Rapid forming and positioning device for cast-in-place box girder chamfer

Abstract

The utility model discloses a cast-in-place box girder chamfer rapid forming positioning device which comprises four round corner components and four transverse plate connecting components, and every two adjacent round corner components are connected through one transverse plate connecting component, so that a rectangular barrel-shaped cavity with four round chamfers is defined. The fillet component is an integrally-formed piece, and the transverse plate connecting component is an integrally-formed piece. The utility model relates to the technical field of cast-in-place box girder chamfer forming, a 1 / 4 arc-shaped strip is used for forming an arc-shaped chamfer part of a cast-in-place box girder, the 1 / 4 arc-shaped strip can be arranged at a target position through an arc-shaped positioning plate, and the 1 / 4 arc-shaped strip ensures the strength of a rounded corner component, prevents the rounded corner component from deforming in the pouring process and ensures the pouring quality; the transverse plate connecting component and the rounded corner component just form a clamping structure with a boss and are locked and fixed together with the fastener, so that the transverse plate connecting component and the rounded corner component are assembled, the operation is convenient, and the pouring efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cast-in-place box girders, in particular to a cast-in-place box girder chamfering rapid prototyping and positioning device. Background Art

[0002] The rapid prototyping and positioning technology of chamfering cast-in-place box girders is a key technology in the field of construction engineering, especially in improving construction efficiency, ensuring project quality and aesthetic appearance. With the acceleration of urbanization and the continuous advancement of transportation infrastructure construction, construction projects have put forward higher requirements for construction quality, construction period control and cost control. As a common structural form in construction engineering, cast-in-place box girders are widely used in the construction of urban interchange viaducts and high-grade bridges due to their advantages such as good linearity, high rigidity, strong plasticity and neat and beautiful appearance.

[0003] During the construction of cast-in-place box girders, the treatment of the chamfered parts is particularly critical. Chamfering is not only related to the overall aesthetics of the box girder, but also directly affects the stability and durability of the structure. A cast-in-place box girder arc chamfering forming template with publication number CN210163789U discloses an arc-shaped bamboo plywood and positioning supports, the positioning supports are evenly spaced and installed on the outer side of the bamboo plywood, the bamboo plywood includes bamboo strips and flexible rubber strips, the bamboo strips are connected by rubber strips, and the two sides of the bamboo strips are embedded in the adjacent rubber strips, and an aluminum alloy pad is provided on the outer side of the bamboo plywood. However, in the patent document, the shaping template at the arc chamfer can be adjusted in shape, so if it is not firmly fixed between pouring, it will cause the shaping template at the arc chamfer to deform, affecting the pouring quality. Utility Model Content

[0004] The utility model aims to provide a chamfering rapid forming positioning device for cast-in-place box beams, so as to ensure the casting quality and improve the casting efficiency.

[0005] To this end, the technical solution adopted by the utility model is: a cast-in-place box beam chamfer rapid prototyping positioning device, comprising four rounded corner components and four transverse plate connecting components, and two adjacent rounded corner components are connected by a transverse plate connecting component, thereby enclosing a rectangular cylindrical cavity with four circular chamfers;

[0006] The fillet component is an integrally formed part, including a 1 / 4 arc strip, both sides of the 1 / 4 arc strip are provided with transverse extension plates, one side of the transverse extension plate is provided with a mounting edge, the transverse extension plate is equal to the thickness of the 1 / 4 arc strip, the thickness of the mounting edge is half the thickness of the transverse extension plate, and the inner wall of the mounting edge is flush with the inner wall of the transverse extension plate, and an arc-shaped positioning plate is provided on the outer wall surface of the lower end of the 1 / 4 arc strip;

[0007] The cross-plate connecting member is an integrally formed part, including an external closing plate and an internal closing plate. The thickness of the external closing plate is equal to that of the internal closing plate. The left and right ends of the external closing plate protrude from the internal closing plate, so that the cross-plate connecting member and the rounded corner member form a clamping structure with a boss and are locked and fixed together with fasteners. A rectangular positioning plate is provided on the outer wall surface of the lower end of the external closing plate.

