Supporting device for bridge erecting machine of spliced wide bridge

Abstract

The utility model relates to a supporting device for a bridge erecting machine of a spliced wide bridge, which comprises a supporting frame, the supporting frame comprises a plurality of supporting columns, a plurality of supporting cross beams, a plurality of connecting assemblies and a supporting beam used for supporting the bridge erecting machine, the supporting beam is arranged on the supporting columns along the horizontal direction, one end of the supporting beam is erected on an old bridge floor, and the other end of the supporting beam is erected on the old bridge floor. The bottom ends of the supporting columns are arranged on a cover beam of the spliced wide bridge, the supporting cross beams are arranged between every two adjacent supporting columns in the horizontal direction, and the connecting assemblies are arranged between the supporting columns and the supporting cross beams. By means of the specific structural arrangement of the connecting assembly, the problems that an existing supporting device is too large and not convenient to disassemble subsequently, so that a special tool needs to be arranged for transportation arrangement, construction difficulty is large or the supporting device cannot be used and is difficult to coordinate, and meanwhile construction cost is too high are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction bridging, in particular to a supporting device for a bridge widening bridging machine. BACKGROUND

[0002] With the acceleration of urbanization construction in China, in order to meet the economic development, many local roads need to be reconstructed and expanded.

[0003] At present, there are many old bridge widening reconstruction projects. When the width of some prefabricated beam old bridges is insufficient, widening reconstruction is needed. Since the widened bridge deck is generally in the range of 2-5m width, the same beam slab structure as the original bridge is adopted, and the prefabricated T-beam or small box girder is generally used. Most projects adopt the method of closing traffic and using two cranes to cooperatively work to install the prefabricated beam slab. However, this method has great risks, and the cooperative work of two cranes is prone to major safety accidents. At the same time, traffic needs to be closed, which has a great social impact. Therefore, this method is not the best choice. Here, a method of installing beams by using a conventional bridging machine is born. However, there is a transverse height difference (the height difference is mainly the height of the prefabricated beam slab) between the original old bridge deck and the newly built widened bridge pier. The conventional bridging machine cannot meet the basic width requirement of the conventional bridging machine beam operation on the 2-4m pier column cap beam width. Therefore, the bridging machine track needs to be temporarily raised on the top of the newly built bridge pier cap beam by using the old bridge part of the road width for beam operation (half of the bridging machine track is on the old bridge road surface, and the other half is supported on the temporary support pier). However, there is a large transverse height difference (beam height). If the original sleeper support is used for the bridging machine track, it will greatly increase the risk of instability of the support, leading to the overturning of the bridging machine. Therefore, the track support on the top of the newly built bridge pier cap beam needs to be temporarily raised. Since the support device is increased, the support device needs to have sufficient support strength. Therefore, a steel pipe support is used. However, the steel pipe support is usually welded at the connection position, which makes the support device too large and inconvenient for subsequent disassembly, resulting in the need to arrange special tools for transportation and arrangement, which also causes great difficulty in construction or cannot be used, and is difficult to coordinate. At the same time, the construction cost is too high.

[0004] Therefore, in order to solve the above problems, a supporting device for a bridge widening bridging machine is needed, which can meet the support strength requirement while achieving lightweight setting of the support device, improve the disassembly efficiency of the support device, save construction cost, etc. UTILITY MODEL CONTENTS

[0005] To solve the above problems, the utility model provides a supporting device for a bridge widening bridging machine.

[0006] The supporting device for a bridge widening bridging machine provided by the utility model adopts the following technical scheme:

[0007] A support device for a bridge widening bridge erecting machine, comprising a support frame, the support frame comprising a plurality of support columns, a plurality of support beams, a plurality of connecting assemblies, and a support beam for supporting the bridge erecting machine, the support beam being arranged on the support columns in a horizontal direction, one end of the support beam being arranged on an old bridge deck, the bottom end of the support column being arranged on a bent cap of the widened bridge, the support beam being arranged between two adjacent support columns in a horizontal direction, and the connecting assembly being arranged between the support column and the support beam.

