CN116289632A - Pendulum type pushing and sliding construction system and method for bridge unilateral construction assembly - Google Patents

Pendulum type pushing and sliding construction system and method for bridge unilateral construction assembly Download PDF

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Publication number
CN116289632A
CN116289632A CN202310592226.4A CN202310592226A CN116289632A CN 116289632 A CN116289632 A CN 116289632A CN 202310592226 A CN202310592226 A CN 202310592226A CN 116289632 A CN116289632 A CN 116289632A
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China
Prior art keywords
bridge
pendulum
bridge body
support
pier
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Granted
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CN202310592226.4A
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Chinese (zh)
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CN116289632B (en
Inventor
王猛
李欣
秦杰
郭雅兴
柳锋
王文婷
李夏杰
宫富强
王森
宋汶笑
陈彦任
冯得海
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Beijing No 3 Construction Engineering Co Ltd
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Beijing No 3 Construction Engineering Co Ltd
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Priority to CN202310592226.4A priority Critical patent/CN116289632B/en
Publication of CN116289632A publication Critical patent/CN116289632A/en
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Publication of CN116289632B publication Critical patent/CN116289632B/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/23—Dune restoration or creation; Cliff stabilisation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention relates to a pendulum type pushing and sliding construction system and method for bridge unilateral construction assembly. The system comprises: a bridge body; the bridge comprises a bridge pier and a temporary assembly bracket, wherein the bridge pier and the temporary assembly bracket support one end of a 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 and the temporary assembly bracket; a pendulum type bracket swingably coupled to the other end of the bridge cantilever via a connection node provided on the bridge; the ground foundation is used for supporting and fixing the pendulum 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 a target position under the combined action of the hydraulic crawler and the pendulum 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 method has better economy.

Description

Pendulum type pushing and sliding construction system and method for bridge unilateral construction assembly
Technical Field
The invention relates to the technical field of buildings in general, in particular to a pendulum type pushing and sliding construction system and method for single-side construction assembly of a bridge.
Background
The pushing method is mainly 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 bridge construction method. 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, more and more construction methods are aimed at a large-span bridge, but for the construction of splicing only on one side of the bridge, large overhanging occurs in the sliding process, and a normally-running road surface is normally constructed by erecting a full-framing scaffold for splicing or erecting a plurality of support rack sliding bridges in the middle of the bridge.
The occupied area of the full framing and the supporting rack is large, the requirements on construction sites are high, the production investment is high, the management cost is high, the fund investment of projects is increased, meanwhile, a long construction period is caused, and the use progress of a road is affected.
Disclosure of Invention
The invention aims to provide a pendulum type pushing and sliding construction system and method 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 invention, a pendulum type pushing and sliding construction system for single-side construction assembly of a bridge is provided. The system comprises: a bridge body; the bridge comprises a bridge pier and a temporary assembly bracket, wherein the bridge pier and the temporary assembly bracket support one end of a 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 and the temporary assembly bracket; a pendulum type bracket swingably coupled to the other end of the bridge cantilever via a connection node provided on the bridge; the ground foundation is used for supporting and fixing the pendulum 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 a target position under the combined action of the hydraulic crawler and the pendulum type bracket.
The pushing and sliding construction system according to the embodiment of the first aspect of the invention can be suitable for the conditions that the suspension is large and the site construction environment is not ideal and only one side construction is possible 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 pendulum type bracket can be prefabricated in advance and can be directly assembled and used on site. Moreover, different pendulum type supports 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 pendulum supports is a plurality, and preferably 2, the first pendulum support suspends the bridge and after one pendulum stroke or part of the pendulum stroke is advanced by the hydraulic crawler, the second pendulum support suspends the bridge and then removes the first pendulum support, and the hydraulic crawler continues to push the bridge to advance one pendulum stroke or part of the pendulum stroke so as to reciprocate until the bridge reaches the target pier for all installation.
In some embodiments, the number of connection nodes is a plurality and is disposed on the upper chord of the bridge; and the bridge body sliding rail is arranged on the lower chord of the bridge body.
