Bracket bracket for supporting steel beam cast-in-place bridge floor formwork

Abstract

The utility model relates to the field of bridge construction, in particular to a corbel bracket for supporting a steel beam cast-in-place bridge floor formwork, which comprises a cross beam, a vertical beam, an oblique beam and a detachable fixing piece, one end of the cross beam is vertically connected to the side face of the vertical beam, and a certain distance is kept between the cross beam and each of the two ends of the vertical beam; one end of the oblique beam is connected with the other end of the cross beam, and the other end of the oblique beam is connected with one end of the vertical beam; the ends, not connected with the oblique beams, of the vertical beams perpendicularly abut against a steel plate of a bridge floor formwork, and part of the cross beams abut against square timbers on the bottom face of the bridge floor formwork. The detachable fixing piece is arranged on the side, close to the steel plate, of the cross beam, and the cross beam is fixed to the steel plate. The corbel bracket can adapt to the supporting condition that the bottom face of the bridge floor formwork protrudes, and the supporting stability is high; and connecting parts are few, assembly and disassembly are efficient and convenient, and the construction cost is reduced.

Description

Technical Field

[0001] The embodiments of this specification relate to the field of bridge construction, and more particularly to a corbel bracket for supporting a steel beam cast-in-situ bridge deck formwork. Background Art

[0002] Cast-in-place bridge deck formwork is primarily used to support and secure the concrete deck, ensuring it maintains its intended shape and dimensions during pouring. This allows for even and dense filling of the formwork, resulting in a strong, flat bridge deck structure. Specific forms include steel, wood, and bamboo plywood formwork. To ensure construction safety and shape and dimensional accuracy during concrete pouring, corbel brackets are often used at the bottom of the deck formwork to provide stable support and distribute the loads applied. Existing bridge corbel brackets are often secured to the bottom of the deck formwork and the sides of the piers using lugs or pre-embedded bolts on the piers, making assembly and disassembly inconvenient and costly. Corbel brackets are triangular structures, typically consisting of horizontal, vertical, and diagonal beams. Existing corbel brackets typically connect the ends of the horizontal and vertical beams to form a right-angled structure that supports the bridge deck formwork. However, when the supporting timbers or other structures at the bottom of the deck formwork protrude, the angle formed by the horizontal and vertical beams cannot adequately accommodate the unevenness of the bottom of the bridge deck formwork, compromising the support stability of the brackets. Utility Model Content

[0003] The embodiments of this specification provide a corbel bracket for supporting a steel beam cast-in-place bridge deck formwork, aiming to solve one or more of the above-mentioned problems and other potential problems.

[0004] To achieve the above objectives, the following technical solutions are provided:

[0005] This specification discloses a corbel bracket for supporting a steel beam cast-in-place bridge deck formwork, comprising: a horizontal beam, a vertical beam, an oblique beam and a detachable fixing member, wherein one end of the horizontal beam is vertically connected to the side surface of the vertical beam, and maintains a certain distance from both ends of the vertical beam; one end of the oblique beam is connected to the other end of the horizontal beam, and the other end of the oblique beam is connected to one end of the vertical beam; the end of the vertical beam not connected to the oblique beam vertically contacts the steel plate of the bridge deck formwork, and part of the horizontal beam contacts the square wood on the bottom surface of the bridge deck formwork; the detachable fixing member is provided on the side of the horizontal beam close to the steel plate to fix the horizontal beam to the steel plate.

[0006] In the embodiment of this specification, one end of the vertical beam in the corbel bracket supporting the steel beam cast-in-place bridge deck formwork protrudes from the crossbeam and contacts the bottom surface of the steel plate of the bridge deck formwork, and the crossbeam contacts the bottom surface of the square timber protruding from the bottom surface of the bridge deck formwork. The contact area between the entire bracket and the bottom surface of the bridge deck formwork is larger, and the support is more stable. At the same time, the space between the crossbeam and the steel plate is reasonably utilized, and a detachable fixing part is set between the crossbeam and the steel plate to fix the entire corbel bracket. There is no need for pre-embedded bolts or ear plates and other fixing devices. The bracket as a whole fits better with the bridge structure, and the installation and disassembly of the bracket is more efficient and convenient, reducing construction costs.

[0007] In some embodiments, a reinforcement beam is further included, one end of the reinforcement beam is arranged on the oblique beam, and the other end is arranged on the horizontal beam or the vertical beam.

[0008] In some embodiments, a pad is provided at one end of the vertical beam that contacts the steel plate.

