CN219992232U - Pointer type pushing and sliding construction system for bridge unilateral construction assembly - Google Patents

Abstract

The utility model relates to a pointer type pushing and sliding construction system for bridge unilateral construction assembly. The system comprises: a bridge body; the bridge pier supports one end of the bridge body in the pushing and sliding process, and the bridge body is cantilevered at the other end which is not supported by the bridge pier; the pointer type bracket is rotationally coupled to the other end of the cantilever of the bridge body through a first connecting node arranged on the bridge body; the ground foundation is used for supporting the pointer type bracket; the hydraulic crawler is arranged between the bridge pier and the bridge body; and the bridge body sliding rail is arranged below the bridge body, so that the bridge body slides to the target position under the combined action of the hydraulic crawler and the pointer type bracket. In this way, for the overhanging bridge which is limited by the site and is constructed and assembled on one side, the middle part of the bridge does not need to be erected with too many supporting frames, the construction period is reduced, and the economical efficiency is improved.

Description

Pointer type pushing and sliding construction system for bridge unilateral construction assembly

Technical Field

The utility model relates to the technical field of buildings in general, in particular to a pointer type pushing and sliding construction system for single-side construction assembly of a bridge.

Background

The pushing method is mainly based on a longitudinal dragging method of a steel beam, conventionally, a winch is used for traction, a jack is usually used for jacking, and a plate-type sliding device is used for developing and improving a construction scheme and a system of a bridge. The common pushing construction method is that a construction site is arranged behind the bridge pier, the assembled bridge body is pushed forwards by using a horizontal jack, a temporary sliding support is arranged at the top of the bridge pier for smooth pushing, and a temporary support frame is arranged in the middle of the bridge body for auxiliary operation.

In modern bridge construction, construction schemes and systems aiming at large-span bridges are more and more, but for large overhanging occurs only in the single-side assembly construction of the bridges and in the sliding process, normally running roads, the construction schemes and systems are usually to build up full-framing scaffold assembly or build up a plurality of support rack sliding bridges in the middle of the bridges.

The investment of the full framing and the supporting rack brings larger production management cost, aggravates the capital investment of projects, and simultaneously causes longer construction period to influence the use progress of the road.

Disclosure of Invention

The utility model aims to provide a pointer type pushing and sliding construction system for single-side construction assembly of a bridge, so as to at least partially solve the problems in the prior art.

According to a first aspect of the utility model, a pointer type pushing and sliding construction system for single-side construction assembly of a bridge is provided. The system comprises: a bridge body; the bridge pier supports one end of the bridge body in the pushing and sliding process, and the bridge body is cantilevered at the other end which is not supported by the bridge pier; the pointer type bracket is rotationally coupled to the other end of the cantilever of the bridge body through a first connecting node arranged on the bridge body; the ground foundation is used for supporting the pointer type bracket; the hydraulic crawler is arranged between the bridge pier and the bridge body; and the bridge body sliding rail is arranged below the bridge body, so that the bridge body slides to the target position under the combined action of the hydraulic crawler and the pointer type bracket.

The pushing and sliding construction system according to the embodiment of the first aspect provides a new scheme and a system for bridge construction which is large in cantilever and can only be constructed on one side in a non-ideal site construction environment in the bridge construction process. The system has the advantages of simple structure, small occupied construction site, applicability to complex environments and strong construction trafficability. Meanwhile, the pointer type bracket can be prefabricated in advance and is directly assembled and used on site. Moreover, different pointer type brackets can be reused among different strokes, so that the construction cost is further reduced, and the economic benefit is improved. Finally, the system has simple structure, short construction period and lower cost.

In some embodiments, the number of the pointer brackets is a plurality, and preferably 2, and after the first pointer bracket supports the bridge body and is pushed to advance the rotation stroke or part of the rotation stroke of the first pointer bracket by the hydraulic crawler, the second pointer bracket is installed and the first pointer bracket is removed, and then the hydraulic crawler continues to push the bridge body to advance one rotation stroke or part of the rotation stroke of the second pointer bracket, and the bridge body is reciprocated until the bridge body reaches the whole installation completion of the target bridge pier.

In some embodiments, the number of first connection nodes is a plurality and is disposed on the lower chord of the bridge.

