Concrete beam unilateral reinforcing device and construction method

Abstract

The invention relates to the technical field of constructional engineering, in particular to a concrete beam single-side reinforcing device and a construction method. The concrete beam single-side reinforcing device comprises a formwork, the formwork is arranged on one side of a concrete beam and connected with the concrete beam, a pouring cavity is formed in the formwork, the concrete beam communicates with the pouring cavity, and a pouring hole is formed in a floor slab on the top of the pouring cavity and communicates with the pouring cavity; the supporting assembly comprises a plurality of first supporting pieces and second supporting pieces, the first supporting pieces are arranged at the bottom of the formwork at intervals, pull rods are arranged at the two ends of each first supporting piece respectively, one end of each second supporting piece is fixedly connected with the floor on the top, and the other end of each second supporting piece is fixedly connected with the corresponding first supporting piece. Through cooperative use of the formwork and the supporting assembly, single-side pouring of the concrete beam, combination of the first supporting piece and the second supporting piece are achieved, stable supporting force is provided for the formwork, the second supporting piece is fixedly connected with the floor, and therefore the reinforcing effect is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, in particular to a single-side reinforcing device for a concrete beam and a construction method. BACKGROUND

[0002] With the increasing of the service life of buildings and the increasing of the load requirements, the engineering demand for reinforcing the existing concrete beams becomes more and more common. In the method of reinforcing the single side of the concrete beam, a full scaffold is needed to support the formwork system. This method not only seriously affects the use space of the building, especially in commercial or residential buildings, which may interfere with the daily operation or the comfort of living, but also has the problems of relatively long construction period and affecting the progress of construction, in addition, the full scaffold needs a large amount of materials and labor, which undoubtedly increases the cost of the project. SUMMARY

[0003] Therefore, the present application provides a single-side reinforcing device for a concrete beam and a construction method to solve the problems of seriously affecting the use space of the building, relatively long construction period and high cost in the existing construction method.

[0004] In a first aspect, the present application provides a single-side reinforcing device for a concrete beam, comprising:

[0005] a formwork, which is arranged on one side of the concrete beam and connected with the concrete beam, and has a pouring cavity inside, the concrete beam being communicated with the pouring cavity, and a pouring hole being arranged on the top floor slab of the pouring cavity and communicated with the pouring cavity;

[0006] a support assembly, which comprises a plurality of first support members and second support members, the first support members being arranged at intervals at the bottom of the formwork, and the two ends of each first support member being provided with a pull rod, and one end of each second support member being fixedly connected with the top floor slab, and the other end of each second support member being fixedly connected with the first support member.

[0007] Beneficial effects:

[0008] Through the cooperation of the formwork and the support assembly, the pouring of the single side of the concrete beam is realized, the ingenious combination of the first support members and the second support members not only provides stable support force for the formwork, but also effectively disperses the load borne by the formwork through the fixed connection of the second support members with the floor slab, thereby further improving the reinforcing effect, and the provision of the pull rods at the two ends of the first support members greatly facilitates the adjustment of the support position, so that the reinforcing device can adapt to concrete beams of different sizes, which greatly shortens the construction period and effectively reduces the engineering cost, thereby avoiding the interference with the use space of the building caused by the erection of the scaffold and improving the use efficiency of the building.

[0009] In an optional embodiment, the support assembly further comprises a plurality of third support members, adjacent third support members are spaced apart, one end of the third support member is fixedly connected with the first support member, the other end of the third support member is fixedly connected with the floor of the top, and the third support member has an included angle with the horizontal plane.

[0010] Advantages:

[0011] By increasing the third support member, the stability of the formwork is further enhanced, effectively resisting the lateral pressure that may occur during concrete pouring, ensuring the safety and reliability of the reinforcement construction. In addition, the inclined arrangement also facilitates the adjustment of the position and angle of the third support member by construction personnel, to adapt to the needs of different construction scenes, improving the construction flexibility and efficiency.

[0012] In an optional embodiment, the inclined directions of adjacent third support members are opposite.

[0013] Advantages:

[0014] The opposite arrangement of the inclined directions of adjacent third support members can form an interlaced tension network, which enhances the overall stability of the formwork and improves the overturning resistance of the reinforcement device. In addition, the third support members with opposite inclined directions can also support each other to some extent, further improving the structural strength of the reinforcement device.

