In-beam steering gear for pre-tensioned broken line prestressed wide-web T-shaped beam

Abstract

The utility model provides an in-beam steering gear for a pre-tensioned broken line prestress wide-web T-shaped beam, which comprises a plurality of positioning foundation supports, a prestress rib limiting system and rigidity reinforcing connecting rods, the two ends of the prestress rib limiting system are fixedly connected with the positioning foundation supports, the rigidity reinforcing connecting rods are arranged below the prestress rib limiting system in the same direction, and the rigidity reinforcing connecting rods are fixedly connected with the positioning foundation supports. The two ends of the rigidity reinforcing connecting rod are fixedly connected with the positioning foundation support. The steering gear has the advantages that the reinforcing connecting rod is arranged, and the gasket assembly is arranged on the main connecting rod, so that the overall structural stress performance of the steering gear is remarkably enhanced, and the steering gear can bear a large amount of load force generated when a steel strand steers in the construction process; therefore, the stability of the whole construction process and the integrity of the structure are ensured. In addition, construction steps can be simplified, construction time is shortened, construction difficulty is lowered, and constructors can complete operation more efficiently.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering devices, in particular to an internal deflector for pre-tensioned folding-line prestressed wide-web T-beams. Background Art

[0002] In the vast field of municipal road construction, the quality of slab-beam construction is a key factor in ensuring the long-term stability of road operations. During the construction of these projects, steel strand tensioning plays a crucial role. This not only provides the necessary prestressing for concrete structures, enhancing their load-bearing capacity, but also effectively improves their crack resistance and durability, thereby ensuring the safety and reliability of road construction.

[0003] After years of development and practice, the construction technology of prestressed concrete beams using the pretensioning method has reached a considerable level of maturity. This method is particularly suitable for straight-line tensioning of hollow-core slabs and broken-line tensioning of thin-web I-beams. In these cases, pretensioning ensures uniform distribution of the steel strands during tensioning, creating a stable prestress, thereby improving the overall performance of the structure.

[0004] However, when the construction turns to wide-web T-beams, the application of the pre-tensioning method faces new challenges. Due to its unique structural characteristics, wide-web T-beams place higher demands on the arrangement of steel strands and the tensioning process. The cross-sectional design of this type of beam is relatively complex, and the direction and distribution of the steel strands require more precise control to ensure that uniform and effective prestressing can be formed during the tensioning process. In addition, the construction of wide-web T-beams also needs to take into account the stability of the beam body and the safety during the construction process. These are important factors that must be considered during design and construction. If, during municipal road construction, the steering device in the beam cannot withstand the force generated by multiple steel strands during the steering process, it may lead to quality problems such as reduced structural stability, which may cause structural instability, especially the uneven tensioning of the steel strands, which affects the prestressing effect of the concrete beam, thereby reducing the construction quality. Utility Model Content

[0005] In order to solve the problem of destabilization of the diverter structure during the tensioning of the steel strands, which affects the prestressing effect of the concrete beam;

[0006] The utility model provides a deflector for prestressed wide-web T-beams with pre-tensioned folding lines, comprising a plurality of positioning base supports, a prestressed tendon limiting system and a stiffness reinforcing connecting rod, wherein both ends of the prestressed tendon limiting system are fixedly connected to the positioning base supports, the stiffness reinforcing connecting rod is arranged in the same direction below the prestressed tendon limiting system and is fixedly connected to the prestressed tendon limiting system, and both ends of the stiffness reinforcing connecting rod are fixedly connected to the positioning base supports.

[0007] As a preferred solution, the positioning base bracket is composed of a conical pad and square steel; the conical pad is fixedly arranged under the square steel.

[0008] As a preferred solution, the prestressed tendon limiting system includes multiple pulley devices, main connecting rods, multiple limiting steel plates and multiple steel washers; two wire holes are set on the top of the square steel for the stiffness reinforcement connecting rod and the main connecting rod to pass through, and the two ends of the main connecting rod are fixedly connected to the square steel, and the pulley devices, limiting steel plates and steel washers are alternately arranged on the outside of the main connecting rod.

