Positioning framework of vertical prestressed steel beam

Abstract

The utility model provides a positioning framework of a vertical prestressed steel beam, which comprises a plurality of steel beam bodies, base plates and extrusion type anchor heads, and further comprises a positioning piece buckled on the plurality of steel beam bodies and used for positioning the plurality of steel beam bodies, the positioning hoop is arranged at the opening end of the positioning piece and used for fixing the steel beam bodies in the positioning piece, the two ends of the positioning hoop are bent towards the side face of the positioning piece to form a positioning part and bent parts located at the two ends of the positioning part, the bent parts are connected with the side face of the positioning piece, and the positioning part abuts against the steel beam bodies. Machining of the positioning piece and the positioning hoop and installation of the steel bundle body can be conducted on the ground at the same time, hoisting can be conducted after installation is completed, construction can be faster, the human input cost can be reduced, the steel consumption can be greatly reduced in terms of consumable items, cost is reduced, meanwhile, the situation that operators work at high places is reduced, and the construction efficiency is improved. And the safety risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bundle positioning, in particular to a positioning skeleton for vertical prestressed steel bundles. Background Art

[0002] To meet the needs of social development, the number of bridge construction is increasing. In bridge engineering, the role of prestressed steel strands is particularly important. Since the vertical height of the steel strands is high and they have no rigidity, they are easy to deform during construction. The usual practice is to use horizontal cross-shaped steel bars for positioning and reinforcement in the horizontal direction, so that the prestressed steel strands are connected to the horizontal cross-shaped structural steel bars one by one. However, since the prestressed steel strands themselves are easy to deform and difficult to locate at a high height, it is not only inconvenient to carry out construction, but also prolongs the construction time, wastes a lot of manpower, and also poses certain safety hazards. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a positioning frame for vertical prestressed steel bundles, which solves the problem in the prior art that when positioning and fixing the prestressed steel bundles through horizontal cross-shaped structural steel bars, it is not only inconvenient for construction and reduces efficiency, but also poses certain safety hazards.

[0004] According to an embodiment of the utility model, a positioning framework for a vertical prestressed steel strand comprises a plurality of steel strand bodies and pads and extruded anchor heads arranged at the ends of the plurality of steel strand bodies. The positioning framework for the vertical prestressed steel strand further comprises:

[0005] Positioning members that are buckled on a plurality of steel bundle bodies and are used to position the plurality of steel bundle bodies;

[0006] And a positioning hoop is arranged at the open end of the positioning piece and is used to fix a plurality of steel bundle bodies in the positioning piece. Both ends of the positioning hoop are bent toward the side of the positioning piece to form a positioning portion and a bending portion located at both ends of the positioning portion. The bending portion is connected to the side of the positioning piece, and the positioning portion abuts against the steel bundle body.

[0007] Preferably, the positioning member includes a first positioning block and a second positioning block which are distributed in a mirror image, a connecting rod is fixedly provided on the first positioning block, a connecting hole corresponding to the connecting rod is opened on the second positioning block, and the connecting rod is connected in the connecting hole.

[0008] Preferably, the first positioning block and the second positioning block are both provided with limiting seats, and the two bending parts of the positioning hoop are respectively arranged in the two limiting seats.

[0009] Preferably, the first positioning block and the second positioning block are both provided with connecting ribs, a limiting plate is provided between the two connecting ribs, and the limiting plate is provided at the end of the extruded anchor head.

[0010] Preferably, a spiral rib is provided between the two connecting ribs.

[0011] Preferably, a bellows is provided between the first positioning block and the second positioning block, and the bellows is sleeved on the plurality of steel bundle bodies.

[0012] Preferably, a connecting frame is further included, which is arranged on the side of the positioning member and is used to connect two adjacent positioning members.

[0013] Preferably, the connecting frame includes two horizontal frames arranged on the sides of the positioning member, and two staggered diagonal braces are arranged between the two horizontal frames.

[0014] Preferably, positioning grooves are provided in the middle of the two diagonal braces, and the two positioning grooves are interlocked.