[0015] In an optional embodiment, the first support member is provided with a position adjusting structure at both ends, and the other end of the second support member is matched with the position adjusting structure to adjust the fixed position of the other end of the second support member with the first support member.

[0016] Advantages:

[0017] By arranging the position adjusting structure, construction personnel can flexibly adjust the connection position of the second support member with the first support member to adapt to the reinforcement needs of concrete beams of different sizes and shapes. This design not only improves the versatility and adaptability of the reinforcement device, but also simplifies the construction process, reduces the construction difficulty, and further shortens the construction period.

[0018] In an optional embodiment, a formwork reinforcement assembly is further included, which is arranged on the side of the formwork away from the concrete beam, and is used to support the formwork.

[0019] Advantages:

[0020] The template reinforcing assembly is used to further enhance the stability and bearing capacity of the template, and the template reinforcing assembly makes the whole reinforcing device more stable when bearing the huge pressure generated during concrete pouring, effectively avoids the deformation or damage of the template, and thus guarantees the quality and effect of the reinforcing construction.

[0021] In an alternative embodiment, the template reinforcing assembly comprises a batten and a fastener, the fastener sequentially penetrates the batten, the template and the concrete beam, so that the batten is tightly matched with the template through the fastener.

[0022] Advantages:

[0023] The fastener sequentially penetrates the batten, the template and the concrete beam, and the fastener exerts a pulling force on the batten, so that the batten is tightly matched with the template, and the batten provides a supporting force for the vertical part of the template.

[0024] In an alternative embodiment, the template reinforcing assembly further comprises a batten fixing plate, the batten fixing plate is arranged on the side of the batten away from the template, and the fastener penetrates the batten fixing plate, so that the batten fixing plate is in abutment with the batten.

[0025] Advantages:

[0026] The design of the batten fixing plate not only improves the overall strength of the template reinforcing assembly, but also effectively prevents the displacement or loosening of the batten during the fastening process, ensuring the safety and reliability of the reinforcing construction.

[0027] In an alternative embodiment, the fastener has a bent hook at one end of the concrete beam, and the bent hook is in abutment with the surface of the concrete beam.

[0028] Advantages:

[0029] The design of the bent hook increases the contact area between the fastener and the concrete beam, improves the anti-pulling capacity of the fastener, makes the template reinforcing assembly more firmly fixed on the concrete beam, and at the same time, the bent hook can also prevent the fastener from being pulled out by the concrete slurry during the concrete pouring process, thereby further guaranteeing the quality of the reinforcing construction.

[0030] In a second aspect, the present application also provides a concrete beam single-side reinforcing construction method, which adopts the concrete beam single-side reinforcing device in any of the above-mentioned schemes, and comprises the following steps:

[0031] The side of the concrete beam to be reinforced and the side of the floor facing the concrete beam are chiseled, and the concrete layer of the concrete beam is also chiseled, so that the stirrups in the concrete beam are exposed;

[0032] The chemical anchoring hole is arranged in the concrete beam, the pouring hole and the connecting hole for fixing the second support are arranged on the floor;

[0033] The steel bars, stirrups and benders are arranged in the area to be reinforced, the steel bars are welded and fixed with the stirrups, the stirrups are welded and fixed with the stirrups in the concrete beam, one end of the bender extends into the chemical anchoring hole, and the other end is welded and fixed with the steel bar;

[0034] The formwork is installed, the second support is fixedly connected with the connecting hole to provide the pulling force to the first support, and the first support supports the bottom of the formwork;

[0035] The flexible material is used to block the gap between the formwork and the concrete beam, then pouring is performed through the pouring hole, the concrete is vibrated and compacted after pouring is completed, and the support assembly and the formwork can be removed after the concrete reaches the form removal strength.

[0036] Beneficial effects:

[0037] Because the concrete beam single-side reinforcing device is applied to the concrete beam single-side reinforcing construction method, the concrete beam single-side reinforcing construction method has the same effect as the concrete beam single-side reinforcing device, and details are not repeated here.