In some embodiments, the pendulum-type support includes slings for connecting the bridge.
In some embodiments, the pendulum support is connected to the ground foundation via pre-buried bolts.
In some embodiments, the pendulum-type brackets provide gaps at the connection node locations with the bridge for alternate successive use of different pendulum-type brackets.
In some embodiments, the connection node includes an ear plate and pin structure.
In some embodiments, each node of the plurality of connected nodes is spaced a predetermined distance, and the predetermined distance is associated with a pendulum stroke of the pendulum support.
In some embodiments, the bridge rail includes a deflection-preventing block at least partially disposed on the pier.
In some embodiments, the number of ground foundations is 2 groups for alternately receiving a pendulum support to effect traction slip of the bridge. In such an embodiment, the pushing construction process can be realized by only occupying a small occupied area of 2 groups of ground foundations, so that the construction site is obviously reduced, and the capability of the structure to adapt to complex construction environments and pavements is greatly improved.
According to a second aspect of the invention, a pendulum type pushing and sliding construction method for single-side construction assembly of a bridge is provided. The method comprises the following steps: the bridge body comprises an upper chord and a lower chord, wherein the bridge body comprises a bridge pier, a temporary assembling bracket and a plurality of ground foundations, each foundation of the plurality of ground foundations is used for being connected with a pendulum bracket, and the bridge pier, the temporary assembling bracket and the pendulum bracket are used for assembling the bridge body; 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 connecting nodes used for being connected with a pendulum type support are arranged on the upper chord of one overhanging end of the bridge body, and a bridge sliding rail is arranged on the lower chord of one overhanging end of the bridge body, wherein adjacent nodes in the plurality of connecting nodes are spaced by a preset distance; one end of the current pendulum type support is connected to the overhanging end of the bridge body through one of the connecting nodes, and the other end of the current pendulum type support is connected to the ground foundation; the hydraulic crawler is used for pushing the bridge body to slide a pendulum stroke of the current pendulum support through a bridge body sliding rail, and is arranged between the bridge pier and the bridge body; connecting one end of the other pendulum support to the bridge body via the other connecting node and the other end to the other ground foundation, and dismantling the current pendulum support; and continuing pushing the bridge body to slide a pendulum stroke of the other pendulum support through the bridge body sliding rail, and reciprocating the pendulum stroke until the bridge body assembly is completed.
The pushing and sliding construction method according to the embodiment of the second aspect of the invention 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 can be constructed on one side. The method can be suitable for complex construction environments, and the system components adopted by the method have higher prefabrication property and reusability, so that the construction cost can be obviously reduced, and the construction trafficability is strong. Meanwhile, the method is short in construction period, road occupation time is reduced, and economic benefit is improved.
In some embodiments, the number of ground foundations is 2 groups for alternately receiving different pendulum-type supports to achieve traction slip of the bridge. In such an embodiment, the pushing construction process can be realized by only occupying a small occupied area of 2 groups of ground foundations, so that the construction site is obviously reduced, the capability of the structure for adapting to complex construction environments and pavements is greatly improved, and meanwhile, the cost is greatly saved.
In some embodiments, continuing to push the bridge to slide the pendulum stroke of the other pendulum support via the bridge slide rail, such that reciprocating until bridge assembly is completed comprises: when one overhanging end of the bridge body reaches the pier at the other end, the pendulum type support is removed, and pushing and sliding are carried out by continuously utilizing the pier support at the other end.