[0009] As a preferred solution, through holes are respectively provided on the upper and lower parts of the limiting steel plate, the main connecting rod passes through the upper through hole, and the stiffness reinforcing connecting rod passes through the lower through hole.

[0010] As a preferred solution, a through-hole is provided in the center of the conical pad for the insertion of bolts; a hole is provided at the bottom of the square steel, and bolts are inserted together with the conical pad to fix it to the prefabricated bottom formwork of the plate beam.

[0011] As a preferred solution, the pulley devices and steel washers are alternately sleeved on the outside of the main connecting rod, and the limiting steel plate is arranged between adjacent pulley devices and steel washers.

[0012] As a preferred solution, outermost limiting steel plates are provided at both ends of the stiffness-reinforcing connecting rod and the main connecting rod, and reinforcing nuts are provided to tighten the outermost limiting steel plates.

[0013] The beneficial effects of the utility model are:

[0014] The steering gear of this utility model significantly enhances the overall structural load-bearing performance of the device by providing a reinforcing connecting rod and a spacer assembly on the main connecting rod, enabling it to withstand the large loads generated by the steel strands during construction, thereby ensuring the stability and structural integrity of the entire construction process. In addition, this utility model can simplify construction steps, reduce construction time, and reduce construction difficulty, allowing construction workers to complete the work more efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 This is a schematic diagram of the explosion structure of the utility model.

[0018] The reference numerals in the accompanying drawings are:

[0019] 1 is the positioning base bracket, 11 is the conical pad, 12 is the square steel, 111 is the through-wire hole, 121 and 122 are the square steel wire holes; 2 is the prestressed tendon limiting system, 21 is the pulley, 22 is the main connecting rod, 23 is the limiting steel plate, 24 is the steel washer, and 231 is the circular hole of the limiting plate; 3 is the rigidity reinforcing connecting rod, 32 is the bolt; 4 is the reinforcement nut. DETAILED DESCRIPTION

[0020] To illustrate the features of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example:

[0022] See also Figures 1 to 2 , an embodiment of the utility model provides. A deflector for pre-tensioned folding line prestressed wide-web T-beam, comprising a plurality of positioning base supports 1, a prestressed tendon limiting system 2 and a stiffness reinforcing link 3, wherein both ends of the prestressed tendon limiting system 2 are fixedly connected to the positioning base supports 1, the stiffness reinforcing link 3 is arranged in the same direction below the prestressed tendon limiting system 2 and is fixedly connected to the prestressed tendon limiting system 2, and both ends of the stiffness reinforcing link 3 are fixedly connected to the positioning base supports 1.

[0023] Preferably, the positioning base bracket 1 in this embodiment is composed of a conical pad 11 and a square steel 12 ; the conical pad 11 is fixedly arranged below the square steel 12 .

[0024] Preferably, the prestressed tendon limiting system 2 in this embodiment includes a plurality of pulley devices 21, a main connecting rod 22, a plurality of limiting steel plates 23, and a plurality of steel washers 24; two threaded holes 122 are provided on the top of the square steel 12 for the rigidity reinforcing connecting rod 3 and the main connecting rod 22 to pass through, the two ends of the main connecting rod 22 are fixedly connected to the square steel 12, and the pulley devices 21, limiting steel plates 23, and steel washers 24 are alternately sleeved on the outside of the main connecting rod 22. By providing a reinforcing connecting rod and arranging a washer assembly on the main connecting rod, this embodiment significantly enhances the overall structural stress-bearing performance of the device, enabling it to withstand the large amount of load generated when the steel strands are turned during construction, thereby ensuring the stability of the entire construction process and the integrity of the structure.

[0025] Preferably, in this embodiment, the limiting steel plate 23 is provided with through holes 231 at the upper and lower parts thereof, the main connecting rod 22 passes through the upper through hole 231 , and the stiffness reinforcing connecting rod 3 passes through the lower through hole 231 .

