Concrete beam reinforcing pouring mold and construction method

Abstract

The invention relates to the field of building repair construction, in particular to a concrete beam reinforcing pouring mold and a construction method.The concrete beam reinforcing pouring mold comprises ground anchors, a modular bottom plate and a forming formwork assembly, and after the modular bottom plate is installed on a concrete beam, a forming cavity is defined by the forming formwork assembly and the bottom end face of the concrete beam; the forming cavity is used for storing slurry and limiting the forming shape of the slurry, one end of the anchor nail is fixedly installed at the bottom of the concrete beam, the other end of the anchor nail extends into the forming cavity, and after the slurry is poured into the forming cavity and formed, the formed reinforcing area is bonded to the concrete beam and is connected with the concrete beam into a whole through the anchor nail. The integrality of a reinforcing area formed by newly pouring and an original concrete beam can be improved, and then the reinforcing effect on the original concrete beam is improved.

Description

Technical Field

[0001] The invention relates to the field of building repair construction, and in particular to a concrete beam reinforcement casting mold and a construction method. Background Art

[0002] Concrete beams are the main load-bearing structures of facilities such as houses and bridges and are prone to damage. Therefore, the concrete beams need to be reinforced. In the prior art, after the concrete beams are reinforced, the reinforced sections formed are difficult to be tightly connected with the original concrete beams, and the reinforced sections often fall off from the original concrete beams, resulting in unsatisfactory reinforcement effects.

[0003] Therefore, it is necessary to provide a new concrete beam reinforcement casting mold and a construction method to improve the reinforcement effect of the concrete beam. Summary of the invention

[0004] In order to solve the above technical problems, on the one hand, the present invention provides a concrete beam reinforcement casting mold, comprising:

[0005] A modular base plate that can be removably installed at the bottom of the concrete beam;

[0006] A forming template assembly, the forming template assembly comprising sealing plates arranged at opposite ends of the modular base plate, and a first support member between the two sealing plates, wherein the sealing plates and the first support member enclose a forming cavity, and the forming cavity is used to store slurry and limit a forming shape of the slurry;

[0007] An anchor, one end of which can be fixedly installed on the concrete beam, and after the anchor is installed on the concrete beam, the other end of the anchor extends into the forming cavity.

[0008] Preferably, the forming cavity is provided with a pouring port for pouring grout into the forming cavity, and the pouring port is located on a side of the forming cavity away from the first support member.

[0009] Preferably, an edge of the modular base plate away from the first support member is folded toward the forming cavity to form a bending section. When the modular base plate is installed on the concrete beam, the top height of the bending section is higher than the bottom end surface of the concrete beam, and the pouring port is formed by the gap between the bending section and the wall surface of the concrete beam; the end surface of the sealing plate on one side of the bending section is in contact and cooperation with the wall surface of the bending section.

[0010] Preferably, the forming template assembly also includes a second support member, which is detachably mounted between the two sealing plates on the modular base plate. When the second support member is installed on the modular base plate, it can close the pouring port to make the forming cavity an enclosed chamber.

[0011] Preferably, when the modular base plate is installed on the concrete beam, the tops of the first support member and the second support member are higher than the height of the bottom end surface of the concrete beam, and the first support member and the second support member are respectively in contact with the two opposite sides of the concrete beam.

[0012] Preferably, the forming template assembly further comprises a first restraining support and a second restraining support mounted on the modular base plate, which are used to restrain the first support member and the second support member respectively, so that the first support member and the second support member are close to the concrete beam.

[0013] Preferably, it further comprises restraining plates, which are arranged at intervals on a side of the modular base plate away from the concrete beam, and at least two of the restraining plates are located opposite to the sealing plate.

[0014] Preferably, a mounting hole is provided on the modular base plate. When the template base plate is installed on the concrete beam, the mounting section of the anchor can pass through the mounting hole, and the mounting section is provided with an external thread for installing a fastening nut.

[0015] Preferably, the modular base plate is divided into a first modular base plate located at both ends and at least one second modular base plate located in the middle, the first modular base plate and the second modular base plate are both provided with the first support member, and the sealing plate is provided at both ends of the two first modular base plates away from each other.

[0016] On the other hand, the present invention also provides a concrete beam reinforcement construction method based on the above-mentioned concrete beam reinforcement casting mold, the method comprising:

[0017] preparing and assembling modular base plates and forming formwork assemblies;

[0018] An anchor hole is opened at the bottom of the concrete beam to be reinforced, and one end of the anchor is fixedly installed in the anchor hole;

[0019] Installing the modular base plate and the forming formwork assembly on the concrete beam so that the casting mold and the concrete beam enclose a forming cavity;

[0020] pouring slurry into the forming cavity;

[0021] Let it stand and remove the casting mold after the slurry solidifies.

