Connecting joint of prestressed beam and constructional column

Abstract

The utility model discloses a connecting node of a prestressed beam and a constructional column in the field of constructional engineering, which comprises the prestressed beam and a U-shaped steel plate, the bottom of the prestressed beam is wrapped by the U-shaped steel plate, and a plurality of steel bars used for being bound with longitudinal bars of the constructional column are arranged at the bottom of the U-shaped steel plate. The constructional column solves the problem that according to an existing constructional column, steel bars are planted at the bottom of a prestressed beam to achieve connection, and the prestressed beam is prone to being damaged. The U-shaped steel plate wraps the bottom of the prestressed beam, and the steel bars at the bottom of the U-shaped steel plate are connected with longitudinal bars of the constructional column in a binding mode. The prestressed beam is not required to be drilled or a chemical anchoring agent is not required to be used, steel bar planting at the bottom of the prestressed beam is avoided, the risk that the prestressed steel bar is damaged is reduced, and the connection between the prestressed beam and the constructional column is realized under the condition that the prestressed steel bar is not damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, and concretely relates to a prestressed beam and construction column connecting joint. BACKGROUND

[0002] In the field of prefabricated buildings, the use of prefabricated prestressed beams is very widespread. By applying prestress to the steel bars during the manufacturing process, the prestressed beam forms an internal compression state before the concrete solidifies, which not only improves the bending resistance of the beam, but also increases its durability and crack resistance. Therefore, prestressed beams are suitable for building structural systems that bear large loads, such as bridges, high-rise buildings, and large industrial facilities, etc.

[0003] The connection of prestressed beams and construction columns is the key to achieving structural integrity and stability. In traditional construction methods, the construction column is usually connected by planting steel bars at the bottom of the prestressed beam. However, the use of chemical anchoring agents or mechanical anchoring in the process of planting steel bars may cause damage to the prestressed beam, affecting the prestress effect of the beam, thereby reducing the safety and reliability of the structure.

[0004] The above defects need to be solved urgently. INVENTION CONTENTS

[0005] In order to solve the problem that the existing construction column is connected by planting steel bars at the bottom of the prestressed beam, which easily damages the prestressed beam, the utility model provides a prestressed beam and construction column connecting joint.

[0006] The technical scheme of the utility model is as follows:

[0007] A prestressed beam and construction column connecting joint, comprising a prestressed beam and a U-shaped steel plate, the U-shaped steel plate wraps around the bottom of the prestressed beam, and the bottom of the U-shaped steel plate is provided with a plurality of steel bars for binding with the longitudinal reinforcement of the construction column.

[0008] According to the utility model of the above-mentioned scheme, in the length direction of the U-shaped steel plate, the adjacent two steel bars are staggered.

[0009] According to the utility model of the above-mentioned scheme, the steel bar is L-shaped, the steel bar comprises a first connecting section and a second connecting section, the first connecting section and the second connecting section are perpendicular, the first connecting section is connected with the U-shaped steel plate, and the second connecting section is bound with the longitudinal reinforcement of the construction column.

[0010] According to the utility model of the above-mentioned scheme, the width of the first connecting section is 50mm-70mm.

[0011] According to the utility model, the two sides of the U-shaped steel plate are symmetrically provided with a plurality of anchor bolts, one end of the anchor bolts passes through the anchor bolts and is connected with the prestressed beam.

[0012] According to the utility model, the anchor bolts on each side of the U-shaped steel plate are arranged side by side, and the distance between the central axis of each anchor bolt and the top end of the U-shaped steel plate is 40mm-60mm.

[0013] According to the utility model, the two sides of the U-shaped steel plate are symmetrically provided with a plurality of anchor bolts, one end of the anchor bolts passes through the anchor bolts and is connected with the prestressed beam.

[0014] According to the utility model, the diameter of the anchor bolt is 12mm-16mm.

[0015] According to the utility model, the height of the U-shaped steel plate is 190mm-210mm.

[0016] According to the utility model, the thickness of the U-shaped steel plate is 5mm-7mm.

[0017] According to the utility model, its beneficial effects are as follows:

[0018] In the connecting joint of the prestressed beam and the structural column, the bottom of the prestressed beam is wrapped by the U-shaped steel plate, the steel bars at the bottom of the U-shaped steel plate are bound and connected with the longitudinal bars of the structural column, no hole needs to be drilled on the prestressed beam or chemical anchoring agent needs to be used, the planting of the steel bars at the bottom of the prestressed beam is avoided, the risk of damage of the prestressed steel bars is reduced, and the connection between the prestressed beam and the structural column is realized without damaging the prestressed steel bars. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2 It is one of the partial structural schematic views of the utility model;

[0022] Figure 3 It is the second of the partial structural schematic views of the utility model.

