CN220057641U - Box bracket structure of bailey beam - Google Patents

Abstract

The utility model relates to the technical field of building construction, in particular to a box bracket structure of a bailey beam. Through setting up box bracket structure in the tip department of bailey beam, bracket structure includes web, roof and bottom plate, and the downside of web sets up to the ladder, and the bottom plate section of corresponding web sets up to first bottom plate, second bottom plate and rising portion. When the bridge deck of the current bridge is overlapped with the bailey beam, the bridge pier of the current bridge can be directly connected with the first bottom plate, so that the top surface of the temporary bailey beam bridge is consistent with the bridge deck elevation of the current bridge, and longitudinal slope sequential connection is realized.

Description

Box bracket structure of bailey beam

Technical Field

The utility model relates to the technical field of building construction, in particular to a box bracket structure of a bailey beam.

Background

The Bailey beam is formed by welding an upper chord member, a lower chord member, a vertical rod and an inclined rod, has the characteristics of simple structure, convenient transportation, quick erection and strong adaptability, is used as a temporary supporting member in the bridge engineering construction process, and is directly arranged above the bridge pier of the current bridge when being lapped. Because the bailey beam has a fixed beam height, after the bailey beam is arranged above the bridge pier, an upper chord of the bailey beam and a bridge deck of the current bridge have an up-down height difference. In the prior art, by paving a concrete layer on a bridge deck, a ramp is formed at the joint of the bailey beam and the current bridge so as to eliminate the height difference between the bailey beam and the bridge deck of the current bridge, and the running of a vehicle is facilitated. But lay concrete layer complex operation, increase cost, and the concrete layer of setting still can increase extra load to the bridge, and still need clear away the concrete layer earlier when dismantling the bailey beam.

Disclosure of Invention

In order to solve the problem that bridge height difference exists between bridge decks of existing bridge lap joint and existing bridge joint of existing bridge, the utility model provides a box bracket structure of an existing bridge.

The utility model provides a box bracket structure of a bailey beam, which has the following specific technical scheme: the bracket structure comprises a web, a top plate is arranged at the upper end of the web, a bottom plate is arranged at the lower end of the web, the lower end of the web is arranged in a stepped mode, and the corresponding sections of the bottom plate are arranged as a first bottom plate, a second bottom plate and a third bottom plate.

Further, the top plate is fixedly connected with a first bailey beam chord member, and the third bottom plate is fixedly connected with a second bailey beam chord member.

Further, the end part of the first bailey beam chord member is provided with a first connector in an outward extending mode, and the end part of the second bailey beam chord member is provided with a second connector in an outward extending mode.

Further, the second bottom plate is specifically provided in an arc shape.

Further, stiffening ribs are arranged at the web plate.

Further, the first bailey beam chord is provided with a first chord transverse stiffening rib, and the second bailey beam chord is provided with a second chord transverse stiffening rib.

Compared with the prior art, the utility model has the following beneficial effects: through setting up box bracket structure in the tip department of bailey beam, bracket structure includes web, roof and bottom plate, and the downside of web sets up to the ladder, and the bottom plate section of corresponding web sets up to first bottom plate, second bottom plate and rising portion board. When the bridge deck of the current bridge is overlapped with the bailey beam, the bridge pier of the current bridge can be directly connected with the first bottom plate, so that the top surface of the temporary bailey beam bridge is consistent with the bridge deck elevation of the current bridge, and longitudinal slope sequential connection is realized.

Drawings

FIG. 1 is a schematic diagram of a bracket structure according to the present utility model;

FIG. 2 is a schematic cross-sectional view of A-A;

fig. 3 is a schematic diagram of the connection of the bracket structure and the bailey beam.

Reference numerals illustrate: a web 100; a first web 101; a second web 102; web vertical ribs 103; web diagonal ribs 104; a partition 105; a top plate 200; a first bailey beam chord 201; a first joint 202; a first chord transverse stiffener 203; a first connection plate 301; a second connection plate 302; a raised portion 303; a second bailey beam chord 304; a second joint 305; a second chord transverse stiffener 306; beret beam 400.

Detailed Description

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, and the specific meaning of the terms may be understood as appropriate.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in the drawings, the utility model discloses a box bracket structure of a bailey beam, which comprises a web plate 100, wherein a top plate 200 is arranged above the web plate 100, the lower end of the web plate 100 is arranged in a step shape, two step surfaces are formed at the lower end of the step-shaped web plate 100, a first connecting plate 301 and a second connecting plate 302 are respectively and fixedly connected with the two step surfaces, and a lifting part 303 is further arranged between the first connecting plate 301 and the second connecting plate 302.

As shown in fig. 1, the web plate 100 of the bracket structure is specifically a plate with a straight upper end and a stepped lower end, and the lower end of the stepped web plate 100 is provided with two stepped surfaces, wherein the distance between the stepped surface arranged on the left side of the lower end of the web plate 100 and the upper end of the web plate 100 is shorter than the distance between the stepped surface arranged on the right side of the lower end of the web plate 100. The first connecting plate 301 is disposed at the step surface on the left side, specifically, the first connecting plate 301 is a horizontal plate, and is fixedly disposed at the lower end of the web plate 100 through welding or other connection modes. An elevation 303 is further arranged between the two step surfaces, and the elevation 303 is used for connecting the two step surfaces with different horizontal heights. When the bracket structure is provided, the first connection plate 301 on the left side of the bracket structure is connected to the bridge pier of the current bridge, and the second connection plate 301 on the right side of the bracket structure is connected to the bailey beam. The bridge pier is connected to bracket structure one end that the lower extreme is echelonment, and the bridge pier is connected to the other end, and bracket structure makes bridge height and current concrete bridge deck elevation unanimous with the bridge height transition of concrete current situation bridge to the bridge height of bracket, and the longitudinal slope is followed and is connected.