[0015] Preferably, a connecting plate perpendicular to the cross frame is provided at the end of the cross frame, and the connecting plate is connected to the side surface of the positioning member.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] By setting the positioning piece, when the steel bundle body is being constructed, the positioning piece is directly buckled on the steel bundle body, so that the steel bundle body is effectively prevented from tilting left and right under the limit of the positioning piece, ensuring its stability, and under the action of the positioning hoop, the opening of the positioning piece can be closed to prevent the steel bundle body from escaping through the opening after installation. With the cooperation of the positioning piece and the positioning hoop, the position of the steel bundle body can be accurately positioned to ensure the positioning accuracy of the steel bundle body and meet the design and specification requirements. In addition, the processing of the positioning piece and the positioning hoop and the installation of the steel bundle body can be carried out on the ground at the same time, and it can be hoisted after the installation is completed. In terms of construction, it can be faster and reduce the cost of manpower input. In terms of consumables, it can greatly reduce the amount of steel used and reduce costs. At the same time, it reduces the situation of workers working at high places and reduces safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0019] Figure 2 This is a schematic diagram of two positioning members connected by a connecting frame in an embodiment of the utility model.

[0020] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of area B in the middle.

[0021] Figure 4 It is a schematic diagram of the partial structure of the second positioning block in the embodiment of the utility model.

[0022] Figure 5 It is a structural schematic diagram of the connecting frame in the embodiment of the utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the diagonal brace after being truncated in an embodiment of the utility model, mainly showing the positioning groove.

[0024] In the above drawings: 1. Steel bundle body; 11. Connecting ribs; 2. Positioning piece; 21. First positioning block; 22. Second positioning block; 23. Connecting rod; 24. Connecting hole; 25. Limiting seat; 3. Bellows; 4. Positioning hoop; 41. Bending portion; 42. Positioning portion; 5. Connecting frame; 51. Cross frame; 52. Diagonal brace; 53. Positioning groove; 54. Connecting plate; 6. Extruded anchor head; 7. Limiting plate; 8. Spiral ribs; 9. Pad. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] like Figures 1 to 3 As shown, the embodiment of the utility model provides a positioning framework for a vertical prestressed steel bundle, including a plurality of steel bundle bodies 1 and pads 9 and extruded anchor heads 6 arranged at the ends of the plurality of steel bundle bodies 1. The positioning framework for the vertical prestressed steel bundle also includes:

[0027] Positioning members 2 that are buckled on the plurality of steel bundle bodies 1 and are used to position the plurality of steel bundle bodies 1;

[0028] And a positioning hoop 4 is provided at the open end of the positioning member 2, which is used to fix a plurality of steel bundle bodies 1 in the positioning member 2. Both ends of the positioning hoop 4 are bent toward the side of the positioning member 2 to form a positioning portion 42 and a bending portion 41 located at both ends of the positioning portion 42. The bending portion 41 is connected to the side of the positioning member 2, and the positioning portion 42 abuts against the steel bundle body 1.

[0029] In the embodiment of the utility model, when processing the steel bundle body 1, it is necessary to ensure that the unloading site of the steel bundle body 1 is flat, and wooden boards or colored strips are laid on the ground to prevent the steel bundle body 1 from being worn. After the unloading of the steel bundle body 1 is completed, it is numbered and labeled according to the length, and properly stored to prevent rust; and an extruded anchor head 6 is installed at one end (anchoring end) of the steel bundle body 1, and the extruded anchor head 6 is squeezed by special equipment to make the extruded anchor head 6 produce plastic deformation and then hold the steel bundle tightly, and then the extruded steel bundle body 1 is inserted into the holes of the pad 9 in turn. After each bundle of steel bundle bodies 1 passes through the pad 9, the steel bundle bodies 1 are tied into a bundle every 1.0 to 1.5 m with iron wire according to the corresponding design number. Secondly, lay the positioning member 2 flat on the ground, and install the processed steel bundle body 1 in the positioning member 2, and then bend the positioning hoop 4, which was originally in a straight strip, according to the width of the positioning member 2 to form a positioning portion 42 that abuts against the opening of the positioning member 2 and a bending portion 41 that abuts against the side of the positioning member 2, and weld the bending portion 41 to fix it on the positioning member 2. With the cooperation of the positioning member 2 and the positioning hoop 4, the steel bundle body 1 is effectively prevented from tilting to the left or right or detaching from the positioning member 2, ensuring its stability, accurately positioning the position of the steel bundle body 1, ensuring the positioning accuracy of the steel bundle body 1, and meeting the design and specification requirements. In addition, the processing of the positioning member 2 and the positioning hoop 4 and the installation of the steel bundle body 1 can be carried out on the ground at the same time, and it can be hoisted after the installation is completed. In terms of construction, it can be faster and reduce the cost of manpower investment. In terms of consumables, it can greatly reduce the amount of steel used and reduce costs. At the same time, it reduces the situation of workers working at high places and reduces safety risks.

