CN220763024U - Prefabricated box girder template and box girder - Google Patents

Abstract

The utility model discloses a prefabricated box girder template and a box girder, comprising a first module and a second module which are enclosed to form a box body structure, wherein the box body structure is provided with a top surface and a bottom surface which are oppositely arranged; the first module and the second module both comprise an upper sub-module for forming part of the top surface and a lower sub-module for forming part of the bottom surface, the upper sub-module and the lower sub-module are hinged, and the top surface comprises a first top part positioned on the first module and a second top part positioned on the second module; the first module and the second module are provided with a plurality of adjusting structures in an array mode along the length direction, the adjusting structures are used for adjusting the first top and/or the second slope angle relative to the bottom surface, each adjusting structure comprises a first adjusting plate hinged with the upper sub-module and a second adjusting plate hinged with the lower sub-module, at least one first adjusting hole is formed in the first adjusting plate, and at least one second adjusting hole is formed in the second adjusting plate.

Description

Prefabricated box girder template and box girder

Technical Field

The utility model relates to the technical field of building construction, in particular to a prefabricated box girder template and a box girder.

Background

In the bridge structures of the present projects such as highways, municipal projects and the like, the bridge with the middle and small span is mainly a precast box girder bridge. The prefabricated box girder templates are generally adopted for construction, however, the transverse slopes of the prefabricated box girders of the bridge can be changed at the places where the routes such as the mountain area bend and the like are bent, and the transverse slopes of the top plate and the bottom plate of the box girders can not be directly adjusted when the traditional box Liang Gangmo is constructed.

In the prior art, a baffle plate is required to be arranged on the top plate independently when the transverse slope of the top plate is adjusted, and the aim of adjusting the transverse slope is fulfilled by thickening single-side concrete. The bottom plate is not easy during the adjustment of the transverse slope, when the box girder is in a path with a small curve radius, the elevation of the outer box girder needs to be raised to provide enough centripetal force to ensure the driving safety, the conventional method is to heighten the box girder outer side filler stone to realize the ultrahigh arrangement of the bottom plate, the bottom plate is not easy during construction, and simultaneously, the large safety risk exists.

Disclosure of Invention

In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a prefabricated box girder template and a box girder, which can quickly adjust the inclination angle of the top surface or the bottom surface of the box girder template, realize the adjustment of the box girder transverse slope angle, satisfy complex working conditions, simplify the box girder construction, and improve the safety, quality and benefit of the box girder construction.

In a first aspect, the present application provides a prefabricated box girder formwork, including a first module and a second module enclosing to form a box structure, the box structure having a top surface and a bottom surface disposed opposite to each other;

the first module and the second module both comprise an upper sub-module for forming part of the top surface and a lower sub-module for forming part of the bottom surface, the upper sub-module and the lower sub-module are arranged in a hinged manner, and the top surface comprises a first top part positioned on the first module and a second top part positioned on the second module;

the upper sub-module and the lower sub-module are provided with a plurality of adjusting structures in an array along the length direction, the adjusting structures are used for adjusting the gradient angle of the first top and/or the second relative to the bottom surface, wherein,

each adjusting structure comprises a first adjusting plate hinged with the upper sub-module and a second adjusting plate hinged with the lower sub-module, at least one first adjusting hole is formed in the first adjusting plate, at least one second adjusting hole is formed in the second adjusting plate, and the adjusting structure further comprises a connecting piece used for connecting one of the first adjusting holes with one of the second adjusting holes.

Optionally, the first module includes a first upper sub-module for forming the top surface and a first lower sub-module for forming the bottom surface, the second module includes a second upper sub-module for forming the top surface and a second lower sub-module for forming the bottom surface, and the first upper sub-module and the second upper sub-module are fixedly connected through adhesive.

Optionally, the first upper sub-module includes a first joint surface contacting the second upper sub-module, the second upper sub-module includes a second joint surface contacting the first upper sub-module, the first joint surface and the second joint surface are obliquely arranged, and an included angle between the first joint surface and the first top is the same as an included angle between the second joint surface and the second top.

Optionally, the box structure includes a first inner side and a second inner side that are disposed opposite to each other, the first upper sub-module and the first lower sub-module are hinged on the first inner side, and the second upper sub-module and the second lower sub-module are hinged on the second inner side.

