Mould for producing prefabricated beams with section steel joints and its installation method

Abstract

The present invention provides a mold for producing prefabricated beams with steel joints and an installation method thereof, which belong to the field of construction and include a support; a side mold, which is detachably arranged on the support; a positioning fixture, which is detachably mounted on the support and is used to limit the position of the prefabricated beam steel joint; a plurality of fixed magnetic boxes, which are magnetically connected to the support and are respectively used to clamp the side mold and the positioning fixture. The present invention adjusts and fixes the steel joints at both ends of the prefabricated beam during the production process; the steel joint positioning fixture, the side mold, and the side mold reinforcement fixture can all be flexibly adjusted in position, are suitable for the production of prefabricated beam components with steel joints of different specifications, and can be reused; the steel joint positioning fixture, the side mold, and the side mold reinforcement fixture are easy to install and remove, and can be applied to a prestressed production line to carry out prestressed production of steel structure beam components.

Description

Technical Field

[0001] The present invention relates to the field of construction, in particular to a mould for producing a prefabricated beam with a section steel joint and an installation method. Background Art

[0002] Beams are components that primarily withstand lateral and shear forces, with bending as their primary deformation. They support the entire weight of the building's superstructure and the roof, making them the most crucial component of the structure. Beams have different names depending on their specific location, shape, and function. Most beams are oriented in the same direction as the building's cross-section.

[0003] The components used in prefabricated buildings are primarily prefabricated in factories and assembled on-site using reliable connection methods. Existing prefabricated beam production typically uses custom templates tailored to specific projects and varying dimensions. This results in long customization times, low reuse rates, and high production costs.

[0004] CN108457422A discloses a prefabricated beam component with a steel joint, which includes a concrete composite beam and an inserted H-shaped steel beam at both ends of the prefabricated beam. The beam-column node is connected by bolt welding or bolts, and has the advantages of convenient connection, high safety, and reliable quality.

[0005] This system uses steel node connection, and the precision requirements for steel joint precast beam components are more stringent than those for ordinary precast concrete beam components. If the position error of the steel joints at both ends of the precast beam is too large, the precast components will not be accurately aligned when the beam-column bolt welding connection is made, which increases the construction difficulty and reduces the quality of the node connection. Summary of the Invention

[0006] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide a mold and installation method for the production of prefabricated beams with steel joints, so as to realize the adjustment and fixation of the steel joints at both ends of the prefabricated beams during the production process; the steel joint positioning fixture, side mold, and side mold reinforcement fixture can all be flexibly adjusted in position, suitable for the production of prefabricated beam components with steel joints of different specifications, and can be reused.

[0007] To achieve the above-mentioned and other related purposes, the present invention provides a mold for producing prefabricated beams with section steel joints, comprising:

[0008] Support;

[0009] A side mold is detachably arranged on a support;

[0010] Positioning fixture, installed on the support, used to limit the position of the precast beam steel joint;

[0011] A plurality of fixed magnetic boxes are magnetically connected to the support and are used to clamp the side mold and the positioning fixture respectively.

[0012] In one embodiment, the positioning fixture comprises:

[0013] an end support member mounted on the support;

[0014] A positioning support member connected to the support and the end support member;

[0015] The fixing plate is mounted on the positioning support member and is located on a side surface parallel to a side surface where the end support member is located.

[0016] In one embodiment, the positioning support comprises:

[0017] a base plate, mounted on the support;

[0018] The support frame is arranged in an I-shape and is vertically mounted on the base plate;

[0019] The connecting plate is installed on the supporting frame and is provided with a plurality of vertically arranged bolt holes.

[0020] In one embodiment, it further includes:

[0021] A plurality of supporting diagonal rods, wherein some of the supporting diagonal rods are installed between the base plate and the supporting frame, and the remaining supporting diagonal rods are installed between the end support members and the supporting frame.

[0022] In one embodiment, the plurality of fixed magnetic boxes are respectively clamped with the end support members, the bottom plate or the angle steel of the side form.

[0023] In one embodiment, a plurality of mounting holes are formed on the side wall of the fixing plate, and the fixing plate and the connecting plate are detachably fixedly connected by bolts. The bolts pass through the bolt holes and the mounting holes, and the bolts are staggered.

