees rotations of design angle, the release is because of the internal force that construction error caused, and it is more convenient to install.

Example 2:

referring to fig. 2, embodiment 2 is different from embodiment 1 in that a mounting seat 5 is installed between the second tendon 2 and the ferrule 3, and a clamping device 6 for clamping the second tendon 2 is provided on the mounting seat 5.

Referring to fig. 2, a mounting seat 5 is fixedly mounted at the top of the ferrule 3, the mounting seat 5 is made of alloy material, and the cross section of the mounting seat 5 is rectangular.

Referring to fig. 2 and 3, the clamping device 6 includes a rotating rod 61, a bidirectional screw 62 and two sliding blocks 63, the two sliding blocks 63 are slidably connected to the top wall of the mounting seat 5 along the length direction of the mounting seat 5, the sliding blocks 63 are rectangular blocks made of alloy materials, the bottom of the sliding blocks 63 is integrally formed with a convex block, a groove matched with the convex block is formed in the top wall of the mounting seat 5, the bidirectional screw 62 is rotatably installed on the bottom wall of the groove along the length direction of the mounting seat 5, and the convex blocks of the two sliding blocks 63 are respectively in threaded connection with two ends of the bidirectional screw 62. The sliding groove 631 has been seted up on the lateral wall that two sliding blocks 63 are close to each other, the size adaptation of sliding groove 631 and second prestressing tendons 2, sliding groove 631 can with second prestressing tendons 2 butt, during fixed second prestressing tendons 2, the staff passes through dwang 61 and rotates two-way screw rod 62, sliding

block

63 and 62 threaded connection of two-way screw rod, drive two sliding blocks 63 and remove to the direction that is close to each other, and make sliding groove 631 and second prestressing tendons 2 support tightly, make clamping device 6 can the not unidimensional second prestressing tendons 2 of centre gripping, improve clamping device 6's suitability.

Referring to fig. 3, in order to improve the stability of the coupling of the sliding block 63 and the second tendon 2, a rubber pad 64 is mounted on a side wall of the sliding groove 631, the rubber pad 64 is adhered to the side wall of the sliding groove 631, and the rubber pad 64 increases the frictional force when the side wall of the sliding groove 631 contacts the second tendon 2.

Referring to fig. 2 and 3, the top walls of the two sliding blocks 63 are welded with the connecting blocks 9, the connecting blocks 9 are rectangular blocks made of alloy materials, one connecting block 9 is provided with a through hole, the other connecting block 9 is provided with a bolt hole, the sliding blocks 63 are provided with bolts 10, and the bolts 10 penetrate through the through hole of one connecting block 9 and are in threaded connection with the bolt holes of the other connecting block 9. After the staff fixes sliding plate and second prestressing tendons 2, bolt 10 passes the perforation of one of them connecting block 9 and with the bolt hole threaded connection of another connecting block 9, prevents effectively that relative displacement from taking place between two sliding blocks 63, improves stability.

Referring to fig. 2 and 3, one end of the bidirectional screw 62 extends from the mounting seat 5 in a direction away from the mounting seat 5, the extending end of the bidirectional screw 62 is connected to the rotating rod 61, and the rotating rod 61 is a round rod made of an alloy material. The anti-slip groove 611 has been seted up along the circumference of the lateral wall of dwang 61 to dwang 61, and the frictional force that produces when the staff has increased staff and dwang 61 contact has been slided the groove 631, and it is more convenient that the staff rotates dwang 61.

Referring to fig. 4, the fixing block 7 is integrally formed at the extending end of the bidirectional screw 62, the fixing block 7 is a rectangular block made of alloy, a fixing groove is formed in the side wall of the rotating rod 61 close to the bidirectional screw 62, and the fixing block 7 is clamped with the fixing groove. Dwang 61 can dismantle with two-way screw rod 62 and be connected, after the staff rotated two-way screw rod 62, with the fixed slot of dwang 61 and the fixed block 7 separation of two-way screw rod 62, effectively prevented two-way screw rod 62 from rotating, improved two-way screw rod 62's stability.