[0009] In some embodiments, a support member is further provided on one side of the crossbeam where the detachable fixing member is provided, and the support member is supported between the crossbeam and the steel plate.

[0010] In some embodiments, the detachable fixing member contacts the side of the support member.

[0011] In some embodiments, the crossbeam includes a fixed beam and an inclined beam, one end of the fixed beam is vertically connected to the vertical beam, and the other end is connected to one end of the inclined beam, and the inclined beam and the fixed beam are not located on the same straight line.

[0012] In some embodiments, the detachable fixing member includes a pull rod and a nut, the pull rod can pass through the beam and the steel plate, and the nut is used to fix the position of the pull rod after passing through the beam and the steel plate.

[0013] In some embodiments, the fixed beam includes two channel steels, the webs of the two channel steels are parallel to each other, and there is a gap between the webs, and the gap faces the pull rod and allows the pull rod to pass through.

[0014] In some embodiments, the detachable fixing member further includes a gasket, which is arranged between the nut and the steel plate and the fixing beam.

[0015] In some embodiments, one end of the reinforcement beam is arranged on the inclined beam, and the other end is arranged on the connection point between the fixed beam and the inclined beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the embodiments of the present specification will become readily understood by reading the following detailed description with reference to the accompanying drawings, in which several embodiments of the present specification are shown by way of example and not limitation.

[0017] Figure 1 A schematic structural diagram of a corbel bracket supporting a steel beam cast-in-situ bridge deck formwork according to an embodiment of this specification is shown;

[0018] Figure 2 A structural schematic diagram of a fixing beam 11 according to an embodiment of the present specification is shown.

[0019] 1- horizontal beam, 11- fixed beam, 111- channel steel, 12- support, 2- vertical beam, 21- pad, 3- inclined beam, 31- reinforcement beam, 4- steel plate, 5- removable fixings, 6- square timber.

[0020] In the various drawings, the same or corresponding reference numerals denote the same or corresponding parts. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0022] The term "including" and its variations used in this document indicate open inclusion, that is, "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one other embodiment". Terms such as "upper", "lower", "front", and "rear" indicating placement or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the principles of this specification, and do not indicate or imply that the referred elements must have a specific orientation, be constructed or operate in a specific orientation, and therefore should not be understood as limiting this specification.

[0023] A corbel bracket for supporting a steel beam cast-in-situ bridge deck formwork according to an embodiment of the present specification will be described in detail below with reference to the accompanying drawings. Figure 1A structural schematic diagram of a corbel bracket for supporting a steel beam cast-in-place bridge deck formwork according to an embodiment of the present specification is shown. The corbel bracket for supporting a steel beam cast-in-place bridge deck formwork according to an embodiment of the present specification comprises a horizontal beam 1, a vertical beam 2, an oblique beam 3 and a detachable fixing member 5, one end of the horizontal beam 1 is vertically connected to the side of the vertical beam 2, and maintains a certain distance from both ends of the vertical beam 2; one end of the oblique beam 3 is connected to the other end of the horizontal beam 1, and the other end of the oblique beam 3 is connected to one end of the vertical beam 2; the end of the vertical beam 2 not connected to the oblique beam 3 vertically contacts the steel plate 4 of the bridge deck formwork, and part of the horizontal beam 1 contacts the square wood 6 on the bottom surface of the bridge deck formwork; the detachable fixing member 5 is provided on the side of the horizontal beam 1 close to the steel plate 4 to fix the horizontal beam 1 on the steel plate 4.

[0024] The cross beam 1 is generally parallel to the bottom surface of the bridge deck template and is supported closely to the bottom surface of the bridge deck template. The end of the vertical beam 2 is supported in contact with the bottom surface of the bridge deck template. Figure 1 As shown, when the square timber 6 on the bottom surface of the bridge deck formwork protrudes downward, so that there is an upward groove space on the bottom surface of the bridge deck formwork, the existing corbel bracket cannot contact the top of the groove space well under such circumstances to achieve stable support. Therefore, the crossbeam 1 in the embodiment of this specification is not connected to the end of the vertical beam 2. Both ends of the vertical beam 2 protrude from the crossbeam 1. The end of the vertical beam 2 that is not connected to the diagonal beam 3 can extend into the groove space on the bottom surface of the bridge deck formwork and conflict with the steel plate 4 at the top of the groove space. At this time, the crossbeam 1 supports the square timber 6 on the bottom surface of the bridge deck formwork. The vertical distance between the crossbeam 1 and the steel plate 4 is the vertical height of the square timber 6. The contact area between the upper side of the entire bracket structure and the bottom surface of the bridge deck formwork is larger, and the support effect is better. The two ends of the diagonal beam 3 are not limited to being connected to the ends of the crossbeam 1 and the vertical beam 2. It is sufficient that they can form a stable triangular structure with the crossbeam 1 and the vertical beam 2. In addition, the entire bracket is connected to the steel plate 4 through the detachable fixing part 5, which makes full use of the groove space and does not require pre-embedded bolts, lugs and other components on the bridge deck and piers in advance. The installation and disassembly of the bracket are more efficient and convenient, and the installation and disassembly costs are also reduced.