[0038] In an alternative embodiment, the following step is further included: while the formwork is installed, a formwork reinforcing assembly needs to be installed on the outer peripheral surface of the formwork to strengthen the strength of the formwork. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0040] Figure 1 It is a sectional view of a concrete beam single-side reinforcing device of an embodiment of the present application;

[0041] Figure 2 It is a top view of a concrete beam single-side reinforcing device of an embodiment of the present application;

[0042] Figure 3 It is a side view of a concrete beam single-side reinforcing device of an embodiment of the present application;

[0043] Figure 4 It is a schematic view of a floor of an embodiment of the present application;

[0044] Figure 5 It is a schematic view of a first support of an embodiment of the present application;

[0045] Figure 6 This is a schematic diagram of the third support member according to an embodiment of the present invention;

[0046] Figure 7 This is a schematic diagram of the template reinforcement component according to an embodiment of the present invention.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1. Formwork; 2. Concrete beam; 3. Pouring cavity; 4. Floor slab; 5. Pouring hole; 6. Support components; 601. First support component; 602. Second support component; 603. Third support component; 7. Position adjustment structure; 8. Formwork reinforcement components; 801. Timber; 802. Fasteners; 8021. Bending hook; 803. Timber fixing plate; 9. Connection hole. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0050] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.

[0051] According to an embodiment of the present invention, a single-sided reinforcement device for a concrete beam is provided, comprising: a template 1 and a support assembly 6.

[0052] Specifically, template 1 is set on one side of concrete beam 2 and connected to concrete beam 2. Template 1 has a pouring cavity 3, and concrete beam 2 communicates with pouring cavity 3. The floor slab 4 at the top of pouring cavity 3 has a pouring hole 5, which communicates with pouring cavity 3. Support assembly 6 includes multiple first support members 601 and second support members 602. Multiple first support members 601 are spaced apart at the bottom of template 1. Tie rods are respectively provided at both ends of the first support members 601. One end of the second support member 602 is fixedly connected to the top floor slab 4, and the other end of the second support member 602 is fixedly connected to the first support member 601.

[0053] In this embodiment, template 1 is erected on the side of concrete beam 2 that needs reinforcement. Template 1 has an L-shaped cross-section. The upper surface of the horizontal part of template 1 is on the same plane as the bottom surface of concrete beam 2. The top of the vertical part of template 1 abuts against the top floor slab 4. The floor slab 4, concrete beam 2, and template 1 together form a pouring cavity 3. Multiple first support members 601 are fixedly installed at the bottom of template 1. Multiple first support members 601 are spaced apart along the guide direction of template 1. Second support members 602 are respectively installed at both ends of the first support members 601. The upper end of the second support member 602 is fixedly connected to the top floor slab 4, and the lower end of the second support member 602 is fixedly connected to the first support member 601. The second support member 602 can apply an upward tensile force to the first support member 601 so that the second support member 602 supports template 1. The top floor slab 4 has a connecting hole 9 and a pouring hole 5. The upper end of the second support member 602 can be fixedly connected to the top floor slab 4 through the connecting hole 9. The pouring hole 5 is located above the pouring cavity 3, and the pouring hole 5 connects the pouring cavity 3 with the upper space. The number of first support members 601 is not limited here, and the number of first support members 601 can be determined according to the length of the template 1 and the construction process.

[0054] Preferably, the first support member 601 is a support angle steel, and the second support member 602 is a lifting bolt. The two ends of the support angle steel are provided with bolt holes for fixed connection with the lifting bolt.

[0055] By using the template 1 in conjunction with the support component 6, the pouring of concrete beam 2 on one side was achieved. The ingenious combination of the first support component 601 and the second support component 602 not only provided stable support for the template 1, but also effectively distributed the load borne by the template 1 through the fixed connection between the second support component 602 and the floor slab 4, thereby further improving the reinforcement effect. The setting of tie rods at both ends of the first support component 601 provides great convenience for adjusting the support position, enabling the reinforcement device to adapt to concrete beams 2 of different sizes. This not only greatly shortens the construction cycle, but also effectively reduces the project cost, thereby avoiding interference with the building's usable space caused by scaffolding and improving the building's usability.

[0056] In one embodiment, the support component 6 further includes a plurality of third support members 603, with adjacent third support members 603 spaced apart. One end of the third support member 603 is fixedly connected to the first support member 601, and the other end of the third support member 603 is fixedly connected to the top floor slab 4. The third support member 603 has an angle with the horizontal plane.