[0024] In one embodiment, a reinforcement fixture is further included, and the reinforcement fixture includes:

[0025] A plurality of fixing rods are vertically arranged on the outside of the side molds, with a height higher than the side molds, and a through hole is opened on the side wall of the fixing rod, and the through hole is located above the side molds;

[0026] A fastening screw rod is located between the two fixing rods, and both ends of the fastening screw rod respectively pass through the through holes on the two fixing rods, and both ends of the fastening screw rod are also provided with threads;

[0027] The nut is threadedly connected to both ends of the fastening screw and contacts the fixing rod.

[0028] In one embodiment, the through hole is located 20 cm higher than the side mold.

[0029] A mold for producing a prefabricated beam with a steel joint and an installation method thereof, comprising the following steps:

[0030] Step 1: Select a suitable positioning fixture according to the size of the precast beam, install the positioning fixture on the support, and clamp the positioning fixture on the support by fixing the magnetic box;

[0031] Step 2: Bolt the end joint of the precast beam to the fixing plate of the positioning fixture, calibrate the position of the end joint and the fixing plate, and fix the position of the beam end steel joint;

[0032] Step 3: Tie the prefabricated beam reinforcement and weld the reinforcement to the steel section joints;

[0033] Step 4: Determine the position of the side formwork according to the size of the precast beam and connect the side formwork to the support by fixing the magnetic box;

[0034] Step 5: Fix the side mold to the designated position;

[0035] Step 6: Reinforce the side form with reinforcement clamps.

[0036] In one embodiment, the positions of the beam end joints and the fixing plates are corrected by laser.

[0037] As described above, the mold, reinforcement fixture, and installation method for producing prefabricated beams with section steel joints provided by the present invention have the following beneficial effects:

[0038] 1. The mold form for the production of prefabricated beam components has been improved, and molds and fixtures suitable for prefabricated beams with steel joints have been proposed, which solves the problem of difficult positioning of the steel joints at both ends of the prefabricated beams.

[0039] 2. The side formwork and its reinforcement fixtures, as well as the steel joint positioning fixtures are detachable, suitable for the production of prefabricated beam components with steel joints of different specifications. They are reusable, with fast installation and removal speeds and good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 Shown is a schematic diagram of the connection structure of a mold and a clamp for producing prefabricated beams with steel joints proposed by the present invention.

[0041] Figure 2 Shown is a structural schematic diagram of a mold for producing prefabricated beams with steel joints proposed by the present invention.

[0042] Figure 3 Shown is a structural schematic diagram of a positioning fixture for a mold used for manufacturing prefabricated beams with steel joints proposed by the present invention.

[0043] Figure 4Shown is a structural schematic diagram of a positioning support member of a mold for producing prefabricated beams with steel joints proposed by the present invention.

[0044] Figure 5 Shown is a structural schematic diagram of a reinforcement fixture for a mold used for manufacturing prefabricated beams with steel joints proposed by the present invention.

[0045] Figure 6 Shown is a structural schematic diagram of the reinforcement binding of prefabricated beams in a mold for producing prefabricated beams with steel joints proposed by the present invention.

[0046] In the picture:

[0047] 1. Support 2. Side form

[0048] 3. Reinforcement fixture 4 positioning fixture

[0049] 5. Fixed magnetic box 31, fixed rod

[0050] 32. Fastening screw 33. Nut

[0051] 41. End support 42. Positioning support

[0052] 43. Support diagonal rod 44. Fixed plate

[0053] 421, bottom plate 422, support frame

[0054] 423, connecting plate DETAILED DESCRIPTION

[0055] The present invention is further described below with reference to specific examples. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of protection of the present invention.

[0056] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.

[0057] A mold for producing prefabricated beams with section steel joints, comprising:

[0058] Support 1;

[0059] The side mold 2 is detachably arranged on the support 1;

[0060] The positioning fixture 4 is installed on the support 1, close to the end of the side mold 2, and is used to limit the position of the side mold 2;

[0061] A plurality of fixed magnetic boxes 5 are magnetically connected to the support 1 and are used to clamp the side mold 2 and the positioning fixture 4 respectively.

[0062] The production mold includes a bottom mold support 1, a side mold 2 and a reinforcement clamp 3. The bottom mold support 1 and the side mold 2 are both composed of steel molds. The width of the bottom mold support 1 is greater than the commonly used beam width and is welded from C-shaped steel. The side mold 2 and the bottom mold support 1 are magnetically connected through a fixed magnetic box 5, which is clamped on the bottom angle steel of the side mold 2.