[0025] Specifically, a pad 21 is provided at one end of the vertical beam 2 that contacts the steel plate 4. This increases the contact area between the vertical beam 2 and the steel plate 4. On the one hand, this increases the support stability of the vertical beam 2, making it less likely for the vertical beam 2 to shake; on the other hand, it reduces the pressure on the bottom of the steel plate 4, reducing wear during the support process. If only the end of the vertical beam 2 supports the steel plate 4, it is easy to affect the stability of the entire bracket due to unstable force. Therefore, further, a support member 12 is provided on the side of the crossbeam 1 where the detachable fixing member 5 is provided. The support member 12 supports between the crossbeam 1 and the steel plate 4, so that the entire bracket is stably fixed under the steel plate 4. The support member 12 can be a channel steel welded to the crossbeam 1. The two flanges of the channel steel contact the steel plate 4 and the crossbeam 1 respectively, and the web is perpendicular to the steel plate 4 and the crossbeam 1. The support member 12 can contact the detachable fixing member 5 on its side, and the two support each other to prevent left and right shaking.

[0026] In addition, a reinforcement beam 31 is connected within the triangle formed by the horizontal beam 1, the vertical beam 2 and the oblique beam 3. One end of the reinforcement beam 31 is arranged on the oblique beam 3, and the other end is arranged on the horizontal beam 1 or the vertical beam 2, so as to further reinforce the corbel bracket and increase the supporting stability of the entire bracket.

[0027] In order to make the crossbeam 1 adapt to the situation when the square wood 6 at the bottom of the bridge deck formwork has a certain tilt angle and make it fit the bridge deck formwork better, the crossbeam 1 includes a fixed beam 11 and an inclined beam. One end of the fixed beam 11 is vertically connected to the vertical beam 2, and the other end is connected to one end of the inclined beam. The inclined beam and the fixed beam 11 are not located on the same straight line. Specifically, Figure 1 As shown, when the square timber 6 at the bottom of the bridge deck formwork tilts upward, the inclined beam also tilts upward relative to the fixed beam 11, and the inclined beam and the fixed beam 11 are welded together. At this time, one end of the reinforcement beam 31 is provided on the inclined beam 3, and the other end is provided at the connection point between the fixed beam 11 and the inclined beam, thereby increasing the stability of the connection between the fixed beam 11 and the inclined beam.

[0028] Due to the presence of the groove space at the bottom of the bridge deck template, there is a certain distance between the crossbeam 1 and the steel plate 4, so the detachable fixing member 5 can be a tie rod and a nut. Holes are punched on the crossbeam 1 and the steel plate 4 so that the tie rod can pass through the crossbeam 1 and the steel plate 4, and the nut fixes the position of the tie rod after passing through the crossbeam 1 and the steel plate 4. In another embodiment, Figure 2As shown, the crossbeam does not need to be punched, and the fixed beam 11 is composed of two channel steels 111. The sides of the two channel steels 111 are welded to the vertical beam 2. The webs of the two channel steels 111 are parallel to each other and there is a gap between the webs. The gap faces the pull rod and allows the pull rod to pass through. The contact area between the pull rod and the fixed beam 11 is larger. The fixed beam 11 defines the position of the pull rod more firmly, and the pull rod is not easy to shake, further increasing the fixing stability. Specifically, the detachable fixing part 5 also includes a gasket, which is provided between the nut and the steel plate 4 and the fixed beam 11. On the one hand, it can better be stuck on both sides of the gap of the fixed beam 11 to increase the fixing stability of the pull rod. On the other hand, it plays a shock-absorbing and buffering role to increase the fastening force of the nut.