Optionally, the first upper sub-module includes a first inclined surface for forming the first inner side surface, and the first upper sub-module includes a second inclined surface for forming the first inner side surface, where the first inclined surface forms an included angle with the second inclined surface.

Optionally, the adjusting structure is disposed along a height direction of the box structure, the first adjusting plate and the second adjusting plate are fixedly connected through two connecting pieces, and each connecting piece is respectively connected with one first adjusting hole and one second adjusting hole.

Optionally, at least one of the two connecting pieces is fixedly connected with the first adjusting plate and the second adjusting plate through a reinforcing plate, and a plurality of connecting pieces arranged in an array along the same direction on the plurality of adjusting structures are fixedly arranged on the same reinforcing plate.

Optionally, the adjustment structure includes with first articulated piece that the submodule piece was articulated on first, first articulated piece with first adjustment board passes through first installed part fixed connection, be provided with on the first articulated piece and be used for first installed part passes first mounting hole, be provided with on the first adjustment board and be used for the second mounting hole that first installed part passed.

Optionally, the adjusting structure includes a second hinge member hinged with the first lower sub-module, and the second hinge member and the second adjusting plate are fixedly connected through a second mounting member; the second hinge member is provided with a third mounting hole for the second mounting member to pass through, and the second adjusting plate is provided with a fourth mounting hole for the second mounting member to pass through.

In a second aspect, the present application provides a box girder formed by prefabricating a box girder formwork as described in any one of the above.

The technical scheme provided by the embodiment of the utility model can comprise the following beneficial effects:

the prefabricated box girder template that provides in this embodiment sets up to two modules that set up relatively through the template structure, every module has the two part structure that sets up to articulated setting, prefabricated box girder module in this application is through four structures of relative activity, when through box girder template casting shaping box girder, the box girder cross slope is formed by the top on controlling two modules respectively, top surface and the bottom surface that drive the box girder template rise or descend through the adjustment structure realization that sets up, and then can adjust the slope angle of top surface for the bottom surface alone, reach the purpose of adjustment box girder cross slope, thereby realize the regulation of box girder template cross slope and improve box girder construction safety, quality, benefit.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural view of a prefabricated box girder formwork according to an embodiment of the present utility model;

FIG. 2 is a front view of a precast box girder template according to an embodiment of the present utility model;

FIG. 3 is a schematic structural diagram of an adjusting structure according to an embodiment of the present utility model;

FIG. 4 is a schematic structural diagram of an adjusting structure according to an embodiment of the present utility model;

FIG. 5 is a schematic view of another precast box girder template according to an embodiment of the present utility model;

fig. 6 is a top view of a prefabricated box girder formwork provided in an embodiment of the present utility model.

In the drawing the view of the figure,

10. a first module; 20. a second module; 30. an upper sub-module; 40. a lower sub-module; 50. adjusting the structure; 60. a movable buckle;

101. a first top; 102. a second top; 103. a first engagement surface; 104. a second engagement surface; 105. a first inclined surface; 106. a second inclined surface; 107. a first sub-side; 108. a first sub-bevel; 109. a second sub-bevel;

110. a top surface; 120. a bottom surface; 130. a hollow region; 140. a first inner side; 150. a second inner side; 160. a first outer side; 170. a second outer side;

210. a first upper sub-module; 220. a first lower sub-module; 230. a second upper sub-module; 240. a second lower sub-module;

510. a first adjustment plate; 520. a second adjusting plate; 530. a first adjustment hole; 540. a second adjustment hole; 550. a connecting piece; 560. a reinforcing plate; 571. a first hinge; 572. a second hinge; 581. a first mounting member; 582. a second mounting member;

610. a first rotating member; 620. a second rotating member; 630. a rotating lever;