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 invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
The above, as well as additional purposes, features, and advantages of embodiments of the present invention will become apparent in the following detailed written description and claims upon reference to the accompanying drawings. Several embodiments of the present invention 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 invention;
FIG. 2 is a schematic cross-sectional view of a bridge construction structure according to an exemplary embodiment of the present invention;
FIG. 3 is a schematic illustration of a temporary splice holder and ground foundation completion according to an exemplary embodiment of the present invention;
FIG. 4 is a schematic diagram of bridge construction according to an exemplary embodiment of the present invention;
fig. 5 is a schematic view of a bridge lower chord bridge rail and pier installation according to an exemplary embodiment of the present invention;
FIG. 6 is a schematic diagram of a pendulum-type support connection node and bridge connection according to an exemplary embodiment of the present invention;
FIG. 7 is a schematic diagram of a pendulum-type support connection node connected to a ground foundation according to an exemplary embodiment of the present invention;
FIG. 8 is a schematic diagram of a first pendulum support set-up completion according to an exemplary embodiment of the present invention;
FIG. 9 is a diagram of the completion of the swing of the mounting first pendulum support according to an exemplary embodiment of the present invention;
FIG. 10 is a second pendulum support set-up schematic diagram according to an exemplary embodiment of the present invention;
FIG. 11 is a schematic illustration of bridge slip completion after a first pendulum bracket is removed and a second pendulum bracket is installed, according to an exemplary embodiment of the present invention;
FIG. 12 is a schematic view of a reinstalling a first pendulum carrier according to an exemplary embodiment of the present invention;
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 invention.
Like or corresponding reference characters indicate like or corresponding parts throughout the several views.
Detailed Description
Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the invention is susceptible of embodiment in the drawings, it is to be understood that the invention 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 invention. It should be understood that the drawings and embodiments of the invention are for illustration purposes only and are not intended to limit the scope of the present invention.
In describing embodiments of the present invention, 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 method cannot be suitable for the problems of single-side construction assembly of bridges, large overhanging at the front ends of the bridges and the like, the system and the method are provided by the various embodiments of the invention, the pendulum type brackets are utilized to hang the bridge, meanwhile, the pushing device is utilized to enable the bridge to move forward for the swing stroke, and then different pendulum type brackets are utilized to continuously push the swing stroke forward, so that the bridge installation is realized reciprocally. Meanwhile, in some specific construction occasions, the ground foundation can be set to be fewer in number, for example, two ground foundations are assembled by continuously utilizing the recursion action of different pendulum brackets, and the bridge body assembling device is suitable for bridge body assembling in a narrow construction environment.
An exemplary embodiment of the present invention 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 invention. As shown in fig. 1, the system integrally comprises a bridge body 1, a bridge pier 2, a temporary assembly bracket 3, a pendulum bracket 4, a hydraulic crawler 5, a ground foundation 6 and a bridge body sliding 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 temporary assembling bracket 3, and the other end of the large cantilever bridge body is cantilevered. 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 complete installation is completed. In one embodiment, the bridge body 1 is located in a poor construction environment, such as a mountain area, a marsh area, etc., which is not conducive to building a supporting frame, a scaffold, etc.
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 invention 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, as shown in fig. 1, 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 satisfying 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 invention is not limited thereto.
In one embodiment, as shown in fig. 1, a pendulum-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 to a ground foundation 6. The number of pendulum supports 4 can be multiple, for example 2 as shown in fig. 1, but can be set to other suitable numbers according to actual engineering needs. The pendulum support 4 can pull the bridge body 1 to be pushed and slipped to advance for a complete or partial pendulum stroke and is detachable. In one embodiment, different brackets in the plurality of pendulum brackets 4 may have different structures depending on construction environments, and may be preferably partially identical or completely identical, so that different pendulum brackets 4 may be reused, material utilization is improved, and construction cost is saved.
