Reinforced concrete beam structure

Abstract

The invention discloses a reinforced concrete beam structure which comprises a prefabricated steel frame, a reinforcing steel bar assembly and a locking piece, the reinforcing steel bar assembly is installed in the prefabricated steel frame, and the locking piece is used for locking and fixing the joint of the reinforcing steel bar assembly and the prefabricated steel frame; by means of the double connection mode that welding is matched with bolt locking, the lower horizontal part and the upper horizontal part of the bent steel bar are welded to the U-shaped plate to form the integrated reinforcing assembly, then the locking bolt and the nut penetrate through the prefabricated steel frame and the U-shaped plate, and connection of the prefabricated steel frame and the U-shaped plate is strengthened. Connection looseness caused by vibration and load changes in long-term use is effectively avoided, it is ensured that the reinforcing steel bar assembly and the prefabricated steel frame are always stably connected, and a foundation is laid for the stability of the overall structure of a beam body.

Description

Technical Field

[0001] This invention relates to the field of reinforced concrete beam technology, specifically to a reinforced concrete beam structure. Background Technology

[0002] In the fields of civil engineering and building structures, reinforced concrete beams, as core load-bearing components, directly affect the overall safety and service life of buildings through their mechanical properties and durability. Traditional reinforced concrete beams are usually constructed by binding the steel reinforcement cage on-site and pouring concrete. However, this process has problems such as long construction cycle, difficulty in quality control, and significant impact of manual operation on the overall structural integrity. Especially in complex load environments or scenarios with high seismic requirements, when the beam is subjected to bending or shear, the traditional reinforcement layout (such as straight steel bars) is prone to stress concentration at the mid-span or supports, leading to concrete cracking or steel bar yielding, which reduces structural durability. Especially for large-span or heavy-load beams, local failure may lead to overall instability, making it difficult to meet the dual requirements of modern buildings for structural safety and economy. Therefore, we need to propose a reinforced concrete beam structure. Summary of the Invention

[0003] The purpose of this invention is to provide a reinforced concrete beam structure that, through the arrangement of prefabricated steel frames, reinforcing steel components, and locking devices, forms a multi-directional force transmission path, effectively dispersing stress concentration in the beam and reducing the risk of concrete cracking, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A reinforced concrete beam structure includes a precast steel frame, a reinforcing steel assembly, and a locking device. The reinforcing steel assembly is installed inside the precast steel frame, and the locking device is used to lock and fix the connection between the reinforcing steel assembly and the precast steel frame. The reinforcing steel assembly includes U-shaped plates and bent steel bars. There are three sets of U-shaped plates, which are respectively installed in the middle of the inner top and inner bottom of both ends of the precast steel frame. There are two sets of bent steel bars arranged symmetrically, and the two sets of bent steel bars are fixedly installed inside the three sets of U-shaped plates.

[0005] Preferably, the bent steel bar includes a lower horizontal part, an inclined connecting part, and an upper horizontal part, with inclined connecting parts connected to both ends of the lower horizontal part, and one end of each of the two sets of inclined connecting parts connected to the upper horizontal part.

[0006] Preferably, the lower horizontal portions of the two sets of bent reinforcing bars are installed in parallel within the U-shaped plate at the bottom of the precast steel frame, and the upper horizontal portions at both ends of the two sets of bent reinforcing bars are installed in parallel within the U-shaped plates at the top of both ends of the precast steel frame.

[0007] Preferably, both the lower horizontal portion and the upper horizontal portion are welded to the inner bottom of the U-shaped plate.

[0008] Preferably, the bottom of the U-shaped plate has a welding hole for welding the bent steel bar, and the precast steel frame has a through hole corresponding to the welding hole.

[0009] Preferably, the locking component includes a locking bolt and a locking nut, with one end of the locking bolt passing through a pre-drilled hole in the side wall of the precast steel frame and U-shaped plate and being fixed by the locking nut.

[0010] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention employs a dual connection method involving welding and bolt locking. First, the lower and upper horizontal parts of the bent reinforcing bars are welded to the U-shaped plate to form an integrated reinforcing component. Then, locking bolts and nuts are used to penetrate the precast steel frame and the U-shaped plate to strengthen the connection between the two. Compared with a single connection method, this effectively avoids loosening of the connection due to vibration and load changes during long-term use, ensuring that the reinforcing bar component and the precast steel frame always maintain a stable connection, thus laying the foundation for the overall structural stability of the beam. 2. This invention utilizes a bent steel bar structure, combined with two symmetrically arranged designs, to form a three-dimensional stress-bearing system covering the bottom, middle, and top of both ends of the beam. The lower horizontal section primarily bears the vertical pressure of the beam, while the upper horizontal section handles the horizontal tension at both ends. The inclined connection section transmits and disperses the bending stress in the middle, ensuring uniform stress distribution across the beam and effectively preventing structural cracking or deformation caused by localized stress concentration. This significantly improves the beam's resistance to bending and deformation. Furthermore, the combination of the U-shaped plate and bent steel bars reinforces key stress-bearing areas such as the inner top and bottom middle of the precast steel frame. These areas are prone to significant stress when the beam is under load. Through the support and force transfer of the reinforcement components, the load-bearing capacity of these key areas can be significantly improved, thereby increasing the overall load-bearing capacity of the beam and meeting higher engineering load requirements. Attached Figure Description