100. an inner mold; 200. an outer mold; 300. a support; 310. a bottom die; 320. a side mold; 330. a first support; 340. and a second support.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1-3 in detail, the present application provides a prefabricated girder template, which includes a first module 10 and a second module 20 enclosing to form a box structure, wherein the box structure has a top surface 110 and a bottom surface 120 which are oppositely disposed;

the first module 10 and the second module 20 each comprise an upper sub-module 30 for forming part of the top surface 110 and a lower sub-module 40 for forming part of the bottom surface 120, the upper sub-module 30 and the lower sub-module 40 being hingedly arranged, the top surface 110 comprising a first top 101 on the first module 10 and a second top 102 on the second module 20;

the upper sub-module 30 and the lower sub-module 40 are provided with a plurality of adjustment structures 50 in an array along a length direction, the adjustment structures 50 being used to adjust the slope angle of the first top 101 and/or the second relative to the bottom surface 120, wherein,

each of the adjustment structures 50 includes a first adjustment plate 510 hinged to the upper sub-module 30 and a second adjustment plate 520 hinged to the lower sub-module 40, at least one first adjustment hole 530 is provided on the first adjustment plate 510, at least one second adjustment hole 540 is provided on the second adjustment plate 520, and the adjustment structure 50 further includes a connection member 550 for connecting one of the first adjustment holes 530 and one of the second adjustment holes 540.

The prefabricated box girder template that provides in this embodiment sets up to two modules that set up relatively through the template structure, every module has the two part structure that sets up to articulated setting, prefabricated box girder module in this application is through four structures of relative activity, when through box girder template casting shaping box girder, the box girder cross slope is formed by the top on controlling two modules respectively, top surface 110 and bottom surface 120 that drive the box girder template rise or descend through the adjustment structure 50 that sets up, and then can adjust top surface 110 for bottom surface 120's slope angle alone, reach the purpose of adjustment box girder cross slope, thereby realize the regulation of box girder template cross slope and improve box girder construction safety, quality, benefit.

It may be appreciated that in the embodiment of the present application, the top surface 110 of the box structure may be adjusted, and the bottom surface 120 may also be adjusted through the prefabricated box girder module, which is not limited in the embodiment of the present application, and the top surface 110 of one side may also be adjusted while the bottom surface 120 of the other side may also be adjusted as required, which is not limited in the present application. Exemplary adjustments to top surface 110 are described in embodiments of the present application.

The first module 10 includes a first upper sub-module 210 for forming the top surface 110 and a first lower sub-module 220 for forming the bottom surface 120, the second module 20 includes a second upper sub-module 230 for forming the top surface 110 and a second lower sub-module 240 for forming the bottom surface 120, and the first upper sub-module 210 and the second upper sub-module 230 are fixedly connected by an adhesive. The adhesive may be a foam.

The first upper sub-module 210 is hinged to the first lower sub-module 220, the second upper sub-module 230 is hinged to the second lower sub-module 240, the adjusting structure 50 includes a first adjusting structure disposed on the first module 10 and a second adjusting structure disposed on the second module 20, a first adjusting plate 510 on the first adjusting structure is hinged to the first upper sub-module 210, a second adjusting plate 520 is hinged to the first lower sub-module 220, a first adjusting plate 510 on the second adjusting structure is hinged to the second upper sub-module 230, a second adjusting plate 520 is hinged to the second lower sub-module 240, and the first adjusting structure is used for adjusting and fixing a rotation angle between the first upper sub-module 210 and the first lower sub-module 220 at a hinge position, and the second adjusting structure is used for adjusting and fixing a rotation angle between the second upper sub-module 230 and the second lower sub-module 240 at a hinge position. Illustratively, the cross slope angle of the box girder varies by 0 ° to 15 °.

It can be understood that the adjustment manners of the first module 10 and the second module 20 are not limited in the embodiments of the present application, and are adjusted according to application scenarios and the like in different embodiments. The first module 10 and the second module 20 may respectively adjust two sides of the box structure, and the first module 10 and the second module 20 may simultaneously adjust two sides of the box structure.

Illustratively, the first module 10 is located at the left side of the case structure, the second module 20 is located at the right side of the case structure, the first module 10 (first top portion 101) is used to form the left half top surface 110 of the case structure, the second module 20 (second top portion 102) is used to form the right half top surface 110 of the case structure, and when the left half top surface 110 is adjusted to tilt up from the center, the first adjusting plate 510 is raised with respect to the height of the second adjusting plate 520 and is fixed by the connection 550, so that the first upper sub-module 210 and the first lower sub-module 220 are rotated therebetween to achieve the tilting of the first top portion 101 on the first module 10 by adjusting the positions of the first adjusting hole 530 and the second adjusting hole 540 in the first adjusting structure 50.