[0008] The connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece comprises a main body portion, a first limiting portion, a second limiting portion, a first vertical portion, and a second vertical portion, the main body portion is in an arc-shaped structure, the first limiting portion and the second limiting portion are respectively arranged outwardly along opposite ends of the main body portion, the first vertical portion and the second vertical portion are both arranged outwardly along the outer arc end surface of the main body portion, the first vertical portion and the second vertical portion have a first gap therebetween, the first connecting piece and the second connecting piece are arranged in mirror symmetry, and the inner arc end surface of the main body portion of the first connecting piece is arranged in alignment with the inner arc end surface of the main body portion of the second connecting piece.

[0009] In some embodiments, in the first connecting piece, the width of the first limiting portion presents a decreasing change trend from one end located on the side of the main body portion to the other end.

[0010] The end surface of the first limiting portion of the first connecting piece towards the side of the second connecting piece is a plane.

[0011] In some embodiments, in the first connecting piece, the arc length ratio of the connection between the first limiting portion and the main body portion to the arc length of the entire outer arc end surface of the main body portion is between 0.03 and 0.1.

[0012] In some embodiments, in the first connecting piece, the end surface of the first limiting portion away from the side of the second connecting piece and the outer arc end surface of the main body portion are connected smoothly.

[0013] In some embodiments, in the first connecting piece, a reference plane is defined, the first vertical portion and the second vertical portion are arranged symmetrically around the reference plane, and the reference plane passes through the center of the main body portion in the radial direction of the main body portion.

[0014] In some embodiments, in the first connecting piece, the arc length ratio of the connection between the first vertical portion and the main body portion to the arc length of the entire outer arc end surface of the main body portion is between 0.015 and 0.03.

[0015] In some embodiments, a first limiting area is formed between the inner arc end face of the body part of the first connecting piece and the inner arc end face of the body part of the second connecting piece, a first fastening area is formed between the first limiting part of the first connecting piece and the first limiting part of the second connecting piece, a second fastening area is formed between the second limiting part of the first connecting piece and the second limiting part of the second connecting piece, the connecting assembly is fixed on the support column through the first limiting area, and the opposite two ends of the support cross beam are respectively inserted into the first gap of one of the connecting assemblies and locked.

[0016] In some embodiments, a support inclined beam is further arranged between the two connecting assemblies arranged in an up-down staggered manner along the vertical direction of the support column, and the opposite two ends of the support inclined beam are respectively inserted into the first gap of one of the connecting assemblies and locked.

[0017] To solve the above problems, the utility model has the following advantages:

[0018] Through the technical scheme of the application, the support column and the support cross beam can be fixed more tightly, and a complex connecting assembly structure does not need to be designed; and through the structural design of the connecting assembly, the weight of the support device can be reduced under the premise of meeting the safety strength, so as to meet the lightweight design of the support device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A structure schematic view of a support device of a spliced bridge girder bridge erecting machine arranged on a bent cap of a spliced bridge is shown;

[0020] Figure 2 A structure schematic view of a connecting assembly shown in Figure 1 is shown;

[0021] Figure 3 A structure schematic view of a connecting assembly shown in Figure 2 is shown.

[0022] Fig. 01 is a support frame; Fig. 11 is a support column; Fig. 12 is a support cross beam; Fig. 13 is a support beam; Fig. 14 is a connecting assembly; Fig. 141 is a first connecting piece; Fig. 1411 is a body part; Fig. 1412 is a first limiting part; Fig. 1413 is a second limiting part; Fig. 1414 is a first vertical part; Fig. 1415 is a second vertical part; Fig. a is a first gap; Fig. b is a first limiting area; Fig. c is a first fastening area; Fig. d is a second fastening area; Fig. 142 is a second connecting piece; and Fig. 15 is a support inclined beam. DETAILED DESCRIPTION

[0023] The present disclosure will now be discussed with reference to a number of exemplary embodiments. It is to be appreciated that these embodiments are discussed only for illustration and that the present disclosure is thus not limited to any embodiment discussed herein.