[0023] In the figure, 1, prestressed beam; 2, U-shaped steel plate; 3, steel bar; 31, first connecting section; 32, second connecting section; 4, longitudinal reinforcement; 5, anchor bolt. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0025] As Figures 1 to 3 shown, the utility model provides a prestressed beam and construction column connecting joint, including prestressed beam 1 and U-shaped steel plate 2, U-shaped steel plate 2 is wrapped around the bottom of prestressed beam 1, and the bottom of U-shaped steel plate 2 is provided with a plurality of steel bars 3 for binding with the longitudinal reinforcement 4 of the construction column. By wrapping the bottom of the prestressed beam 1 with the U-shaped steel plate 2, the steel bars 3 at the bottom of the U-shaped steel plate 2 are bound and connected with the longitudinal reinforcement 4 of the construction column, without the need to drill holes on the prestressed beam 1 or use chemical anchoring agents, avoiding the need to install steel bars at the bottom of the prestressed beam 1, reducing the risk of damage to the prestressed steel bars 3, and achieving the connection between the prestressed beam 1 and the construction column without damaging the prestressed steel bars 3. In the actual construction process, the steel bars 3 and the longitudinal reinforcement 4 are bound and operated, which can realize the close connection between the steel bars 3 at the bottom of the U-shaped steel plate 2 and the longitudinal reinforcement 4 of the construction column, and the whole process does not need complex construction equipment and complicated procedures, greatly improving the construction efficiency. At the same time, since no destructive treatment of any form is needed for the prestressed beam 1, the integrity of the prestressed beam 1 and the integrity of the prestressed steel bars 3 are effectively ensured, and the safety and durability of the structure are ensured.

[0026] As Figure 1 , Figure 3 shown, in the embodiment, the adjacent two steel bars 3 are staggered in the length direction of the U-shaped steel plate 2, avoiding stress concentration. The staggered arrangement of the adjacent two steel bars 3 can ensure that when the U-shaped steel plate 2 bears external force, the stress will not be concentrated on a few specific points or line segments, but can be more evenly dispersed into the whole steel plate and steel bar 3 network, improving the overall rigidity and carrying capacity of the structure, prolonging the service life and reducing the risk of fatigue fracture caused by long-term stress concentration. In addition, the staggered arrangement of the steel bars 3 also enhances the connection stability between the U-shaped steel plate 2 and the steel bars 3 and the synergistic effect of the overall structure, so that the whole system shows higher stability and reliability when bearing complex load.

[0027] As Figure 1 , Figure 2As shown, in this embodiment, the reinforcing bar 3 is L-shaped and includes a first connecting section 31 and a second connecting section 32. The first connecting section 31 and the second connecting section 32 are arranged perpendicularly, and the first connecting section 31 is connected to the U-shaped steel plate 2. Specifically, the first connecting section 31 of the reinforcing bar 3 can be designed to be welded to the U-shaped steel plate 2 to increase the welding area, ensuring a tight connection and stable force transmission between the first connecting section 31 and the U-shaped steel plate 2. This not only improves the overall structural rigidity but also allows the U-shaped steel plate 2 to more effectively distribute and bear loads from all directions. In addition, the second connecting section 32 is tied to the longitudinal reinforcement 4 of the structural column. During the tying process, special binding wire or reinforcing bar 3 connectors are used to tightly tie the second connecting section 32 to the longitudinal reinforcement 4 of the structural column, forming a strong node. This not only simplifies the construction process and improves construction efficiency but also ensures the connection strength at the node, enabling the structure to maintain overall stability when subjected to complex loads. Meanwhile, since the lengths of the second connecting segments 32 of two adjacent steel bars 3 are not equal, the lengths of the longitudinal bars 4 of the structural column corresponding to the second connecting segments 32 are also not equal, which can further prevent stress concentration, making construction simpler and more convenient. After the component is produced, the steel bars 3 can be tied directly on site, which speeds up the construction progress.

[0028] like Figure 2 As shown, in this embodiment, the width W of the first connecting segment 31 is 50mm to 70mm. The width W of the first connecting segment 31 can be designed to be any value in the range of 50mm, 52mm, 54mm, 56mm, 58mm, 60mm, 62mm, 64mm, 66mm, 68mm, 70mm, etc. In actual design, the width W of the first connecting segment 31 can be designed according to actual needs.

[0029] like Figure 2 As shown, in this embodiment, the height H1 of the U-shaped steel plate 2 is 190mm to 210mm. The height H1 can be designed to be any value within the range of 190mm, 192mm, 194mm, 196mm, 198mm, 200mm, 202mm, 204mm, 206mm, 208mm, and 210mm. In actual design, the height H1 of the U-shaped steel plate 2 can be designed according to actual needs. Furthermore, the thickness D of the U-shaped steel plate 2 is 5mm to 7mm. The thickness D can be designed to be any value within the range of 5mm, 5.2mm, 5.4mm, 5.6mm, 5.8mm, 6mm, 6.2mm, 6.4mm, 6.8mm, and 7mm. In actual design, the thickness D of the U-shaped steel plate 2 can be designed according to actual needs.

