Bent frame assembly and bent frame system of box girder inner mold

Abstract

The utility model discloses a framed bent assembly and a framed bent system of a box girder inner formwork, and relates to the technical field of box girder construction, the framed bent assembly of the box girder inner formwork comprises two trusses and two connecting rods, the two trusses are transversely arranged in a box girder at intervals, each connecting rod is arranged between the two trusses and detachably connected with the two trusses, and the two connecting rods are connected with the two trusses. When the two trusses are connected through the two connecting rods to form the bent frame assembly, the width of the bent frame assembly is adjusted by adjusting the connecting positions of the two trusses and the connecting rods. According to the bent frame assembly of the box girder inner mold, the two trusses are detachably connected with the connecting rod, the width of the bent frame assembly is adjusted by adjusting the connecting positions of the two trusses and the connecting rod, and a bent frame does not need to be welded and cut again; the width of the framed bent can be adjusted to adapt to the sectional dimension of the box girder, so that the dimension of the framed bent is convenient to adjust, the operation is simple, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of box girder construction, in particular to a rack assembly and a rack system of a box girder inner mold. Background Art

[0002] A box girder is a type of beam used in bridge engineering. It is hollow inside with flanges on both sides of the upper part, hence its name, similar to a box. It is divided into single-box and multiple-box types. Box girders with reinforced concrete structures are divided into prefabricated box girders and cast-in-place box girders. Box girders prefabricated in an independent site can be erected after the completion of the lower project in combination with a bridge-erecting machine, which can speed up the progress of the project and save construction time. Cast-in-place box girders are mostly used in large continuous bridges. Currently in bridge construction, when constructing suspended box girders, it is necessary to set up a construction support as a template at the inner membrane position of the box girder.

[0003] In the prior art, the rack is directly set in the hollow position of the inner membrane of the box beam. However, the existing rack is formed into one piece by welding. When the cross-sectional size of the box beam changes, the width of the rack can only be adjusted by welding and cutting again to adapt to the cross-sectional size of the box beam, which makes it inconvenient to adjust the size of the rack, cumbersome to operate and high cost. Utility Model Content

[0004] The embodiments of the utility model provide a frame assembly and a frame system for the inner mold of a box beam, so as to solve the technical problems in the related art that the existing frames are adjusted in width to adapt to the cross-sectional size of the box beam by re-welding and cutting, resulting in inconvenient frame size adjustment, cumbersome operation and high cost.

[0005] In a first aspect, a bent frame assembly of a box beam inner mold is provided, comprising:

[0006] Two trusses, the two trusses are arranged in the box beam at a transverse interval;

[0007] Two connecting rods, each of which is disposed between the two trusses and is detachably connected thereto;

[0008] When two trusses are connected by two connecting rods to form a rack assembly, the connection position between the two trusses and each connecting rod is adjusted to adjust the width of the rack assembly.

[0009] In some embodiments, each of the trusses comprises:

[0010] a first crossbeam, the first crossbeam being transversely arranged on one side of the box beam;

[0011] A plurality of vertical beams, wherein the plurality of vertical beams are arranged on the first horizontal beam along a vertical direction;

[0012] A plurality of oblique beams, one oblique beam being disposed between every two vertical beams;

[0013] A second cross beam is disposed transversely above the plurality of vertical beams and the plurality of oblique beams.

[0014] In some embodiments, a plurality of first bolt holes are provided at intervals along the horizontal direction at the connection points between the first cross beam and the second cross beam and the connecting rod.

[0015] In some embodiments, each of the connecting rods is provided with a plurality of second bolt holes spaced apart in a horizontal direction and matching with the first bolt holes.

[0016] In some embodiments, the two trusses are connected by the two connecting rods to form a roof shape with a high middle and low ends.

[0017] In some embodiments, there are three vertical beams, and two of the vertical beams have the same length and are longer than the other vertical beam.

[0018] In some embodiments, there are three inclined beams, and two of the inclined beams have the same length and are longer than the other inclined beam.

[0019] In some embodiments, the two trusses and the two connecting rods are made of steel.

[0020] In a second aspect, a box beam inner mold frame system is provided, comprising:

[0021] Two guide beams, the two guide beams are arranged in the box beam at a transverse interval;

[0022] A plurality of the aforementioned rack assemblies are longitudinally spaced apart and arranged on the two guide beams.

[0023] In some embodiments, the bent frame system of the box beam inner mold further includes:

[0024] Two suspension rods, the upper end of one of the suspension rods is connected to the bridge, and the lower end is correspondingly connected to one of the guide beams.