[0022] By applying the technical solution provided by the present invention, anchors are preset at the bottom of the concrete beam, the modular bottom plate of the casting mold is detachably connected to the concrete beam, the forming template assembly and the concrete beam form a forming cavity, and one end of the anchor is located in the forming cavity. After pouring slurry into the forming cavity and forming, the formed reinforcement area is bonded to the concrete beam and connected to the concrete beam as a whole through the anchors, which can improve the integrity of the newly cast reinforcement area and the original concrete beam, thereby improving the reinforcement effect of the original concrete beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the concrete beam reinforcement casting mold provided by an embodiment of the present invention after being installed on the concrete beam;

[0024] Figure 2 It is a schematic diagram of the overall structure of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0025] Figure 3 is a cross-sectional view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention after being installed on a concrete beam;

[0026] Figure 4 is a cross-sectional view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0027] Figure 5 is a side view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention after being installed on a concrete beam;

[0028] Figure 6 is a side view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0029] Figure 7 is a bottom view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0030] Figure 8 is a top view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention after being installed on a concrete beam;

[0031] Fig. 9 is a top view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0032] Fig.10 is a partial view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0033] Fig.11 is a structural schematic diagram of a first modular unit of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0034] Fig.12is a structural schematic diagram of a second modular unit of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0035] Fig.13 is a structural schematic diagram of a first modular bottom plate of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0036] Fig.14 is a structural schematic diagram of a first restraining plate of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0037] Fig.15 is a structural schematic diagram of a second restraining plate of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0038] Fig.16 It is a structural schematic diagram of a sealing plate of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0039] Fig.17 is a structural schematic diagram of a first constraint support of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0040] Fig.18 is a structural schematic diagram of a second constraint support of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0041] Fig.19 It is a schematic structural diagram of an anchor nail of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0042] Fig. 20 is a schematic structural diagram of a first supporting member of a concrete beam reinforcement casting mold provided by an embodiment of the present invention;

[0043] Among them, 1. concrete beam; 11. reinforcement area; 2. casting mold; 21. modular base plate; 2101. first modular base plate; 2102. second modular base plate; 211. bending section; 212. mounting hole; 22. forming template assembly; 221. sealing plate; 222. first support member; 2221. first constraint support; 223. second support member; 2231. second constraint support; 2232. third constraint support; 224. constraint plate; 2241. first constraint plate; 2242. second constraint plate; 23. anchor nail; 231. anchoring section; 232. mounting section; 24. forming cavity; 25. pouring gate. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Figure 1 It is a schematic diagram of the overall structure of the concrete beam reinforcement casting mold provided by an embodiment of the present invention after being installed on the concrete beam; Figure 2 It is a schematic diagram of the overall structure of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Figure 3 is a cross-sectional view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention after being installed on a concrete beam; Figure 4 is a cross-sectional view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Figure 5 is a side view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention after being installed on a concrete beam; Figure 6 It is a side view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention.

[0046] like Figures 1 to 6 As shown, an embodiment of the present invention provides a concrete beam reinforcement casting mold, by installing a casting mold 2 on a concrete beam 1 and then casting, a new reinforcement area 11 is formed under the original concrete beam 1, thereby achieving reinforcement of the original concrete beam 1.

[0047] like Figures 2 to 6 As shown, the casting mold 2 includes a modular base plate 21, a forming template assembly 22 and an anchor 23. One end of the anchor 23 is fixedly installed at the bottom of the concrete beam 1, and the other end extends to the outside of the concrete beam. The modular base plate 21 is detachably connected to the concrete beam 1 through the anchor 23. The forming template assembly 22 includes a cover plate 221 arranged at both ends of the modular base plate 21 and a first support member 222 between the two cover plates 221. When the casting mold 2 is installed on the concrete beam 1, the forming template assembly 22 and the bottom end surface of the concrete beam 1 form a forming cavity 24. The forming cavity 24 is used to store slurry and limit the forming shape of the slurry. One end of the anchor 23 is located in the forming cavity 24.

[0048] After pouring concrete or other reinforcing slurry into the forming cavity 24, the new concrete slurry solidifies and forms a reinforcement area 11. The reinforcement area 11 is bonded to the original concrete beam 1 to reinforce it, and the reinforcement area 11 and the concrete beam 1 are connected by anchor nails, which can effectively improve the connection strength between the reinforcement area 11 and the concrete beam 1, thereby improving the reinforcement effect of the concrete beam 1.