In some embodiments, the bridge sled is disposed at a location of the bridge lower chord different from the first connection node.

In some embodiments, the pointer-type bracket is pivotally connected to the ground foundation via a second connection node.

In some embodiments, the bridge has a sufficient pre-set space at one end of the cantilever, the pre-set space being used for connection of the pointer type support to the bridge.

In some embodiments, the first connection node includes a connection tab and a pin.

In some embodiments, each of the plurality of first connection nodes is spaced a predetermined distance, and the predetermined distance is associated with a rotational travel of the pointer-type support.

In some embodiments, the bridge rail includes a deflection-preventing block at least partially disposed on the pier.

In some embodiments, the second connection node includes a porous connection ear plate and a plurality of pins, each pin of the plurality of pins corresponding to each hole in the porous connection ear plate.

In some embodiments, the number of ground foundations is 2 for alternately receiving the pointer type brackets to achieve support slip of the bridge. In such an embodiment, when the hydraulic crawler has a sufficiently large jacking force, the jacking construction process can be realized by only occupying a small occupied area of 2 ground foundations, the construction site is obviously reduced, and the capability of the structure for adapting to complex construction environments and pavements is greatly improved. In other embodiments, the number of ground foundations is multiple and is uniformly arranged in the direction in which the bridge extends, so that the pointer-type brackets can be continuously disposed on each ground foundation as the bridge extends. In further embodiments, the different pointer-type support structures may be at least partially different and may be jump-mounted in the respective ground foundation during construction to meet construction requirements in a variety of complex situations (e.g., local ground structure failure, local bridge structure damage, etc.).

It should be understood that the description in this summary is not intended to limit the critical or essential features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model. Other features of the present utility model will become apparent from the description that follows.

Drawings

The above, as well as additional purposes, features, and advantages of embodiments of the present utility model will become apparent in the following detailed written description and claims upon reference to the accompanying drawings. Several embodiments of the present utility model are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:

FIG. 1 is a schematic elevation view of a bridge construction system according to an exemplary embodiment of the present utility model;

FIG. 2 is a schematic illustration of a temporary splice holder and ground foundation completion according to an exemplary embodiment of the present utility model;

FIG. 3 is a schematic diagram of bridge construction according to an exemplary embodiment of the present utility model;

FIG. 4 is a schematic view of a first connection node of a bridge and a pointer-type support according to an exemplary embodiment of the present utility model;

fig. 5 is a schematic view of a bridge lower chord bridge rail and pier installation according to an exemplary embodiment of the present utility model;

FIG. 6 is a schematic illustration of a pointer-type stent connected to a bridge via a first connection node according to an exemplary embodiment of the present utility model;

FIG. 7 is a schematic illustration of a pointer-type cradle connected to a ground foundation via a second connection node according to an exemplary embodiment of the present utility model;

FIG. 8 is a first pointer-type bracket installed schematic diagram in accordance with an exemplary embodiment of the present utility model;

FIG. 9 is a diagram illustrating the completion of the swing of the first pointer-type bracket installed according to an exemplary embodiment of the present utility model;

FIG. 10 is a second pointer-type bracket mounting schematic diagram according to an exemplary embodiment of the present utility model;

FIG. 11 is a schematic diagram of bridge slip completion after first and second pointer-type brackets are removed and installed, according to an exemplary embodiment of the present utility model;

fig. 12 is a schematic view of reinstalling a first pointer type bracket according to an exemplary embodiment of the present utility model;

fig. 13 is a schematic diagram of the completion of the entire pushing slip of the bridge according to an exemplary embodiment of the present utility model.

Like or corresponding reference characters indicate like or corresponding parts throughout the several views.

Detailed Description

Embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the utility model is susceptible of embodiment in the drawings, it is to be understood that the utility model may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided to provide a more thorough and complete understanding of the utility model. It should be understood that the drawings and embodiments of the utility model are for illustration purposes only and are not intended to limit the scope of the present utility model.

In describing embodiments of the present utility model, the term "comprising" and its like should be taken to be open-ended, i.e., including, but not limited to. The term "based on" should be understood as "based at least in part on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The terms "first," "second," and the like, may refer to different or the same object. Other explicit and implicit definitions are also possible below.