In one embodiment, the number of pendulum supports 4 corresponds to the number of ground foundations 6, and after one pendulum support 4 supports a pushing slip of one or a portion of the pendulum stroke, the other pendulum support 4 may continue to couple to the bridge 1 to be pushed slip further. The original pendulum support 4 can be removed at this time, and then the previous operation is further repeated, so that the other pendulum support 4 completes the pushing and sliding of one or a part of pendulum 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 pendulum-type support 4 may be coupled to the bridge 1 by a connection node 4-2, the connection node 4-2 may be provided on the bridge 1, in particular on the upper chord of the bridge 1, and the number thereof may be plural. The adjacent ones of the plurality of connection nodes 4-2 may be spaced apart by a predetermined distance that may be related to the distance of the ground foundation 6, thereby enabling the pendulum support to oscillate through full or partial pendulum strokes. In one embodiment, the pendulum support 4 may be swingably coupled to the connection node 4-2 via slings 4-3. In this way, the pendulum bracket 4 can utilize the suspension and swing of the sling 4-3 to the bridge body 1, so that the bridge body 1 to be pushed and slipped can push the whole or part of pendulum stroke. Slings 4-3 may be made of any suitable material known in the art, as the invention is not limited in this regard. In one embodiment, the connection node 4-2 is an ear plate 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 traction action of the pendulum support 4. After the stroke of the current pendulum support 4 is finished, even if the hydraulic crawler 5 pushes forwards again, the current pendulum support 4 can play a role in reacting force at the moment, so that the pushing cannot be continued. At this time, a pendulum 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 push a pendulum stroke again. Thus, the entire installation of the bridge body 1 is completed.
In one embodiment, the pendulum support 4 may be a frame-type architecture. The pendulum support 4 can be connected to the bridge 1 by slings 4-3, in particular to a connection node 4-2 provided on the upper chord of the bridge 1. In one embodiment, the pendulum support 4 may be secured to the ground foundation 6 by pre-buried bolts 4-1. The pendulum-type brackets 4 may be hollow and provided with gaps at the connection node locations with the bridge body 1 for alternate successive use of the different brackets during construction.
Fig. 2 is a schematic cross-sectional view of a bridge construction structure according to an exemplary embodiment of the present invention. Referring to fig. 2, a pendulum-type bracket 4 is coupled to a bridge body 1 through slings 4-3, and the bridge body 1 is placed on a pier 2 and supported by the pier 2. During construction, the hydraulic crawler 5 pushes the bridge body 1, and the pendulum type support 4 drives the bridge body 1 to swing for one stroke, so that pushing and sliding are completed.
Fig. 3 is a completed schematic view of temporary splice holder 3 and ground foundation 6 according to an exemplary embodiment of the present invention. In one embodiment, as shown in fig. 3, the temporary splice bracket 3, the pier 2, the embedded bolts 4-1, and the ground foundation may be prefabricated in advance and arranged in the manner shown in fig. 3. 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 travel of the pushing bridge 1. Each ground foundation 6 is provided with a pre-buried bolt 4-1 for fixing a subsequently installed pendulum type bracket. It should be noted that, the arrangement of the pendulum type support on the ground foundation 6 is not necessarily strictly performed in a left-to-right manner, but may be performed at intervals or partially from right to left according to actual construction needs, so as to ensure construction flexibility.
Fig. 4 is a schematic diagram of bridge construction according to an exemplary embodiment of the present invention. As shown in fig. 4, 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 connection node 4-2 of the pendulum bracket 4 is installed on the upper chord of the bridge body at the overhanging part, and the connection node can be, for example, a connection lug plate. The embedded bolt 4-1 is arranged near the bridge body 1 to be pushed and slipped and is close to one overhanging end 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 invention. 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 showing the connection of the connection node 4-2 of the pendulum support 4 to the bridge 1 according to an exemplary embodiment of the present invention. In the embodiment shown in fig. 6, the pendulum-type bracket 4 is connected with the bridge body 1 by using slings 4-3, and 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 known in the art may be used to achieve the connection of the connection node 4-2 of the pendulum support 4 to the bridge 1, as the invention is not limited in this regard.
Fig. 7 is a schematic view of the basic connection of the connection node 4-2 of the pendulum support 4 with the ground 6 according to an exemplary embodiment of the present invention. In this embodiment, the pendulum support 4 is connected to the ground foundation 6 using pre-buried bolts 4-1. In such an embodiment, the removal of the pendulum bracket 4 is facilitated, and the construction speed and efficiency can be improved.