[0049] In addition, Figure 3 In the illustrated embodiment, the casting mold 2 is mounted on the concrete beam 1 by means of anchors 23. In some other embodiments, the casting mold 2 may also be mounted on the concrete beam 1 by means of other mounting structures. For example, an additional mounting structure is provided on the modular base plate 21 for detachable connection with the concrete beam 1, and so on. The connection method between the modular base plate 21 and the concrete beam 1 may be adaptively adjusted according to actual construction requirements. As long as the modular base plate 21 can remain stable during the casting and forming stage to facilitate the forming of the reinforcement area 11, and the modular base plate 21 can be smoothly removed from the concrete beam 1 during subsequent demolding, it will not be elaborated here.

[0050] like Figure 2 and Figure 3 As shown, the forming cavity 24 is provided with a pouring port 25, which is located on a side of the forming cavity 24 away from the first support member, and grout can be poured into the forming cavity 24 through the pouring port 25; Figure 2 In the illustrated embodiment, the end faces of the modular base plate 21, the two closing plates 221 and the first support member 222 form four sides of a cuboid. When the casting mold 2 is installed on the concrete beam 1, they form five sides of a cuboid together with the bottom end faces of the concrete beam 1, forming a single-sided open rectangular chamber forming cavity 24, and the opening is the pouring port 25.

[0051] In some other embodiments, grouting may be performed into the forming cavity 24 in other ways. For example, a hole may be opened in the first support member or the sealing plate for grouting, and the hole may be closed after the grouting is completed, and so on.

[0052] In addition, the anchor 23 is located at one end of the concrete beam 1, and can be fixedly connected to the concrete beam 1 by the principle of expansion bolts, or can be fixedly connected to the concrete beam 1 by other methods, as long as the connection strength between the anchor 23 and the concrete beam 1 can be guaranteed;

[0053] The modular base plate 21 and various parts of the forming template assembly 22 in the casting mold 2 can be made of aluminum alloy. The aluminum alloy plate has high strength and can withstand the pressure during concrete pouring. The aluminum alloy plate is corrosion-resistant, wear-resistant, and has a long service life. After the reinforcement construction is completed, the casting mold 2 can be reused after being dismantled, which reduces costs. The aluminum alloy plate is easier to maintain a high processing accuracy during production and preparation, so that the mold can be installed on the concrete beam 1 with higher accuracy, and the accuracy and quality of the formed reinforcement area 11 can be guaranteed. It should be noted that in actual use, the casting mold 2 can also be prepared with other suitable materials, which will not be described here.

[0054] like Figures 2 to 6As shown, in one preferred embodiment, an edge of the modular bottom plate 21 away from the first support member 222 is folded toward the forming cavity 24 to form a bending section 211. When the modular bottom plate 21 is installed on the concrete beam 1, the top height of the bending section 211 is higher than the bottom end surface of the concrete beam 1, and the pouring port 25 is formed by the gap between the bending section 211 and the wall surface of the concrete beam 1;

[0055] like Figure 3 As shown, the pouring port 25 is the triangular area formed by the gap between the right bending section 211 and the wall of the concrete beam 1. In this way, grouting can be poured into the forming cavity 24 until the horizontal plane of the grout is slightly higher than the bottom end surface of the concrete beam 1, ensuring that the grout in the forming cavity 24 can be filled and that the grout can maintain contact with the bottom end surface of the concrete beam 1 upward, which can improve the integrity of the reinforced area 11 after forming with the concrete beam 1.

[0056] Furthermore, the bending section 211 may be as follows Figures 2 to 6 The straight-edge shape shown in the figure has a folding angle of 45 to 60 degrees at the bending section 211. At this time, the end face shape of the sealing plate 221 is a right-angled trapezoid, so that the end face on one side close to the bending section 211 can fit with the modular base plate 21 and the bending section 211; in some other embodiments, the bending section 211 can also be an arc-shaped curved edge shape, as long as its top end face is slightly higher than the bottom end face of the concrete beam so that grouting can be smoothly achieved, which will not be elaborated here.