As described above, the full framing and the support rack occupy a larger area, so that the requirements on construction sites are higher, the production investment is higher, the management cost is higher, the fund investment of projects is increased, meanwhile, a longer construction period is caused, the use progress of roads is affected, the existing scheme and system cannot be applied to the problems of bridge unilateral construction assembly, large overhanging at the front end of a bridge and the like. Meanwhile, in some specific construction occasions, the ground foundation can be set to be less in number, for example, 1 or 2, the bridge body is assembled by continuously utilizing the recursion function of different pointer type brackets, and the bridge body assembling device is suitable for bridge body assembling in a narrow construction environment.

An exemplary embodiment of the present utility model will be described in detail with reference to fig. 1 to 13.

Fig. 1 is an elevation schematic view of a bridge construction system according to an exemplary embodiment of the present utility model. As shown in fig. 1, the system integrally includes a bridge 1, a bridge pier 2, a pointer bracket 4, a hydraulic crawler 5, a ground foundation 6, and a bridge rail 7. The bridge body 1 is a large cantilever bridge body assembled on one side, one end of the large cantilever bridge body is firstly supported by the bridge pier 2, and the other end of the large cantilever bridge body is cantilever. That is, the bridge body 1 belongs to a cantilever bridge of one-sided construction. The bridge body 1 needs to be pushed and slipped to the bridge pier 2 positioned on the right side of the figure 1, so that the whole assembly is completed. In one embodiment, the bridge body 1 is not well constructed, such as in mountainous areas, marshes, or other similar areas, which is not conducive to building a support frame, scaffolding, or the like. The bridge body 1 may have a preset space at one end of the cantilever, and the preset space is used for connecting the pointer type bracket 4 with the bridge body 1.

In one embodiment, the bridge piers 2 may be prefabricated in advance at a proper position selected under a poor construction environment, and the number of the bridge piers 2 may be multiple according to actual engineering requirements, and the specific number of the bridge piers 2 may be specifically set according to engineering design schemes. The bridge pier 2 may be, for example, a concrete bridge pier, or any other suitable bridge pier, and the present utility model is not limited thereto. As shown in fig. 1, the left bridge pier 2 is used for supporting one end of the bridge body 1, and the right bridge pier is used for receiving the pushed and slipped bridge body 1, so that the bridge deck is paved completely.

In one embodiment, the system may further include a temporary assembling bracket 3, as shown in fig. 1, where the temporary assembling bracket 3 may be used to assemble one end of the bridge body 1 together with the pier 2, so that the temporary assembling bracket 3 may be optionally disposed in a construction environment capable of meeting the supporting requirement. The temporary assembly support 3 may be a scaffold support or any other suitable support, as long as the support and the assembly function can be achieved correspondingly, and the utility model is not limited thereto. In some embodiments, the temporary splice bracket 3 may be omitted, for example, when the bridge body 1 is relatively light and is supported by abutment against the pier 2.

In one embodiment, as shown in fig. 1, the pointer-type bracket 4 is disposed at an overhanging end of the bridge body 1, and one end thereof is coupled to the bridge body 1 to be pushed and slid, and the other end thereof is fixed on the ground foundation 6. The number of the pointer type brackets 4 can be multiple, for example, 2 as shown in fig. 1, and of course, the number can be set to other suitable numbers according to actual engineering requirements. The pointer type bracket 4 can support the bridge body 1 to be pushed and slipped to advance for a complete or partial rotation stroke and is detachable. In one embodiment, different ones of the plurality of pointer brackets 4 may be different in structure depending on the construction environment, and may be preferably partially identical or completely identical, so that the different pointer brackets 4 may be reused, improving material utilization, and saving construction costs.

In one embodiment, the number of the pointer brackets 4 corresponds to the number of the ground foundations 6, and after one pointer bracket 4 supports the bridge body 1 to complete the pushing slip of one or a part of the rotational stroke, the other pointer bracket 4 may continue to be coupled to the bridge body 1 to be further pushed slip. The original pointer-type bracket 4 can be removed at this time, and then the previous operation is further repeated, so that the other pointer-type bracket 4 completes the pushing and sliding of one or a part of the rotation stroke, and the above steps are repeated to complete the installation of the bridge body 1.

