Cast-in-place beam template for bridge support

Abstract

The utility model relates to the technical field of bridge prefabricated connecting pieces, in particular to a bridge support cast-in-place beam formwork which comprises a mounting plate. Mounting holes are formed in the four corners of the upper surface of the mounting plate, second screws are mounted in the mounting holes, anchoring rods are connected to the second screws, a vertical plate is arranged at the edge of the upper surface of the mounting plate, the vertical plate is connected with first screws through through holes formed in the outer side face of the vertical plate, and a positioning nut and a clamping plate are arranged at the two ends of each first screw correspondingly; a U-shaped reinforcing bar is welded in the middle of the upper surface of the mounting plate; according to the cast-in-place beam formwork of the bridge support, the cast-in-place beam formwork and the top plate of the bridge support can be fixed together through the clamping plates, compared with traditional single bolt connection, the connection can effectively improve the anti-shearing capacity of the connecting position of the bridge support, and meanwhile the laying efficiency of a reinforcing mesh cage can be effectively improved through the U-shaped reinforcing bars welded in advance.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated bridge connectors, and in particular to a bridge support cast-in-place beam template. Background Art

[0002] During the installation and construction of cast-in-place beam-pot bearings, it is necessary to first install four anchor columns on the bridge piers, use concrete to cast and fix the anchor columns on the bridge piers, then pass the anchor columns through the mounting holes at the bottom of the bridge bearings, use nuts to fix the bridge bearing bottom plate and the anchor columns together, and then you can pour the cushion stone concrete. After the cushion stone concrete solidifies, you can install the bridge bearing cast-in-place beam formwork on the top plate of the bridge bearing. The connection between the bridge bearing top plate and the bridge bearing cast-in-place beam formwork is fixed by bolts. In extreme cases, the bolts are easily deformed by the strong shear force from the bearing bottom plate and the bridge, and it is also inconvenient to tie the steel mesh cage on the surface of the cast-in-place beam formwork during construction. Utility Model Content

[0003] The present application provides a cast-in-place beam formwork for a bridge support, which can be used to fix the cast-in-place beam formwork and the top plate of the bridge support together through a splint. Compared with the traditional single bolt connection, this connection can effectively improve the shear resistance of the bridge support connection. At the same time, through the pre-welded U-shaped steel bars, the laying efficiency of the steel mesh cage can be effectively improved, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a bridge support cast-in-place beam formwork, comprising a mounting plate; mounting holes are provided at the four corners of the upper surface of the mounting plate, screw rod 2 is installed on the mounting hole, screw rod 2 is connected to an anchor rod, a vertical plate is provided at the edge of the upper surface of the mounting plate, the vertical plate is connected to screw rod 1 through a through hole arranged on the outer side surface thereof, positioning nuts and clamps are respectively provided at both ends of screw rod 1, and a U-shaped steel bar is welded to the middle part of the upper surface of the mounting plate.

[0005] Preferably, the outer side surface of the anchor rod is provided with at least one annular reinforcement rib, and the outer side surface of the annular reinforcement rib is provided with a groove.

[0006] Preferably, the number of the vertical plates is four, and the four vertical plates are evenly distributed on the mounting plate.

[0007] Preferably, the number of the U-shaped steel bars is not less than one, and at least one U-shaped steel bar is evenly distributed at equal intervals on the upper surface of the mounting plate.

[0008] Preferably, the upper end surface of the anchor rod is provided with a polygonal mounting head.

[0009] Compared with the prior art, the beneficial effects of this application are:

[0010] 1. The cast-in-place beam formwork of the bridge support can fix the cast-in-place beam formwork and the top plate of the bridge support together through the clamping plate. Compared with the traditional single bolt connection, this connection can effectively improve the shear resistance of the bridge support connection. At the same time, the pre-welded U-shaped steel bars can effectively improve the laying efficiency of the steel mesh cage;

[0011] 2. During construction, place the mounting plate on the top plate of the bridge bearing, and ensure that the mounting hole coincides with the positioning hole on the top plate of the bridge bearing. Then use screw 2 to pass through the positioning hole and the mounting hole from the bottom in sequence, and finally screw the anchor rod onto screw 2 until screw 2 connects the mounting plate and the top plate of the bridge bearing together; after the mounting plate is fixed, the positioning nut will be rotated to make the clamping plate close to the outer surface of the top plate of the bridge bearing. By adding the clamping plate, this application can effectively share the shear force borne by screw 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of this application;

[0013] Figure 2 This is the main view of this application.