[0057] like Figure 2 and Figure 3 As shown, in one preferred embodiment, the forming template assembly 22 further includes a second support member 223, which is detachably installed between the two sealing plates 221. When the second support member 223 is installed on the modular base plate 21, the pouring port 25 can be closed, so that the forming cavity 24 becomes a closed cavity;

[0058] When the casting mold 2 is installed on the concrete beam 1, the second support member 223 needs to be removed first. After the grouting is completed in the forming cavity 24, the second support member 223 is installed on the modular base plate 21 to close the forming cavity 24. The second support member 223 can form a complete rectangular cavity with the above-mentioned single-sided open rectangular cavity, which can maintain the formed shape of the slurry, so that the shape of the reinforced area 11 after forming is the same as the shape of the original concrete beam 1, avoiding Figure 3 The slurry in the triangular area at the pouring port 25 shown in the figure is formed into one piece with the slurry in the reinforcement area 11 , and can prevent external foreign matter from entering the forming cavity 24 and affecting the forming quality of the reinforcement area 11 .

[0059] like Figures 3 to 6As shown, in one preferred embodiment, after the modular base plate is installed on the concrete beam 1, the top heights of the first support member 222 and the second support member 223 are both higher than the bottom end surface height of the concrete beam 1, and the first support member 222 and the second support member 223 are respectively attached to the two opposite surfaces of the concrete beam 1;

[0060] When the casting mold 2 is installed on the concrete beam 1, the end surface of the first support member 222 can be used as a limiting structure to make the end surface of the first support member 222 fit with the end surface of the concrete beam 1 (such as Figure 3 As shown, it is the left end face of the concrete beam 1). After the grouting is completed, the second support member 223 is installed, and the end face of the second support member 223 is fitted with the end face of the concrete beam 1 (i.e. Figure 3 The right end face of the concrete beam 1 in the middle), in this way, through the contact and cooperation between the two support members and the concrete beam 1, the stability of the installation of the casting mold 2 and the concrete beam 1 and the forming shape of the reinforcement area 11 can be ensured;

[0061] Further, such as Figure 1 and Figure 2 As shown, in this embodiment, the sealing plate 221 is directly fitted with the bottom end surface of the concrete beam 1, so the height of the sealing plate 221 is the height of the forming cavity 24 and the height of the reinforcement area 11. The height of the sealing plate 221 can be adaptively adjusted according to actual construction requirements to improve the construction quality.

[0062] Figure 7 is a bottom view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Figure 8 is a top view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention after being installed on a concrete beam; Fig. 9 is a top view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Fig.10 It is a partial view of a concrete beam reinforcement casting mold provided by an embodiment of the present invention.

[0063] like Figures 7 to 10 As shown, in one preferred embodiment, the forming template assembly 22 further includes a first restraining support 2221 and a second restraining support 2231 mounted on the modular base plate. Figure 8 and Fig.10As shown, the first restraining support 2221 is installed on the modular base plate 21 at one side of the first support member 222, and the second restraining support 2231 is installed between the bending section 211 of the modular base plate 21 and the second support member 223. The first restraining support 2221 and the second restraining support 2231 are used to restrain the first support member 222 and the second support member 223 respectively, so that the first support member 222 and the second support member 223 are close to the concrete beam 1, thereby improving the contact force between the first support member 222 and the second support member 223;

[0064] In some usage scenarios, the casting mold 2 is inevitably affected by external forces during the slurry forming process. By setting a constraint support, the stability of the installation of the casting mold 2 and the concrete beam 1 can be ensured, and the forming shape of the reinforcement area 11 can be guaranteed.

[0065] like Figure 7 As shown, the forming template assembly 22 also includes a constraint plate 224, which is spaced apart on the side of the modular bottom plate 21 away from the concrete beam 1, and at least two of the constraint plates 224 are located at a position opposite to the sealing plate 221 (at Figure 7 The left and right sides of the modular bottom plate 21 are provided in the middle. By providing the restraining plate 224, the stability of the sealing plate 221 installed on the modular bottom plate 21 can be improved, and the sealing plate 221 can be prevented from being skewed or other undesirable conditions, thereby ensuring the formed shape of the reinforcement area 11;

[0066] In addition, if Fig.10 As shown, a third constraint support 2232 is arranged between the constraint plate 224 and the bending section 211, and the setting position of the third constraint support 2232 and the bending section 211 corresponds to the second constraint support 2231, so that the side of the second support member 223 away from the concrete beam 1 is supported by the second constraint support 2231, the bending section 211, the third constraint support 2232 and the constraint plate 224, which can further improve the stability of the second support member 223.

[0067] Among them, the first constraint support 2221, the second constraint support 2231 and the third constraint support 2232 can be made of wood material, so that the constraint support has a certain deformation ability. When performing size design and assembling the casting mold, the first constraint support 2221 can be supported between the modular base plate 21 and the first support member 222 by interference fit, and the second constraint support 2231 can be inserted between the bending section 211 and the second support member 223 by interference fit, and the third constraint support 2232 can be inserted between the bending section 221 and the constraint plate 224, so as to improve the fit between the constraint support and the structure cooperating with it and improve its support effect.