As shown in fig. 2, the bracket structure has a box-shaped cross section, wherein the web 100 includes a first web 101 and a second web 102, a partition 105 is further disposed between the first web 101 and the second web 102, and the first web 101 and the second web 102 are symmetrically disposed on two sides of the partition 105. The first web 101 and the second web 102 which are symmetrically arranged form two side walls of the box bracket structure, the top plate 200 which is arranged at the top ends of the first web 101 and the second web 102 forms the top wall of the box bracket structure, and the bottom plate which is arranged at the bottom ends of the first web 101 and the second web 102 forms the bottom wall of the box bracket structure. The strength and rigidity of the bracket structure are improved by the partition plate 105 arranged in the box structure, and the bearing force of the bracket structure is transferred to the pier. Specifically, the bracket structure can also be welded by using Q355 low-alloy high-strength steel plates. The bracket structure of the box structure can be transversely connected with two bailey beams through the first web 101 and the second web 102, so that the connection strength of the bracket structure and the bailey beams is further improved, and the transverse deformation of the bailey beams can be restrained. The bracket structure with the box section has high strength, so that heavy-duty vehicles can pass smoothly.

Further preferably, in other embodiments of the present utility model, the top plate 200 of the bracket structure may be fixedly connected to the first bailey chord 201, and the end of the first bailey chord 201 is provided with a first joint 302 in an extending manner; the lower end of the second connecting plate 302 at the lower end of the bracket structure is fixedly connected with a second bailey beam chord member 304, and a second joint 305 is arranged at the end part of the second bailey beam chord member 302 in an extending mode. The first bailey chord 201 and the second bailey chord 304 may be fixed to the upper and lower ends of the bracket structure by penetration welding, and the widths of the first bailey chord 201 and the second bailey chord 304 are consistent with the widths of the connected bailey chords. The right side ends of the first and second bailey beam chords 201 and 304 extend to the right side out of the web 100, respectively, with first and second joints 302 and 305 for connecting the bailey beams. The first joint 302 and the second joint 305 may be specifically provided with pin holes, and correspondingly, pin holes are also provided at the ends of the bailey beam. The bracket structure is connected with the bailey beam in a pin joint mode, so that the bracket structure and the bailey beam are convenient to mount and dismount.

Further preferably, in other embodiments of the present utility model, the raised portion 303 may alternatively be arranged in a circular arc shape. The raised portion 303 is disposed between two stepped surfaces provided at the lower end of the web 100. The raised portion 303 is arranged in an arc shape, so that stress concentration is effectively reduced, structural stress is reduced, and bearing capacity of the bracket structure is improved.

Further preferably, in other embodiments of the utility model, stiffening ribs may optionally be provided at the web 100. Specifically, the stiffening ribs include web vertical ribs 103 and web vertical ribs 104, the web vertical ribs 103 are disposed at the web 100 perpendicular to the top plate 200, and the web vertical ribs 104 are obliquely disposed at the web 100. The number of stiffeners may be specifically set according to the bearing size of the bracket structure, and only one set of stiffeners may be provided in the first web 101 or the second web 102. The stiffening ribs are arranged at the web plate 100, so that the structural stability of the web plate 100 is improved, the dispersion of the vertical force of the bracket structure is facilitated, and the bearing capacity of the bracket structure is further improved.

Further preferably, in other embodiments of the present utility model, the first bailey chord 201 may be optionally provided with a first chord transverse stiffener 203, and the second bailey chord 304 may be provided with a second chord transverse stiffener 306, so as to ensure that the first bailey chord 201 and the second bailey chord 306 are locally stable and transmit concentrated forces, which may improve stability and torsion resistance of the corbel structure.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (6)

1. The utility model provides a box bracket structure of bailey beam which characterized in that: including web (100), the upper end fixedly connected with roof (200) of web (100), the lower tip of web (100) sets up to echelonment, forms two step faces at the web (100) lower extreme of echelonment, and two step faces are fixed connection respectively first connecting plate (301) and second connecting plate (302), still are provided with rising portion (303) between first connecting plate (301) and second connecting plate (302).

2. The box bracket structure of a baile according to claim 1, wherein: the upper end of the top plate (200) is fixedly connected with a first bailey beam chord member (201), and a first joint (202) is arranged at the end part of the first bailey beam chord member (201) in an extending manner; the lower end of the second connecting plate (302) is fixedly connected with a second bailey beam chord member (304), and a second connector (305) is arranged at the end part of the second bailey beam chord member (304) in an extending mode.

3. A box bracket structure of a baile according to claim 1 or 2, characterized in that: the raised portion (303) is specifically provided in an arc shape.

4. A box bracket structure of a baile according to claim 1 or 2, characterized in that: stiffening ribs are arranged at the web plate (100).

5. A box bracket structure for a baile according to claim 3, wherein: stiffening ribs are arranged at the web plate (100).

6. The box bracket structure of a baile according to claim 2, wherein: the first bailey beam chord member (201) is provided with a first chord member transverse stiffening rib (203), and the second bailey beam chord member (304) is provided with a second chord member transverse stiffening rib (306).