[0057] Specifically, such as Figure 1 , Figure 3 and Figure 6As shown, the third support member 603 is disposed at both ends of the first support member 601, namely, on the side of the formwork 1 away from the concrete beam 2 and on the side of the concrete beam 2 away from the formwork 1. The third support member 603 has connecting portions (not shown) at both ends. The connecting portion at the upper end of the third support member 603 is fitted to the top floor slab 4 and fixed to the top floor slab 4 by fastening screws. The connecting portion at the upper end of the third support member 603 is fitted to the upper end face of the first support member 601 and fixedly connected to the first support member 601 by fastening screws. The third support member 603 is obliquely positioned, providing oblique tension to the first support member 601.

[0058] By adding the third support member 603, the stability of the formwork 1 is further enhanced, effectively resisting the lateral pressure that may be generated during the concrete pouring process, ensuring the safety and reliability of the reinforcement construction. In addition, the inclined setting makes it easier for construction personnel to adjust the position and angle of the third support member 603 to adapt to the needs of different construction scenarios, improving construction flexibility and efficiency.

[0059] In one embodiment, the adjacent third support members 603 are tilted in opposite directions.

[0060] Specifically, the inclination directions of adjacent third support members 603 on the same side are opposite, such as... Figure 3 As shown, two adjacent third support members 603, one tilted to the right and the other to the left. This opposite tilting direction of the adjacent third support members 603 creates an interlaced tension network, enhancing the overall stability of the template 1 and improving the overturning resistance of the reinforcement device. Furthermore, the opposite tilting directions of the third support members 603 also provide mutual support to a certain extent, further enhancing the structural strength of the reinforcement device.

[0061] In one embodiment, the first support member 601 is provided with position adjustment structures 7 at both ends, and the other end of the second support member 602 cooperates with the position adjustment structures 7 so that the other end of the second support member 602 is adjusted to a fixed position relative to the first support member 601.

[0062] Specifically, such as Figure 5 As shown, the lower end of the second support member 602 can move within the position adjustment structure 7, thereby adjusting the position of the second support member 602. When the second support member 602 moves to the appropriate position, the lower end of the second support member 602 is fixed to the position adjustment structure 7 by tightening the nut.

[0063] Preferably, the position adjustment structure 7 is a waist-shaped hole.

[0064] By incorporating the position adjustment structure 7, construction workers can flexibly adjust the connection position between the second support member 602 and the first support member 601 to accommodate the reinforcement needs of concrete beams 2 of different sizes and shapes. This design not only improves the versatility and adaptability of the reinforcement device but also simplifies the construction process, reduces construction difficulty, and further shortens the construction cycle.

[0065] In one embodiment, a template reinforcement component 8 is also included. The template reinforcement component 8 is disposed on the side of the template 1 away from the concrete beam 2 and is used to support the template 1.

[0066] Specifically, such as Figure 1 As shown, the template reinforcement component 8 is set on the right side of the template 1. The template reinforcement component 8 is used to further enhance the stability and load-bearing capacity of the template 1. The template reinforcement component 8 makes the entire reinforcement device more stable when it is subjected to the huge pressure generated during concrete pouring, effectively preventing the template 1 from deforming or being damaged, thereby ensuring the quality and effect of the reinforcement construction.

[0067] In one embodiment, the template reinforcement component 8 includes timber 801 and fastener 802, with the fastener 802 passing through the timber 801, template 1 and concrete beam 2 in sequence, so that the timber 801 is tightly fitted with the template 1 through the fastener 802.

[0068] Specifically, such as Figure 2 , Figure 3 and Figure 7 As shown, the timber 801 is placed on the side of the formwork 1 away from the concrete beam 2. The timber 801 fits against the side of the formwork 1. The fastener 802 passes through the timber 801, the formwork 1 and the concrete beam 2 in sequence. The fastener 802 applies tension to the timber 801, so that the timber 801 fits tightly with the formwork 1. The timber 801 provides support for the vertical part of the formwork 1.

[0069] In one embodiment, the template reinforcement assembly 8 further includes a timber fixing plate 803, which is disposed on the side of the timber 801 away from the template 1, and a fastener 802 passes through the timber fixing plate 803 so that the timber fixing plate 803 abuts against the timber 801.

[0070] Specifically, such as Figure 7 As shown, the timber fixing plate 803 applies pressure to the timber 801, thereby further enhancing the connection stability between the timber 801 and the template 1. The design of the timber fixing plate 803 not only improves the overall strength of the template reinforcement component 8, but also effectively prevents the timber 801 from shifting or loosening during the fastening process, ensuring the safety and reliability of the reinforcement construction.