In addition, in the embodiment of the present application, the box structure may further adjust the left half top surface 110 to incline downwards from the center, and the first adjusting plate 510 is lowered relative to the second adjusting plate 520 and fixed by the connecting piece 550 by adjusting the positions of the first adjusting hole 530 and the second adjusting hole 540 in the first adjusting structure 50. Meanwhile, the adjustment manner of the second top 102 of the second upper sub-module 230 in the second module 20 may refer to the adjustment manner of the first top 101 in the first module 10, which is not described herein.

The first top 101 and the second top 230 of the first upper sub-module 210 and the second top 102 of the prefabricated box girder template are joined together to form the top surface 110 of the box body structure, wherein the first upper sub-module 210 includes a first joint surface 103 contacting with the second upper sub-module 230, the second upper sub-module 230 includes a second joint surface 104 contacting with the first upper sub-module 210, the first joint surface 103 and the second joint surface 104 are obliquely arranged, and an included angle between the first joint surface 103 and the first top 101 is the same as an included angle (acute angle) between the second joint surface 104 and the second top 102.

The first engagement surface 103 is inclined in the opposite direction to the first top 101 and the second engagement surface 104 is inclined in the opposite direction to the second top 102, that is, when the first die plate and the second die plate are disposed opposite to each other, the first engagement surface 103 and the second engagement surface 104 are disposed opposite to each other. In this embodiment, when the top surface 110 and the bottom surface 120 are parallel, the first joint surface 103 and the second joint surface 104 contact and are mutually attached, and in this application scenario, the first joint surface 103 and the second joint surface 104 are obliquely arranged, so that the sealing connection between the first module 10 and the second module 20 can be achieved without using adhesive. When the top surface 110 and the bottom surface 120 are disposed at an included angle, a gap may exist between the first joint surface 103 and the second joint surface 104, and in this application scenario, after the first module 10 and/or the second module 20 are adjusted at an angle, the first joint surface 103 and the second joint surface 104 may be sealed by using adhesive, so that a closed box structure may be formed, thereby avoiding cement from penetrating into the hollow area 130 of the girder internal mold 100.

It should be noted that, when the first upper sub-module 210 in the first module 10 rotates, the first joint surface 103 in the first upper sub-module 210 rotates along with the rotation of the first upper sub-module 210 and simultaneously rotates relative to the second joint surface 104 of the second upper sub-module 230, and the gap between the first joint surface 103 and the second joint surface 104 may be fixed and sealed by an adhesive, so as to prevent concrete from being poured into the box structure when the box girder is formed.

In this embodiment, the first upper sub-module 210 and the first lower sub-module 220, the second upper sub-module 230 and the second lower sub-module 240 are hinged at the internal position of the box structure, specifically, the box structure has a hollow area 130, the box structure includes a first inner side 140 and a second inner side 150 which are oppositely disposed at the hollow area 130, the first upper sub-module 210 and the first lower sub-module 220 are hinged on the first inner side 140 through a plurality of first movable buckles 60, and the second upper sub-module 230 and the second lower sub-module 240 are also hinged on the second inner side 150 through a plurality of second movable buckles 60.

Illustratively, the first upper sub-module 210 includes a first inclined surface 105 for forming the first inner side surface 140, and the first lower sub-module 220 includes a second inclined surface 106 for forming the first inner side surface 140, and the first inclined surface 105 is disposed at an angle to the second inclined surface 106. The first inclined surface 105 and the second inclined surface 106 are disposed at an included angle, so that an angle between the first upper sub-module 210 and the first lower sub-module 220 is convenient to adjust, for example, when the first top 101 is parallel between the bottom surfaces 120, the included angle between the first inclined surface 105 and the second inclined surface 106 is 110 ° to 120 °. It will be appreciated that the adjustment is made in different embodiments according to the slope angle between the first top 101 and the bottom 120.