[0030] like Figure 4 As shown, the positioning member 2 includes a first positioning block 21 and a second positioning block 22 that are distributed in a mirror image. A connecting rod 23 is fixed on the first positioning block 21 , and a connecting hole 24 corresponding to the connecting rod 23 is opened on the second positioning block 22 . The connecting rod 23 is connected to the connecting hole 24 .

[0031] In the embodiment of the utility model, the positioning member 2 is composed of a first positioning block 21 and a second positioning block 22 which are distributed in a mirror image, and the first positioning block 21 and the second positioning block 22 have the same structure, both of which are block structures with an L-shaped structure. According to different construction requirements, when positioning and installing the steel bundle body 1 of different widths, the distance between the first positioning block 21 and the second positioning block 22 can be adjusted left and right, so as to control the width of the groove body formed between the first positioning block 21 and the second positioning block 22. During the adjustment, through the cooperation of the connecting rod 23 and the connecting hole 24, the first positioning block 21 and the second positioning block 22 can be limited during the mutual adjustment to avoid misalignment. After adjusting to the specified width, the connecting rod 23 and the connecting hole 24 can be directly welded to the matching part. This not only facilitates the processing of the positioning member 2, but also ensures the versatility of the positioning member 2 and avoids material waste.

[0032] Moreover, if Figure 4 As shown, the first positioning block 21 and the second positioning block 22 are both provided with a limiting seat 25, and the two bent portions 41 of the positioning hoop 4 are respectively arranged in the two limiting seats 25. Under the support of the limiting seats 25, according to the construction requirements, the steel bars can be bent to be processed into a U-shaped structure of a specified width, that is, the positioning hoop 4, and then the two bent portions 41 of the positioning hoop 4 are respectively passed through the limiting seats 25 on the sides of the first positioning block 21 and the second positioning block 22, and the adjusted first positioning block 21 and the second positioning block 22 are limited and fixed to avoid displacement when welding the first positioning block 21 and the second positioning block 22, thereby ensuring the accuracy of processing. Finally, the two bent portions 41 in the positioning hoop 4 are respectively welded to the first positioning block 21 and the second positioning block 22.

[0033] like Figure 3 As shown, both the first positioning block 21 and the second positioning block 22 are provided with connecting ribs 11 , and a limiting plate 7 is provided between the two connecting ribs 11 . The limiting plate 7 is provided at the end of the extruded anchor head 6 .