[0008] Preferably, at least two reinforcing ribs penetrating vertically are provided on the outer side wall of the 1 / 4 arc-shaped strip.

[0009] Preferably, a plurality of threaded holes are equidistantly provided on the mounting edge, and a plurality of through holes are correspondingly equidistantly provided on the external closing plate. Each through hole is provided with a bolt, and the bolt serves as the fastener and is threadably inserted into the threaded hole for locking and fixing.

[0010] Preferably, the arc-shaped positioning plate and the rectangular positioning plate are each provided with two mounting holes spaced apart from each other on the left and right sides.

[0011] Preferably, two reinforcing ribs penetrating vertically are arranged on the outer side wall of the 1 / 4 arc-shaped strip, and the lower ends of the reinforcing ribs are connected to the arc-shaped positioning plate.

[0012] The thickness of the arc-shaped positioning plate protruding outward relative to the outer wall of the rounded component and the thickness of the rectangular positioning plate protruding outward relative to the outer wall of the transverse plate connecting component are equal.

[0013] The beneficial effects of the utility model are as follows: the four rounded corner components and the four cross-plate connecting components form a rectangular cylindrical cavity with four circular chamfers; the 1 / 4 arc strip is used for forming the arc-shaped chamfered parts of the cast-in-place box girder; the 1 / 4 arc strip can be set at the target position by the arc-shaped positioning plate; the 1 / 4 arc strip ensures the strength of the rounded corner component, prevents the rounded corner component from deforming during the pouring process, and ensures the pouring quality; the cross-plate connecting component and the rounded corner component just form a clamping structure with a boss and are locked and fixed together with fasteners to realize the assembly of the cross-plate connecting component and the rounded corner component; the cross-plate connecting component is set at the target position by the rectangular positioning plate, which is easy to operate and improves the pouring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the rounded corner component of the utility model.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the transverse plate connecting component of the utility model.

[0017] In the figure: 1, 1 / 4 arc strip, 2, horizontal extension plate, 3, mounting edge, 4, arc positioning plate, 5, external closing plate, 6, internal closing plate, 7, rectangular positioning plate, 8, reinforcing ribs, 9, threaded holes, 10, through holes, 11, bolts, 12, mounting holes. DETAILED DESCRIPTION

[0018] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0019] like Figure 1-3 As shown, a cast-in-place box girder chamfer rapid prototyping and positioning device includes four rounded corner components and four transverse plate connecting components. Two adjacent rounded corner components are connected by a transverse plate connecting component, thereby forming a rectangular cylindrical cavity with four circular chamfers.

[0020] The fillet component is an integrally formed part, including a 1 / 4 arc strip 1, with transverse extension plates 2 provided on both sides of the 1 / 4 arc strip 1, and a mounting edge 3 provided on one side of the transverse extension plate 2. The transverse extension plate 2 is equal in thickness to the 1 / 4 arc strip 1, the mounting edge 3 is half the thickness of the transverse extension plate 2, and the inner wall of the mounting edge 3 is flush with the inner wall of the transverse extension plate 2, and an arc-shaped positioning plate 4 is provided on the outer wall surface of the lower end of the 1 / 4 arc strip 1.

[0021] The horizontal plate connecting member is an integrally formed part, including an outer closing plate 5 and an inner closing plate 6. The outer closing plate 5 and the inner closing plate 6 have the same thickness, and the left and right ends of the outer closing plate 5 protrude from the inner closing plate 6, so that the horizontal plate connecting member and the rounded corner member just form a clamping structure with a boss and are locked and fixed together with fasteners. A rectangular positioning plate 7 is provided on the outer wall surface of the lower end of the outer closing plate 5.

[0022] Preferably, at least two reinforcing ribs 8 are provided on the outer side wall of the 1 / 4 arc-shaped strip 1 and extend vertically therethrough.