[0068] The first constraint support 2221, the second constraint support 2231 and the third constraint support 2232 can also be made of other materials, such as rubber, etc., so that after the second constraint support 2231 and the third constraint support 2232 are inserted between the bending section 211 and the second support member 223 and the constraint plate 224, they can provide better support therefor. The specific material of the constraint support can be adjusted accordingly according to actual needs, which will not be elaborated here.

[0069] Furthermore, when the second restraining support 2231 and the third restraining support 2232 are made of wood or other materials, no mechanical connection structure may be provided between the second support member 223 and the modular base plate 21. The second support member 223 is pressed against the side of the concrete beam 1 only by the squeezing force of the restraining plate 224, the third restraining support 2232, the bending section 211 and the second restraining support 2231. This can keep the second support member 223 in a relatively stable state, and greatly improve the convenience of demolding during subsequent demolding.

[0070] Specifically, in the actual production process, due to the limitations of machining accuracy and mechanical deformation of each template, the forming cavity 224 cannot be completely closed, and the concrete slurry will leak from the gaps between the templates or the gaps such as the openings of the installation holes. After the leaked concrete solidifies, the templates will be bonded together, and the screws in the installation holes will also bond with the corresponding installation holes and threaded holes, which will have a great impact on the efficiency of template removal. The second constraint support 2231 and the third constraint support 2232 made of wood material have the characteristics of being able to separate concrete slurry to a certain extent, so that the wooden surface is not easy to bond with the surface of the template. Therefore, when removing the template, the second constraint support 2231 and the third constraint support 2232 can be taken out first, and then the second support member 223 can be removed, thereby removing other templates, which can improve the efficiency of demolding and the convenience of use.

[0071] Fig.11 is a structural schematic diagram of a first modular unit of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Fig.12 is a structural schematic diagram of a second modular unit of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Fig.13 is a structural schematic diagram of a first modular bottom plate of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Fig.14 is a structural schematic diagram of a first restraining plate of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Fig.15 is a structural schematic diagram of a second restraining plate of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Fig.16It is a structural schematic diagram of a sealing plate of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Fig.17 is a structural schematic diagram of a first constraint support of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Fig.18 is a structural schematic diagram of a second constraint support of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Fig.19 It is a schematic structural diagram of an anchor nail of a concrete beam reinforcement casting mold provided by an embodiment of the present invention; Fig. 20 It is a schematic structural diagram of a first support member and a second support member of a concrete beam reinforcement casting mold provided in an embodiment of the present invention.

[0072] like Figure 2 and Fig.19 As shown, in one of the preferred embodiments, the anchor 23 includes an anchoring section 231 and a mounting section 232, the anchoring section 231 is used to be fixedly connected to the concrete beam 1, the mounting section 232 is provided with an external thread, and a mounting hole 212 is opened on the modular base plate 21. When the modular base plate 21 is installed on the concrete beam, the mounting section 232 of the anchor can pass through the mounting hole 212. After the fastening nut is installed on the mounting section 232, the fastening nut can apply an upward fastening force along the axis of the anchor 23 to the modular base plate 21, so that the top end surface of the sealing plate 221 is close to the concrete beam 1, which can improve the stability of the casting mold 2 installed on the concrete beam 1 and improve the airtightness of the forming cavity 24.

[0073] In some other embodiments, the installation section 232 of the anchor and the modular base plate 21 may also be installed in other ways, such as welding, clamping, etc., which will not be described in detail here.

[0074] like Figures 11 to 13 As shown, in one preferred embodiment, the modular base plate 21 is divided into first modular base plates 2101 located at both ends and at least one second modular base plate 2102 located in the middle, the first modular base plate 2101 and the second modular base plate 2102 are both provided with a first support member, and a sealing plate 221 is provided on the side of the two first modular base plates 2101 away from each other;

[0075] like Fig.11 and Fig.12As shown, the first modular base plate 2101 and the second modular base plate 2102 are both provided with a bending section 211, the first modular base plate 2101 and the sealing plate 221 and the first support member 222 installed thereon together constitute a first modular unit, the second modular base plate 2102 and the first support member 222 installed thereon together constitute a second modular unit, and a plurality of units are spliced ​​together to form a casting mold 2, so that the total length of the casting mold 2 is determined by the number of the second modular units in the middle, and the number of the second modular units in the middle can be flexibly adjusted according to the length of the concrete beam 1 to be repaired, thereby flexibly adjusting the total length of the casting mold 2 so that it can adapt to the concrete beam 1 to be repaired, thereby improving applicability.