[0024] As used herein, the term "includes" and its variants are to be read to be synonymous with "comprises" and its variants. The term "based on" is to be interpreted as "based, at least in part, on." The terms "one embodiment" and "an embodiment" are to be interpreted to mean "at least one embodiment." The term "another embodiment" is to be interpreted to mean "at least one other embodiment." The terms "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," "longitudinal," and the like, shall mean the orientation or position as shown in the drawings. These terms are merely used to better describe the application and its embodiments and are not used to limit the orientation or position of the devices, elements or components as indicated. Also, these terms can be used to indicate other meanings, for example, the term "upper" can also mean "top" in some instances. The specific meanings of these terms in the present application can be understood based on the specific context in which they are used. Furthermore, the terms "mount," "provide," "have," "set," "connect," "couple," "link" shall be construed broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium; or it can be internal connection between two devices, elements or components. The specific meanings of these terms in the present application can be understood by those skilled in the art based on the specific context in which they are used. Furthermore, the terms "first," "second," etc. are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "a plurality" is two or more.

[0025] The present embodiment discloses a support device for a bridge widening bridge erecting machine, such as Figures 1 to 3As shown, the support frame 01 comprises a plurality of support columns 11, a plurality of support beams 12, a plurality of connecting assemblies 14 and a support beam 13 for the support frame 01 bridge machine, the support beam 13 is arranged on the support column 11 in the horizontal direction, one end of the support beam 13 is arranged on the old bridge deck, the bottom end of the support column 11 is arranged on the bent cap of the widened bridge, the support beam 12 is arranged between two adjacent support columns 11 in the horizontal direction, and the connecting assembly 14 is arranged between the support column 11 and the support beam 12.

[0026] The connecting assembly 14 comprises a first connecting piece 141 and a second connecting piece 142, the first connecting piece 141 comprises a main body portion 1411, a first limiting portion 1412, a second limiting portion 1413, a first vertical portion 1414 and a second vertical portion 1415, the main body portion 1411 is in an arc-shaped structure, the first limiting portion 1412 and the second limiting portion 1413 are respectively arranged outwardly along opposite ends of the main body portion 1411, the first vertical portion 1414 and the second vertical portion 1415 are both arranged outwardly along the outer arc end surface of the main body portion 1411, the first vertical portion 1414 and the second vertical portion 1415 have a first gap a therebetween, the first connecting piece 141 and the second connecting piece 142 are arranged in mirror symmetry, and the inner arc end surface of the main body portion 1411 of the first connecting piece 141 is arranged in alignment with the inner arc end surface of the main body portion 1411 of the second connecting piece 142.

[0027] Further, the inner arc end surface of the main body portion 1411 of the first connecting piece 141 and the inner arc end surface of the main body portion 1411 of the second connecting piece 142 form a first limiting area b therebetween, the first limiting portion 1412 of the first connecting piece 141 and the first limiting portion 1412 of the second connecting piece 142 form a first fastening area c therebetween, the second limiting portion 1413 of the first connecting piece 141 and the second limiting portion 1413 of the second connecting piece 142 form a second fastening area d therebetween, the connecting assembly 14 is fixed on the support column 11 through the first limiting area b, and the opposite ends of the support beam 12 are respectively inserted into the first gap a of one of the connecting assemblies 14 and locked.

[0028] In this embodiment, a support device for a widened bridge bridge machine is provided, one end of the support beam 13 is arranged on the old bridge deck, so that a small part of the emergency lane is occupied, and most of the old bridge deck can still be used normally, that is, the social influence of closing the traffic is reduced.

[0029] The support device comprises six support columns 11, eight support beams 12 and a plurality of connecting assemblies 14. The six support columns 11 are arranged in pairs and fixed to the deck beam of the widened bridge by screw locking. Along the length direction of the support device (i.e. the direction in which the three support columns 11 are arranged in sequence), each support column 11 has a connecting assembly 14 fixed to the upper and lower ends thereof. The connecting assembly 14 is sleeved on the support column 11 by surrounding the first connecting member 141 and the second connecting member 142 to form a first limiting area b. The first limiting part 1412 of the first connecting member 141 and the first limiting part 1412 of the second connecting member 142 are locked by a locking assembly to form a first fastening area c. The second limiting part 1413 of the first connecting member 141 and the second limiting part 1413 of the second connecting member 142 are locked by the locking assembly to form a second fastening area d. The inner arc end surface of the main body part 1411 of the first connecting member 141 and the inner arc end surface of the main body part 1411 of the second connecting member 142 are fastened to the outer surface of the support column 11, thereby fixing the connecting assembly 14 on the support column 11. Meanwhile, the support beam 12 is arranged between two adjacent support columns 11 in the horizontal direction. The opposite ends of the support beam 12 are inserted into the first gap a of the connecting assembly 14 of one of the support columns 11 and locked, so that one end of the support beam 12 is fixedly connected to the first vertical part 1414 and the second vertical part 1415 of the first connecting member 141, or one end of the support beam 12 is fixedly connected to the first vertical part 1414 and the second vertical part 1415 of the second connecting member 142. In the present application, the first vertical part 1414 and the second vertical part 1415 of the first connecting member 141 are provided with through holes. The support beam 12 can be fixed to the connecting assembly 14 by passing a pin shaft through the two through holes, so that the connection is stable and convenient for quick installation and disassembly.