[0071] In one embodiment, the fastener 802 has a bent hook 8021 at one end of the concrete beam 2, and the bent hook 8021 abuts against the surface of the concrete beam 2.

[0072] Specifically, such as Figure 2 As shown, the design of the bent hook 8021 increases the contact area between the fastener 802 and the concrete beam 2, improves the pull-out resistance of the fastener 802, and enables the formwork reinforcement component 8 to be more firmly fixed to the concrete beam 2. At the same time, the bent hook 8021 can also prevent the fastener 802 from being pulled out by the concrete slurry during the concrete pouring process, thereby further ensuring the quality of the reinforcement construction.

[0073] According to an embodiment of the present invention, another aspect provides a method for unilateral reinforcement of a concrete beam 2, comprising the following steps:

[0074] The sides of the concrete beam 2 to be reinforced and the sides of the floor slab 4 facing the concrete beam 2 are roughened, and the concrete layer of the concrete beam 2 is removed to expose the stirrups inside the concrete beam 2.

[0075] Furthermore, chemical anchoring holes are made in the concrete beam 2, and casting holes 5 and connection holes 9 for fixing the second support 602 are made in the floor slab 4.

[0076] Specifically, when drilling chemical anchoring holes in the concrete beam 2, it is necessary to ensure that the hole positions are accurate and that the hole diameter and depth meet the design requirements so that subsequent anchoring work can proceed smoothly. After the chemical anchoring holes are drilled, they need to be cleaned to remove dust and impurities, ensuring good adhesion between the anchoring adhesive and the concrete beam 2. At the same time, the pouring holes 5 and connecting holes 9 drilled in the floor slab 4 also need to be accurately positioned and appropriately sized to facilitate subsequent pouring work and the fixing of the second support 602.

[0077] Furthermore, reinforcing bars, stirrups, and web reinforcements are installed in the area to be reinforced, and the reinforcing bars are welded and fixed to the stirrups. The stirrups are welded and fixed to the stirrups in the concrete beam 2. One end of the web reinforcement extends into the chemical anchoring hole, and the other end is welded and fixed to the reinforcing bar.

[0078] Specifically, when installing reinforcing bars, stirrups, and web reinforcement in the area to be reinforced, it is necessary to ensure that the reinforcing bars are firmly welded to the stirrups, and the stirrups are also welded and fixed to the stirrups inside the concrete beam 2 to ensure the integrity and stability of the reinforced structure. One end of the web reinforcement extends into the chemical anchoring hole and is bonded and fixed to the concrete beam 2 by anchoring adhesive, while the other end is welded and fixed to the reinforcing bar to enhance the shear resistance of the reinforced structure.

[0079] Furthermore, the template 1 is installed, and the second support 602 is fixedly connected to the connecting hole 9 to provide tension to the first support 601, so that the first support 601 supports the bottom of the template 1;

[0080] Specifically, when installing formwork 1, it is necessary to ensure that formwork 1 is accurately positioned and tightly fitted with concrete beam 2 and floor slab 4 to prevent grout leakage during pouring. Simultaneously, the second support member 602 must be fixedly connected to the connecting hole 9 to provide stable tension to the first support member 601, ensuring that the first support member 601 firmly supports the bottom of formwork 1. The two ends of the third support member 603 are fixedly connected to the floor slab 4 and the first support member 601 respectively, providing lateral tension to the first support member 601.

[0081] Furthermore, the gap between the formwork 1 and the concrete beam 2 is sealed with flexible material, and then the concrete is poured through the pouring hole 5. After the pouring is completed, it is vibrated to make it dense. After the concrete reaches the demolding strength, the support component 6 and the formwork 1 can be removed.

[0082] Specifically, after template 1 is installed and fixed, the surface scum inside template 1 is flushed away using the grouting holes. Then, flexible material is used to seal the gap between template 1 and the concrete beam 2. During sealing, it is essential to ensure a tight seal to prevent concrete slurry from leaking out during pouring. Pouring is then carried out through pouring hole 5. During pouring, the pouring speed and vibration intensity must be controlled to avoid air bubbles and voids, ensuring pouring quality. After pouring, the support components 6 and template 1 can only be removed after the concrete has reached the required demolding strength. Care must be taken during removal to avoid damaging the reinforced structure. After removal, the reinforced structure must be inspected and accepted to ensure the reinforcement effect meets design requirements.