[0076] For example, in one specific embodiment, the length direction of the concrete beam is taken as the first direction (i.e. Figure 7 In the left and right directions), the length of the first modular unit in the first direction is 1000mm, the length of the second modular unit in the first direction is 1000mm, and the length of the concrete beam 1 to be reinforced is 4000mm. A first modular unit is arranged at each end of the casting mold 2, and two second modular units are arranged in the middle.

[0077] In addition, in one of the preferred embodiments, the difference between the first modular base plate 2101 and the second modular base plate 2102 lies in whether structures such as holes for installing the sealing plate 221 are provided, and the difference between the first modular unit and the second modular unit lies in whether the sealing plate 221 is installed. In this way, it is easier to produce various components of the first modular base plate, the second modular base plate and the forming template assembly, thereby improving the versatility of each component.

[0078] like Figures 13 to 20 As shown, the restraining plate 224 is divided into a first restraining plate 2241 located at both ends corresponding to the sealing plate 221 and a second restraining plate 2242 located in the middle;

[0079] The first modular bottom plate 2101 is provided with a hole a1, a hole b1, a hole c1 and a hole d1, the second modular bottom plate 2102 is provided with a hole a1, a hole b1 and a hole d1 (not shown in the figure), the first constraint plate 2241 is provided with a hole b2, a hole c2 and a hole d2, the second constraint plate 2242 is provided with a hole a2, a hole b2 and a hole d2, and the holes provided on the first modular bottom plate 2101, the second modular bottom plate 2102, the first constraint plate 2241 and the second constraint plate 2242 are all through holes;

[0080] The hole a1 (i.e. the mounting hole 212) is used for the insertion and installation of the anchor 23;

[0081] The hole c3 at the bottom of the sealing plate 221 is a threaded hole. After screws are inserted through the holes c1 and c2, the sealing plate 221, the first modular bottom plate 2101 and the first restraining plate 2241 are connected;

[0082] The first support member 222 and the second support member 223 are also provided with threaded holes b3 (not shown in the figure) at the bottom, and screws are inserted through the holes b1 and b2 to connect the first support member 222 (or the second support member 223), the first modular bottom plate 2101 (or the second modular bottom plate 2102) and the first restraining plate 2241 (or the second restraining plate 2242);

[0083] The hole d3 at the bottom of the first constraint support 2221 is a threaded hole, and screws are inserted through the holes d1 and d2 to connect the first constraint support 2221, the first modular bottom plate 2101 (or the second modular bottom plate 2102), and the first constraint plate 2241 (or the second constraint plate 2242);

[0084] The above embodiment shows one specific connection and installation method of the casting mold of the present invention. In some other embodiments, other existing connection methods can also be adopted according to actual needs, which will not be described in detail here.

[0085] In one preferred embodiment, a plurality of holes b1 and holes d1 can be arranged in parallel on the first modular base plate 2101 (or the second modular base plate 2102), so that the installation positions of the first support member 222 and the second support member 223 on the base plate can be adjusted. In this way, the spacing between the first support member 222 and the second support member 223 can be adjusted, so that it can be applied to various concrete beams 1. The holes b1 and holes d1 can also be set as long slot holes, and the extension direction of the long slot holes is the thickness direction of the concrete beam (i.e. Figure 3 In the left and right directions), and the hole b2 and the hole d2 are adaptively adjusted, so that the adjustment of the spacing between the first support member 222 and the second support member 223 is more flexible. According to the specific sizes of various concrete beams 1, the first support member 222 and the second support member 223 can be formed as follows: Figure 2 The state shown in which the two surfaces of the concrete beam 1 are adhered to improve the applicability of the casting mold.

[0086] In addition, in one specific embodiment, the length direction of the concrete beam is taken as the first direction (i.e. Figure 7 The left and right directions in the figure), the thickness direction of the concrete beam is the second direction (i.e. Figure 3The first modular bottom plate 2101 has four holes a1, eight holes b1, and four holes c1. The hole diameter of hole d1 is exactly the same as that of hole b1. The holes a1 and holes b1 arranged along the second direction form a hole row. Each hole row includes two holes a1 and four holes b1. Each first modular bottom plate 2101 is provided with two groups of hole rows arranged at intervals along the first direction.