[0030] Specifically, the first connecting piece 141 mainly consists of a main body part 1411, a first limiting part 1412, a second limiting part 1413, a first vertical part 1414 and a second vertical part 1415. The main body part 1411 is in an arc structure, so as to realize surface contact with the outer edge surface of the support column 11, thereby increasing the stress area and the friction force, and making the connecting assembly 14 more firmly fixed on the support column 11. The first limiting part 1412 and the second limiting part 1413 are respectively arranged outside the opposite ends of the main body part 1411, so that the first connecting piece 141 can be locked and connected with the second connecting piece 142 through the first limiting part 1412 and the second limiting part 1413. In this application, threaded holes are arranged on the first limiting part 1412 and the second limiting part 1413, so that the first connecting piece 141 can be locked and connected with the second connecting piece 142 through bolts. The first vertical part 1414 and the second vertical part 1415 are arranged outside the outer arc end surface of the main body part 1411, so that a first gap a is formed between the first vertical part 1414 and the second vertical part 1415, so as to make one end of the support beam 12 extend into the first gap a.

[0031] Specifically, the first connecting piece 141 and the second connecting piece 142 are arranged in mirror symmetry, and the inner arc end surface of the main body part 1411 of the first connecting piece 141 is arranged in alignment with the inner arc end surface of the main body part 1411 of the second connecting piece 142, thereby making the first connecting piece 141 and the second connecting piece 142 be enclosed and fixed on the support column 11 through the locking element.

[0032] In this embodiment, through the structural design of the connecting assembly 14, the weight of the connecting assembly 14 can be reduced under the premise of meeting the safety strength, thereby reducing the weight of the support device to meet the lightweight design of the support device. Secondly, the support column 11 and the support beam 12 can be fixed more tightly without the need to design a more complex structure of the connecting assembly 14. At the same time, the structural design of the connecting assembly 14 can facilitate quick assembly or disassembly of the support device, thereby improving the use efficiency.

[0033] In some embodiments, along the vertical direction of the support column 11, two connecting assemblies 14 arranged in up-down staggered manner are further provided with a support inclined beam 15, and the opposite ends of the support inclined beam 15 are respectively inserted into the first gap a of one of the connecting assemblies 14 and locked.

[0034] In the embodiment, in order to increase the structural stability of the support device, one connecting assembly 14 is further fixed above one of the two adjacent support columns 11, and one connecting assembly 14 is further fixed below the other support column 11, so that the two connecting assemblies 14 are arranged in a staggered manner in the up-down direction, and the overall structural strength and stability of the support device are further achieved and improved by arranging a support inclined beam 15 between the two connecting assemblies 14.

[0035] In some embodiments, in the first connecting piece 141, the width of the first limiting portion 1412 decreases from one end on the side where the main body portion 1411 is located to the other end, and the first limiting portion 1412 is symmetrically arranged with the second limiting portion 1413. Through the above arrangement, the first limiting portion 1412 has sufficient structural strength to support the locking function while reducing its weight to further meet the lightweight use requirement.

[0036] The end face of the first limiting portion 1412 of the first connecting piece 141 towards the side where the second connecting piece 142 is located is a plane. With this arrangement, the first limiting portion 1412 of the first connecting piece 141 and the first limiting portion 1412 of the second connecting piece 142 are tightly fastened, further improving the locking stability.

[0037] Further, the arc length ratio of the connection between the first limiting portion 1412 and the main body portion 1411 to the arc length of the outer arc end face of the entire main body portion 1411 is between 0.03 and 0.1.

[0038] Further, the end face of the first limiting portion 1412 away from the side where the second connecting piece 142 is located is smoothly connected with the outer arc end face of the main body portion 1411.