In one embodiment, as shown in fig. 1, the pointer-type support 4 may be coupled to the bridge body 1 through a first connection node 4-2, and the first connection node 4-2 may be provided on the bridge body 1, particularly, on a lower chord of the bridge body 1, and the number thereof may be plural. The adjacent ones of the plurality of first connecting nodes 4-2 may be spaced apart by a predetermined distance, which may be related to the distance of the ground foundation 6, such that the pointer-type stand may be enabled to travel a full or partial rotational stroke. In one embodiment, the first connection node 4-2 may be a tab and pin structure.

In one embodiment, as shown in fig. 1, the bridge slide rail 7 of the system is disposed at the lower chord of the bridge 1 and is located at the upper portion of the bridge pier 2, supported by the bridge pier 2. The bridge body 1 to be pushed and slipped can slide along the bridge body slide rail 7 under the pushing action of the hydraulic crawler 5. In one embodiment, the hydraulic crawler 5 is coupled to the bridge rail 7 at one end and to the bridge pier 2 at the other end.

In one embodiment, specifically, after the hydraulic crawler 5 pushes the bridge body 1 to be pushed and slipped, the bridge body 1 can push a swing stroke under the supporting action of the pointer type bracket 4. After the stroke of the current pointer type support 4 is finished, even if the hydraulic crawler 5 pushes forwards again, the current pointer type support 4 can play a role in reacting force at the moment, so that the pushing cannot be continued. At this time, a pointer type bracket 4 can be installed again, then the original bracket is removed, and the pushing process is repeated, so that the bridge body 1 can be pushed for a rotating stroke again. Thus, the entire installation of the bridge body 1 is completed.

In one embodiment, the pointer type support 4 may be a bar type architecture. The pointer type bracket 4 may be connected to a first connection node 4-2 provided on the lower chord of the bridge body 1. In one embodiment, the pointer-type bracket 4 may be pivotally secured to the ground foundation 6 via the second connection node 4-1. The pointer-type brackets 4 may be hollow and provided with a gap at the position of the first connection node with the bridge body 1 for alternate successive use of different brackets during construction. In some embodiments, the second connection node 4-1 may include a porous connection ear plate and a plurality of pins, each pin of the plurality of pins corresponding to each hole in the porous connection ear plate.

Fig. 2 is a schematic diagram of the temporary splice holder 3 and the ground foundation 6 according to an exemplary embodiment of the present utility model. In one embodiment, as shown in fig. 2, the temporary splice bracket 3, the bridge pier 2, the second connection node 4-1, and the ground foundation 6 may be prefabricated in advance and arranged in the manner shown in fig. 2. The temporary assembly bracket 3 and the bridge pier 2 are assembled at first in a traditional way, the left side part of the bridge body is assembled, and then the bridge body 1 is pushed to slide to the bridge pier 2 on the right side, so that the bridge body assembly is completed. The ground foundations 6 are arranged at predetermined intervals, the magnitude of which depends on the desired swing stroke of the push bridge 1. A second connection node 4-1 is provided on each ground foundation 6 for pivotally securing a subsequently mounted pointer-type bracket. It should be noted that, the setting of the pointer type support on the ground foundation 6 is not necessarily performed strictly in a left-to-right manner, but may be performed at intervals or partially from right to left according to the actual construction requirements, so as to ensure the construction flexibility. In fact, because the current construction system is compact in construction and highly modular, it is possible to secure construction flexibility, thereby enabling the structure to be efficiently constructed in a narrow environment.

In some embodiments, the number of ground foundations 6 is 2 for alternately pivotally coupling the pointer brackets to effect a supporting slip of the bridge. In such an embodiment, when the hydraulic crawler has a sufficiently large jacking force, the jacking construction process can be realized by only occupying a small occupied area of 2 ground foundations, the construction site is obviously reduced, and the capability of the structure for adapting to complex construction environments and pavements is greatly improved. In other embodiments, the number of ground foundations 6 is plural and uniformly arranged in the direction in which the bridge extends, so that the pointer-type brackets 4 can be continuously disposed on the respective ground foundations as the bridge extends. In further embodiments, the different pointer-type brackets 4 structures may be at least partially different and may be jump-mounted in the respective ground foundation during construction to meet construction requirements in a variety of complex situations (e.g., local ground structural failure, local bridge structure damage, etc.).