Fig. 8 is a schematic diagram of a first pendulum support set-up in accordance with an exemplary embodiment of the present invention. As shown in fig. 8, the bridge 1, the pendulum bracket 4, the slings 4-3, the hydraulic crawler 5, and the ground foundation 6 are identical to those shown in fig. 1, and will not be described again. In one embodiment, as shown in FIG. 8, the pendulum-type support 4 is mounted on the ground foundation 6, where the slings 4-3 are deflected to the left, tightly pulling the bridge 1 to be pushed to slip. When pushing and sliding are carried out, the hydraulic crawler 5 jacks up the bridge body 1 and provides forward thrust, and the sling 4-3 simultaneously pulls the bridge body 1 to start swinging, so that the sliding of the bridge body 1 is realized.
Fig. 9 is a diagram illustrating the completion of the swing of the first pendulum support according to an exemplary embodiment of the present invention. As shown in fig. 9, the bridge 1, the pendulum bracket 4, the slings 4-3, the hydraulic crawler 5, and the ground foundation 6 are identical to those shown in fig. 1, and will not be described again. As shown in fig. 9, after the sling 4-3 pulls the bridge 1 to start swinging for one stroke, the sling 4-3 tightens the bridge 1 on the right side, at this time, the hydraulic crawler 5 cannot push the bridge 1, and the pendulum type bracket swings to complete a complete stroke. It should be appreciated that in other embodiments, the pendulum support can also oscillate to complete a portion of the pendulum travel.
Fig. 10 is a second pendulum support set-up schematic diagram in accordance with an exemplary embodiment of the present invention. As shown in fig. 10, the bridge 1, the pendulum bracket 4, the slings 4-3, the hydraulic crawler 5, and the ground foundation 6 are identical to those shown in fig. 1, and will not be described again. As shown in fig. 10, in one embodiment, after the initial pendulum support swings one pendulum stroke, the bridge 1 is in a force balanced state and cannot be pushed further. At this time, the second pendulum type bracket is installed in such a manner that the first pendulum type bracket 4 is installed, and the pendulum type bracket 4 tightens the bridge 1 through the slings 4-3.
Fig. 11 is a schematic diagram of bridge slip completion after first pendulum type support removal and second pendulum type support installation according to an exemplary embodiment of the present invention. As shown in fig. 11, the bridge 1, the pendulum bracket 4, the slings 4-3, the hydraulic crawler 5, and the ground foundation 6 are identical to those shown in fig. 1, and will not be described again. In this embodiment, the first pendulum support can be removed and the bridge 1 can then be slid a pendulum stroke again under the traction of the support in such a way that the first pendulum support was previously pulling the bridge 1 to slide a pendulum stroke. Thus, the bridge body 1 is mounted.
Fig. 12 is a schematic view of reinstalling a first pendulum carrier according to an exemplary embodiment of the present invention. As shown in fig. 12, the bridge 1, the pendulum bracket 4, the slings 4-3, the hydraulic crawler 5, and the ground foundation 6 are identical to those shown in fig. 1, and will not be described again. In the embodiment shown in fig. 12, the first pendulum support is reinstalled after the second pendulum support completes the pendulum stroke. It can be seen that in fig. 12, the first pendulum support 4 can be located to the left of the second pendulum support, in which case it can pull the connection node of the bridge 1 relatively close to the temporary splice support 3. In other embodiments, the first pendulum support may be disposed on the right side of the second pendulum support, so as to perform sliding traction on the bridge 1. In a preferred embodiment, the number of the connecting nodes is 2, so that complete sliding of the bridge body can be realized by mounting and dismounting the first pendulum type support and the second pendulum type support in a reciprocating manner between the 2 groups of connecting nodes, the pushing sliding of the bridge body can be realized with the minimum construction site, and the complex environmental applicability of the construction system and method 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 invention. As shown in fig. 13, when the end of the bridge body slides to the target bridge pier, the pendulum type support and the connection node are removed, the pushing bridge body is constructed, and the bridge pier is used for supporting the bridge body, 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, a pendulum type pushing slip construction method for single-side construction assembly of a bridge is provided. In the method, firstly, a pier, a temporary assembly bracket and a