[0025] The beneficial effects brought by the technical solution provided by the utility model include:

[0026] The embodiment of the utility model provides a frame assembly and a frame system for the inner mold of a box girder, wherein the frame assembly of the inner mold of the box girder comprises: two trusses and two connecting rods, wherein the two trusses are arranged in the box girder at a transverse interval, each connecting rod is arranged between the two trusses and is detachably connected thereto, and when the two trusses are connected by the two connecting rods to form a frame assembly, the connection position between the two trusses and each connecting rod is adjusted to adjust the width of the frame assembly. The two trusses of the frame assembly of the inner mold of the box girder of the utility model are detachably connected to the connecting rods, and the width of the frame assembly can be adjusted by adjusting the connection position between the two trusses and each connecting rod, without the need to weld and cut the frame again, so that the width of the frame can be adjusted to adapt to the cross-sectional size of the box girder, making the frame size adjustment convenient, simple to operate, and reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic structural diagram of a bent frame assembly of a box beam inner mold provided by an embodiment of the utility model;

[0029] Figure 2 A schematic diagram of the structure of the rack assembly provided in an embodiment of the utility model;

[0030] Figure 3 A structural schematic diagram of a box beam inner mold rack system provided by an embodiment of the utility model;

[0031] Reference numerals:

[0032] 1. Truss; 11. First crossbeam; 12. Vertical beam; 13. Diagonal beam; 14. Second crossbeam;

[0033] 2. Connecting rod;

[0034] 3. Shelf components;

[0035] 4. Box beam; 41. Inner membrane;

[0036] 5. First bolt hole;

[0037] 6. Second bolt hole;

[0038] 7. Guide beam;

[0039] 8. Lifting rod. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] The embodiment of the utility model provides a frame assembly and a frame system for the inner mold of a box beam, which can solve the technical problems in the related art that the existing frames are adjusted by re-welding and cutting to adapt their width to the cross-sectional size of the box beam, resulting in inconvenient frame size adjustment, cumbersome operation and high cost.

[0042] Figure 1 A frame assembly of a box girder inner mold provided by an embodiment of the utility model comprises: two trusses 1 and two connecting rods 2, the two trusses 1 are arranged in a box girder 4 with a transverse interval, each connecting rod 2 is arranged between the two trusses 1 and is detachably connected thereto, and when the two trusses 1 are connected to form a frame assembly 3 through the two connecting rods 2, the connection position of the two trusses 1 and each connecting rod 2 is adjusted to adjust the width of the frame assembly 3.

[0043] The frame assembly of the box girder inner mold of the utility model embodiment is provided with two trusses and two connecting rods, the two trusses are arranged in the box girder at a transverse interval, each of the connecting rods is arranged between the two trusses and is detachably connected to the two trusses, when the two trusses are connected to form the frame assembly by the two connecting rods, the connection position of the two trusses and each connecting rod is adjusted to adjust the width of the frame assembly, two inner membranes are provided in the middle part of the box girder, each of the inner membranes is correspondingly provided with a frame assembly, and the connection position of the two trusses and each connecting rod is adjusted to adjust the width of the frame assembly in each inner membrane, that is, the two trusses are pulled to both sides respectively to increase the interval between the two trusses, and then the two trusses are used. The connecting rods are respectively connected to the two trusses to fill the gap in the middle. At this time, the two trusses are connected to the positions of each connecting rod near the two ends, thereby extending the width of the two trusses after being connected; the two trusses are respectively pushed toward the middle to reduce the gap between the two trusses, and then the two connecting rods are used to connect to the two trusses to fill the gap in the middle. At this time, the two trusses are connected to the positions of each connecting rod near the middle, thereby shortening the width of the two trusses after being connected. When the cross-sectional size of the box girder changes, this adjustment method can adjust the width of the frame to adapt to the cross-sectional size of the box girder without re-welding and cutting the frame, making the frame size adjustment convenient, simple to operate, and reducing the cost of use.

[0044] As an optional implementation, in a utility model implementation, see Figure 1 As shown, each of the trusses 1 includes: a first cross beam 11, a plurality of vertical beams 12, a plurality of oblique beams 13 and a second cross beam 14, the first cross beam 11 is transversely arranged on one side of the box beam 4, a plurality of vertical beams 12 are arranged on the first cross beam 11 along the vertical direction, one oblique beam 13 is arranged between every two vertical beams 12, the second cross beam 14 is transversely arranged above the plurality of vertical beams 12 and the plurality of oblique beams 13, the first cross beam 11 is transversely arranged on one side of the box beam 4, a plurality of vertical beams 12 are arranged on the first cross beam 11 at intervals and connected thereto by welding, one oblique beam 13 is arranged between every two vertical beams 12 and connected thereto by welding, the second cross beam 14 is connected to the plurality of vertical beams 12 and the plurality of oblique beams 13 by welding, the plurality of vertical beams 12 are used to connect the first cross beam 11 and the second cross beam 14, and the plurality of oblique beams 13 are used to strengthen support and enhance the stability of the truss 1 structure.