Referring to fig. 2, the ferrule 3 is provided with the plug 8, a through hole is formed in a side wall of the ferrule 3, a plurality of insertion holes 41 are horizontally arranged in the connection ball 4 at intervals, and the plug 8 penetrates through the through hole of the ferrule 3 and is inserted into the insertion hole 41 of the connection ball 4. With the staff with second prestressing tendons 2 and the joint back of first prestressing tendons 1, use bolt 8 to pass cuff 3 and wear to establish in jack 41, effectively prevent to connect ball 4 and rotate for cuff 3, improve the stability of being connected between first prestressing tendons 1 and the second prestressing tendons 2.

The through hole and the jack 41 are both obliquely and downwards arranged along the horizontal direction, and the bolt 8 is obliquely and downwards arranged in the jack 41 along the vertical direction. The bolt 8 downward sloping is worn to establish in jack 41, effectively prevents the bolt 8 and connects the separation of ball 4, further improves the stability that bolt 8 and cuff 3 and connection ball 4 are connected.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a two-way cross connection structure of prestressing tendons which characterized in that: including first prestressing tendons (1) and second prestressing tendons (2), the fixed cuff (3) that is provided with in bottom of second prestressing tendons (2), the fixed connection ball (4) that is provided with in top of first prestressing tendons (1), the arc wall has been seted up to the bottom of cuff (3), the arc wall and the connection ball (4) joint of cuff (3).

2. The bidirectional cross-connecting structure of prestressed tendons as claimed in claim 1, wherein: the top of the hoop (3) is fixedly provided with a mounting seat (5), the mounting seat (5) is provided with a clamping device (6), the clamping device (6) comprises a rotating rod (61), a bidirectional screw rod (62) and two sliding blocks (63), the two sliding blocks (63) are connected to the installation seat (5) in a sliding manner along the length direction of the installation seat (5), the two-way screw (62) is rotatably arranged in the mounting seat (5) along the length direction of the mounting seat (5), the bottoms of the two sliding blocks (63) are respectively in threaded connection with the two-way screw (62), one end of the bidirectional screw rod (62) extends outwards from the mounting seat (5), the extension end of the two-way screw rod (62) is connected with the rotating rod (61), two sliding blocks (63) are arranged on the side wall close to each other, a sliding groove (631) is formed in the side wall, and the sliding groove (631) is abutted to the second prestressed rib (2).

3. The bidirectional cross-connecting structure of prestressed tendons as claimed in claim 2, wherein: the fixed block (7) that is provided with of end that stretches out of two-way screw rod (62), the fixed slot has been seted up on dwang (61), fixed block (7) and fixed slot joint.

4. The bidirectional cross-connecting structure of prestressed tendons as claimed in claim 2, wherein: the side wall of the sliding groove (631) is provided with a groove (64).

5. The bidirectional cross-connecting structure of prestressed tendons as claimed in claim 2, wherein: the anti-skidding groove (611) has been seted up along the circumference of the lateral wall of dwang (61) in dwang (61).

6. The bidirectional cross-connecting structure of prestressed tendons as claimed in claim 2, wherein: the ferrule (3) is provided with a bolt (8), the connecting ball (4) is provided with a plurality of jacks (41) at intervals along the horizontal direction, and the bolt (8) penetrates through the jacks (41).

7. The bidirectional cross-connecting structure of prestressed tendons as claimed in claim 6, wherein: the plug pin (8) is obliquely and downwards arranged in the jack (41) along the vertical direction.

8. The bidirectional cross-connecting structure of prestressed tendons as claimed in claim 2, wherein: two all fixed connecting block (9) that are provided with on the roof of sliding block (63), one seted up on connecting block (9) and perforated, another seted up the bolt hole on connecting block (9), be provided with bolt (10) on sliding block (63), the bolt pass perforate and with bolt hole threaded connection.