Fig. 3 is a schematic diagram of bridge construction according to an exemplary embodiment of the present utility model. As shown in fig. 3, in one embodiment, the bridge body 1 is assembled at the upper parts of the bridge pier 2 and the temporary assembling bracket 3, a part of the end part of the bridge body 1 is overhung, and the first connecting node 4-2 of the pointer type bracket is installed at the lower chord of the bridge body at the overhanging part, and the first connecting node can be, for example, a connecting lug plate as described above.

Fig. 4 is a schematic view of a first connection node of a bridge and a pointer-type bracket according to an exemplary embodiment of the present utility model. As shown in fig. 4, the lower side of the bridge body 1 is provided with first connection nodes 4-2, although only one is shown in fig. 4, the number of the first connection nodes 4-2 may be plural and provided on the lower chord of the bridge body 1, and the bridge slide rail 7 is provided at a position different from the first connection nodes 4-2 on the lower chord of the bridge body 1.

Fig. 5 is a schematic view illustrating installation of the bridge lower chord bridge rail 7 and the bridge pier 2 according to an exemplary embodiment of the present utility model. In one embodiment, as shown in fig. 5, the bridge sliding rail 7 may be installed at the lower chord of the bridge, and the bridge sliding rail 7 is placed at the upper portion of the bridge pier 2. The bridge body sliding rail 7 is provided with a deflection-preventing guide block, and the deflection-preventing guide block is at least partially arranged on the bridge pier 2 to prevent the bridge body sliding rail 7 from deviating from the preset extending direction of the bridge body in the pushing sliding process.

Fig. 6 is a schematic diagram illustrating the connection of the pointer type bracket 4 with the bridge body 1 via the first connection node 4-2 according to an exemplary embodiment of the present utility model. In the embodiment shown in fig. 6, the pointer type bracket 4 is connected with the bridge body 1 by adopting a first connection node 4-2, and the first connection node 4-2 can adopt an ear plate and pin structure. In such an embodiment, rapid splicing of the structures can be achieved and reusability of the assembly members is strong. It should be appreciated that any other suitable structure in the art may be used to implement the connection of the first connection node 4-2 of the pointer type support 4 to the bridge 1, and the present utility model is not limited in this respect.

Fig. 7 is a schematic view of the basic connection of the pointer-type stand 4 with the ground 6 via the first connection node 4-2 according to an exemplary embodiment of the present utility model. In this embodiment, the pointer-type bracket 4 is pivotally connected to the ground foundation 6 using a second connection node 4-1. In such an embodiment, the removal of the pointer type bracket 4 is facilitated, and the construction speed and efficiency can be improved. In some embodiments, the second connection node 4-1 may include a porous connection ear plate and a plurality of pins, each pin of the plurality of pins corresponding to each hole in the porous connection ear plate. Thus, a ground foundation 6 can receive a plurality of pointer brackets 4 (e.g., 7 as shown), further enhancing the ability of the system to be constructed in a small field.

Fig. 8 is a first pointer-type bracket installation completion diagram according to an exemplary embodiment of the present utility model. As shown in fig. 8, the bridge body 1, the pointer type stand 4, the hydraulic crawler 5, and the ground foundation represent the same components as those of fig. 1, and the description thereof will not be repeated. In one embodiment, as shown in fig. 8, the pointer-type bracket 4 is mounted on the ground foundation 6, and at this time, the pointer-type bracket 4 is offset to the left, so as to support the bridge body 1 to be pushed and slipped. When pushing and sliding are carried out, the hydraulic crawler 5 jacks up the bridge body 1 and provides forward thrust, and the pointer type support 4 supports the bridge body 1 to swing at the same time, so that the sliding of the bridge body 1 is realized.

Fig. 9 is a swing completion diagram of the installation of the first pointer type bracket according to an exemplary embodiment of the present utility model. As shown in fig. 9, the bridge body 1, the pointer type stand 4, the hydraulic crawler 5, and the ground foundation represent the same components as those in fig. 1, and the description thereof will not be repeated. As shown in fig. 9, after the pointer type bracket 4 supports the bridge body 1 to start swinging for one stroke, the swinging direction of the pointer type bracket 4 tightens the bridge body 1 towards the right, at this time, the hydraulic crawler 5 cannot push the bridge body 1, and the pointer type bracket 4 swings to complete a complete stroke. The bridge body 1 completes a pushing sliding. It should be appreciated that in other embodiments, the pointer type support may also oscillate to complete a partial rotational stroke.