[0087] The spacing between the two hole rows in the first direction is 500 mm, the spacing between each hole row and the edge of the first modular bottom plate 2101 to which it is adjacent is 200 mm, the spacing between the two holes a1 in the second direction is 150 mm, the spacing between the two holes b1 in the second direction is 50 mm, the holes c1 are arranged at intervals along the second direction at an edge of the first modular bottom plate 2101 along the first direction, and the spacing between the two holes c1 along the second direction is 200 mm;

[0088] The second modular bottom plate 2102 is provided with four holes a1 and six holes b1. The diameter of hole d1 is exactly the same as that of hole b1. The holes a1 and holes b1 arranged along the second direction form a hole row. Each hole row includes two holes a1 and three holes b1. The distance between the two hole rows in the first direction is 500 mm. The distance between each hole row and the edge of the second modular bottom plate 2102 to which it is adjacent is 200 mm. The distance between the two holes a1 in the second direction is 150 mm. The distance between the two holes b1 in the second direction is 50 mm.

[0089] The second constraint plate 2242 is provided with two holes a2 and four holes b2 (i.e., holes d2, the diameter of which is exactly the same as that of the holes b2), the centers of the two holes a2 and the four holes b2 are all located on the midline of the second constraint plate 2242 along the first direction, the length of the second constraint plate along the first direction is 100 mm, three holes b2 are arranged at one end of the second constraint plate 2242, the spacing of the three holes b2 at the end in the second direction is 50 mm, another hole b2 is located at the other end of the second constraint plate 2242, the spacing of the holes a2 along the second direction is 50 mm;

[0090] The first constraint plate 2241 is provided with four holes b2 (i.e., holes d2, the diameter of which is exactly the same as that of holes b2) and four holes c2, wherein three holes b2 are arranged at one end of the first constraint plate 2241, and the spacing of the three holes b2 at this end in the second direction is 50 mm, and the other hole b2 is located at the other end of the first constraint plate 2241, and the spacing of the holes c2 along the second direction is 200 mm;

[0091] The spacing of the holes c3 opened on the sealing plate in the second direction is 200 mm, and the spacing of the threaded holes b3 opened on the first support member 222 and the second support member 223 in the first direction is 500 mm; the hole d3 opened on the first restraining support 2221 is exactly the same as the hole b3;

[0092] Through the above settings, holes a1 and a2 are aligned with the center of the anchor, holes b1 and b2 are aligned with hole b3, holes c1 and c2 are aligned with hole c3, and hole d3 is also aligned with the corresponding holes b1 and b2. Holes a1, a2, b1, b2, c1 and c2 are all through holes, and holes b3 and c3 are threaded holes. Screws are inserted into holes c3 through holes c1 and c2 to connect the sealing plate 221, the first modular base plate 2101 and the first constraint plate 2241; screws are inserted into hole b3 (d3) through holes b1 and b2 to connect the first support member 222 (or the second support member 223, or the first constraint support), the first modular base plate 2101 (or the second modular base plate 2102) and the first constraint plate 2241 (or the second constraint plate 2242).

[0093] In addition, an embodiment of the present invention further provides a concrete beam reinforcement construction method, comprising:

[0094] S1: Prepare and assemble modular base plates and forming formwork components;

[0095] S2: Open an anchor hole at the bottom of the concrete beam to be reinforced, and install the anchor section of the anchor in the anchor hole;

[0096] S3: installing the modular base plate and the forming template assembly on the concrete beam through the installation section of the anchor nail, so that the casting mold and the concrete beam form a forming cavity;

[0097] S4: pouring slurry into the forming cavity;

[0098] S5: Let it stand for a while until the slurry solidifies and takes shape, then remove the casting mold.

[0099] Furthermore, the construction method further includes between step S1 and step S2:

[0100] S11: According to the height of the reinforcement section, the first modular base plate and the second modular base plate are processed and bent at one side, and the angle between the bending section and the reinforcement section is between 45 degrees and 60 degrees, and the projection height of the bending section needs to be higher than the height of the reinforcement section;

[0101] S12: according to the length of the existing damaged concrete beam, configure a suitable modular length, set the first modular bottom plate at the two end positions of the bottom of the existing damaged concrete beam, and set the second modular bottom plate at the middle position of the bottom of the existing damaged concrete beam;

[0102] Also included between step S4 and step S5:

[0103] S41: After pouring is completed, a second support member is installed at the pouring port, and a second constraint support is provided between the second support member and the bending section; and a third constraint support is provided between the bending section and the support plate;

[0104] The concrete beam 1 is reinforced by the above method, which improves the construction efficiency of the concrete beam 1 reinforcement, shortens the construction period, and the casting mold can be removed from the concrete beam after removing the fastening nut of the anchor installation section during subsequent demolding, and the demolding process is also simpler.