[0039] Further, in the first connecting piece 141, a reference plane is defined, the first vertical portion 1414 and the second vertical portion 1415 are symmetrically arranged around the reference plane, and the reference plane passes through the center of the main body portion 1411 along the radial direction of the main body portion 1411.

[0040] Further, the arc length ratio of the connection between the first vertical portion 1414 and the main body portion 1411 to the arc length of the outer arc end face of the entire main body portion 1411 is between 0.015 and 0.03.

[0041] In the embodiment, through the above arrangement, the overall weight of the first connecting piece 141 and the second connecting piece 142 can be further reduced, so that the connecting assembly 14 meets the lightweight use requirement.

[0042] In summary, through the above structure, the support column and the support beam can be fixed more firmly, and a complex connecting assembly is not needed; through the structure design of the connecting assembly, the weight of the support device can be reduced under the premise of meeting the safety strength, so as to meet the lightweight design of the support device.

[0043] It is obvious to a person skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

[0044] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A support device for a bridge widening bridge girder erection machine, comprising a support frame, characterized in that, The support frame comprises a plurality of support columns, a plurality of support beams, a plurality of connecting assemblies and a support beam for supporting the bridge machine, the support beam is arranged on the support column in the horizontal direction, one end of the support beam is arranged on the old bridge deck, the bottom end of the support column is arranged on the bent cap of the widened bridge, the support beams are arranged between two adjacent support columns in the horizontal direction, and the connecting assemblies are arranged between the support columns and the support beams. The connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece comprises a main body, a first limiting portion, a second limiting portion, a first vertical portion and a second vertical portion, the main body is in an arc-shaped structure, the first limiting portion and the second limiting portion are respectively arranged outwardly along opposite ends of the main body, the first vertical portion and the second vertical portion are both arranged outwardly along the outer arc end surface of the main body, the first vertical portion and the second vertical portion have a first gap therebetween, the first connecting piece and the second connecting piece are arranged in mirror symmetry, and the inner arc end surface of the main body of the first connecting piece is arranged in alignment with the inner arc end surface of the main body of the second connecting piece.

2. The support device for the bridge splicing and widening bridge girder erecting machine according to claim 1, characterized in that, In the first connecting piece, the width of the first limiting portion decreases from one end to the other end of the main body. The end surface of the first limiting portion of the first connecting piece towards the second connecting piece is a plane.

3. The support device for the bridge splicing and widening bridge girder erecting machine according to claim 2, characterized in that, In the first connecting piece, the arc length of the connection between the first limiting portion and the main body accounts for 0.03-0.1 of the arc length of the entire outer arc end surface of the main body.

4. The support device for the bridge splicing and widening bridge girder erecting machine according to claim 3, characterized in that, In the first connecting piece, the end surface of the first limiting portion away from the second connecting piece is connected to the outer arc end surface of the main body in a smooth manner.

5. The support device for the bridge splicing and widening bridge girder erecting machine according to claim 1, characterized in that, In the first connecting piece, a reference plane is defined, the first vertical portion and the second vertical portion are arranged in symmetry around the reference plane, and the reference plane passes through the center of the main body in the radial direction of the main body.

6. The support device for the bridge splicing and widening bridge girder erecting machine according to claim 5, characterized in that, In the first connecting piece, the arc length of the connection between the first vertical portion and the main body accounts for 0.015-0.03 of the arc length of the entire outer arc end surface of the main body.

7. The support device for a bridge splicing and widening bridge girder erecting machine according to claim 1, wherein The inner arc end surface of the main body of the first connecting piece and the inner arc end surface of the main body of the second connecting piece form a first limiting area, the first limiting portion of the first connecting piece and the first limiting portion of the second connecting piece form a first fastening area, the second limiting portion of the first connecting piece and the second limiting portion of the second connecting piece form a second fastening area, the connecting assembly is fixed to the support column through the first limiting area, and the opposite ends of the support beam are respectively inserted into the first gap of one of the connecting assemblies and locked.

8. The support device for the bridge splicing and widening bridge girder erecting machine according to claim 7, characterized in that, In the vertical direction of the support column, a support inclined beam is arranged between two connecting assemblies arranged in an up-down staggered manner, and the opposite ends of the support inclined beam are respectively inserted into the first gap of one of the connecting assemblies and locked.

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