plurality of ground foundations are preset, each foundation of the plurality of ground foundations is used for connecting a pendulum bracket, and the pier, the temporary assembly bracket and the pendulum bracket are used for assembling a bridge body, and the bridge body comprises an upper chord and a lower chord. And secondly, splicing one end of the bridge body by using the bridge pier and the temporary splicing bracket, wherein the other end of the bridge body at the ground foundation is overhanging as shown in figure 1. Next, a plurality of connection nodes for connection with the pendulum type support are installed on the upper chord of the overhanging end of the bridge body, and a bridge sliding rail is installed on the lower chord of the overhanging end of the bridge body, wherein adjacent nodes in the plurality of connection nodes are spaced by a preset distance. Further, one end of the current pendulum support is connected to the overhanging end of the bridge via one of the connection nodes and the other end is connected to the ground foundation. Then, the hydraulic crawler is used for pushing the bridge body to slide the pendulum stroke of the current pendulum support through the bridge body sliding rail, and the hydraulic crawler is arranged between the bridge pier and the bridge body. Next, one end of the other pendulum support is connected to the bridge via the other connection node and the other end is connected to the other ground foundation, and the current pendulum support is removed. Finally, the pushing bridge body is continuously pushed to slide a pendulum stroke of the other pendulum support through the bridge body sliding rail, and the pendulum stroke is reciprocated until the bridge body assembly is completed.
The embodiment provides a brand new mode for the condition that the bridge body is larger in cantilever and is only constructed on one side under the condition that the site construction environment is not ideal. The method can be suitable for complex construction environments, and the system components adopted by the method have higher prefabrication property and reusability, so that the construction cost can be obviously reduced, and the construction trafficability is strong. Meanwhile, the method is short in construction period, road occupation time is reduced, and economic benefit is improved.
In some embodiments, the number of ground foundations may be 2 groups for alternately receiving different pendulum-type supports for traction slip of the bridge. In such an embodiment, the pushing construction process can be realized by only occupying a small occupied area of 2 groups of ground foundations, so that the construction site is obviously reduced, the capability of the structure for adapting to complex construction environments and pavements is greatly improved, and meanwhile, the cost is greatly saved.
While several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the invention. 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 invention. 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 invention 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 (10)

1. A pendulum formula top pushes away construction system that slides for bridge unilateral construction is assembled which characterized in that includes:
a bridge body (1);
the bridge comprises a bridge pier (2) and a temporary assembling bracket (3), wherein the bridge pier (2) and the temporary assembling bracket (3) support one end of a 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) and the temporary assembling bracket (3);
a pendulum-type bracket (4) swingably coupled to the other end of the bridge (1) overhanging via a connection node (4-2) provided on the bridge (1);
a ground foundation (6) for supporting and fixing the pendulum support (4);
the hydraulic crawler (5) is arranged between the bridge pier (2) and the bridge body; 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 pendulum support (4).
2. The system according to claim 1, characterized in that the number of connection nodes (4-2) is plural and arranged on the upper chord of the bridge body (1); and
the bridge body sliding rail (7) is arranged on the lower chord of the bridge body (1).
3. The system according to claim 1, characterized in that the pendulum support (4) comprises slings (4-3) for connecting the bridge (1).
4. System according to claim 1, characterized in that the pendulum support (4) is connected to the ground foundation (6) via pre-buried bolts (4-1).
5. System according to claim 1, characterized in that the pendulum support (4) is provided with a gap at the location of the connection node (4-2) with the bridge (1) for the alternate successive use of different pendulum supports (4).
6. The system according to claim 1, characterized in that the connection node (4-2) comprises an ear plate and pin structure.