[0063] In one embodiment, the positioning fixture 4 includes:

[0064] End support member 41, mounted on support 1;

[0065] Positioning support member 42, connected to support 1 and end support member 41;

[0066] The fixing plate 44 is mounted on the positioning support member 42 and is located on a side surface parallel to the side surface where the end support member 41 is located.

[0067] The steel joint positioning fixture 4 includes an end support 41, a positioning support 42, a supporting diagonal rod 43, and a fixing plate 44; the positioning support 42 includes a base plate 421, an I-beam support, and a connecting plate 423. The I-beam support is welded to the base plate 421 or connected in a fixed manner, and the I-beam support is welded to the connecting plate 423 or connected in a fixed manner. The supporting diagonal rod 43 is welded or connected in other ways between the I-beam and the base plate 421 to increase the stability of the positioning support 42.

[0068] The end support member 41 is welded to the lower portion of the positioning support member 42 or fixedly connected thereto by other means, and is connected to the supporting diagonal rod 43 by welding or other means to form a triangular structure, thereby increasing the overall stability of the positioning fixture 4 .

[0069] In one embodiment, the positioning support member 42 includes:

[0070] Bottom plate 421, mounted on support 1;

[0071] The support frame 422 is configured in an I-shape and is vertically mounted on the base plate 421;

[0072] The connecting plate 423 is mounted on the supporting frame 422 and has a plurality of vertically arranged bolt holes.

[0073] The connecting plate 423 is provided with bolt holes, which are bolted to the fixing plate 44. The fixing plate 44 can be replaced according to the size of the prefabricated beam steel joint.

[0074] In one embodiment, it further includes:

[0075] A plurality of supporting oblique rods 43 , wherein some of the supporting oblique rods 43 are installed between the bottom plate 421 and the supporting frame 422 , and the remaining supporting oblique rods 43 are installed between the end support member 41 and the supporting frame 422 .

[0076] In one embodiment, the plurality of fixed magnetic boxes 5 are respectively clamped with the end support member 41 , the bottom plate 421 or the angle steel of the side mold 2 .

[0077] The steel joint positioning fixture 4 is magnetically connected to the bottom mold support 1 through a fixed magnetic box 5. The fixed magnetic box 5 is directly clamped on the end of the positioning fixture 4 and the bottom plate 421 of the positioning support 42, effectively preventing the positioning fixture 4 from being displaced.

[0078] The steel joint positioning fixture 4 is magnetically connected to the bottom mold support 1 through a fixed magnetic box 5. The fixed magnetic box 5 is directly clamped on the end of the fixture and the bottom plate 421 of the positioning support 42, effectively preventing the fixture from moving.

[0079] In one embodiment, a plurality of mounting holes are provided on the side wall of the fixing plate 44 , and the fixing plate 44 and the connecting plate 423 are detachably fixedly connected by bolts, wherein the bolts pass through the bolt holes and the mounting holes, and the bolts are staggered.

[0080] The fixing plate 44 is provided with universal bolt holes, and is fastened to the web of the prefabricated beam steel joint by 4-6 bolts. The bolts are arranged in a staggered manner to ensure that the connection interface is evenly stressed.

[0081] In one embodiment, a reinforcement fixture 3 is further included, and the reinforcement fixture 3 includes:

[0082] A plurality of fixing rods 31 are vertically arranged on the outside of the side mold 2, with a height higher than the side mold 2, and a through hole is opened on the side wall of the fixing rod 31, and the through hole is located above the side mold 2;

[0083] The fastening screw 32 is located between the two fixing rods 31, and both ends of the fastening screw 32 respectively pass through the through holes on the two fixing rods 31, and both ends of the fastening screw 32 are also provided with threads;

[0084] The nut 33 is threadedly connected to both ends of the fastening screw 32 and contacts the fixing rod 31 .

[0085] In one embodiment, the through hole is located 20 cm higher than the side mold.

[0086] The vertical groove type fixing rod 31 is fixed to the side form 2 by welding. A hole is opened on the upper part of the fixing rod 31, and the hole position is 200mm higher than the side form. The fastening screw 32 passes through this hole and is pulled against the other fixing rod 31. After installation, it is fastened by a nut.