[0030] like Figures 1 to 3As shown in this embodiment, several anchor bolts 5 are symmetrically arranged on both sides of the U-shaped steel plate 2. One end of the anchor bolt 5 passes through the anchor bolt 5 and connects to the prestressed beam 1. The anchor bolt 5 and the prestressed beam 1 are connected by high-strength concrete grouting, threaded locking, or welding, ensuring that the connection between the two is both firm and reliable. This not only effectively transfers the load borne by the U-shaped steel plate 2 to the prestressed beam 1, but also enhances the overall integrity and stability of the entire structure. Of course, anchor bolts 5 can also be pre-embedded on both sides of the non-prestressed steel bar 3 position in the middle of the prestressed beam 1 as connecting parts between the U-shaped steel plate 2 and the prestressed beam 1. In actual design, the connection method between the U-shaped steel plate 2 and the prestressed beam 1 can be designed according to actual needs.

[0031] like Figures 1 to 3 As shown, in this embodiment, the anchor bolts 5 on each side of the U-shaped steel plate 2 are arranged side by side. The distance H2 between the central axis of each anchor bolt 5 and the top of the U-shaped steel plate 2 is 40mm to 60mm. The distance H2 between the central axis of each anchor bolt 5 and the top of the U-shaped steel plate 2 can be designed to be any value in the range of 40mm, 42mm, 44mm, 46mm, 48mm, 50mm, 52mm, 54mm, 56mm, 57mm, 60mm, etc. In actual design, the size of the distance H2 between the central axis of each anchor bolt 5 and the top of the U-shaped steel plate 2 can be designed according to actual needs.

[0032] In this embodiment, two anchor bolts 5 are provided on both sides of the U-shaped steel plate 2. The distance between the two anchor bolts 5 is 90mm to 100mm. The distance between the two anchor bolts 5 can be designed to be any value in the range of 90mm, 91mm, 92mm, 93mm, 94mm, 95mm, 96mm, 97mm, 98mm, 99mm, 100mm, etc. In actual design, the distance between the two anchor bolts 5 can be designed according to actual needs.

[0033] In this embodiment, the diameter of the anchor bolt 5 is 12mm to 16mm. Preferably, the diameter of the anchor bolt 5 is 12mm. Of course, the diameter of the anchor bolt 5 can also be designed to be any value in the range of 12mm, 13mm, 14mm, 15mm, 16mm, etc. In actual design, the diameter of the anchor bolt 5 can be designed according to actual needs.

[0034] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the product is usually placed in during use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0035] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the claims of the utility model.

[0036] The utility model patent is described above in combination with the drawings, obviously, the implementation of the utility model patent is not limited by the above-mentioned mode, as long as various improvements are made by adopting the method concept and technical scheme of the utility model patent, or the concept and technical scheme of the utility model patent are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A connection joint of a prestressed beam and a constructional column, characterized by, The prestressed beam and a U-shaped steel plate are included, the U-shaped steel plate wraps the bottom of the prestressed beam, and the bottom of the U-shaped steel plate is provided with a plurality of steel bars for binding with longitudinal reinforcement of a structural column; The steel bar is in an L shape, the steel bar includes a first connecting section and a second connecting section, the first connecting section is arranged perpendicularly to the second connecting section, the first connecting section is connected with the U-shaped steel plate, and the second connecting section is bound with longitudinal reinforcement of the structural column; Two sides of the U-shaped steel plate are symmetrically provided with a plurality of anchor bolts, one end of the anchor bolt is connected with the prestressed beam through the anchor bolt.

2. The connection joint of a prestressed beam and a constructional column according to claim 1, characterized in that, In the length direction of the U-shaped steel plate, the two adjacent steel bars are staggered.

3. The connection joint of a prestressed beam and a constructional column according to claim 1, characterized in that, The width of the first connecting section is 50mm-70mm.

4. The connection joint of a prestressed beam and a constructional column according to claim 1, characterized in that, The anchor bolts on each side of the U-shaped steel plate are arranged side by side, and the distance between the center axis of each anchor bolt and the top end of the U-shaped steel plate is 40mm-60mm.

5. The connection joint of a prestressed beam and a constructional column according to claim 1, characterized in that, Both sides of the U-shaped steel plate are provided with two anchor bolts, and the distance between the two anchor bolts is 90mm-100mm.

6. The connection joint of a prestressed beam and a constructional column according to claim 1, characterized in that, The diameter of the anchor bolt is 12mm-16mm.

7. The connection joint of a prestressed beam and a constructional column according to claim 1, characterized in that, The height of the U-shaped steel plate is 190mm-210mm.

8. The connection joint of a prestressed beam and a constructional column according to claim 1, characterized in that, The thickness of the U-shaped steel plate is 5mm-7mm.

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