[0014] In the figure: 1 positioning nut, 2 mounting plate, 3 clamping plate, 4 vertical plate, 5 screw rod 1, 6 mounting hole, 7 screw rod 2, 8 annular reinforcement bar, 9 anchor rod, 10 polygonal mounting head, 11 U-shaped reinforcement bar. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0016] In the description of this application, if the orientation description is involved, for example, the orientation or position relationship indicated by "upper", "lower", "front", "back", "left", "right", etc. is based on the attached Figure 2 The orientation or position relationship shown is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present application. When a feature is referred to as being "set", "fixed", or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0017] See also Figure 1-2The present application provides the following technical solutions: a bridge support cast-in-place beam formwork, comprising a mounting plate 2; mounting holes 6 are provided at the four corners of the upper surface of the mounting plate 2, screw rods 7 are installed on the mounting holes 6, and anchor rods 9 are connected to the screw rods 7; a vertical plate 4 is provided at the edge of the upper surface of the mounting plate 2, and the vertical plate 4 is connected to a screw rod 5 through a through hole arranged on its outer side surface, and positioning nuts 1 and clamps 3 are respectively provided at both ends of the screw rod 5, and a U-shaped steel bar 11 is welded to the middle part of the upper surface of the mounting plate 2.

[0018] Specifically, during construction, the mounting plate 2 is placed on the top plate of the bridge support, and the mounting hole 6 is ensured to coincide with the positioning hole on the top plate of the bridge support. Then, the screw 7 is used to pass through the positioning hole and the mounting hole 6 from the bottom in sequence, and finally the anchor rod 9 is screwed into the screw 7 until the screw 7 connects the mounting plate 2 to the top plate of the bridge support.

[0019] More specifically, after the mounting plate 2 is fixed, the positioning nut 1 will be rotated to make the clamping plate 3 close to the outer surface of the bridge support top plate. By adding the clamping plate 3, the present application can effectively share the shear force borne by the screw rod 7.

[0020] In the traditional construction process, after the steel mesh cage is tied, it is necessary to use welding equipment to weld the steel mesh cage and the mounting plate 2 together, which is extremely inconvenient to operate. In the present application, the U-shaped steel bar 11 is welded to the mounting plate 2 in advance. When tying the steel mesh cage, it is only necessary to tie the U-shaped steel bar 11 together with the steel mesh cage as a part of it.

[0021] Furthermore, at least one annular reinforcement rib 8 is provided on the outer side surface of the anchor rod 9, and a groove is provided on the outer side surface of the annular reinforcement rib 8.

[0022] Specifically, the annular reinforcement rib 8 and the groove arranged on the outer side thereof can increase the connection strength between the cast-in-place beam and the screw rod 2 7 .

[0023] Furthermore, the number of the vertical plates 4 is four, and the four vertical plates 4 are evenly distributed on the mounting plate 2 .

[0024] Specifically, the four vertical plates 4 can press the clamping plate 3 against the outer surface of the bridge support top plate from four directions: front, back, left, and right.

[0025] Furthermore, the number of the U-shaped steel bars 11 is not less than one, and the U-shaped steel bars 11 are evenly distributed on the upper surface of the mounting plate 2 at equal intervals.

[0026] Specifically, the U-shaped steel bar 11 as a part of the steel mesh cage can effectively improve the connection strength between the steel mesh cage and the mounting plate 2.

[0027] Furthermore, a polygonal mounting head 10 is provided on the upper end surface of the anchor rod 9 .

[0028] Specifically, the polygonal mounting head 10 is a hexagonal column, and the anchor rod 9 can be conveniently screwed onto the screw rod 2 7 using a wrench.

[0029] When in use: use the screw rod 2 7 to fix the mounting plate 2 on the bridge support top plate, then rotate the positioning nut 1 so that the four clamping plates 3 can be pressed tightly against the outer surface of the bridge support top plate, and then assemble other cast-in-place beam templates. After all the templates are assembled, the steel mesh cage can be tied. During the tying, the U-shaped steel bar 11 is used as a part of the steel mesh cage. After the steel mesh cage is tied, the cast-in-place beam can be cast.

[0030] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A bridge support cast-in-place beam formwork, characterized in that: The invention comprises a mounting plate (2); the four corners of the upper surface of the mounting plate (2) are provided with mounting holes (6); screw rods (7) are installed on the mounting holes (6); screw rods (7) are connected to anchor rods (9); a vertical plate (4) is provided at the edge of the upper surface of the mounting plate (2); the vertical plate (4) is connected to screw rods (5) via through holes provided on the outer side thereof; positioning nuts (1) and clamping plates (3) are provided at both ends of screw rods (5); and a U-shaped steel bar (11) is welded to the middle of the upper surface of the mounting plate (2).

2. A bridge support cast-in-place beam formwork according to claim 1, characterized in that: The outer side surface of the anchor rod (9) is provided with at least one annular reinforcement rib (8), and the outer side surface of the annular reinforcement rib (8) is provided with a groove.

3. A bridge support cast-in-place beam formwork according to claim 1, characterized in that: The number of the vertical plates (4) is four, and the four vertical plates (4) are evenly distributed on the mounting plate (2).

4. The bridge support cast-in-place beam formwork according to claim 1, characterized in that: The number of the U-shaped steel bars (11) is not less than one, and the U-shaped steel bars (11) are evenly distributed at equal distances on the upper surface of the mounting plate (2).

5. A bridge support cast-in-place beam formwork according to claim 2, characterized in that: The upper end surface of the anchor rod (9) is provided with a polygonal mounting head (10).

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