[0087] A method for installing a mold for producing a prefabricated beam with a section steel joint comprises the following steps:

[0088] Step 1: Select a suitable positioning fixture according to the size of the precast beam, install the positioning fixture on the support, and clamp the positioning fixture on the support by fixing the magnetic box;

[0089] Step 2: Bolt the end joint of the precast beam to the fixing plate of the positioning fixture, calibrate the position of the end joint and the fixing plate, and fix the position of the beam end steel joint;

[0090] Step 3: Tie the prefabricated beam reinforcement and weld the reinforcement to the steel section joints;

[0091] Step 4: Determine the position of the side formwork according to the size of the precast beam and connect the side formwork to the support by fixing the magnetic box;

[0092] Step 5: Fix the side mold to the designated position;

[0093] Step 6: Reinforce the side form with reinforcement clamps.

[0094] In one embodiment, the positions of the beam end joints and the fixing plates are corrected by laser.

[0095] In the present invention, when manufacturing a precast beam, a matching fixing plate 44 is first selected based on the dimensions of the precast beam's steel joint web. This is then bolted to the connecting plate 423 to assemble the steel joint positioning fixture 4. Based on the specific length of the beam, the steel joint positioning fixture 4 is positioned on the bottom mold support 1. This fixture is magnetically connected to the bottom mold support 1 via a fixing magnetic box 5, which directly engages the outer end of the end support 41 and the positioning support base plate 421. The precast beam's end joint is bolted to the fixing plate 44, and laser calibration is performed to secure the position of the beam's end steel joint. This is then followed by the binding of the precast beam's reinforcement and welding of the reinforcement and steel joints.

[0096] Next, the precast beam formwork is set up: the side formwork 2 is positioned according to the specific dimensions of the precast beam. A magnetic connection is established between the side formwork 2 and the bottom formwork support 1 via a fixing magnetic box 5, which snaps directly onto the angle steel at the bottom of the side formwork 2, providing positioning and reinforcement. Once the side formwork 2 is secured in place, threaded fastening screws 32 are installed on the vertical slotted fixing rods 31, and nuts 33 are installed to tighten the fastening, reinforcing the side formwork. After the formwork is installed, concrete is poured, and after curing, the formwork can be demolded and disassembled.

[0097] When manufacturing precast beams, the mold format for precast beam components has been improved, and a mold and fixture suitable for precast beams with section steel joints have been developed. This solves the problem of difficult positioning of the section steel joints at both ends of the precast beam. The side mold 2, its reinforcement fixture 3, and the section steel joint positioning fixture 4 are removable, suitable for the production of precast beam components with section steel joints of various specifications. They are reusable, fast to install, easy to dismantle, and economical to manufacture.

[0098] During the production process, the steel joints at both ends of the prefabricated beam are adjusted and fixed; the steel joint positioning fixture 4, the side form 2, and the side form 2 reinforcement fixture 3 can all be flexibly adjusted in position, suitable for the production of prefabricated beam components with steel joints of different specifications, and can be reused.

[0099] The steel joint positioning fixture 4 can accurately position the steel joints at both ends when the prefabricated beam reinforcement is tied, and strictly control the accuracy error of the steel joint prefabricated beam.

[0100] The side formwork 2 and its reinforcement clamp 3, and the steel joint positioning clamp 4 are detachable and reusable, and are easy to transport. They can be transported to the construction site to produce prefabricated beams, realizing nomadic production.

[0101] The bottom mold support 1 and the side mold 2, as well as the bottom mold support 1 and the steel joint positioning fixture 4 are all magnetically connected through a fixed magnetic box 5, and can be applied to a prestressed production line to produce prestressed steel structural beam components.

[0102] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

[0103] In the description herein, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of the embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of the specific details or with other devices, systems, assemblies, methods, components, materials, parts, etc. In other cases, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of the embodiments of the present invention.

[0104] Reference throughout this specification to "one embodiment," "an embodiment," or "a specific embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention, and not necessarily in all embodiments. Thus, various appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics of any specific embodiment of the invention may be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the invention described and illustrated herein are possible in light of the teachings herein and are considered part of the spirit and scope of the invention.

[0105] It should also be understood that one or more of the elements shown in the figures may also be implemented in a more separate or more integrated manner, or even removed because they are inoperable in certain circumstances or provided because they may be useful depending on the application.