[0034] In the embodiment of the utility model, the end of the extruded anchor head 6 is connected to the positioning member 2 by the cooperation of the connecting rib 11 and the limiting plate 7, so as to ensure the continuity of the whole structure. When the positioning member 2 is hoisted, the steel bundle body 1 will not be separated from the positioning member 2, so as to prevent the steel bundle body 1 from sliding down from the positioning member 2 during the hoisting process, thereby ensuring a certain structural strength. Figure 3 As shown, a spiral rib 8 is provided between the two connecting ribs 11. By winding the originally straight spiral rib 8 between the two connecting ribs 11 in a spiral manner, the connection area of ​​the two connecting ribs 11 is effectively increased, ensuring a certain structural strength. Figure 1 and Figure 2As shown, a bellows 3 is provided between the first positioning block 21 and the second positioning block 22, and the bellows 3 is sleeved on a plurality of steel bundle bodies 1. When the processed steel bundle body 1 is installed between the first positioning block 21 and the second positioning block 22, the bellows 3 is first sleeved on the steel bundle body 1, and then the bellows 3 with the steel bundle body 1 is installed between the first positioning block 21 and the second positioning block 22, so as to avoid unnecessary wear of the steel bundle body 1 and protect the steel bundle body 1.

[0035] like Figure 2 As shown, a connecting frame 5 is also included. The connecting frame 5 is arranged on the side of the positioning member 2 and is used to connect two adjacent positioning members 2.

[0036] In the embodiment of the utility model, when one positioning frame is assembled, with the cooperation of the connecting frame 5, multiple positioning frames that have been assembled are arranged in a row, and each connecting frame 5 is placed between two adjacent positioning frames and welded to connect each positioning frame into a whole. During the subsequent hoisting, multiple positioning frames can be installed simultaneously to the construction area through one hoisting, which is convenient and quick. Figure 5 and Figure 6 As shown, the connecting frame 5 includes two horizontal frames 51 arranged on the side of the positioning member 2, and two staggered diagonal braces 52 are arranged between the two horizontal frames 51. The two horizontal frames 51 are welded in parallel between two adjacent positioning members 2, and under the action of the diagonal braces 52, the structural strength of the horizontal frames 51 is improved to avoid deformation and breakage during hoisting to cause safety accidents. In addition, as shown in FIG. Figure 6 As shown, the middle of the two diagonal braces 52 is provided with a positioning groove 53, and the two positioning grooves 53 are interlocked. Before installing the cross frame 51, the two diagonal braces 52 can be assembled first, and the positioning grooves 53 of the two diagonal braces 52 are interlocked to limit the structure of the diagonal braces 52. Then, the two cross frames 51 are respectively installed on both sides of the two diagonal braces 52 and welded, which ensures that the two cross frames 51 are always parallel, and indirectly ensures the verticality of the positioning member 2 after being connected by the connecting frame 5. Furthermore, as Figure 5 and Figure 6 As shown, the end of the cross frame 51 is provided with a connecting plate 54 perpendicular thereto, and the connecting plate 54 is connected to the side of the positioning member 2. By providing the connecting plate 54 on the cross frame 51, the end of the cross frame 51 is made into a T-shaped structure, which increases the contact area between the end of the cross frame 51 and the positioning member 2, facilitates welding and also ensures the strength of the welding.

[0037] The implementation principle of the embodiment of this application is:

[0038] First, a positioning skeleton is processed, and an extruded anchor head 6 is installed at one end (anchor end) of the steel bundle body 1. The extruded anchor head 6 is squeezed by a special machine to make it plastically deformed and then hold the steel bundle tightly. Then, the extruded steel bundle body 1 is inserted into the holes of the pad 9 in sequence. After each bundle of steel bundle bodies 1 passes through the pad 9, the steel bundle bodies 1 are tied into a bundle with iron wire according to the corresponding design number of roots every 1.0 to 1.5 m, and the corrugated pipe 3 is set in this bundle of steel bundle bodies 1; the positioning member 2 is laid flat on the ground, and according to the construction requirements, the distance between the first positioning block 21 and the second positioning block 22 is adjusted left and right to control the width of the groove formed between the first positioning block 21 and the second positioning block 22, and the two bent portions 41 of the positioning hoop 4 are respectively inserted into the first positioning block 21 and the second positioning block 22. The adjusted first positioning block 21 and the second positioning block 22 are limited and fixed on the limiting seat 25 on the side of the positioning block 22, and the matching parts of the connecting rod 23 and the connecting hole 24 and the bending part 41 and the limiting seat 25 are directly welded, and then the steel bundle body 1 with the corrugated tube 3 is placed in the positioning piece 2 to complete the processing and assembly of a positioning skeleton. After the processing of multiple positioning skeletons is completed, the connecting frame 5 is assembled, and the positioning grooves 53 of the two diagonal braces 52 are interlocked to limit the structure of the diagonal brace 52, and then the two cross frames 51 are respectively installed on both sides of the two diagonal braces 52 and welded, and then the connecting plate 54 at the end of the cross frame 51 is welded to the corresponding positioning piece 2 to form a positioning skeleton system, and finally it is synchronously hoisted to the designated construction area, and the anchor end is driven into the ground.