As shown in fig. 4, the first movable buckle 60 includes a first rotating member 610 and a second rotating member 620, where the first rotating member 610 may be disposed on the first upper sub-module 210, the second rotating member 620 may be disposed on the second upper sub-module 230, through holes are disposed on the first rotating member 610 and the second rotating member 620, a rotating rod 630 is inserted in the through holes, the rotating rod 630 may enable the first rotating member 610 and the second rotating member 620 to rotate relatively, the first rotating member 610 and the second rotating member 620 are located on the same axis, and by the arrangement of the first movable buckle 60, the first module 10 may be prevented from generating a gap at the hinge position, which affects the sealing effect of the hollow area 130. The second movable buckle 60 may be disposed in a manner similar to that of the first movable buckle 60.

The structure of the first module 10 may be the same as that of the second module 20, and in this embodiment, the first module 10 is taken as an example for description, and the structure of the second module 20 is not described herein.

The box structure comprises a first outer side 160 and a second outer side 170 which are located outside the hollow area 130 and are oppositely arranged, the first upper sub-module 210 comprises a first sub-side 107 used for forming the first outer side 160, and a first sub-inclined plane 108 and a second sub-inclined plane 108 which are located at two ends of the first sub-side 107, the first sub-inclined plane 108 is arranged at one side close to the top surface 110 of the box structure, the second sub-inclined plane 109 is arranged at one side close to the bottom surface 120 of the box structure, and the first sub-inclined plane 108 and the second sub-inclined plane 109 are inclined from the first sub-side 107 to the center of the box structure, so that concrete can be poured into a pouring space between the inner die 100 and the outer die 200 when a box girder is formed conveniently, and the flow of the concrete in the pouring space is improved.

As shown in fig. 5, the prefabricated box girder formwork in the present application includes an outer mold 200 and an inner mold 100 fixed inside the outer mold 200, the inner mold 100 and the outer mold 200 are fixedly connected by a detachable support 300, the outer mold 200 includes a bottom mold 310 positioned at the bottom and side molds 320 positioned at two sides of the inner mold 100, and a casting space is provided between the inner mold 100 and the bottom mold 310 and between the inner mold 100 and the side molds 320; wherein the first module 10 and the second module 20 enclose the inner mold 100. The inner mold 100 may be provided with a supporting hole for fixing the supporting member 300, and in this embodiment of the present application, the number and the setting positions of the supporting member 300 and the supporting hole are not limited, so that the inner mold 100 and the outer mold 200 may be conveniently fixed.

The provision of the first sub-inclined surface 108 and the second sub-inclined surface 109 facilitates the casting of concrete between the inner mould 100 and the outer mould 200 and the flow of concrete from the top surface 110 of the box structure to the bottom surface 120 of the box structure.

The support 300 includes a plurality of first supports 330 supported between the bottom mold 310 and the lower sub-module 40, and a plurality of second supports 340 fixed between the side mold 320 and the upper sub-module 30, and the upper sub-module 30 is provided with connection holes matched with the second supports 340. Wherein the outer layers of the first support 330 and the second support 340 are provided with a release layer for being released from the casting space after the casting space is completely cast.

In this application, the adjusting structure is disposed along the height direction of the box structure, the first adjusting plate 510 and the second adjusting plate 520 are fixedly connected through two connectors 550, and each connector 550 is respectively connected to one first adjusting hole 530 and one second adjusting hole 540.

In this embodiment of the application, a two-point positioning manner is adopted, two connectors 550 are disposed on the first adjusting plate 510 and the second adjusting plate 520, and two ends of the adjusting structure 50 are respectively hinged to the first upper sub-module 210 and the first lower sub-module 220, so that the adjusting structure 50 can always keep being set along the height direction of the box structure when the angle of the first top 101 is adjusted, namely, the first adjusting plate 510 and the second adjusting plate 520 can extend along the vertical direction, the adjustment and the supporting effect on the first module 10 and the second template are realized, the stability of the slope angle after the adjustment of the first top 101 and/or the second top 102 is guaranteed, and the structural strength of the prefabricated box girder template is improved.