[0105] In addition, since the casting mold provided in the embodiment of the present invention includes structures such as the first support member 222, the second support member 223, the first constraint support 2221, and the second constraint support 2231, and the modular base plate 21 and the forming template assembly 22 are firmly installed on the concrete beam 1 through the anchor nails 24, so that the forming cavity 24 surrounded by the forming template assembly 22 and the bottom end surface of the concrete beam 1 has a strong stability, therefore, in the slurry pouring step, an expansion agent such as calcium sulfoaluminate, magnesium oxide, etc. can be appropriately added to the slurry, so that the volume of the slurry increases slightly during the solidification process, thereby making the structure of the formed reinforcement area 11 denser, and the bonding force between the reinforcement area 11 and the concrete beam 1 is stronger, which can improve the reinforcement effect of the concrete beam 1.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that any modification or equivalent replacement of the technical solutions of the present invention does not depart from the spirit and scope of the technical solutions of the present invention and should be included in the scope of the claims of the present invention.

Claims

1. A concrete beam reinforcement casting mold, characterized in that: include: A modular base plate that can be removably installed at the bottom of the concrete beam; A forming template assembly, the forming template assembly comprising sealing plates arranged at opposite ends of the modular base plate, and a first support member between the two sealing plates, wherein the sealing plates and the first support member enclose a forming cavity, and the forming cavity is used to store slurry and limit a forming shape of the slurry; An anchor, one end of which can be fixedly installed on the concrete beam, and after the anchor is installed on the concrete beam, the other end of the anchor extends into the forming cavity.

2. The concrete beam reinforcement casting mold according to claim 1, characterized in that: The forming cavity is provided with a pouring port for pouring grout into the forming cavity, and the pouring port is located at a side of the forming cavity away from the first supporting member.

3. The concrete beam reinforcement casting mold according to claim 2, characterized in that: An edge of the modular base plate away from the first support member is folded toward the forming cavity to form a bending section. When the modular base plate is installed on the concrete beam, the top height of the bending section is higher than the bottom end surface of the concrete beam, and the pouring port is formed by the gap between the bending section and the wall surface of the concrete beam; the end surface of the sealing plate on one side of the bending section is in contact and cooperate with the wall surface of the bending section.

4. The concrete beam reinforcement casting mold according to claim 2, characterized in that: The forming template assembly also includes a second support member, which is detachably mounted between the two sealing plates on the modular base plate. When the second support member is mounted on the modular base plate, it can close the pouring port to make the forming cavity a closed chamber.

5. The concrete beam reinforcement casting mold according to claim 4, characterized in that: When the modular base plate is installed on the concrete beam, the tops of the first support member and the second support member are higher than the bottom end surface of the concrete beam, and the first support member and the second support member are respectively in contact with the two opposite surfaces of the concrete beam.

6. The concrete beam reinforcement casting mold according to claim 5, characterized in that: The forming template assembly also includes a first restraining support and a second restraining support installed on the modular base plate, which are respectively used to restrain the first support member and the second support member so that the first support member and the second support member are close to the concrete beam.

7. The concrete beam reinforcement casting mold according to claim 1, characterized in that: It also includes restraining plates, which are arranged at intervals on a side of the modular base plate away from the concrete beam, and at least two of the restraining plates are located opposite to the sealing plate.

8. The concrete beam reinforcement casting mold according to claim 1, characterized in that: The modular base plate is provided with a mounting hole. When the template base plate is installed on the concrete beam, the mounting section of the anchor passes through the mounting hole. The mounting section is provided with an external thread for installing a fastening nut.

9. The concrete beam reinforcement casting mold according to claim 1, characterized in that: The modular base plate is divided into a first modular base plate located at both ends and at least one second modular base plate located in the middle. The first supporting member is disposed on both the first modular base plate and the second modular base plate, and the sealing plate is disposed on both ends of the two first modular base plates which are away from each other.

10. A method for reinforcing a concrete beam using the concrete beam reinforcement casting mold according to any one of claims 1 to 9, characterized in that: The method comprises: preparing and assembling modular base plates and forming formwork assemblies; An anchor hole is opened at the bottom of the concrete beam to be reinforced, and one end of the anchor is fixedly installed in the anchor hole; Installing the modular base plate and the forming formwork assembly on the concrete beam so that the casting mold and the concrete beam enclose a forming cavity; pouring slurry into the forming cavity; Let it stand and remove the casting mold after the slurry solidifies.

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