[0029] During the construction process, the support member 12 is first welded to the side surface of one end of the crossbeam 1, and the pad 21 is welded to the end of the vertical beam 2; then the end of the crossbeam 1 close to the support member 12 is vertically welded to the side surface 2 of the vertical beam to ensure that the height of the support member 12 is the same as the distance from the pad 21 to the crossbeam 1; then the two ends of the inclined beam 3 are respectively welded to the crossbeam 1 and the vertical beam 2, and the two ends of the reinforcement beam 31 are respectively welded to the inclined beam 3 and the crossbeam 1; finally, the detachable fixing member 5 is installed, and the entire bracket is fixed to the steel plate 4 through the detachable fixing member 5. At this time, the support member 12 and the pad 21 are in contact with the bottom surface of the steel plate 4 for support. After the entire bracket is installed, the square timber 6 is placed above the crossbeam 1, and a template is placed above the square timber 6 to form a steel beam bridge deck template. At this time, the entire bracket supports the steel plate 4, the square timber 6 and the template above it, and the support is more fitting and stable.

[0030] Although several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this specification. Certain features described in the context of separate embodiments may also be implemented in combination in a single implementation. Conversely, various features described in the context of a single implementation may also be implemented in multiple implementations individually or in any suitable subcombination.

[0031] Although the subject matter has been described in language specific to structural features and / or methodological logical acts, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are merely example forms of implementing the claims.

[0032] While the embodiments of the present disclosure have been described above, the above descriptions are illustrative, non-exhaustive, and not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the disclosed embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or technological improvements in the marketplace, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A bracket for supporting a steel beam cast-in-situ bridge deck formwork, characterized in that: The invention comprises a crossbeam (1), a vertical beam (2), an inclined beam (3) and a detachable fixing member (5), wherein one end of the crossbeam (1) is vertically connected to the side of the vertical beam (2) and maintains a certain distance from both ends of the vertical beam (2); one end of the inclined beam (3) is connected to the other end of the crossbeam (1), and the other end of the inclined beam (3) is connected to one end of the vertical beam (2); the end of the vertical beam (2) not connected to the inclined beam (3) vertically contacts the steel plate (4) of the bridge deck formwork, and part of the crossbeam (1) contacts the square wood (6) on the bottom surface of the bridge deck formwork; the detachable fixing member (5) is provided on the side of the crossbeam (1) close to the steel plate (4) to fix the crossbeam (1) on the steel plate (4).

2. A corbel bracket for supporting a steel beam cast-in-situ bridge deck formwork according to claim 1, characterized in that: It also includes a reinforcement beam (31), one end of the reinforcement beam (31) is arranged on the oblique beam (3), and the other end is arranged on the horizontal beam (1) or the vertical beam (2).

3. A corbel bracket for supporting a steel beam cast-in-situ bridge deck formwork according to claim 2, characterized in that: A pad (21) is provided at one end of the vertical beam (2) that contacts the steel plate (4).

4. A corbel bracket for supporting a steel beam cast-in-situ bridge deck formwork according to claim 3, characterized in that: A support member (12) is further provided on one side of the crossbeam (1) where the detachable fixing member (5) is provided. The support member (12) is supported between the crossbeam (1) and the steel plate (4).

5. A corbel bracket for supporting a steel beam cast-in-situ bridge deck formwork according to claim 4, characterized in that: The detachable fixing member (5) contacts the side of the supporting member (12).

6. The bracket for supporting a steel beam cast-in-situ bridge deck formwork according to claim 2, characterized in that: The crossbeam (1) comprises a fixed beam (11) and an inclined beam, one end of the fixed beam (11) is vertically connected to the vertical beam (2), and the other end is connected to one end of the inclined beam, and the inclined beam and the fixed beam (11) are not located on the same straight line.

7. A corbel bracket for supporting a steel beam cast-in-situ bridge deck formwork according to claim 6, characterized in that: The detachable fixing member (5) comprises a pull rod and a nut, wherein the pull rod can pass through the cross beam (1) and the steel plate (4), and the nut is used to fix the position of the pull rod after passing through the cross beam (1) and the steel plate (4).

8. The bracket for supporting a steel beam cast-in-situ bridge deck formwork according to claim 7, characterized in that: The fixed beam (11) comprises two channel steels (111), the webs of the two channel steels (111) are parallel to each other, and a gap exists between the webs, wherein the gap faces the pull rod and enables the pull rod to pass through.

9. The corbel bracket for supporting a steel beam cast-in-situ bridge deck formwork according to claim 8, characterized in that: The detachable fixing member (5) further includes a gasket, which is arranged between the nut and the steel plate (4) and the fixing beam (11).

10. The corbel bracket for supporting a steel beam cast-in-situ bridge deck formwork according to claim 6, characterized in that: One end of the reinforcement beam (31) is arranged on the inclined beam (3), and the other end is arranged on the connection point between the fixed beam (11) and the inclined beam.

Images