7. The system according to claim 2, wherein each of a plurality of said connection nodes (4-2) is spaced apart by a predetermined distance and said predetermined distance is associated with a pendulum stroke of said pendulum 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 pendulum type pushing and sliding construction method for bridge unilateral construction assembly is characterized by comprising the following steps of:
presetting a bridge pier (2), a temporary assembling bracket (3) and a plurality of ground foundations (6), wherein each foundation of the ground foundations (6) is used for connecting a pendulum bracket (4), and the bridge pier (2), the temporary assembling bracket (3) and the pendulum bracket (4) are used for assembling a bridge body (1) and the bridge body (1) comprises a top chord and a bottom chord;
assembling one end of the bridge body (1) by utilizing the bridge pier (2) and the temporary assembling bracket (3), wherein the other end of the bridge body (1) at the ground foundation (6) is overhung;
a plurality of connecting nodes (4-2) used for being connected with the pendulum type support (4) are arranged on the upper chord of the overhanging end of the bridge body (1) and a bridge body sliding rail (7) is arranged on the lower chord of the overhanging end of the bridge body (1), and adjacent nodes in the plurality of connecting nodes (4-2) are spaced by a preset distance;
connecting one end of a current pendulum support (4) to a overhanging end of the bridge body (1) via one of the connecting nodes (4-2) and the other end to the ground foundation (6);
pushing the bridge body (1) to slide a pendulum stroke of the pendulum type support (4) currently through the bridge body sliding rail (7) by utilizing a hydraulic crawler (5), wherein the hydraulic crawler (5) is arranged between the bridge pier (2) and the bridge body (1);
-connecting one end of a further pendulum support (4) to the bridge (1) via a further said connection node (4-2) and the other end to a further said ground foundation (6), and-removing the current pendulum support (4);
and pushing the bridge body (1) to slide a pendulum stroke of the other pendulum support (4) through the bridge body sliding rail (7) continuously, and reciprocating the pendulum stroke until the bridge body (1) is assembled.
10. Method according to claim 9, characterized in that continuing to push the bridge (1) through the bridge slide (7) for a pendulum stroke of the other pendulum support (4), so reciprocating until the bridge (1) assembly is completed, comprises:
when one overhanging end of the bridge body (1) reaches the pier (2) at the other end, the pendulum type support (4) is removed, and pushing and sliding are carried out by continuously using the pier (2) at the other end.
CN202310592226.4A 2023-05-24 2023-05-24 Pendulum type pushing and sliding construction system and method for bridge unilateral construction assembly Active CN116289632B (en)

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GB1237468A (en) * 1968-07-17 1971-06-30 Cie Ind De Travaux Method of advancing bridging structures
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CN106368129A (en) * 2016-11-24 2017-02-01 中冶建工集团有限公司 Pushing construction method of single-line railway steel truss bridge utilizing guide beam
CN107244388A (en) * 2017-05-17 2017-10-13 中铁十九局集团有限公司 Floating towboat and bridge erection system, method for installing girder steel
CN114657884A (en) * 2022-04-07 2022-06-24 广西路桥工程集团有限公司 Descending type movable formwork construction method for abutment assembling and segmented propelling
CN115387228A (en) * 2022-08-26 2022-11-25 中铁山桥(南通)有限公司 High-stability steel truss beam pushing and floating towing bracket construction method
WO2023016573A1 (en) * 2022-05-09 2023-02-16 中铁四局集团有限公司 Construction method for steel-concrete main girder of cable-stayed bridge

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1237468A (en) * 1968-07-17 1971-06-30 Cie Ind De Travaux Method of advancing bridging structures
KR20120049201A (en) * 2012-04-03 2012-05-16 원대연 Incremental launching method for the prestressed composite truss girder and its temporary support system
CN106368129A (en) * 2016-11-24 2017-02-01 中冶建工集团有限公司 Pushing construction method of single-line railway steel truss bridge utilizing guide beam
CN107244388A (en) * 2017-05-17 2017-10-13 中铁十九局集团有限公司 Floating towboat and bridge erection system, method for installing girder steel
CN114657884A (en) * 2022-04-07 2022-06-24 广西路桥工程集团有限公司 Descending type movable formwork construction method for abutment assembling and segmented propelling
WO2023016573A1 (en) * 2022-05-09 2023-02-16 中铁四局集团有限公司 Construction method for steel-concrete main girder of cable-stayed bridge
CN115387228A (en) * 2022-08-26 2022-11-25 中铁山桥(南通)有限公司 High-stability steel truss beam pushing and floating towing bracket construction method

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