[0011] Figure 1 This is a side view of the three-dimensional structure of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; Figure 3 This is a structural schematic diagram of the reinforcing steel reinforcement assembly and locking component of the present invention.

[0012] In the diagram: 1. Precast steel frame; 2. Reinforcing steel reinforcement assembly; 21. U-shaped plate; 22. Bent steel bar; 221. Lower horizontal section; 222. Inclined connection section; 223. Upper horizontal section; 3. Locking component; 31. Locking bolt; 32. Locking nut. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Please see Figure 1-3 The present invention provides a technical solution: A reinforced concrete beam structure includes a precast steel frame 1, a reinforcing steel assembly 2, and a locking member 3. The reinforcing steel assembly 2 is installed inside the precast steel frame 1, and the locking member 3 is used to lock and fix the connection between the reinforcing steel assembly 2 and the precast steel frame 1. By setting up a precast steel frame 1 as the basic support frame of the beam, reinforcing steel components 2 to enhance the structural strength of the beam, and locking components 3 to strengthen the connection stability of the two, the overall load-bearing capacity and structural reliability of the beam are improved, and the connection is prevented from becoming loose during use. In an optional embodiment: the reinforcing steel component 2 includes U-shaped plates 21 and bent steel bars 22. Three sets of U-shaped plates 21 are provided, and the three sets of U-shaped plates 21 are respectively installed in the middle of the inner top and inner bottom of both ends of the precast steel frame 1. Two sets of bent steel bars 22 are symmetrically arranged, and the two sets of bent steel bars 22 are fixedly installed inside the three sets of U-shaped plates 21. It should be noted that by setting three sets of U-shaped plates 21 to provide precise installation positioning points for the bent steel bars 22, the two sets of symmetrical bent steel bars 22 and U-shaped plates 21 cooperate to form a three-dimensional reinforcing structure, which achieves the effect of ensuring the accurate installation position of the reinforcing steel component 2 in the precast steel frame 1, and at the same time enhancing the structural strength of the key stress parts of the beam (the middle of the top and bottom ends). In an optional embodiment, the bent steel bar 22 includes a lower horizontal portion 221, an inclined connecting portion 222, and an upper horizontal portion 223. Both ends of the lower horizontal portion 221 are connected to the inclined connecting portion 222, and one end of each of the two sets of inclined connecting portions 222 is connected to the upper horizontal portion 223. It should be noted that by setting the lower horizontal portion 221, the inclined connecting portion 222, and the upper horizontal portion 223 to form a bent steel bar structure, the bent steel bar 22 can adapt to the stress requirements of different positions within the precast steel frame 1, thereby enabling the bent steel bar 22 to simultaneously withstand the vertical pressure and horizontal tension of the beam, and improving the beam's resistance to bending and deformation. In an optional embodiment: the lower horizontal portions 221 of the two sets of bent steel bars 22 are installed in parallel within the U-shaped plate 21 at the bottom of the precast steel frame 1, and the upper horizontal portions 223 at both ends of the two sets of bent steel bars 22 are installed in parallel within the U-shaped plates 21 at the top of both ends of the precast steel frame 1. It should be noted that by setting the lower horizontal portions 221 of the two sets of bent steel bars 22 to be concentrated in the bottom U-shaped plate 21 and the upper horizontal portions 223 to be correspondingly distributed in the top U-shaped plates 21 at both ends, a symmetrical and balanced force support system is formed, which achieves the effect of uniform stress distribution in all parts of the beam and avoids structural damage caused by local stress concentration. In an optional embodiment, both the lower horizontal portion 221 and the upper horizontal portion 223 are welded to the inner bottom of the U-shaped plate 21. It should be noted that by setting the horizontal portion of the bent steel bar 22 to be welded to the U-shaped plate 21, the two form a solid integrated structure, which prevents the bent steel bar 22 from shifting within the U-shaped plate 21, ensures the overall stability of the reinforced steel bar assembly 2, and thus improves the load-bearing safety of the beam structure.