[0039] In summary, the use of the present application not only ensures the accuracy of positioning the steel bundle body 1, but also can be faster in construction and reduce manpower investment costs. It can also significantly reduce the amount of steel used in consumables and reduce costs. At the same time, it reduces the situation where workers work at heights and reduces safety risks.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A positioning framework for vertical prestressed steel strands, comprising a plurality of steel strand bodies (1) and pads (9) and extruded anchor heads (6) arranged at the ends of the plurality of steel strand bodies (1), characterized in that: The positioning framework of the vertical prestressed steel tendons also includes: A positioning member (2) which is buckled with the plurality of the steel bundle bodies (1) and is used to position the plurality of the steel bundle bodies (1); and a positioning hoop (4) provided at the open end of the positioning member (2) for fixing a plurality of the steel bundle bodies (1) in the positioning member (2); both ends of the positioning hoop (4) are bent toward the side of the positioning member (2) to form a positioning portion (42) and a bending portion (41) located at both ends of the positioning portion (42); the bending portion (41) is connected to the side of the positioning member (2); and the positioning portion (42) abuts against the steel bundle body (1).

2. A positioning framework for vertical prestressed steel strands according to claim 1, characterized in that: The positioning member (2) comprises a first positioning block (21) and a second positioning block (22) which are arranged in a mirror image, a connecting rod (23) being fixedly provided on the first positioning block (21), a connecting hole (24) corresponding to the connecting rod (23) being provided on the second positioning block (22), and the connecting rod (23) being connected in the connecting hole (24).

3. A positioning framework for vertical prestressed steel strands according to claim 2, characterized in that: The first positioning block (21) and the second positioning block (22) are both provided with a limiting seat (25), and the two bending portions (41) of the positioning hoop (4) are respectively arranged in the two limiting seats (25).

4. A positioning framework for vertical prestressed steel strands according to claim 2 or 3, characterized in that: The first positioning block (21) and the second positioning block (22) are both provided with connecting ribs (11), a limiting plate (7) is provided between the two connecting ribs (11), and the limiting plate (7) is provided at the end of the extruded anchor head (6).

5. A positioning framework for vertical prestressed steel strands according to claim 4, characterized in that: A spiral rib (8) is provided between the two connecting ribs (11).

6. A positioning framework for vertical prestressed steel strands according to claim 4, characterized in that: A bellows (3) is provided between the first positioning block (21) and the second positioning block (22), and the bellows (3) is sleeved on the plurality of steel bundle bodies (1).

7. A positioning framework for vertical prestressed steel strands according to claim 1, characterized in that: It also comprises a connecting frame (5), which is arranged on the side of the positioning member (2) and is used to connect two adjacent positioning members (2).

8. A positioning framework for vertical prestressed steel strands according to claim 7, characterized in that: The connecting frame (5) comprises two horizontal frames (51) arranged on the side of the positioning member (2), and two staggered diagonal braces (52) are arranged between the two horizontal frames (51).

9. A positioning framework for vertical prestressed steel strands according to claim 8, characterized in that: A positioning groove (53) is provided in the middle of the two diagonal supports (52), and the two positioning grooves (53) are buckled with each other.

10. A positioning framework for vertical prestressed steel strands according to claim 8 or 9, characterized in that: The end of the cross frame (51) is provided with a connecting plate (54) perpendicular thereto, and the connecting plate (54) is connected to the side surface of the positioning member (2).

Images