[0083] Furthermore, while installing template 1, template reinforcement components 8 need to be installed on the outer periphery of template 1 to strengthen the template 1.

[0084] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A single-sided reinforcement device for concrete beams, characterized in that, include: Template (1), the template (1) is set on one side of the concrete beam (2) and connected to the concrete beam (2), the template (1) has a pouring cavity (3), the concrete beam (2) is connected to the pouring cavity (3), the floor slab (4) at the top of the pouring cavity (3) has a pouring hole (5), the pouring hole (5) is connected to the pouring cavity (3); The support assembly (6) includes a plurality of first support members (601) and second support members (602). The plurality of first support members (601) are spaced apart at the bottom of the template (1). Each of the first support members (601) has a tie rod at both ends. One end of the second support member (602) is fixedly connected to the top floor slab (4), and the other end of the second support member (602) is fixedly connected to the first support member (601).

2. The single-sided reinforcement device for concrete beams according to claim 1, characterized in that, The support assembly (6) also includes a plurality of third support members (603), which are spaced apart from each other. One end of the third support member (603) is fixedly connected to the first support member (601), and the other end of the third support member (603) is fixedly connected to the top floor slab (4). The third support member (603) has an angle with the horizontal plane.

3. The single-sided reinforcement device for concrete beams according to claim 2, characterized in that, The adjacent third support members (603) have opposite tilt directions.

4. The single-sided reinforcement device for concrete beams according to any one of claims 1 to 3, characterized in that, The first support member (601) is provided with position adjustment structures (7) at both ends, and the other end of the second support member (602) cooperates with the position adjustment structures (7) so that the other end of the second support member (602) is adjusted to a fixed position relative to the first support member (601).

5. The single-sided reinforcement device for concrete beams according to claim 1, characterized in that, It also includes a template reinforcement component (8), which is disposed on the side of the template (1) away from the concrete beam (2) and is used to support the template (1).

6. The single-sided reinforcement device for concrete beams according to claim 5, characterized in that, The template reinforcement component (8) includes timber (801) and fasteners (802). The fasteners (802) pass through the timber (801), the template (1) and the concrete beam (2) in sequence, so that the timber (801) is tightly fitted with the template (1) through the fasteners (802).

7. The single-sided reinforcement device for concrete beams according to claim 6, characterized in that, The template reinforcement component (8) also includes a timber fixing plate (803), which is disposed on the side of the timber (801) away from the template (1). The fastener (802) passes through the timber fixing plate (803) so that the timber fixing plate (803) abuts against the timber (801).

8. The single-sided reinforcement device for concrete beams according to claim 6 or 7, characterized in that, The fastener (802) has a bent hook (8021) at one end that penetrates the concrete beam (2), and the bent hook (8021) abuts against the surface of the concrete beam (2).

9. A method for constructing a single-sided reinforcement of a concrete beam, employing the single-sided reinforcement device for concrete beams as described in any one of claims 1 to 8, characterized in that, Includes the following steps: Roughen the side of the concrete beam (2) to be reinforced and the side of the floor slab (4) facing the concrete beam (2), and remove the concrete layer of the concrete beam (2) to expose the stirrups inside the concrete beam (2). Chemical anchoring holes are made in the concrete beam (2), and casting holes (5) and connection holes (9) for fixing the second support (602) are made in the floor slab (4); Reinforcing bars, stirrups and web bars are installed in the area to be reinforced, and the reinforcing bars are welded and fixed to the stirrups. The stirrups are welded and fixed to the stirrups in the concrete beam (2). One end of the web bar extends into the chemical anchor hole, and the other end is welded and fixed to the reinforcing bar. Install template (1), and fix the second support (602) to the connecting hole (9) to provide tension to the first support (601), so that the first support (601) supports the bottom of template (1); The gap between the formwork (1) and the concrete beam (2) is sealed with flexible material, and then the concrete is poured through the pouring hole (5). After the concrete is poured, it is vibrated to make it dense. After the concrete reaches the demolding strength, the support components (6) and the formwork (1) can be removed.

10. The method for single-sided reinforcement of concrete beams according to claim 9, characterized in that, The method also includes the following steps: while the template (1) is being installed, a template reinforcement component (8) needs to be installed on the outer periphery of the template (1) to strengthen the template (1).

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