[0045] As an optional implementation, in a utility model implementation, see Figure 1As shown, a plurality of first bolt holes 5 are provided at intervals along the horizontal direction at the connection between the first crossbeam 11 and the second crossbeam 14 and the connecting rod 2. By providing the first bolt holes 5, the first crossbeam 11 and the second crossbeam 14 and the connecting rod 2 are detachably connected, that is, the first crossbeam 11 and the second crossbeam 14 and the connecting rod 2 can be fixed and disassembled by using bolts.

[0046] As an optional implementation, in a utility model implementation, see Figure 1 As shown, each of the connecting rods 2 is provided with a plurality of second bolt holes 6 that match the first bolt holes 5 at intervals in the horizontal direction, and one of the second bolt holes 6 corresponds to one of the first bolt holes 5 one by one, and one of the second bolt holes 6 cooperates with one of the first bolt holes 5 to adjust the connection position of the truss 1 and the connecting rod 2. When the two trusses 1 are pulled to both sides respectively, the first bolt holes 5 on the first beams 11 and the second beams 14 of the two trusses 1 coincide with the second bolt holes 6 near the two ends of the correspondingly connected connecting rods 2, and bolts are used to penetrate the first bolt holes 5 and the second bolt holes 6 to fix the truss 1 and the connecting rods 2. Connecting rod 2, when the two trusses 1 are pushed toward the middle respectively, the first bolt holes 5 on the first cross beam 11 and the second cross beam 14 of the two trusses 1 coincide with the second bolt holes 6 near the middle of the correspondingly connected connecting rod 2, and bolts are used to penetrate the first bolt holes 5 and the second bolt holes 6 to fix the truss 1 and the connecting rod 2. After the bolts penetrate the first bolt holes 5 and the second bolt holes 6, steel washers are used on the front and rear sides of the bolts to improve the stiffness of the connection and the overall stability of the rack assembly 3. By using bolts and steel washers for connection and fixing, the width adjustment of the two trusses 1 after connection can be convenient and quick.

[0047] As an optional implementation, in a utility model implementation, see Figure 2 As shown, the two trusses 1 are connected by the two connecting rods 2 to form a roof shape with a high middle and low ends. The roof shape with a high middle and low ends after the two trusses 1 are connected matches the shape of the inner membrane 41 of the box beam 4, which is convenient for setting the frame assembly 3 in the box beam 4 and constructing the inner membrane 41 of the box beam 4.

[0048] As an optional implementation, in a utility model implementation, see Figure 1 and Figure 2As shown, there are three vertical beams 12, and two of the vertical beams 12 have the same length and are longer than the other vertical beam 12, wherein two vertical beams 12 of the same length are arranged at one end of the truss 1 close to the connecting rod 2 in the vertical direction, and the other vertical beam 12 of shorter length is arranged at the end away from the connecting rod 2 in the vertical direction, and the three vertical beams 12 are used to support the first cross beam 11 and the second cross beam 14, so that the end of each truss 1 close to the connecting rod 2 is higher than the end away from the connecting rod 2, and the two trusses 1 are connected by the two connecting rods 2 to form a structure with a high middle and low ends.

[0049] As an optional implementation, in a utility model implementation, see Figure 1 and Figure 2 As shown, there are three oblique beams 13, and two of the oblique beams 13 have the same length and are longer than the other oblique beam 13, wherein the two oblique beams 13 with the same length are arranged between the vertical beams 12 close to the connecting rod 2, and the other oblique beam 13 with a shorter length is arranged between the vertical beams 12 away from the connecting rod 2. The use of the vertical beams 12 with different lengths can adapt to the height changes at both ends of each truss 1, and can also reinforce the first cross beam 11 and the second cross beam 14, thereby effectively increasing the rigidity of each truss 1.

[0050] As an optional implementation, in a utility model implementation, see Figure 1 As shown, the two trusses 1 and the two connecting rods 2 are both made of steel, which has good toughness and plasticity, uniform material, high structural reliability, weldability, heat resistance and good assembly properties.