Fig. 10 is a second pointer-type bracket mounting schematic diagram according to an exemplary embodiment of the present utility model. As shown in fig. 10, the bridge body 1, the pointer type stand 4, the hydraulic crawler 5, and the ground foundation 6 represent the same components as those of fig. 1, and the description thereof will not be repeated. As shown in fig. 10, in one embodiment, after the initial pointer-type bracket swings one rotation stroke, the bridge 1 is in a force balance state and cannot be pushed further. At this time, the second pointer type bracket is installed in such a manner that the first pointer type bracket 4 is installed, and the pointer type bracket 4 at this time tightens the bridge body 1 through the pointer type bracket 4.

Fig. 11 is a schematic diagram showing bridge slip completion after the first and second pointer-type brackets are removed and installed according to an exemplary embodiment of the present utility model. As shown in fig. 11, the bridge body 1, the pointer type stand 4, the hydraulic crawler 5, and the ground foundation represent the same components as those of fig. 1, and the description thereof will not be repeated. In this embodiment, the first pointer type bracket may be removed and then the bridge body 1 is slid again by one pointer type stroke under the support of the bracket in such a manner that the bridge body 1 is slid by one rotational stroke by the previous first pointer type bracket support. Thus, the bridge body 1 is mounted.

Fig. 12 is a schematic view of reinstalling the first pointer type bracket according to an exemplary embodiment of the present utility model. As shown in fig. 12, the bridge body 1, the pointer type stand 4, the hydraulic crawler 5, and the ground foundation 6 represent the same components as those of fig. 1, and the description thereof will not be repeated. In the embodiment shown in fig. 12, the first pointer type holder is again installed after the second pointer type holder completes the swing stroke. It can be seen that in fig. 12, the first pointer-type bracket 4 may be located on the left side of the second pointer-type bracket, where it may support the first connection node of the bridge body 1 relatively close to the temporary splice bracket 3. In other embodiments, the first pointer type bracket may be disposed on the right side of the second pointer type bracket to slidably support the bridge body 1. In a preferred embodiment, the number of the first connecting nodes is just 2, so that the bridge body can slide completely by mounting and dismounting the first pointer type support and the second pointer type support back and forth between the 2 first connecting nodes, the pushing sliding of the bridge body can be completed with the minimum construction site, and the complex environment applicability of the construction system is remarkably improved.

Fig. 13 is a schematic diagram of the completion of the entire pushing slip of the bridge according to an exemplary embodiment of the present utility model. As shown in fig. 13, when the end of the bridge body slides to the target bridge pier, the pointer type bracket and the first connecting node are removed, the pushing bridge body is constructed, and the bridge body is supported by the bridge pier, so that pushing and sliding are carried out in place. And (3) removing the sliding rail, and enabling the bridge body to fall on the upper part of the bridge pier, so that the construction is completed, and the whole bridge structure shown in fig. 13 is formed.

In some embodiments, the construction process of the pointer type pushing sliding construction system for single-side construction assembly of the bridge provided by the utility model comprises the following steps: presetting a pier, a temporary assembly bracket and a plurality of ground foundations, wherein each foundation of the plurality of ground foundations is used for connecting a pointer type bracket, and the pier, the temporary assembly bracket and the pointer type bracket are used for assembling a bridge body and the bridge body comprises a lower chord; assembling one end of the bridge body by utilizing the bridge pier and the temporary assembling bracket, and overhanging the other end of the bridge body at the ground foundation; a plurality of first connecting nodes used for being connected with the pointer type support are arranged on the lower chord of the overhanging end of the bridge body, and a bridge sliding rail is arranged at the position, different from the first connecting nodes, of the lower chord of the overhanging end of the bridge body, wherein adjacent nodes in the first connecting nodes are spaced at preset distances; connecting one end of the current pointer type bracket to one overhanging end of the bridge body through one node in the first connecting nodes and connecting the other end of the current pointer type bracket to a ground foundation; pushing the bridge body by utilizing a hydraulic crawler to slide the rotation stroke of the current pointer type bracket through a bridge body sliding rail, wherein the hydraulic crawler is arranged between the bridge pier and the bridge body; connecting one end of the other pointer type bracket to the bridge body via the other first connecting node and the other end of the other pointer type bracket to the ground foundation, and dismantling the current pointer type bracket; the pushing bridge body is continuously pushed to slide the rotating stroke of the other pointer type support through the sliding rail of the bridge body, and the pushing bridge body is reciprocated until the assembly of the bridge body is completed.