[0106] In addition, unless otherwise expressly indicated, any marking arrows in the drawings should be regarded as illustrative only and not limiting. Furthermore, unless otherwise indicated, the term "or" as used herein is generally intended to mean "and / or." Where a term is unclear in providing separation or combination capabilities, the combination of components or steps will also be considered as indicated.

[0107] As used in the description herein and throughout the claims that follow, “a,” “an,” and “the” include plural references unless otherwise indicated. Likewise, as used in the description herein and throughout the claims that follow, the meaning of “in” includes “in” and “on” unless otherwise indicated.

[0108] The above description of the illustrated embodiments of the present invention (including that described in the Abstract) is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. Although specific embodiments of the present invention and examples of the present invention are described herein for illustrative purposes only, as those skilled in the art will recognize and appreciate, various equivalent modifications are possible within the spirit and scope of the present invention. As noted, modifications may be made to the present invention in light of the above description of the illustrated embodiments of the present invention, and such modifications will be within the spirit and scope of the present invention.

[0109] Systems and methods have been generally described herein in detail to facilitate understanding of the present invention. In addition, various specific details have been given to provide an overall understanding of embodiments of the present invention. However, those skilled in the relevant art will recognize that embodiments of the present invention may be practiced without one or more of these specific details, or with other devices, systems, accessories, methods, components, materials, parts, etc. In other cases, well-known structures, materials, and / or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0110] Thus, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are contemplated within the foregoing disclosure, and it should be understood that in some cases, some features of the invention will be employed without the corresponding use of other features without departing from the scope and spirit of the claimed invention. Thus, many modifications may be made to adapt a particular environment or material to the true scope and spirit of the invention. The invention is not intended to be limited to the specific terminology used in the claims below and / or to the specific embodiments disclosed as the best mode contemplated for carrying out the invention, but the invention is intended to include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the invention will be determined solely by the appended claims.

Claims

1. A mold for producing prefabricated beams with section steel joints, characterized by: include: Support (1); A side mold (2) is detachably arranged on the support (1); A reinforcement fixture (3), wherein the reinforcement fixture (3) comprises: A plurality of fixing rods (31) are vertically arranged on the outside of the side mold (2) and are higher than the side mold (2), and a through hole is opened on the side wall of the fixing rod (31), and the through hole is located above the side mold (2); A fastening screw rod (32) is located between the two fixing rods (31), and both ends of the fastening screw rod (32) respectively pass through the through holes on the two fixing rods (31), and both ends of the fastening screw rod (32) are also provided with threads; Nuts (33) are threadedly connected to both ends of the fastening screw (32) and are in contact with the fixing rod (31); A positioning fixture (4) is mounted on the support (1) near the end of the side mold (2) and is used to limit the position of the side mold (2); The positioning fixture (4) comprises: An end support member (41) is mounted on the support (1); A positioning support member (42) connected to the support (1) and the end support member (41); A fixing plate (44) is mounted on the positioning support member (42) and is located on a side parallel to the side where the end support member (41) is located; The fixing plate (44) is provided with universal bolt holes and is fastened to the web of the prefabricated beam steel joint by 4-6 bolts; A plurality of fixed magnetic boxes (5) are magnetically connected to the support (1) and are used to clamp the side mold (2) and the positioning fixture (4) respectively; The plurality of fixed magnetic boxes (5) are respectively clamped with the end support member (41), the bottom plate (421) or the angle steel of the side mold (2).

2. The mold according to claim 1, characterized in that: The positioning support member (42) comprises: A bottom plate (421) is mounted on the support (1); The support frame (422) is arranged in an I-shape and is vertically mounted on the base plate (421); The connecting plate (423) is mounted on the supporting frame (422) and is provided with a plurality of vertically arranged bolt holes.

3. The mold according to claim 2, characterized in that Also includes: A plurality of supporting oblique rods (43), wherein some of the supporting oblique rods (43) are installed between the bottom plate (421) and the supporting frame (422), and the remaining supporting oblique rods (43) are installed between the end support member (41) and the supporting frame (422).

4. The mold according to claim 3, characterized in that: The side wall of the fixing plate (44) is provided with a plurality of mounting holes. The fixing plate (44) and the connecting plate (423) are detachably fixedly connected via bolts. The bolts pass through the bolt holes and the mounting holes, and the bolts are staggered.

5. The mold according to claim 1, characterized in that The through hole is located 20 cm higher than the side mold (2).

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