[0051] The utility model also provides a box beam inner mold rack system, see Figure 3As shown, the frame system of the box beam inner mold includes: two guide beams 7 and a plurality of the aforementioned frame assemblies 3, the two guide beams 7 are transversely spaced in the box beam 4, and a plurality of the frame assemblies 3 are longitudinally spaced on the two guide beams 7, a single guide beam 7 is arranged along the longitudinal direction of the box beam 4, while the two guide beams 7 are parallel and transversely spaced in the box beam 4, the two guide beams 7 form a support in the box beam 4, and a plurality of the frame assemblies 3 are longitudinally spaced on the two guide beams 7, wherein at least one inner membrane 41 is provided in the middle of the box beam 4, and two guide beams 7 and a plurality of the frame assemblies 3 are correspondingly provided in each of the inner membranes 41, a plurality of the frame assemblies 3 are parallelly and spaced and combined with the two guide beams 7 to form a constructed frame system in the inner membrane 41 of the box beam 4, and the width of each of the frame assemblies 3 is adjusted by adjusting the connection between the two trusses 1 and each of the connecting rods 2. The connection position is adjusted, that is, the two trusses 1 are pulled to both sides respectively to increase the interval between the two trusses 1, and then the two connecting rods 2 are used to connect the two trusses 1 to fill the middle interval. At this time, the two trusses 1 are connected to the positions of each connecting rod 2 near the two ends, thereby extending the width of the two trusses 1 after connection; the two trusses 1 are pushed to the middle respectively to reduce the interval between the two trusses 1, and then the two connecting rods 2 are used to connect the two trusses 1 to fill the middle interval. At this time, the two trusses 1 are connected to the positions of each connecting rod 2 near the middle, thereby shortening the width of the two trusses 1 after connection. When the cross-sectional size of the box girder changes, this adjustment method does not require the frame to be welded and cut again, and the width of the frame can be adjusted to adapt to the cross-sectional size of the box girder, making the frame size adjustment convenient, simple to operate, and reducing the cost of use.

[0052] As an optional implementation, in a utility model implementation, see Figure 3 As shown, the frame system of the box girder inner mold also includes: two hangers 8, the upper end of one of the hangers 8 is connected to the bridge, and the lower end is connected to a corresponding guide beam 7, and one of the hangers 8 corresponds to one of the guide beams 7 one by one and is used to fix the guide beams 7, wherein the upper end of one of the hangers 8 is connected to the bridge that has been constructed and cast, and the lower end of the hanger 8 is connected to the corresponding guide beam 7 and fixes the guide beam 7, and the two hangers 8 are used to strengthen the stability of the structure of the two guide beams 7 to prevent the two guide beams 7 from falling.

[0053] In the description of the present utility model, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0054] It should be noted that, in the present utility model, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A bent frame assembly for a box beam inner mold, characterized in that: include: Two trusses (1), the two trusses (1) are arranged in a transverse manner and spaced apart in the box beam (4); Two connecting rods (2), each of the connecting rods (2) being arranged between the two trusses (1) and being detachably connected thereto; When the two trusses (1) are connected via the two connecting rods (2) to form a rack assembly (3), the connection position between the two trusses (1) and each connecting rod (2) is adjusted to adjust the width of the rack assembly (3).

2. The bent frame assembly of the box beam inner mold according to claim 1 is characterized in that: Each of the trusses (1) comprises: A first cross beam (11), the first cross beam (11) being transversely arranged on one side of the box beam (4); A plurality of vertical beams (12), wherein the plurality of vertical beams (12) are arranged on the first horizontal beam (11) along a vertical direction; A plurality of oblique beams (13), wherein one oblique beam (13) is disposed between every two vertical beams (12); A second cross beam (14), wherein the second cross beam (14) is transversely arranged above the plurality of vertical beams (12) and the plurality of oblique beams (13).

3. The bent frame assembly of the box beam inner mold according to claim 2 is characterized in that: A plurality of first bolt holes (5) are provided at intervals along the horizontal direction at the connection points between the first crossbeam (11) and the second crossbeam (14) and the connecting rod (2).

4. The bent frame assembly of the box beam inner mold according to claim 3 is characterized in that: A plurality of second bolt holes (6) matching the first bolt holes (5) are arranged at intervals in the horizontal direction on each of the connecting rods (2).

5. The bent frame assembly of the box beam inner mold according to claim 2, characterized in that: After the two trusses (1) are connected via the two connecting rods (2), they present a roof shape with a high middle and low ends.

6. The bent frame assembly of the box beam inner mold according to claim 5, characterized in that: There are three vertical beams (12), and two of the vertical beams (12) have the same length and are longer than the other vertical beam (12).

7. The bent frame assembly of the box beam inner mold according to claim 6, characterized in that: There are three inclined beams (13), and two of the inclined beams (13) have the same length and are longer than the other inclined beam (13).

8. The bent frame assembly of the box beam inner mold according to claim 1, characterized in that: The two trusses (1) and the two connecting rods (2) are both made of steel.

9. A box girder inner mold rack system, characterized in that: include: Two guide beams (7), the two guide beams (7) being arranged in a transverse manner and spaced apart inside the box beam (4); A plurality of rack assemblies (3) as claimed in claim 1, wherein the plurality of rack assemblies (3) are longitudinally spaced apart on two guide beams (7).

10. The box beam inner formwork bent system according to claim 9, characterized in that: Also includes: Two suspension rods (8), the upper end of one of the suspension rods (8) is connected to the bridge, and the lower end is correspondingly connected to one of the guide beams (7).

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