[0023] In addition, a plurality of threaded holes 9 are equidistantly provided on the mounting edge 3, and a plurality of through holes 10 are correspondingly equidistantly provided on the external closing plate 5. Each through hole 10 is provided with a bolt 11, which serves as a fastener and is threadably inserted into the threaded hole 9 for locking and fixing.

[0024] The arc-shaped positioning plate 4 and the rectangular positioning plate 7 are both provided with two mounting holes 12 spaced apart from each other.

[0025] Two reinforcing ribs 8 penetrating vertically are arranged on the outer side wall of the 1 / 4 arc-shaped strip 1 , and the lower ends of the reinforcing ribs 8 are connected to the arc-shaped positioning plate 4 .

[0026] The thickness of the arc-shaped positioning plate 4 protruding outward relative to the outer wall of the rounded component and the thickness of the rectangular positioning plate 7 protruding outward relative to the outer wall of the horizontal plate connecting component are equal.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cast-in-place box beam chamfer rapid prototyping positioning device, characterized in that: It includes four rounded corner components and four transverse plate connecting components, and two adjacent rounded corner components are connected by a transverse plate connecting component, thereby forming a rectangular cylindrical cavity with four rounded chamfers; The fillet component is an integrally formed part, comprising a 1 / 4 arc strip (1), both sides of the 1 / 4 arc strip (1) are provided with transverse extension plates (2), one side of the transverse extension plate (2) is provided with a mounting edge (3), the transverse extension plate (2) and the 1 / 4 arc strip (1) have the same thickness, the mounting edge (3) has a half the thickness of the transverse extension plate (2), and the inner wall of the mounting edge (3) is flush with the inner wall of the transverse extension plate (2), and an arc-shaped positioning plate (4) is provided on the outer wall surface of the lower end of the 1 / 4 arc strip (1); The cross-plate connecting member is an integrally formed part, comprising an outer closing plate (5) and an inner closing plate (6). The outer closing plate (5) and the inner closing plate (6) have equal thicknesses. The left and right ends of the outer closing plate (5) protrude from the inner closing plate (6), so that the cross-plate connecting member and the rounded corner member form a snap-on structure with a boss and are locked and fixed together in combination with fasteners. A rectangular positioning plate (7) is provided on the outer wall surface of the lower end of the outer closing plate (5).

2. The cast-in-place box girder chamfering rapid prototyping and positioning device according to claim 1, characterized in that: At least two reinforcing ribs (8) extending vertically are arranged on the outer side wall of the 1 / 4 arc-shaped strip (1).

3. The cast-in-place box girder chamfering rapid prototyping and positioning device according to claim 1, characterized in that: The mounting edge (3) is provided with a plurality of threaded holes (9) at equal intervals, and the external closing plate (5) is provided with a plurality of through holes (10) at corresponding equal intervals. Each through hole (10) is provided with a bolt (11). The bolt (11) serves as the fastener and is threadably inserted into the threaded hole (9) to achieve locking and fixing.

4. The cast-in-place box beam chamfer rapid prototyping and positioning device according to claim 1, characterized in that: The arc-shaped positioning plate (4) and the rectangular positioning plate (7) are both provided with two mounting holes (12) spaced apart from each other on the left and right sides.

5. The cast-in-place box beam chamfer rapid prototyping and positioning device according to claim 1, characterized in that: Two reinforcing ribs (8) extending vertically are arranged on the outer side wall of the 1 / 4 arc-shaped strip (1), and the lower ends of the reinforcing ribs (8) are connected to the arc-shaped positioning plate (4).

6. The cast-in-place box beam chamfer rapid prototyping and positioning device according to claim 1, characterized in that: The thickness of the arc-shaped positioning plate (4) protruding outward relative to the outer wall of the rounded corner component and the thickness of the rectangular positioning plate (7) protruding outward relative to the outer wall of the transverse plate connecting component are equal.

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