[0015] In an optional embodiment: the bottom of the U-shaped plate 21 is provided with welding holes for welding the bent steel bar 22, and the precast steel frame 1 is provided with through holes corresponding to the welding holes; it should be noted that by setting welding holes at the bottom of the U-shaped plate 21 to provide space for welding operations, the corresponding through holes on the precast steel frame 1 can serve as venting channels during subsequent concrete pouring, thereby ensuring welding quality, avoiding weak connections due to welding blind spots, and optimizing the concrete pouring effect. In an optional embodiment: the locking component 3 includes a locking bolt 31 and a locking nut 32. One end of the locking bolt 31 passes through the pre-drilled holes in the side walls of the precast steel frame 1 and the U-shaped plate 21 and is fixed by the locking nut 32. It should be noted that by setting the locking bolt 31 and the locking nut 32 to cooperate, the U-shaped plate 21 and the precast steel frame 1 are tightly connected to form a double connection structure of "welding + bolt fixing", which further strengthens the connection strength between the reinforcing steel component 2 and the precast steel frame 1 and prevents the connection from loosening due to vibration and load changes during long-term use.

[0016] Working principle: During operation, the precast steel frame 1 first serves as the foundation support for the beam, providing a stable frame foundation for the entire structure. Subsequently, the three sets of U-shaped plates 21 in the reinforcing steel reinforcement assembly 2 act as positioning carriers, precisely fixing the two sets of symmetrical bent steel bars 22 at key stress positions inside the precast steel frame 1. The lower horizontal part 221, the inclined connection part 222, and the upper horizontal part 223 of the bent steel bars 22 work together to bear the vertical pressure at the bottom of the beam, the bending stress in the middle, and the horizontal tension at both ends, respectively. The welded connection ensures that there is no relative displacement between the bent steel bars 22 and the U-shaped plates 21, forming a reliable internal reinforcement system. Meanwhile, the locking bolts 31 and locking nuts 32 of the locking component 3 penetrate through the precast steel frame 1 and the U-shaped plate 21, further strengthening the connection between the two and preventing the connection between the reinforcing steel component 2 and the precast steel frame 1 from becoming loose. During the subsequent concrete pouring process, the through holes on the precast steel frame 1 can expel air from the concrete, ensuring that the concrete is filled densely, and finally forming a composite structure of "precast steel frame + reinforcing steel component + concrete". Through the coordinated force of each component, the overall load-bearing capacity, bending deformation resistance and service life of the beam are improved.

[0017] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced concrete beam structure, characterized in that, It includes a precast steel frame (1), a reinforcing steel assembly (2), and a locking component (3). The reinforcing steel assembly (2) is installed inside the precast steel frame (1), and the locking component (3) is used to lock and fix the connection between the reinforcing steel assembly (2) and the precast steel frame (1). The reinforcing steel assembly (2) includes a U-shaped plate (21) and bent steel bars (22). The U-shaped plate (21) is provided in three sets. The three sets of U-shaped plates (21) are respectively installed in the middle of the inner top and inner bottom of both ends of the precast steel frame (1). The bent steel bars (22) are symmetrically arranged in two sets. The two sets of bent steel bars (22) are fixedly installed inside the three sets of U-shaped plates (21).

2. The reinforced concrete beam structure according to claim 1, characterized in that: The bent steel bar (22) includes a lower horizontal part (221), an inclined connecting part (222) and an upper horizontal part (223). Both ends of the lower horizontal part (221) are connected to the inclined connecting part (222), and one end of each of the two sets of inclined connecting parts (222) is connected to the upper horizontal part (223).

3. A reinforced concrete beam structure according to claim 2, characterized in that: The lower horizontal portions (221) of the two sets of bent steel bars (22) are installed in parallel within the U-shaped plate (21) at the bottom of the precast steel frame (1), and the upper horizontal portions (223) at both ends of the two sets of bent steel bars (22) are installed in parallel within the U-shaped plate (21) at the top of both ends of the precast steel frame (1).

4. A reinforced concrete beam structure according to claim 2, characterized in that: Both the lower horizontal section (221) and the upper horizontal section (223) are welded to the inner bottom of the U-shaped plate (21).

5. A reinforced concrete beam structure according to claim 1, characterized in that: The bottom of the U-shaped plate (21) is provided with welding holes for welding the bent steel bar (22), and the precast steel frame (1) is provided with through holes corresponding to the welding holes.

6. A reinforced concrete beam structure according to claim 1, characterized in that: The locking component (3) includes a locking bolt (31) and a locking nut (32). One end of the locking bolt (31) passes through the pre-drilled hole in the side wall of the precast steel frame (1) and the U-shaped plate (21) and is fixed by the locking nut (32).

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