The connecting piece 550 may be a bolt, a screw, a pin, etc., in order to facilitate the installation and adjustment of the connecting piece 550, the connecting piece 550 may be a pin, the first adjusting hole 530 and the second adjusting hole 540 are through holes, at least one of the two connecting pieces 550 is fixedly connected with the first adjusting plate 510 and the second adjusting plate 520 through a reinforcing plate 560, and a plurality of connecting pieces 550 arranged in an array along the same direction on the plurality of adjusting structures are fixedly arranged on the same reinforcing plate 560.

The connecting piece 550 can be fastened and connected between the first adjusting plate 510 and the second adjusting plate 520 through the reinforcing plate 560, so that the first adjusting plate 510 and the second adjusting plate 520 are prevented from shaking and the like, and the slope accuracy of the box girder is improved. The reinforcing plate 560 may be a channel steel, and a through hole for the connector 550 to pass through is provided in the reinforcing plate 560.

In this embodiment, the number of the first adjusting holes 530 and the second adjusting holes 540 is not limited, in different embodiments, the corresponding positions of the first adjusting holes 530 and the second adjusting holes 540 are determined according to the adjusting angle range of the top surface 110, the positions of the first adjusting holes 530 and the second adjusting holes 540 are adjusted to adjust the height of the adjusting structure 50, a plurality of first adjusting holes 530 may be disposed on the first hinge 571 based on the difference of the heights of the adjusting structure 50, a plurality of second adjusting holes 540 may be disposed on the second hinge 572, and the inclination angle of the top surface 110 or the bottom surface 120 may be controlled by the collocation of the first adjusting holes 530 and the second adjusting holes 540.

In this embodiment, the box structure that prefabricated roof beam template formed has cavity region 130, first module 10 and second module 20 are followed have certain length in the axis direction of box structure, adjustment structure 50 sets up on cavity region 130, as shown in fig. 6, first module 10 is followed be provided with a plurality of adjustment structures 50 in the axis direction of box structure, every be provided with two connecting pieces 550 on the adjustment structure 50, simultaneously, a plurality of connecting pieces 550 that correspond same high position department can set up on same reinforcing plate 560, guarantee the depth of parallelism of box structure top surface 110, improve the sideslip adjustment precision.

The prefabricated box girder formwork comprises a plurality of first hinges 571 arranged on the first module 10 in an array manner along the length direction of the first module 10 and a plurality of second hinges 572 arranged on the second module 20 in an array manner along the length direction of the second module 20, wherein the plurality of first hinges 571 are used for realizing the hinge connection of the first adjusting plate 510 and the upper sub-module 30; the plurality of second hinges 572 are used to enable the second adjustment plate 520 to hinge with the lower sub-module 40.

The adjusting structure 50 includes a first hinge member 571 hinged to the first upper sub-module 210, the first hinge member 571 and the first adjusting plate 510 are fixedly connected through a first mounting member 581, a first mounting hole for the first mounting member 581 to pass through is provided on the first hinge member 571, and a second mounting hole for the first mounting member 581 to pass through is provided on the first adjusting plate 510.

The adjustment mechanism 50 includes a second hinge member 572 hinged to the first lower sub-module 220, the second hinge member 572 and the second adjustment plate 520 being fixedly coupled by a second mounting member 582; the second hinge member 572 is provided with a third mounting hole for the second mounting member 582 to pass therethrough, and the second adjustment plate 520 is provided with a fourth mounting hole for the second mounting member 582 to pass therethrough.

Based on the same conception, the present application provides a box girder formed by prefabricated box girder formwork fabrication as described in any of the above. The box girder can be applied to bridges, roof trusses, roof panel columns, hydraulic engineering and the like, and the application is not limited to the above. In the present embodiment, the formed box girder forms a concrete member of a box girder cavity by the inner mold 100.