The pushing and sliding construction system according to the embodiment of the second aspect of the utility model provides a brand new mode for the condition that the bridge body is larger in cantilever and the site construction environment is not ideal and only one side construction is possible. The system can be suitable for complex construction environments, and system components adopted by the system have higher prefabrication performance and reusability, so that the construction cost can be obviously reduced, and the construction trafficability is strong. Meanwhile, the system is short in construction period, road occupation time is reduced, and economic benefit is improved.

In some embodiments, continuing to push the bridge to slide the rotational travel of the other pointer type support via the bridge sliding rail, so reciprocating until the bridge assembly is completed comprises: when the overhanging end of the bridge body reaches the pier at the end position, the pointer type support is removed, and pushing and sliding are carried out by continuously utilizing the pier support at the end position.

In some embodiments, the number of ground foundations is 2 for alternately receiving the pointer type brackets to achieve support slip of the bridge. In a more preferred embodiment, the number of ground foundations is 1, and 1 ground foundation supports two pointer brackets in turn. In such an embodiment, when the hydraulic crawler has a sufficiently large jacking force, the jacking construction process can be realized by taking up only a small occupied area of 1 or 2 ground foundations, the construction site is remarkably reduced, and the capability of the structure to adapt to complex construction environments and pavements is greatly improved. In other embodiments, the number of ground foundations is multiple and is uniformly arranged in the direction in which the bridge extends, so that the pointer-type brackets can be continuously disposed on each ground foundation as the bridge extends. In further embodiments, the different pointer-type support structures may be at least partially different and may be jump-mounted in the respective ground foundation during construction to meet construction requirements in a variety of complex situations (e.g., local ground structure failure, local bridge structure damage, etc.).

While several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the utility model. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination.

Moreover, although operations are depicted in a particular order, this should be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the utility model. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination.

The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (9)

1. A pointer type pushing slip construction system for bridge unilateral construction is assembled, which is characterized by comprising:

a bridge body (1);

the bridge pier (2) supports one end of the bridge body (1) in the pushing and sliding process, and the bridge body (1) is cantilevered at the other end which is not supported by the bridge pier (2);

a pointer bracket (4) rotatably coupled to the other end of the bridge body (1) overhanging via a first connection node (4-2) provided on the bridge body (1);

a ground foundation (6) for supporting the pointer type support (4);

the hydraulic crawler (5) is arranged between the bridge pier (2) and the bridge body (1); and

the bridge body sliding rail (7) is arranged below the bridge body (1), so that the bridge body (1) slides to a target position under the combined action of the hydraulic crawler (5) and the pointer type bracket (4).

2. The system according to claim 1, characterized in that the number of first connection nodes (4-2) is plural and arranged on the lower chord of the bridge body (1).

3. The system according to claim 2, characterized in that the bridge slide (7) is arranged at a position of the bridge (1) lower chord different from the first connection node (4-2).

4. The system according to claim 1, characterized in that the pointer-type support (4) is pivotally connected with the ground foundation (6) via a second connection node (4-1).

5. The system according to claim 1, characterized in that the bridge (1) has a preset space at one end of the cantilever, said preset space being used for the connection of the pointer support (4) with the bridge (1).

6. The system according to claim 1, wherein the first connection node (4-2) comprises a connection ear plate and a pin shaft.

7. The system according to claim 2, characterized in that each of a plurality of the first connection nodes (4-2) is spaced apart by a predetermined distance, and the predetermined distance is associated with a rotational travel of the pointer-type support (4).

8. System according to claim 1, characterized in that the bridge slide (7) comprises an anti-deflection block, which is at least partially arranged on the bridge pier (2).

9. The system according to claim 4, wherein the second connection node (4-1) comprises a porous connection ear plate and a plurality of pins, each pin of the plurality of pins corresponding to each hole of the porous connection ear plate.