[0026] Preferably, in this embodiment, a through hole 111 is provided at the center of the conical pad 11 for the bolt 32 to pass through; a hole 121 is provided at the bottom of the square steel 12, and the bolt 32 is passed through together with the conical pad 11 to fix it to the prefabricated bottom mold of the plate beam.

[0027] Preferably, in this embodiment, the pulley devices 21 and the steel washers 24 are alternately sleeved on the outside of the main connecting rod 22 , and the limiting steel plate 23 is arranged between adjacent pulley devices 21 and steel washers 24 .

[0028] Preferably, in this embodiment, outermost limit steel plates 23 are provided at both ends of the stiffness-reinforcing connecting rod 3 and the main connecting rod 22, and reinforcement nuts 4 are provided to compress the outermost limit steel plates 23. This embodiment has a simple structure and is easy to install. It can also simplify construction steps, reduce construction time, and reduce construction difficulty, allowing construction workers to complete the work more efficiently.

[0029] The above embodiments and accompanying drawings are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. The present invention has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions, or substitutions made by those skilled in the art within the spirit of the present invention do not depart from the spirit of the present invention and are intended to fall within the scope of the claims of the present invention. Other related technical structures not fully disclosed in this utility model are prior art in the art.

Claims

1. A deflector for pre-tensioned fold line prestressed wide web T-beam, characterized in that: The invention comprises a plurality of positioning base supports (1), a prestressed tendon limiting system (2) and a stiffness reinforcing connecting rod (3), wherein both ends of the prestressed tendon limiting system (2) are fixedly connected to the positioning base supports (1), and the stiffness reinforcing connecting rod (3) is arranged in the same direction below the prestressed tendon limiting system (2) and is fixedly connected to the prestressed tendon limiting system (2), and both ends of the stiffness reinforcing connecting rod (3) are fixedly connected to the positioning base supports (1).

2. The inner deflector for pre-tensioned fold line prestressed wide web T-beam according to claim 1, characterized in that: The positioning base bracket (1) is composed of a conical pad (11) and a square steel (12); the conical pad (11) is fixedly arranged below the square steel (12).

3. The inner deflector for pre-tensioned fold line prestressed wide web T-beam according to claim 2, characterized in that: The prestressed tendon limiting system (2) comprises a plurality of pulley devices (21), a main connecting rod (22), a plurality of limiting steel plates (23) and a plurality of steel washers (24); two thread holes (122) are provided on the top of the square steel (12) for the stiffness reinforcement connecting rod (3) and the main connecting rod (22) to pass through, and the two ends of the main connecting rod (22) are fixedly connected to the square steel (12), and the pulley devices (21), the limiting steel plates (23) and the steel washers (24) are alternately sleeved on the outside of the main connecting rod (22).

4. The inner deflector for pre-tensioned fold line prestressed wide web T-beam according to claim 3, characterized in that: The limiting steel plate (23) is provided with through holes (231) at the top and bottom, respectively; the main connecting rod (22) passes through the upper through hole (231); and the rigidity reinforcing connecting rod (3) passes through the lower through hole (231).

5. The inner deflector for pre-tensioned fold line prestressed wide web T-beam according to claim 2, characterized in that: The center of the conical pad (11) is provided with a through-hole (111) for the bolt (32) to penetrate; the bottom of the square steel (12) is provided with a through-hole (121) for the bolt (32) to penetrate together with the conical pad (11) so as to be fixed to the prefabricated bottom form of the plate beam.

6. The inner deflector for pre-tensioned fold line prestressed wide web T-beam according to claim 3, characterized in that: The pulley devices (21) and the steel washers (24) are alternately sleeved on the outside of the main connecting rod (22), and the limiting steel plate (23) is arranged between adjacent pulley devices (21) and steel washers (24).

7. The inner deflector for pre-tensioned fold line prestressed wide web T-beam according to claim 3, characterized in that: The outermost limiting steel plates (23) are provided at both ends of the rigidity reinforcing connecting rod (3) and the main connecting rod (22), and reinforcing nuts (4) are provided to press the outermost limiting steel plates (23).

Images