In the embodiment of the application, when forming the box girder, determining the inclined position and the inclined angle of the slope surface of the box girder according to an application scene and the like, determining and adjusting the first template or the second template according to the inclined position, adjusting the adjusting structure 50 on the first template or the second template according to the inclined angle, determining the corresponding first adjusting hole 530 and the second adjusting hole 540, installing the connecting piece 550 and the supporting piece 300 on the first adjusting hole 530 and the second adjusting hole 540, and setting adhesive on the first joint surface 103 and the second joint surface 104 on the first template and the second template to form the inner mold 100; fixing the inner mold 100 to the outer mold 200 through the support 300, and forming a casting space communicating with each other between the inner mold 100 and the outer mold 200; pouring concrete between the inner mold 100 and the outer mold 200; and removing the outer die 200 after the concrete is formed to form a box girder with a certain slope angle.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the utility model. Terms such as "disposed" or the like as used herein may refer to either one element being directly attached to another element or one element being attached to another element through an intermediate member. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present utility model has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. Those skilled in the art will appreciate that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed.

Claims (10)

1. The prefabricated box girder template is characterized by comprising a first module and a second module which are enclosed to form a box body structure, wherein the box body structure is provided with a top surface and a bottom surface which are oppositely arranged;

the first module and the second module both comprise an upper sub-module for forming part of the top surface and a lower sub-module for forming part of the bottom surface, the upper sub-module and the lower sub-module are arranged in a hinged manner, and the top surface comprises a first top part positioned on the first module and a second top part positioned on the second module;

the first module and the second module are provided with a plurality of adjusting structures in an array manner along the length direction, the adjusting structures are used for adjusting the gradient angle of the first top and/or the second relative to the bottom surface, wherein,

each adjusting structure comprises a first adjusting plate hinged with the upper sub-module and a second adjusting plate hinged with the lower sub-module, at least one first adjusting hole is formed in the first adjusting plate, at least one second adjusting hole is formed in the second adjusting plate, and the adjusting structure further comprises a connecting piece used for connecting one of the first adjusting holes with one of the second adjusting holes.

2. The precast box girder formwork of claim 1, wherein the first module comprises a first upper sub-module for forming the top surface and a first lower sub-module for forming the bottom surface, the second module comprises a second upper sub-module for forming the top surface and a second lower sub-module for forming the bottom surface, and the first upper sub-module and the second upper sub-module are fixedly connected by an adhesive.

3. The precast box girder formwork of claim 2, wherein the first upper sub-module includes a first engagement surface in contact with the second upper sub-module, the second upper sub-module includes a second engagement surface in contact with the first upper sub-module, the first engagement surface and the second engagement surface are disposed obliquely, and an angle between the first engagement surface and the first top is the same as an angle between the second engagement surface and the second top.

4. The prefabricated box girder formwork of claim 2, wherein the box structure comprises a first inner side and a second inner side disposed opposite each other, the first upper sub-module and the first lower sub-module being hinged on the first inner side, the second upper sub-module and the second lower sub-module being hinged on the second inner side.

5. The precast box girder formwork of claim 4, wherein the first upper sub-module includes a first inclined surface for forming the first inner side surface, the first upper sub-module includes a second inclined surface for forming the first inner side surface, and the first inclined surface is disposed at an angle to the second inclined surface.

6. The precast box girder formwork of claim 1, wherein the adjustment structure is disposed along a height direction of the box structure, the first adjustment plate and the second adjustment plate are fixedly connected by two connecting members, and each of the connecting members is connected to one of the first adjustment holes and one of the second adjustment holes, respectively.

7. The precast box girder formwork of claim 6, wherein at least one of the two connecting members is fixedly connected with the first adjusting plate and the second adjusting plate through a reinforcing plate, and a plurality of connecting members arranged in an array along the same direction on the plurality of adjusting structures are fixedly arranged on the same reinforcing plate.

8. The precast box girder formwork of claim 2, wherein the adjustment structure comprises a first hinge member hinged to the first upper sub-module, the first hinge member and the first adjustment plate are fixedly connected through a first mounting member, a first mounting hole for the first mounting member to pass through is formed in the first hinge member, and a second mounting hole for the first mounting member to pass through is formed in the first adjustment plate.

9. The precast box girder formwork of claim 2, wherein the adjustment structure comprises a second hinge member hinged with the first lower sub-module, the second hinge member and the second adjustment plate being fixedly connected by a second mounting member; the second hinge member is provided with a third mounting hole for the second mounting member to pass through, and the second adjusting plate is provided with a fourth mounting hole for the second mounting member to pass through.

10. A box girder manufactured by using the prefabricated box girder formwork according to any one of claims 1 to 9.